docs: add multi-language output guide

Document how to configure OpenSpec to generate artifacts in languages
other than English using the existing context field in config.yaml.

Includes examples for Portuguese, Spanish, Chinese, Japanese, French,
and German, plus tips for handling technical terminology.

.actrc

@@ -0,0 +1 @@
+-P ubuntu-latest=catthehacker/ubuntu:act-latest

.changeset/README.md

@@ -1,6 +1,95 @@
-This directory is managed by Changesets.
+# Changesets
 
-- Add a changeset locally with `pnpm changeset`.
-- The CI "Release (prepare)" workflow opens/updates a Version Packages PR.
-- Publishing happens from a GitHub Release via the "Publish to npm" workflow.
+This directory is managed by [Changesets](https://github.com/changesets/changesets).
 
+## Quick Start
+
+```bash
+pnpm changeset
+```
+
+Follow the prompts to select version bump type and describe your changes.
+
+## Workflow
+
+1. **Add a changeset** — Run `pnpm changeset` locally before or after your PR
+2. **Version PR** — CI opens/updates a "Version Packages" PR when changesets merge to main
+3. **Release** — Merging the Version PR triggers npm publish and GitHub Release
+
+> **Note:** Contributors only need to run `pnpm changeset`. Versioning (`changeset version`) and publishing happen automatically in CI.
+
+## Template
+
+Use this structure for your changeset content:
+
+```markdown
+---
+"@fission-ai/openspec": patch
+---
+
+### New Features
+
+- **Feature name** — What users can now do
+
+### Bug Fixes
+
+- Fixed issue where X happened when Y
+
+### Breaking Changes
+
+- `oldMethod()` has been removed, use `newMethod()` instead
+
+### Deprecations
+
+- `legacyOption` is deprecated and will be removed in v2.0
+
+### Other
+
+- Internal refactoring of X for better performance
+```
+
+Include only the sections relevant to your change.
+
+## Version Bump Guide
+
+| Type | When to use | Example |
+|------|-------------|---------|
+| `patch` | Bug fixes, small improvements | Fixed crash when config missing |
+| `minor` | New features, non-breaking additions | Added `--verbose` flag |
+| `major` | Breaking changes, removed features | Renamed `init` to `setup` |
+
+## When to Create a Changeset
+
+**Create one for:**
+- New features or commands
+- Bug fixes that affect users
+- Breaking changes or deprecations
+- Performance improvements users would notice
+
+**Skip for:**
+- Documentation-only changes
+- Test additions/fixes
+- Internal refactoring with no user impact
+- CI/tooling changes
+
+## Writing Good Descriptions
+
+**Do:** Write for users, not developers
+```markdown
+- **Shell completions** — Tab completion now available for Bash, Fish, and PowerShell
+```
+
+**Don't:** Write implementation details
+```markdown
+- Added ShellCompletionGenerator class with Bash/Fish/PowerShell subclasses
+```
+
+**Do:** Explain the impact
+```markdown
+- Fixed config loading to respect `XDG_CONFIG_HOME` on Linux
+```
+
+**Don't:** Just reference the fix
+```markdown
+- Fixed #123
+```

.changeset/config.json

@@ -1,6 +1,9 @@
 {
   "$schema": "https://unpkg.com/@changesets/config/schema.json",
-  "changelog": "@changesets/cli/changelog",
+  "changelog": [
+    "@changesets/changelog-github",
+    { "repo": "Fission-AI/OpenSpec" }
+  ],
   "commit": false,
   "fixed": [],
   "linked": [],

.github/workflows/README.md

@@ -0,0 +1,20 @@
+# Github Workflows
+
+## Testing CI Locally
+
+Test GitHub Actions workflows locally using [act](https://nektosact.com/):
+
+```bash
+# Test all PR checks
+act pull_request
+
+# Test specific job
+act pull_request -j nix-flake-validate
+
+# Dry run to see what would execute
+act pull_request --dryrun
+```
+
+The `.actrc` file configures act to use the appropriate Docker image.
+
+

.github/workflows/ci.yml

@@ -15,6 +15,29 @@ concurrency:
   cancel-in-progress: true
 
 jobs:
+  # Detect which files changed to enable path-based filtering
+  changes:
+    name: Detect changes
+    runs-on: ubuntu-latest
+    outputs:
+      nix: ${{ steps.filter.outputs.nix }}
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Check for Nix-related changes
+        uses: dorny/paths-filter@v3
+        id: filter
+        with:
+          filters: |
+            nix:
+              - 'flake.nix'
+              - 'flake.lock'
+              - 'package.json'
+              - 'pnpm-lock.yaml'
+              - 'scripts/update-flake.sh'
+              - '.github/workflows/ci.yml'
+
   test_pr:
     name: Test
     runs-on: ubuntu-latest
@@ -142,6 +165,9 @@ jobs:
       - name: Type check
         run: pnpm exec tsc --noEmit
 
+      - name: Lint
+        run: pnpm lint
+
       - name: Check for build artifacts
         run: |
           if [ ! -d "dist" ]; then
@@ -153,6 +179,66 @@ jobs:
             exit 1
           fi
 
+  nix-flake-validate:
+    name: Nix Flake Validation
+    runs-on: ubuntu-latest
+    timeout-minutes: 10
+    needs: changes
+    if: needs.changes.outputs.nix == 'true'
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Install Nix
+        uses: DeterminateSystems/nix-installer-action@v13
+
+      - name: Setup Nix cache
+        uses: DeterminateSystems/magic-nix-cache-action@v8
+
+      - name: Build with Nix
+        run: nix build
+
+      - name: Verify build output
+        run: |
+          if [ ! -e "result" ]; then
+            echo "Error: Nix build output 'result' symlink not found"
+            exit 1
+          fi
+          if [ ! -f "result/bin/openspec" ]; then
+            echo "Error: openspec binary not found in build output"
+            exit 1
+          fi
+          echo "✅ Build output verified"
+
+      - name: Test binary execution
+        run: |
+          VERSION=$(nix run . -- --version)
+          echo "OpenSpec version: $VERSION"
+          if [ -z "$VERSION" ]; then
+            echo "Error: Version command returned empty output"
+            exit 1
+          fi
+          echo "✅ Binary execution successful"
+
+      - name: Validate update script
+        run: |
+          echo "Testing update-flake.sh script..."
+          bash scripts/update-flake.sh
+          echo "✅ Update script executed successfully"
+
+      - name: Check flake.nix modifications
+        run: |
+          if git diff --quiet flake.nix; then
+            echo "⚠️  Warning: flake.nix was not modified by update script"
+          else
+            echo "✅ flake.nix was updated by script"
+            git diff flake.nix
+          fi
+
+      - name: Restore flake.nix
+        if: always()
+        run: git checkout -- flake.nix || true
+
   validate-changesets:
     name: Validate Changesets
     runs-on: ubuntu-latest
@@ -188,7 +274,7 @@ jobs:
   required-checks-pr:
     name: All checks passed
     runs-on: ubuntu-latest
-    needs: [test_pr, lint]
+    needs: [test_pr, lint, nix-flake-validate]
     if: always() && github.event_name == 'pull_request'
     steps:
       - name: Verify all checks passed
@@ -201,12 +287,20 @@ jobs:
             echo "Lint job failed"
             exit 1
           fi
+          # Nix validation may be skipped if no Nix-related files changed
+          if [[ "${{ needs.nix-flake-validate.result }}" != "success" && "${{ needs.nix-flake-validate.result }}" != "skipped" ]]; then
+            echo "Nix flake validation job failed"
+            exit 1
+          fi
+          if [[ "${{ needs.nix-flake-validate.result }}" == "skipped" ]]; then
+            echo "Nix flake validation skipped (no Nix-related changes)"
+          fi
           echo "All required checks passed!"
 
   required-checks-main:
     name: All checks passed
     runs-on: ubuntu-latest
-    needs: [test_matrix, lint]
+    needs: [test_matrix, lint, nix-flake-validate]
     if: always() && github.event_name != 'pull_request'
     steps:
       - name: Verify all checks passed
@@ -219,4 +313,12 @@ jobs:
             echo "Lint job failed"
             exit 1
           fi
+          # Nix validation may be skipped if no Nix-related files changed
+          if [[ "${{ needs.nix-flake-validate.result }}" != "success" && "${{ needs.nix-flake-validate.result }}" != "skipped" ]]; then
+            echo "Nix flake validation job failed"
+            exit 1
+          fi
+          if [[ "${{ needs.nix-flake-validate.result }}" == "skipped" ]]; then
+            echo "Nix flake validation skipped (no Nix-related changes)"
+          fi
           echo "All required checks passed!"

.github/workflows/polish-release-notes.yml

@@ -0,0 +1,146 @@
+name: Polish Release Notes
+
+# Uses Claude to transform raw changelog into polished release notes.
+# Triggered automatically by release-prepare after publishing, or manually.
+on:
+  workflow_dispatch:
+    inputs:
+      tag_name:
+        description: 'Release tag to polish (e.g., v0.18.0)'
+        required: true
+        type: string
+
+env:
+  TAG_NAME: ${{ inputs.tag_name }}
+
+permissions:
+  contents: write
+
+jobs:
+  polish:
+    # Only run on the main repo, not forks
+    if: github.repository == 'Fission-AI/OpenSpec'
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Get current release body
+        id: get-release
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          gh release view "${{ env.TAG_NAME }}" --json body -q '.body' > current-notes.md
+          echo "Fetched release notes for ${{ env.TAG_NAME }}"
+
+      - name: Transform release notes with Claude
+        uses: anthropics/claude-code-action@v1
+        id: claude
+        with:
+          claude_code_oauth_token: ${{ secrets.CLAUDE_CODE_OAUTH_TOKEN }}
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          claude_args: "--allowedTools Write,Read"
+          prompt: |
+            Transform the changelog in `current-notes.md` into release notes for OpenSpec ${{ env.TAG_NAME }}.
+
+            ## Voice
+
+            OpenSpec is a developer tool. Write like you're talking to a peer:
+            - Direct and practical, not marketing copy
+            - Focus on what changed and why it matters
+            - Skip the hype, keep it real
+
+            ## Output
+
+            Create two files:
+
+            ### 1. `release-title.txt`
+
+            A short title in this format:
+            ```
+            ${{ env.TAG_NAME }} - [1-4 words describing the release]
+            ```
+
+            Examples:
+            - `v0.18.0 - OPSX Experimental Workflow`
+            - `v0.16.0 - Antigravity, iFlow Support`
+            - `v0.15.0 - Gemini CLI, RooCode`
+
+            Rules for title:
+            - Lead with the most notable addition
+            - 1-4 words after the dash, no fluff
+            - If multiple features, comma-separate the top 2
+            - For bugfix-only releases, use something like `v0.17.2 - Pre-commit Hook Fix`
+
+            ### 2. `polished-notes.md`
+
+            ```markdown
+            ## What's New in ${{ env.TAG_NAME }}
+
+            [One sentence: what's the theme of this release?]
+
+            ### New
+
+            - **Feature name** - What it does and why you'd use it
+
+            ### Improved
+
+            - **Area** - What got better
+
+            ### Fixed
+
+            - What was broken, now works
+            ```
+
+            Omit empty sections.
+
+            ## Rules
+
+            1. Write for developers using OpenSpec with AI coding assistants
+            2. Remove commit hashes (like `eb152eb:`), PR numbers, and changesets wrappers (`### Minor Changes`)
+            3. Lead with what users can do, not implementation details
+            4. One to two sentences per item, max
+            5. Use **bold** for feature/area names
+            6. Skip internal changes (CI, refactors, tests) unless they affect users
+            7. If the input is already well-formatted, just clean up structure and remove noise
+
+            ## Example
+
+            Before:
+            ```
+            ### Minor Changes
+            - 8dfd824: Add OPSX experimental workflow commands and enhanced artifact system
+              **New Commands:**
+              - `/opsx:ff` - Fast-forward through artifact creation
+            ```
+
+            After (polished-notes.md):
+            ```
+            ### New
+
+            - **Fast-forward mode** - Generate all planning artifacts at once with `/opsx:ff`. Useful when you already know what you're building.
+            ```
+
+            After (release-title.txt):
+            ```
+            v0.18.0 - OPSX Experimental Workflow
+            ```
+
+            Write both files. No other output.
+
+      - name: Update release
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          TAG="${{ env.TAG_NAME }}"
+
+          if [ -f "polished-notes.md" ] && [ -f "release-title.txt" ]; then
+            TITLE=$(cat release-title.txt)
+            gh release edit "$TAG" --title "$TITLE" --notes-file polished-notes.md
+            echo "Updated: $TITLE"
+          elif [ -f "polished-notes.md" ]; then
+            gh release edit "$TAG" --notes-file polished-notes.md
+            echo "Updated notes (title unchanged)"
+          else
+            echo "No changes generated, keeping original"
+          fi

.github/workflows/release-prepare.yml

@@ -7,6 +7,7 @@ on:
 permissions:
   contents: write
   pull-requests: write
+  id-token: write # Required for npm OIDC trusted publishing
 
 concurrency:
   group: release-${{ github.ref }}
@@ -17,9 +18,20 @@ jobs:
     if: github.repository == 'Fission-AI/OpenSpec'
     runs-on: ubuntu-latest
     steps:
+      # Generate GitHub App token first - used for checkout and changesets
+      # This allows git operations to trigger CI workflows on the version PR
+      # (GITHUB_TOKEN cannot trigger workflows by design)
+      - name: Generate GitHub App Token
+        id: app-token
+        uses: actions/create-github-app-token@v2
+        with:
+          app-id: ${{ vars.APP_ID }}
+          private-key: ${{ secrets.APP_PRIVATE_KEY }}
+
       - uses: actions/checkout@v4
         with:
           fetch-depth: 0
+          token: ${{ steps.app-token.outputs.token }}
 
       - uses: pnpm/action-setup@v4
         with:
@@ -27,16 +39,15 @@ jobs:
 
       - uses: actions/setup-node@v4
         with:
-          node-version: '20'
+          node-version: '24' # Node 24 includes npm 11.5.1+ required for OIDC
           cache: 'pnpm'
           registry-url: 'https://registry.npmjs.org'
-          scope: '@fission-ai'
-          always-auth: true
 
       - run: pnpm install --frozen-lockfile
 
       # Opens/updates the Version Packages PR; publishes when the Version PR merges
       - name: Create/Update Version PR
+        id: changesets
         uses: changesets/action@v1
         with:
           title: 'chore(release): version packages'
@@ -45,6 +56,16 @@ jobs:
           # so package.json already contains the bumped version.
           publish: pnpm run release:ci
         env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-          NPM_TOKEN: ${{ secrets.NPM_TOKEN }}
-          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
+          GITHUB_TOKEN: ${{ steps.app-token.outputs.token }}
+          # npm authentication handled via OIDC trusted publishing (no token needed)
+
+      # Trigger release notes polishing after a release is published
+      - name: Polish release notes
+        if: steps.changesets.outputs.published == 'true'
+        env:
+          GH_TOKEN: ${{ steps.app-token.outputs.token }}
+        run: |
+          # Get version from package.json (just bumped by changesets)
+          TAG="v$(jq -r .version package.json)"
+          echo "Triggering polish workflow for $TAG"
+          gh workflow run polish-release-notes.yml -f tag_name="$TAG"

.gitignore

@@ -140,8 +140,6 @@ dist/
 vite.config.js.timestamp-*
 vite.config.ts.timestamp-*
 
-# Internal Docs
-docs/
 
 # Claude
 .claude/
@@ -150,3 +148,4 @@ CLAUDE.md
 
 # Pnpm
 .pnpm-store/
+result

.repo-updates-log

@@ -1,13 +0,0 @@
-## Repository Updates Log
-
-### 2025-10-29 - Gemini CLI Support PR Created
-
-**PR #256**: feat: Add Gemini CLI support with TOML-based slash commands
-- Status: Open, awaiting review from @TabishB
-- Branch: `feature/add-gemini-cli-support` (commit 1ec30f6)
-- Forked to: https://github.com/snoai/OpenSpec
-- PR URL: https://github.com/Fission-AI/OpenSpec/pull/256
-- Changes: Added `GeminiSlashCommandConfigurator` with TOML-based slash commands (`/openspec:proposal`, `/openspec:apply`, `/openspec:archive`)
-- Testing: All 244 tests passing, build successful
-- Changeset: Added minor version bump
-- Closes: #248

CHANGELOG.md

@@ -1,5 +1,182 @@
 # @fission-ai/openspec
 
+## 0.22.0
+
+### Minor Changes
+
+- [#530](https://github.com/Fission-AI/OpenSpec/pull/530) [`33466b1`](https://github.com/Fission-AI/OpenSpec/commit/33466b1e2a6798bdd6d0e19149173585b0612e6f) Thanks [@TabishB](https://github.com/TabishB)! - Add project-level configuration, project-local schemas, and schema management commands
+
+  **New Features**
+
+  - **Project-level configuration** — Configure OpenSpec behavior per-project via `openspec/config.yaml`, including custom rules injection, context files, and schema resolution settings
+  - **Project-local schemas** — Define custom artifact schemas within your project's `openspec/schemas/` directory for project-specific workflows
+  - **Schema management commands** — New `openspec schema` commands (`list`, `show`, `export`, `validate`) for inspecting and managing artifact schemas (experimental)
+
+  **Bug Fixes**
+
+  - Fixed config loading to handle null `rules` field in project configuration
+
+## 0.21.0
+
+### Minor Changes
+
+- [#516](https://github.com/Fission-AI/OpenSpec/pull/516) [`b5a8847`](https://github.com/Fission-AI/OpenSpec/commit/b5a884748be6156a7bb140b4941cfec4f20a9fc8) Thanks [@TabishB](https://github.com/TabishB)! - Add feedback command and Nix flake support
+
+  **New Features**
+
+  - **Feedback command** — Submit feedback directly from the CLI with `openspec feedback`, which creates GitHub Issues with automatic metadata inclusion and graceful fallback for manual submission
+  - **Nix flake support** — Install and develop openspec using Nix with the new `flake.nix`, including automated flake maintenance and CI validation
+
+  **Bug Fixes**
+
+  - **Explore mode guardrails** — Explore mode now explicitly prevents implementation, keeping the focus on thinking and discovery while still allowing artifact creation
+
+  **Other**
+
+  - Improved change inference in `opsx apply` — automatically detects the target change from conversation context or prompts when ambiguous
+  - Streamlined archive sync assessment with clearer delta spec location guidance
+
+## 0.20.0
+
+### Minor Changes
+
+- [#502](https://github.com/Fission-AI/OpenSpec/pull/502) [`9db74aa`](https://github.com/Fission-AI/OpenSpec/commit/9db74aa5ac6547efadaed795217cfa17444f2004) Thanks [@TabishB](https://github.com/TabishB)! - Add `/opsx:verify` command and fix vitest process storms
+
+  **New Features**
+
+  - **`/opsx:verify` command** — Validate that change implementations match their specifications
+
+  **Bug Fixes**
+
+  - Fixed vitest process storms by capping worker parallelism
+  - Fixed agent workflows to use non-interactive mode for validation commands
+  - Fixed PowerShell completions generator to remove trailing commas
+
+## 0.19.0
+
+### Minor Changes
+
+- eb152eb: Add Continue IDE support, shell completions, and `/opsx:explore` command
+
+  **New Features**
+
+  - **Continue IDE support** – OpenSpec now generates slash commands for [Continue](https://continue.dev/), expanding editor integration options alongside Cursor, Windsurf, Claude Code, and others
+  - **Shell completions for Bash, Fish, and PowerShell** – Run `openspec completion install` to set up tab completion in your preferred shell
+  - **`/opsx:explore` command** – A new thinking partner mode for exploring ideas and investigating problems before committing to changes
+  - **Codebuddy slash command improvements** – Updated frontmatter format for better compatibility
+
+  **Bug Fixes**
+
+  - Shell completions now correctly offer parent-level flags (like `--help`) when a command has subcommands
+  - Fixed Windows compatibility issues in tests
+
+  **Other**
+
+  - Added optional anonymous usage statistics to help understand how OpenSpec is used. This is **opt-out** by default – set `OPENSPEC_TELEMETRY=0` or `DO_NOT_TRACK=1` to disable. Only command names and version are collected; no arguments, file paths, or content. Automatically disabled in CI environments.
+
+## 0.18.0
+
+### Minor Changes
+
+- 8dfd824: Add OPSX experimental workflow commands and enhanced artifact system
+
+  **New Commands:**
+
+  - `/opsx:ff` - Fast-forward through artifact creation, generating all needed artifacts in one go
+  - `/opsx:sync` - Sync delta specs from a change to main specs
+  - `/opsx:archive` - Archive completed changes with smart sync check
+
+  **Artifact Workflow Enhancements:**
+
+  - Schema-aware apply instructions with inline guidance and XML output
+  - Agent schema selection for experimental artifact workflow
+  - Per-change schema metadata via `.openspec.yaml` files
+  - Agent Skills for experimental artifact workflow
+  - Instruction loader for template loading and change context
+  - Restructured schemas as directories with templates
+
+  **Improvements:**
+
+  - Enhanced list command with last modified timestamps and sorting
+  - Change creation utilities for better workflow support
+
+  **Fixes:**
+
+  - Normalize paths for cross-platform glob compatibility
+  - Allow REMOVED requirements when creating new spec files
+
+## 0.17.2
+
+### Patch Changes
+
+- 455c65f: Fix `--no-interactive` flag in validate command to properly disable spinner, preventing hangs in pre-commit hooks and CI environments
+
+## 0.17.1
+
+### Patch Changes
+
+- a2757e7: Fix pre-commit hook hang issue in config command by using dynamic import for @inquirer/prompts
+
+  The config command was causing pre-commit hooks to hang indefinitely due to stdin event listeners being registered at module load time. This fix converts the static import to a dynamic import that only loads inquirer when the `config reset` command is actually used interactively.
+
+  Also adds ESLint with a rule to prevent static @inquirer imports, avoiding future regressions.
+
+## 0.17.0
+
+### Minor Changes
+
+- 2e71835: Add `openspec config` command and Oh-my-zsh completions
+
+  **New Features**
+
+  - Add `openspec config` command for managing global configuration settings
+  - Implement global config directory with XDG Base Directory specification support
+  - Add Oh-my-zsh shell completions support for enhanced CLI experience
+
+  **Bug Fixes**
+
+  - Fix hang in pre-commit hooks by using dynamic imports
+  - Respect XDG_CONFIG_HOME environment variable on all platforms
+  - Resolve Windows compatibility issues in zsh-installer tests
+  - Align cli-completion spec with implementation
+  - Remove hardcoded agent field from slash commands
+
+  **Documentation**
+
+  - Alphabetize AI tools list in README and make it collapsible
+
+## 0.16.0
+
+### Minor Changes
+
+- c08fbc1: Add new AI tool integrations and enhancements:
+
+  - **feat(iflow-cli)**: Add iFlow-cli integration with slash command support and documentation
+  - **feat(init)**: Add IDE restart instruction after init to inform users about slash command availability
+    **feat(antigravity)**: Add Antigravity slash command support
+  - **fix**: Generate TOML commands for Qwen Code (fixes #293)
+  - Clarify scaffold proposal documentation and enhance proposal guidelines
+  - Update proposal guidelines to emphasize design-first approach before implementation
+
+## Unreleased
+
+### Minor Changes
+
+- Add Continue slash command support so `openspec init` can generate `.continue/prompts/openspec-*.prompt` files with MARKDOWN frontmatter and `$ARGUMENTS` placeholder, and refresh them on `openspec update`.
+
+- Add Antigravity slash command support so `openspec init` can generate `.agent/workflows/openspec-*.md` files with description-only frontmatter and `openspec update` refreshes existing workflows alongside Windsurf.
+
+## 0.15.0
+
+### Minor Changes
+
+- 4758c5c: Add support for new AI tools with native slash command integration
+
+  - **Gemini CLI**: Add native TOML-based slash command support for Gemini CLI with `.gemini/commands/openspec/` integration
+  - **RooCode**: Add RooCode integration with configurator, slash commands, and templates
+  - **Cline**: Fix Cline to use workflows instead of rules for slash commands (`.clinerules/workflows/` paths)
+  - **Documentation**: Update documentation to reflect new integrations and workflow changes
+
 ## 0.14.0
 
 ### Minor Changes

MAINTAINERS.md

@@ -0,0 +1,17 @@
+# Maintainers
+
+People who maintain and guide OpenSpec.
+
+## Core Maintainers
+
+| Name | GitHub | Role |
+|------|--------|------|
+| Tabish Bidiwale | [@TabishB](https://github.com/TabishB) | Lead maintainer |
+
+## Advisors
+
+Advisors help shape technical direction and provide guidance to the project.
+
+| Name | GitHub | Focus |
+|------|--------|-------|
+| Hari Krishnan | [@harikrishnan83](https://github.com/harikrishnan83) | Technical direction |

README.md

@@ -26,6 +26,10 @@
   Follow <a href="https://x.com/0xTab">@0xTab on X</a> for updates · Join the <a href="https://discord.gg/YctCnvvshC">OpenSpec Discord</a> for help and questions.
 </p>
 
+<p align="center">
+  <sub>🧪 <strong>New:</strong> <a href="docs/experimental-workflow.md">Experimental Workflow (OPSX)</a> — schema-driven, hackable, fluid. Iterate on workflows without code changes.</sub>
+</p>
+
 # OpenSpec
 
 OpenSpec aligns humans and AI coding assistants with spec-driven development so you agree on what to build before any code is written. **No API keys required.**
@@ -85,39 +89,50 @@ See the full comparison in [How OpenSpec Compares](#how-openspec-compares).
 
 ### Supported AI Tools
 
-#### Native Slash Commands
+<details>
+<summary><strong>Native Slash Commands</strong> (click to expand)</summary>
+
 These tools have built-in OpenSpec commands. Select the OpenSpec integration when prompted.
 
 | Tool | Commands |
 |------|----------|
+| **Amazon Q Developer** | `@openspec-proposal`, `@openspec-apply`, `@openspec-archive` (`.amazonq/prompts/`) |
+| **Antigravity** | `/openspec-proposal`, `/openspec-apply`, `/openspec-archive` (`.agent/workflows/`) |
+| **Auggie (Augment CLI)** | `/openspec-proposal`, `/openspec-apply`, `/openspec-archive` (`.augment/commands/`) |
 | **Claude Code** | `/openspec:proposal`, `/openspec:apply`, `/openspec:archive` |
+| **Cline** | Workflows in `.clinerules/workflows/` directory (`.clinerules/workflows/openspec-*.md`) |
 | **CodeBuddy Code (CLI)** | `/openspec:proposal`, `/openspec:apply`, `/openspec:archive` (`.codebuddy/commands/`) — see [docs](https://www.codebuddy.ai/cli) |
+| **Codex** | `/openspec-proposal`, `/openspec-apply`, `/openspec-archive` (global: `~/.codex/prompts`, auto-installed) |
+| **Continue** | `/openspec-proposal`, `/openspec-apply`, `/openspec-archive` (`.continue/prompts/`) |
 | **CoStrict** | `/openspec-proposal`, `/openspec-apply`, `/openspec-archive` (`.cospec/openspec/commands/`) — see [docs](https://costrict.ai)|
-| **Cursor** | `/openspec-proposal`, `/openspec-apply`, `/openspec-archive` |
-| **Cline** | Rules in `.clinerules/` directory (`.clinerules/openspec-*.md`) |
 | **Crush** | `/openspec-proposal`, `/openspec-apply`, `/openspec-archive` (`.crush/commands/openspec/`) |
+| **Cursor** | `/openspec-proposal`, `/openspec-apply`, `/openspec-archive` |
 | **Factory Droid** | `/openspec-proposal`, `/openspec-apply`, `/openspec-archive` (`.factory/commands/`) |
 | **Gemini CLI** | `/openspec:proposal`, `/openspec:apply`, `/openspec:archive` (`.gemini/commands/openspec/`) |
-| **OpenCode** | `/openspec-proposal`, `/openspec-apply`, `/openspec-archive` |
-| **Kilo Code** | `/openspec-proposal.md`, `/openspec-apply.md`, `/openspec-archive.md` (`.kilocode/workflows/`) |
-| **Qoder (CLI)** | `/openspec:proposal`, `/openspec:apply`, `/openspec:archive` (`.qoder/commands/openspec/`) — see [docs](https://qoder.com/cli) |
-| **Windsurf** | `/openspec-proposal`, `/openspec-apply`, `/openspec-archive` (`.windsurf/workflows/`) |
-| **Codex** | `/openspec-proposal`, `/openspec-apply`, `/openspec-archive` (global: `~/.codex/prompts`, auto-installed) |
 | **GitHub Copilot** | `/openspec-proposal`, `/openspec-apply`, `/openspec-archive` (`.github/prompts/`) |
-| **Amazon Q Developer** | `@openspec-proposal`, `@openspec-apply`, `@openspec-archive` (`.amazonq/prompts/`) |
-| **Auggie (Augment CLI)** | `/openspec-proposal`, `/openspec-apply`, `/openspec-archive` (`.augment/commands/`) |
+| **iFlow (iflow-cli)** | `/openspec-proposal`, `/openspec-apply`, `/openspec-archive` (`.iflow/commands/`) |
+| **Kilo Code** | `/openspec-proposal.md`, `/openspec-apply.md`, `/openspec-archive.md` (`.kilocode/workflows/`) |
+| **OpenCode** | `/openspec-proposal`, `/openspec-apply`, `/openspec-archive` |
+| **Qoder (CLI)** | `/openspec:proposal`, `/openspec:apply`, `/openspec:archive` (`.qoder/commands/openspec/`) — see [docs](https://qoder.com/cli) |
 | **Qwen Code** | `/openspec-proposal`, `/openspec-apply`, `/openspec-archive` (`.qwen/commands/`) |
-
+| **RooCode** | `/openspec-proposal`, `/openspec-apply`, `/openspec-archive` (`.roo/commands/`) |
+| **Windsurf** | `/openspec-proposal`, `/openspec-apply`, `/openspec-archive` (`.windsurf/workflows/`) |
 
 Kilo Code discovers team workflows automatically. Save the generated files under `.kilocode/workflows/` and trigger them from the command palette with `/openspec-proposal.md`, `/openspec-apply.md`, or `/openspec-archive.md`.
 
-#### AGENTS.md Compatible
+</details>
+
+<details>
+<summary><strong>AGENTS.md Compatible</strong> (click to expand)</summary>
+
 These tools automatically read workflow instructions from `openspec/AGENTS.md`. Ask them to follow the OpenSpec workflow if they need a reminder. Learn more about the [AGENTS.md convention](https://agents.md/).
 
 | Tools |
 |-------|
 | Amp • Jules • Others |
 
+</details>
+
 ### Install & Initialize
 
 #### Prerequisites
@@ -125,6 +140,8 @@ These tools automatically read workflow instructions from `openspec/AGENTS.md`.
 
 #### Step 1: Install the CLI globally
 
+**Option A: Using npm**
+
 ```bash
 npm install -g @fission-ai/openspec@latest
 ```
@@ -134,6 +151,39 @@ Verify installation:
 openspec --version
 ```
 
+**Option B: Using Nix (NixOS and Nix package manager)**
+
+Run OpenSpec directly without installation:
+```bash
+nix run github:Fission-AI/OpenSpec -- init
+```
+
+Or install to your profile:
+```bash
+nix profile install github:Fission-AI/OpenSpec
+```
+
+Or add to your development environment in `flake.nix`:
+```nix
+{
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+    openspec.url = "github:Fission-AI/OpenSpec";
+  };
+
+  outputs = { nixpkgs, openspec, ... }: {
+    devShells.x86_64-linux.default = nixpkgs.legacyPackages.x86_64-linux.mkShell {
+      buildInputs = [ openspec.packages.x86_64-linux.default ];
+    };
+  };
+}
+```
+
+Verify installation:
+```bash
+openspec --version
+```
+
 #### Step 2: Initialize OpenSpec in your project
 
 Navigate to your project directory:
@@ -233,7 +283,7 @@ Or run the command yourself in terminal:
 $ openspec archive add-profile-filters --yes  # Archive the completed change without prompts
 ```
 
-**Note:** Tools with native slash commands (Claude Code, CodeBuddy, Cursor, Codex, Qoder) can use the shortcuts shown. All other tools work with natural language requests to "create an OpenSpec proposal", "apply the OpenSpec change", or "archive the change".
+**Note:** Tools with native slash commands (Claude Code, CodeBuddy, Cursor, Codex, Qoder, RooCode) can use the shortcuts shown. All other tools work with natural language requests to "create an OpenSpec proposal", "apply the OpenSpec change", or "archive the change".
 
 ## Command Reference
 
@@ -358,6 +408,53 @@ Run `openspec update` whenever someone switches tools so your agents pick up the
 2. **Refresh agent instructions**
    - Run `openspec update` inside each project to regenerate AI guidance and ensure the latest slash commands are active.
 
+## Experimental Features
+
+<details>
+<summary><strong>🧪 OPSX: Fluid, Iterative Workflow</strong> (Claude Code only)</summary>
+
+**Why this exists:**
+- Standard workflow is locked down — you can't tweak instructions or customize
+- When AI output is bad, you can't improve the prompts yourself
+- Same workflow for everyone, no way to match how your team works
+
+**What's different:**
+- **Hackable** — edit templates and schemas yourself, test immediately, no rebuild
+- **Granular** — each artifact has its own instructions, test and tweak individually
+- **Customizable** — define your own workflows, artifacts, and dependencies
+- **Fluid** — no phase gates, update any artifact anytime
+
+```
+You can always go back:
+
+  proposal ──→ specs ──→ design ──→ tasks ──→ implement
+     ▲           ▲          ▲                    │
+     └───────────┴──────────┴────────────────────┘
+```
+
+| Command | What it does |
+|---------|--------------|
+| `/opsx:new` | Start a new change |
+| `/opsx:continue` | Create the next artifact (based on what's ready) |
+| `/opsx:ff` | Fast-forward (all planning artifacts at once) |
+| `/opsx:apply` | Implement tasks, updating artifacts as needed |
+| `/opsx:archive` | Archive when done |
+
+**Setup:** `openspec artifact-experimental-setup`
+
+[Full documentation →](docs/experimental-workflow.md)
+
+</details>
+
+<details>
+<summary><strong>Telemetry</strong> – OpenSpec collects anonymous usage stats (opt-out: <code>OPENSPEC_TELEMETRY=0</code>)</summary>
+
+We collect only command names and version to understand usage patterns. No arguments, paths, content, or PII. Automatically disabled in CI.
+
+**Opt-out:** `export OPENSPEC_TELEMETRY=0` or `export DO_NOT_TRACK=1`
+
+</details>
+
 ## Contributing
 
 - Install dependencies: `pnpm install`
@@ -366,6 +463,13 @@ Run `openspec update` whenever someone switches tools so your agents pick up the
 - Develop CLI locally: `pnpm run dev` or `pnpm run dev:cli`
 - Conventional commits (one-line): `type(scope): subject`
 
+<details>
+<summary><strong>Maintainers & Advisors</strong></summary>
+
+See [MAINTAINERS.md](MAINTAINERS.md) for the list of core maintainers and advisors who help guide the project.
+
+</details>
+
 ## License
 
 MIT

docs/artifact_poc.md

@@ -0,0 +1,597 @@
+# POC-OpenSpec-Core Analysis
+
+---
+
+## Design Decisions & Terminology
+
+### Philosophy: Not a Workflow System
+
+This system is **not** a workflow engine. It's an **artifact tracker with dependency awareness**.
+
+| What it's NOT | What it IS |
+|---------------|------------|
+| Linear step-by-step progression | Exploratory, iterative planning |
+| Bureaucratic checkpoints | Enablers that unlock possibilities |
+| "You must complete step 1 first" | "Here's what you could create now" |
+| Form-filling | Fluid document creation |
+
+**Key insight:** Dependencies are *enablers*, not *gates*. You can't meaningfully write a design document if there's no proposal to design from - that's not bureaucracy, it's logic.
+
+### Terminology
+
+| Term | Definition | Example |
+|------|------------|---------|
+| **Change** | A unit of work being planned (feature, refactor, migration) | `openspec/changes/add-auth/` |
+| **Schema** | An artifact graph definition (what artifacts exist, their dependencies) | `spec-driven.yaml` |
+| **Artifact** | A node in the graph (a document to create) | `proposal`, `design`, `specs` |
+| **Template** | Instructions/guidance for creating an artifact | `templates/proposal.md` |
+
+### Hierarchy
+
+```
+Schema (defines) ──→ Artifacts (guided by) ──→ Templates
+```
+
+- **Schema** = the artifact graph (what exists, dependencies)
+- **Artifact** = a document to produce
+- **Template** = instructions for creating that artifact
+
+### Schema Variations
+
+Schemas can vary across multiple dimensions:
+
+| Dimension | Examples |
+|-----------|----------|
+| Philosophy | `spec-driven`, `tdd`, `prototype-first` |
+| Version | `v1`, `v2`, `v3` |
+| Language | `en`, `zh`, `es` |
+| Custom | `team-alpha`, `experimental` |
+
+### Schema Resolution (XDG Standard)
+
+Schemas follow the XDG Base Directory Specification with a 2-level resolution:
+
+```
+1. ${XDG_DATA_HOME}/openspec/schemas/<name>/schema.yaml   # Global user override
+2. <package>/schemas/<name>/schema.yaml                    # Built-in defaults
+```
+
+**Platform-specific paths:**
+- Unix/macOS: `~/.local/share/openspec/schemas/`
+- Windows: `%LOCALAPPDATA%/openspec/schemas/`
+- All platforms: `$XDG_DATA_HOME/openspec/schemas/` (when set)
+
+**Why XDG?**
+- Schemas are workflow definitions (data), not user preferences (config)
+- Built-ins baked into package, never auto-copied
+- Users customize by creating files in global data dir
+- Consistent with modern CLI tooling standards
+
+### Template Inheritance (2 Levels Max)
+
+Templates are co-located with schemas in a `templates/` subdirectory:
+
+```
+1. ${XDG_DATA_HOME}/openspec/schemas/<schema>/templates/<artifact>.md  # User override
+2. <package>/schemas/<schema>/templates/<artifact>.md                   # Built-in
+```
+
+**Rules:**
+- User overrides take precedence over package built-ins
+- A CLI command shows resolved paths (no guessing)
+- No inheritance between schemas (copy if you need to diverge)
+- Templates are always co-located with their schema
+
+**Why this matters:**
+- Avoids "where does this come from?" debugging
+- No implicit magic that works until it doesn't
+- Schema + templates form a cohesive unit
+
+---
+
+## Executive Summary
+
+This is an **artifact tracker with dependency awareness** that guides iterative development through a structured artifact pipeline. The core innovation is using the **filesystem as a database** - artifact completion is detected by file existence, making the system stateless and version-control friendly.
+
+The system answers:
+- "What artifacts exist for this change?"
+- "What could I create next?" (not "what must I create")
+- "What's blocking X?" (informational, not prescriptive)
+
+---
+
+## Core Components
+
+### 1. ArtifactGraph (Slice 1 - COMPLETE)
+
+The dependency graph engine with XDG-compliant schema resolution.
+
+| Responsibility | Approach |
+|----------------|----------|
+| Model artifacts as a DAG | Artifact with `requires: string[]` |
+| Track completion state | `Set<string>` for completed artifacts |
+| Calculate build order | Kahn's algorithm (topological sort) |
+| Find ready artifacts | Check if all dependencies are in `completed` set |
+| Resolve schemas | XDG global → package built-ins |
+
+**Key Data Structures (Zod-validated):**
+
+```typescript
+// Zod schemas define types + validation
+const ArtifactSchema = z.object({
+  id: z.string().min(1),
+  generates: z.string().min(1),      // e.g., "proposal.md" or "specs/*.md"
+  description: z.string(),
+  template: z.string(),              // path to template file
+  requires: z.array(z.string()).default([]),
+});
+
+const SchemaYamlSchema = z.object({
+  name: z.string().min(1),
+  version: z.number().int().positive(),
+  description: z.string().optional(),
+  artifacts: z.array(ArtifactSchema).min(1),
+});
+
+// Derived types
+type Artifact = z.infer<typeof ArtifactSchema>;
+type SchemaYaml = z.infer<typeof SchemaYamlSchema>;
+```
+
+**Key Methods:**
+- `resolveSchema(name)` - Load schema with XDG fallback
+- `ArtifactGraph.fromSchema(schema)` - Build graph from schema
+- `detectState(graph, changeDir)` - Scan filesystem for completion
+- `getNextArtifacts(graph, completed)` - Find artifacts ready to create
+- `getBuildOrder(graph)` - Topological sort of all artifacts
+- `getBlocked(graph, completed)` - Artifacts with unmet dependencies
+
+---
+
+### 2. Change Utilities (Slice 2)
+
+Simple utility functions for programmatic change creation. No class, no abstraction layer.
+
+| Responsibility | Approach |
+|----------------|----------|
+| Create changes | Create dirs under `openspec/changes/<name>/` with README |
+| Name validation | Enforce kebab-case naming |
+
+**Key Paths:**
+
+```
+openspec/changes/<name>/   → Change instances with artifacts (project-level)
+```
+
+**Key Functions** (`src/utils/change-utils.ts`):
+- `createChange(projectRoot, name, description?)` - Create new change directory + README
+- `validateChangeName(name)` - Validate kebab-case naming, returns `{ valid, error? }`
+
+**Note:** Existing CLI commands (`ListCommand`, `ChangeCommand`) already handle listing, path resolution, and existence checks. No need to extract that logic - it works fine as-is.
+
+---
+
+### 3. InstructionLoader (Slice 3)
+
+Template resolution and instruction enrichment.
+
+| Responsibility | Approach |
+|----------------|----------|
+| Resolve templates | XDG 2-level fallback (schema-specific → shared → built-in) |
+| Build dynamic context | Gather dependency status, change info |
+| Enrich templates | Inject context into base templates |
+| Generate status reports | Formatted markdown with progress |
+
+**Key Class - ChangeState:**
+
+```
+ChangeState {
+  changeName: string
+  changeDir: string
+  graph: ArtifactGraph
+  completed: Set<string>
+
+  // Methods
+  getNextSteps(): string[]
+  getStatus(artifactId): ArtifactStatus
+  isComplete(): boolean
+}
+```
+
+**Key Functions:**
+- `getTemplatePath(artifactId, schemaName?)` - Resolve with 2-level fallback
+- `getEnrichedInstructions(artifactId, projectRoot, changeName?)` - Main entry point
+- `getChangeStatus(projectRoot, changeName?)` - Formatted status report
+
+---
+
+### 4. CLI (Slice 4)
+
+User interface layer. **All commands are deterministic** - require explicit `--change` parameter.
+
+| Command | Function | Status |
+|---------|----------|--------|
+| `status --change <id>` | Show change progress (artifact graph) | **NEW** |
+| `next --change <id>` | Show artifacts ready to create | **NEW** |
+| `instructions <artifact> --change <id>` | Get enriched instructions for artifact | **NEW** |
+| `list` | List all changes | EXISTS (`openspec change list`) |
+| `new <name>` | Create change | **NEW** (uses `createChange()`) |
+| `init` | Initialize structure | EXISTS (`openspec init`) |
+| `templates --change <id>` | Show resolved template paths | **NEW** |
+
+**Note:** Commands that operate on a change require `--change`. Missing parameter → error with list of available changes. Agent infers the change from conversation and passes it explicitly.
+
+**Existing CLI commands** (not part of this slice):
+- `openspec change list` / `openspec change show <id>` / `openspec change validate <id>`
+- `openspec list --changes` / `openspec list --specs`
+- `openspec view` (dashboard)
+- `openspec init` / `openspec archive <change>`
+
+---
+
+### 5. Claude Commands
+
+Integration layer for Claude Code. **Operational commands only** - artifact creation via natural language.
+
+| Command | Purpose |
+|---------|---------|
+| `/status` | Show change progress |
+| `/next` | Show what's ready to create |
+| `/run [artifact]` | Execute a specific step (power users) |
+| `/list` | List all changes |
+| `/new <name>` | Create a new change |
+| `/init` | Initialize structure |
+
+**Artifact creation:** Users say "create the proposal" or "write the tests" in natural language. The agent:
+1. Infers change from conversation (confirms if uncertain)
+2. Infers artifact from request
+3. Calls CLI with explicit `--change` parameter
+4. Creates artifact following instructions
+
+This works for ANY artifact in ANY schema - no new slash commands needed when schemas change.
+
+**Note:** Legacy commands (`/openspec-proposal`, `/openspec-apply`, `/openspec-archive`) exist in the main project for backward compatibility but are separate from this architecture.
+
+---
+
+## Component Dependency Graph
+
+```
+┌─────────────────────────────────────────────────────────────┐
+│                     PRESENTATION LAYER                       │
+│  ┌──────────────┐                    ┌────────────────────┐ │
+│  │     CLI      │ ←─shell exec───────│ Claude Commands    │ │
+│  └──────┬───────┘                    └────────────────────┘ │
+└─────────┼───────────────────────────────────────────────────┘
+          │ imports
+          ▼
+┌─────────────────────────────────────────────────────────────┐
+│                    ORCHESTRATION LAYER                       │
+│  ┌────────────────────┐        ┌──────────────────────────┐ │
+│  │ InstructionLoader  │        │  change-utils (Slice 2)  │ │
+│  │    (Slice 3)       │        │  createChange()          │ │
+│  └─────────┬──────────┘        │  validateChangeName()    │ │
+│            │                   └──────────────────────────┘ │
+└────────────┼────────────────────────────────────────────────┘
+             │ uses
+             ▼
+┌─────────────────────────────────────────────────────────────┐
+│                      CORE LAYER                              │
+│  ┌──────────────────────────────────────────────────────┐   │
+│  │               ArtifactGraph (Slice 1)                │   │
+│  │                                                      │   │
+│  │  Schema Resolution (XDG) ──→ Graph ──→ State Detection│   │
+│  └──────────────────────────────────────────────────────┘   │
+└─────────────────────────────────────────────────────────────┘
+             ▲
+             │ reads from
+             ▼
+┌─────────────────────────────────────────────────────────────┐
+│                   PERSISTENCE LAYER                          │
+│  ┌──────────────────┐   ┌────────────────────────────────┐  │
+│  │  XDG Schemas     │   │  Project Artifacts             │  │
+│  │  ~/.local/share/ │   │  openspec/changes/<name>/      │  │
+│  │  openspec/       │   │  - proposal.md, design.md      │  │
+│  │  schemas/        │   │  - specs/*.md, tasks.md        │  │
+│  └──────────────────┘   └────────────────────────────────┘  │
+└─────────────────────────────────────────────────────────────┘
+```
+
+---
+
+## Key Design Patterns
+
+### 1. Filesystem as Database
+
+No SQLite, no JSON state files. The existence of `proposal.md` means proposal is complete.
+
+```
+// State detection is just file existence checking
+if (exists(artifactPath)) {
+  completed.add(artifactId)
+}
+```
+
+### 2. Deterministic CLI, Inferring Agent
+
+**CLI layer:** Always deterministic - requires explicit `--change` parameter.
+
+```
+openspec status --change add-auth     # explicit, works
+openspec status                        # error: "No change specified"
+```
+
+**Agent layer:** Infers from conversation, confirms if uncertain, passes explicit `--change`.
+
+This separation means:
+- CLI is pure, testable, no state to corrupt
+- Agent handles all "smartness"
+- No config.yaml tracking of "active change"
+
+### 3. XDG-Compliant Schema Resolution
+
+```
+${XDG_DATA_HOME}/openspec/schemas/<name>/schema.yaml   # User override
+    ↓ (not found)
+<package>/schemas/<name>/schema.yaml                    # Built-in
+    ↓ (not found)
+Error (schema not found)
+```
+
+### 4. Two-Level Template Fallback
+
+```
+${XDG_DATA_HOME}/openspec/schemas/<schema>/templates/<artifact>.md  # User override
+    ↓ (not found)
+<package>/schemas/<schema>/templates/<artifact>.md                   # Built-in
+    ↓ (not found)
+Error (no silent fallback to avoid confusion)
+```
+
+### 5. Glob Pattern Support
+
+`specs/*.md` allows multiple files to satisfy a single artifact:
+
+```
+if (artifact.generates.includes("*")) {
+  const parentDir = changeDir / patternParts[0]
+  if (exists(parentDir) && hasFiles(parentDir)) {
+    completed.add(artifactId)
+  }
+}
+```
+
+### 6. Stateless State Detection
+
+Every command re-scans the filesystem. No cached state to corrupt.
+
+---
+
+## Artifact Pipeline (Default Schema)
+
+The default `spec-driven` schema:
+
+```
+┌──────────┐
+│ proposal │  (no dependencies)
+└────┬─────┘
+     │
+     ▼
+┌──────────┐
+│  specs   │  (requires: proposal)
+└────┬─────┘
+     │
+     ├──────────────┐
+     ▼              ▼
+┌──────────┐   ┌──────────┐
+│  design  │   │          │
+│          │◄──┤ proposal │
+└────┬─────┘   └──────────┘
+     │         (requires: proposal, specs)
+     ▼
+┌──────────┐
+│  tasks   │  (requires: design)
+└──────────┘
+```
+
+Other schemas (TDD, prototype-first) would have different graphs.
+
+---
+
+## Implementation Order
+
+Structured as **vertical slices** - each slice is independently testable.
+
+---
+
+### Slice 1: "What's Ready?" (Core Query) ✅ COMPLETE
+
+**Delivers:** Types + Graph + State Detection + Schema Resolution
+
+**Implementation:** `src/core/artifact-graph/`
+- `types.ts` - Zod schemas and derived TypeScript types
+- `schema.ts` - YAML parsing with Zod validation
+- `graph.ts` - ArtifactGraph class with topological sort
+- `state.ts` - Filesystem-based state detection
+- `resolver.ts` - XDG-compliant schema resolution
+- `builtin-schemas.ts` - Package-bundled default schemas
+
+**Key decisions made:**
+- Zod for schema validation (consistent with project)
+- XDG for global schema overrides
+- `Set<string>` for completion state (immutable, functional)
+- `inProgress` and `failed` states deferred (require external tracking)
+
+---
+
+### Slice 2: "Change Creation Utilities"
+
+**Delivers:** Utility functions for programmatic change creation
+
+**Scope:**
+- `createChange(projectRoot, name, description?)` → creates directory + README
+- `validateChangeName(name)` → kebab-case pattern enforcement
+
+**Not in scope (already exists in CLI commands):**
+- `listChanges()` → exists in `ListCommand` and `ChangeCommand.getActiveChanges()`
+- `getChangePath()` → simple `path.join()` inline
+- `changeExists()` → simple `fs.access()` inline
+- `isInitialized()` → simple directory check inline
+
+**Why simplified:** Extracting existing CLI logic into a class would require similar refactoring of `SpecCommand` for consistency. The existing code works fine (~15 lines each). Only truly new functionality is `createChange()` + name validation.
+
+---
+
+### Slice 3: "Get Instructions" (Enrichment)
+
+**Delivers:** Template resolution + context injection
+
+**Testable behaviors:**
+- Template fallback: schema-specific → shared → built-in → error
+- Context injection: completed deps show ✓, missing show ✗
+- Output path shown correctly based on change directory
+
+---
+
+### Slice 4: "CLI + Integration"
+
+**Delivers:** New artifact graph commands (builds on existing CLI)
+
+**New commands:**
+- `status --change <id>` - Show artifact completion state
+- `next --change <id>` - Show ready-to-create artifacts
+- `instructions <artifact> --change <id>` - Get enriched template
+- `templates --change <id>` - Show resolved paths
+- `new <name>` - Create change (wrapper for `createChange()`)
+
+**Already exists (not in scope):**
+- `openspec change list/show/validate` - change management
+- `openspec list --changes/--specs` - listing
+- `openspec view` - dashboard
+- `openspec init` - initialization
+
+**Testable behaviors:**
+- Each new command produces expected output
+- Commands compose correctly (status → next → instructions flow)
+- Error handling for missing changes, invalid artifacts, etc.
+
+---
+
+## Directory Structure
+
+```
+# Global (XDG paths - user overrides)
+~/.local/share/openspec/           # Unix/macOS ($XDG_DATA_HOME/openspec/)
+%LOCALAPPDATA%/openspec/           # Windows
+└── schemas/                       # Schema overrides
+    └── custom-workflow/           # User-defined schema directory
+        ├── schema.yaml            # Schema definition
+        └── templates/             # Co-located templates
+            └── proposal.md
+
+# Package (built-in defaults)
+<package>/
+└── schemas/                       # Built-in schema definitions
+    ├── spec-driven/               # Default: proposal → specs → design → tasks
+    │   ├── schema.yaml
+    │   └── templates/
+    │       ├── proposal.md
+    │       ├── design.md
+    │       ├── spec.md
+    │       └── tasks.md
+    └── tdd/                       # TDD: tests → implementation → docs
+        ├── schema.yaml
+        └── templates/
+            ├── test.md
+            ├── implementation.md
+            ├── spec.md
+            └── docs.md
+
+# Project (change instances)
+openspec/
+└── changes/                       # Change instances
+    ├── add-auth/
+    │   ├── README.md              # Auto-generated on creation
+    │   ├── proposal.md            # Created artifacts
+    │   ├── design.md
+    │   └── specs/
+    │       └── *.md
+    ├── refactor-db/
+    │   └── ...
+    └── archive/                   # Completed changes
+        └── 2025-01-01-add-auth/
+
+.claude/
+├── settings.local.json            # Permissions
+└── commands/                      # Slash commands
+    └── *.md
+```
+
+---
+
+## Schema YAML Format
+
+```yaml
+# Built-in: <package>/schemas/spec-driven/schema.yaml
+# Or user override: ~/.local/share/openspec/schemas/spec-driven/schema.yaml
+name: spec-driven
+version: 1
+description: Specification-driven development
+
+artifacts:
+  - id: proposal
+    generates: "proposal.md"
+    description: "Create project proposal document"
+    template: "proposal.md"          # resolves from co-located templates/ directory
+    requires: []
+
+  - id: specs
+    generates: "specs/*.md"          # glob pattern
+    description: "Create technical specification documents"
+    template: "specs.md"
+    requires:
+      - proposal
+
+  - id: design
+    generates: "design.md"
+    description: "Create design document"
+    template: "design.md"
+    requires:
+      - proposal
+      - specs
+
+  - id: tasks
+    generates: "tasks.md"
+    description: "Create tasks breakdown document"
+    template: "tasks.md"
+    requires:
+      - design
+```
+
+---
+
+## Summary
+
+| Layer | Component | Responsibility | Status |
+|-------|-----------|----------------|--------|
+| Core | ArtifactGraph | Pure dependency logic + XDG schema resolution | ✅ Slice 1 COMPLETE |
+| Utils | change-utils | Change creation + name validation only | Slice 2 (new functionality only) |
+| Core | InstructionLoader | Template resolution + enrichment | Slice 3 (all new) |
+| Presentation | CLI | New artifact graph commands | Slice 4 (new commands only) |
+| Integration | Claude Commands | AI assistant glue | Slice 4 |
+
+**What already exists (not in this proposal):**
+- `getActiveChangeIds()` in `src/utils/item-discovery.ts` - list changes
+- `ChangeCommand.list/show/validate()` in `src/commands/change.ts`
+- `ListCommand.execute()` in `src/core/list.ts`
+- `ViewCommand.execute()` in `src/core/view.ts` - dashboard
+- `src/core/init.ts` - initialization
+- `src/core/archive.ts` - archiving
+
+**Key Principles:**
+- **Filesystem IS the database** - stateless, version-control friendly
+- **Dependencies are enablers** - show what's possible, don't force order
+- **Deterministic CLI, inferring agent** - CLI requires explicit `--change`, agent infers from context
+- **XDG-compliant paths** - schemas and templates use standard user data directories
+- **2-level inheritance** - user override → package built-in (no deeper)
+- **Schemas are versioned** - support variations by philosophy, version, language

docs/experimental-release-plan.md

@@ -0,0 +1,926 @@
+# OpenSpec Experimental Release Plan
+
+This document outlines the plan to release the experimental artifact workflow system for user testing.
+
+## Overview
+
+The goal is to allow users to test the new artifact-driven workflow system alongside the existing OpenSpec commands. This experimental system (`opsx`) provides a more granular, step-by-step approach to creating change artifacts.
+
+## Three Workflow Modes
+
+### 1. Old Workflow (Current Production)
+- **Commands**: `/openspec:proposal`, `/openspec:apply`, `/openspec:archive`
+- **Behavior**: Hardcoded slash commands that generate all artifacts in one command
+- **Status**: Production, unchanged
+
+### 2. New Artifact System - Batch Mode (Future)
+- **Commands**: Refactored `/openspec:proposal` using schemas
+- **Behavior**: Schema-driven but generates all artifacts at once (like legacy)
+- **Status**: Not in scope for this experimental release
+- **Note**: This is a future refactor to unify the old system with schemas
+
+### 3. New Artifact System - Granular Mode (Experimental)
+- **Commands**: `/opsx:new`, `/opsx:continue`
+- **Behavior**: One artifact at a time, dependency-driven, iterative
+- **Status**: Target for this experimental release
+
+---
+
+## Work Items
+
+### 1. Rename AWF to OPSX
+
+**Current State:**
+- Commands: `/awf:start`, `/awf:continue`
+- Files: `.claude/commands/awf/start.md`, `.claude/commands/awf/continue.md`
+
+**Target State:**
+- Commands: `/opsx:new`, `/opsx:continue`
+- Files: `.claude/commands/opsx/new.md`, `.claude/commands/opsx/continue.md`
+
+**Tasks:**
+- [x] Create `.claude/commands/opsx/` directory
+- [x] Rename `start.md` → `new.md` and update content
+- [x] Copy `continue.md` with updated references
+- [x] Update all references from "awf" to "opsx" in command content
+- [x] Update frontmatter (name, description) to use "opsx" naming
+- [x] Remove `.claude/commands/awf/` directory
+
+**CLI Commands:**
+The underlying CLI commands (`openspec status`, `openspec instructions`, etc.) remain unchanged. Only the slash command names change.
+
+---
+
+### 2. Remove WF Skill Files
+
+**Current State:**
+- `.claude/commands/wf/start.md` - References non-existent `openspec wf` commands
+- `.claude/commands/wf/continue.md` - References non-existent `openspec wf` commands
+
+**Target State:**
+- Directory and files removed
+
+**Tasks:**
+- [x] Delete `.claude/commands/wf/start.md`
+- [x] Delete `.claude/commands/wf/continue.md`
+- [x] Delete `.claude/commands/wf/` directory
+
+---
+
+### 3. Add Agent Skills for Experimental Workflow
+
+**Purpose:**
+Generate experimental workflow skills using the [Agent Skills](https://agentskills.io/specification) open standard.
+
+**Why Skills Instead of Slash Commands:**
+- **Cross-editor compatibility**: Skills work in Claude Code, Cursor, Windsurf, and other compatible editors automatically
+- **Simpler implementation**: Single directory (`.claude/skills/`) instead of 18+ editor-specific configurators
+- **Standard format**: Open standard with simple YAML frontmatter + markdown
+- **User invocation**: Users explicitly invoke skills when they want to use them
+
+**Behavior:**
+1. Create `.claude/skills/` directory if it doesn't exist
+2. Generate two skills using the Agent Skills specification:
+   - `openspec-new-change/SKILL.md` - Start a new change with artifact workflow
+   - `openspec-continue-change/SKILL.md` - Continue working on a change (create next artifact)
+3. Skills are added **alongside** existing `/openspec:*` commands (not replacing)
+
+**Supported Editors:**
+- Claude Code (native support)
+- Cursor (native support via Settings → Rules → Import Settings)
+- Windsurf (imports `.claude` configs)
+- Cline, Codex, and other Agent Skills-compatible editors
+
+**Tasks:**
+- [x] Create skill template content for `openspec-new-change` (based on current opsx:new)
+- [x] Create skill template content for `openspec-continue-change` (based on current opsx:continue)
+- [x] Add temporary `artifact-experimental-setup` command to CLI
+- [x] Implement skill file generation (YAML frontmatter + markdown body)
+- [x] Add success message with usage instructions
+
+**Note:** The `artifact-experimental-setup` command is temporary and will be merged into `openspec init` once the experimental workflow is promoted to stable.
+
+**Skill Format:**
+Each skill is a directory with a `SKILL.md` file:
+```
+.claude/skills/
+├── openspec-new-change/
+│   └── SKILL.md          # name, description, instructions
+├── openspec-continue-change/
+│   └── SKILL.md          # name, description, instructions
+└── openspec-apply-change/
+    └── SKILL.md          # name, description, instructions
+```
+
+**CLI Interface:**
+```bash
+openspec artifact-experimental-setup
+
+# Output:
+# 🧪 Experimental Artifact Workflow Skills Created
+#
+#   ✓ .claude/skills/openspec-new-change/SKILL.md
+#   ✓ .claude/skills/openspec-continue-change/SKILL.md
+#   ✓ .claude/skills/openspec-apply-change/SKILL.md
+#
+# 📖 Usage:
+#
+#   Skills work automatically in compatible editors:
+#   • Claude Code - Auto-detected, ready to use
+#   • Cursor - Enable in Settings → Rules → Import Settings
+#   • Windsurf - Auto-imports from .claude directory
+#
+#   Ask Claude naturally:
+#   • "I want to start a new OpenSpec change to add <feature>"
+#   • "Continue working on this change"
+#
+#   Claude will automatically use the appropriate skill.
+#
+# 💡 This is an experimental feature.
+#    Feedback welcome at: https://github.com/Fission-AI/OpenSpec/issues
+```
+
+**Implementation Notes:**
+- Simple file writing: Create directories and write templated `SKILL.md` files (no complex logic)
+- Use existing `FileSystemUtils.writeFile()` pattern like slash command configurators
+- Template structure: YAML frontmatter + markdown body
+- Keep existing `/opsx:*` slash commands for now (manual cleanup later)
+- Skills use invocation model (user explicitly asks Claude to use them)
+- Skill `description` field guides when Claude suggests using the skill
+- Each `SKILL.md` has required fields: `name` (matches directory) and `description`
+
+---
+
+### 4. Update `/opsx:new` Command Content
+
+**Current Behavior (awf:start):**
+1. Ask user what they want to build (if no input)
+2. Create change directory
+3. Show artifact status
+4. Show what's ready
+5. Get instructions for proposal
+6. STOP and wait
+
+**New Behavior (opsx:new):**
+Same flow but with updated naming:
+- References to "awf" → "opsx"
+- References to `/awf:continue` → `/opsx:continue`
+- Update frontmatter name/description
+
+**Tasks:**
+- [x] Update all "awf" references to "opsx"
+- [x] Update command references in prompt text
+- [x] Verify CLI commands still work (they use `openspec`, not `awf`)
+
+---
+
+### 5. Update `/opsx:continue` Command Content
+
+**Current Behavior (awf:continue):**
+1. Prompt for change selection (if not provided)
+2. Check current status
+3. Create ONE artifact based on what's ready
+4. Show progress and what's unlocked
+5. STOP
+
+**New Behavior (opsx:continue):**
+Same flow with updated naming.
+
+**Tasks:**
+- [x] Update all "awf" references to "opsx"
+- [x] Update command references in prompt text
+
+---
+
+### 6. End-to-End Testing
+
+**Objective:**
+Run through a complete workflow with Claude using the new skills to create a real feature, validating the entire flow works.
+
+**Test Scenario:**
+Use a real OpenSpec feature as the test case (dog-fooding).
+
+**Test Flow:**
+1. Run `openspec artifact-experimental-setup` to create skills
+2. Verify `.claude/skills/openspec-new-change/SKILL.md` created
+3. Verify `.claude/skills/openspec-continue-change/SKILL.md` created
+4. Verify `.claude/skills/openspec-apply-change/SKILL.md` created
+5. Ask Claude: "I want to start a new OpenSpec change to add feature X"
+6. Verify Claude invokes the `openspec-new-change` skill
+7. Verify change directory created at `openspec/changes/add-feature-x/`
+8. Verify proposal template shown
+9. Ask Claude: "Continue working on this change"
+10. Verify Claude invokes the `openspec-continue-change` skill
+11. Verify `proposal.md` created with content
+12. Ask Claude: "Continue" (create specs)
+13. Verify `specs/*.md` created
+14. Ask Claude: "Continue" (create design)
+15. Verify `design.md` created
+16. Ask Claude: "Continue" (create tasks)
+17. Verify `tasks.md` created
+18. Verify status shows 4/4 complete
+19. Implement the feature based on tasks
+20. Run `/openspec:archive` to archive the change
+
+**Validation Checklist:**
+- [ ] `openspec artifact-experimental-setup` creates correct directory structure
+- [ ] Skills are auto-detected in Claude Code
+- [ ] Skill descriptions trigger appropriate invocations
+- [ ] Skills create change directory and show proposal template
+- [ ] Skills correctly identify ready artifacts
+- [ ] Skills create artifacts with meaningful content
+- [ ] Dependency detection works (specs requires proposal, etc.)
+- [ ] Progress tracking is accurate
+- [ ] Template content is useful and well-structured
+- [ ] Error handling works (invalid names, missing changes, etc.)
+- [ ] Works with different schemas (spec-driven, tdd)
+- [ ] Test in Cursor (Settings → Rules → Import Settings)
+
+**Document Results:**
+- Create test log documenting what worked and what didn't
+- Note any friction points or confusing UX
+- Identify bugs or improvements needed before user release
+
+---
+
+### 7. Documentation for Users
+
+**Create user-facing documentation explaining:**
+
+1. **What is the experimental workflow?**
+   - A new way to create OpenSpec changes step-by-step using Agent Skills
+   - One artifact at a time with dependency tracking
+   - More interactive and iterative than the batch approach
+   - Works across Claude Code, Cursor, Windsurf, and other compatible editors
+
+2. **How to set up experimental workflow**
+   ```bash
+   openspec artifact-experimental-setup
+   ```
+
+   Note: This is a temporary command that will be integrated into `openspec init` once promoted to stable.
+
+3. **Available skills**
+   - `openspec-new-change` - Start a new change with artifact workflow
+   - `openspec-continue-change` - Continue working (create next artifact)
+
+4. **How to use**
+   - **Claude Code**: Skills are auto-detected, just ask Claude naturally
+     - "I want to start a new OpenSpec change to add X"
+     - "Continue working on this change"
+   - **Cursor**: Enable in Settings → Rules → Import Settings
+   - **Windsurf**: Auto-imports `.claude` directory
+
+5. **Example workflow**
+   - Step-by-step walkthrough with natural language interactions
+   - Show how Claude invokes skills based on user requests
+
+6. **Feedback mechanism**
+   - GitHub issue template for feedback
+   - What to report (bugs, UX issues, suggestions)
+
+**Tasks:**
+- [ ] Create `docs/experimental-workflow.md` user guide
+- [ ] Add GitHub issue template for experimental feedback
+- [ ] Update README with mention of experimental features
+
+---
+
+## Dependency Graph
+
+```
+1. Remove WF skill files
+   └── (no dependencies)
+
+2. Rename AWF to OPSX
+   └── (no dependencies)
+
+3. Add Agent Skills
+   └── Depends on: Rename AWF to OPSX (uses opsx content as templates)
+
+4. Update opsx:new content
+   └── Depends on: Rename AWF to OPSX
+
+5. Update opsx:continue content
+   └── Depends on: Rename AWF to OPSX
+
+6. E2E Testing
+   └── Depends on: Add Agent Skills (tests the skills workflow)
+
+7. User Documentation
+   └── Depends on: E2E Testing (need to know final behavior)
+```
+
+---
+
+## Out of Scope
+
+The following are explicitly NOT part of this experimental release:
+
+1. **Batch mode refactor** - Making legacy `/openspec:proposal` use schemas
+2. **New schemas** - Only shipping with existing `spec-driven` and `tdd`
+3. **Schema customization UI** - No `openspec schema list` or similar
+4. **Multiple editor support in CLI** - Skills work cross-editor automatically via `.claude/skills/`
+5. **Replacing existing commands** - Skills are additive, not replacing `/openspec:*` or `/opsx:*`
+
+---
+
+## Success Criteria
+
+The experimental release is ready when:
+
+1. `openspec-new-change`, `openspec-continue-change`, and `openspec-apply-change` skills work end-to-end
+2. `openspec artifact-experimental-setup` creates skills in `.claude/skills/`
+3. Skills work in Claude Code and are compatible with Cursor/Windsurf
+4. At least one complete workflow has been tested manually
+5. User documentation exists explaining how to generate and use skills
+6. Feedback mechanism is in place
+7. WF skill files are removed
+8. No references to "awf" remain in user-facing content
+
+---
+
+## Open Questions
+
+1. **Schema selection** - Should `opsx:new` allow selecting a schema, or always use `spec-driven`?
+   - Current: Always uses `spec-driven` as default
+   - Consider: Add `--schema tdd` option or prompt
+
+2. **Namespace in CLI** - Should experimental CLI commands be namespaced?
+   - Current: `openspec status`, `openspec instructions` (no namespace)
+   - Alternative: `openspec opsx status` (explicit experimental namespace)
+   - Recommendation: Keep current, less typing for users
+
+3. **Deprecation path** - If opsx becomes the default, how do we migrate?
+   - Not needed for experimental release
+   - Document that command names may change
+
+---
+
+## Estimated Work Breakdown
+
+| Item | Complexity | Notes |
+|------|------------|-------|
+| Remove WF files | Trivial | Just delete 2 files + directory |
+| Rename AWF → OPSX | Low | File renames + content updates |
+| Add Agent Skills | **Low** | **Simple: 3-4 files, single output directory, standard format** |
+| Update opsx:new content | Low | Text replacements |
+| Update opsx:continue content | Low | Text replacements |
+| E2E Testing | Medium | Manual testing, documenting results |
+| User Documentation | Medium | New docs, issue template |
+
+**Key Improvement:** Switching to Agent Skills reduces complexity significantly:
+- **Before:** 20+ files (type definitions, 18+ editor configurators, editor selection UI)
+- **After:** 3-4 files (skill templates, simple CLI command)
+- **Cross-editor:** Works automatically in Claude Code, Cursor, Windsurf without extra code
+
+---
+
+## User Feedback from E2E Testing
+
+### What Worked Well
+
+1. **Clear dependency graph** ⭐ HIGH PRIORITY - KEEP
+   - The status command showing blocked/unblocked artifacts was intuitive:
+     ```
+     [x] proposal
+     [ ] design
+     [-] tasks (blocked by: design, specs)
+     ```
+   - Users always knew what they could work on next
+   - **Relevance**: Core UX strength to preserve
+
+2. **Structured instructions output** ⭐ HIGH PRIORITY - KEEP
+   - `openspec instructions <artifact>` gave templates, output paths, and context in one call
+   - Very helpful for understanding what to create
+   - **Relevance**: Essential for agent-driven workflow
+
+3. **Simple scaffolding** ✅ WORKS WELL
+   - `openspec new change "name"` just worked - created directory structure without fuss
+   - **Relevance**: Good baseline, room for improvement (see pain points)
+
+---
+
+### Pain Points & Confusion
+
+1. **Redundant CLI calls** ⚠️ MEDIUM PRIORITY
+   - Users called both `status` AND `next` every time, but they overlap significantly
+   - `status` already shows what's blocked
+   - **Recommendation**: Consider merging or making `next` give actionable guidance beyond just listing names
+   - **Relevance**: Reduces friction in iterative workflow
+
+2. **Specs directory structure was ambiguous** 🔥 HIGH PRIORITY - FIX
+   - Instructions said: `Write to: .../specs/**/*.md`
+   - Users had to guess: `specs/spec.md`? `specs/game/spec.md`? `specs/tic-tac-toe/spec.md`?
+   - Users ended up doing manual `mkdir -p .../specs/tic-tac-toe` then writing `spec.md` inside
+   - **Recommendation**: CLI should scaffold this directory structure automatically
+   - **Relevance**: Critical agent UX - ambiguous paths cause workflow friction
+
+3. **Repetitive --change flag** ⚠️ MEDIUM PRIORITY
+   - Every command needed `--change "tic-tac-toe-game"`
+   - After 10+ calls, this felt verbose
+   - **Recommendation**: `openspec use "tic-tac-toe-game"` to set context, then subsequent commands assume that change
+   - **Relevance**: Quality of life improvement for iterative sessions
+
+4. **No validation feedback** 🔥 HIGH PRIORITY - ADD
+   - After writing each artifact, users just ran `status` hoping it would show `[x]`
+   - Questions raised:
+     - How did it know the artifact was "done"? File existence?
+     - What if spec format was wrong (e.g., wrong heading levels)?
+   - **Recommendation**: Add `openspec validate --change "name"` to check content quality
+   - **Relevance**: Critical for user confidence and catching errors early
+
+5. **Query-heavy, action-light CLI** 🔥 HIGH PRIORITY - ENHANCE
+   - Most commands retrieve info. The only "action" is `new change`
+   - Artifact creation is manual Write to guessed paths
+   - **Recommendation**: `openspec create proposal --change "name"` could scaffold the file with template pre-filled, then user just edits
+   - **Relevance**: Directly impacts agent productivity - reduce manual file writing
+
+6. **Instructions output was verbose** ⚠️ LOW PRIORITY
+   - XML-style output (`<artifact>`, `<template>`, `<instruction>`) was parseable but long
+   - Key info (output path, template) was buried in ~50 lines
+   - **Recommendation**: Add compact mode or structured JSON output for agents
+   - **Relevance**: Nice-to-have for agent parsing efficiency
+
+---
+
+### Workflow Friction
+
+1. **Mandatory "STOP and wait" after showing proposal template** ⚠️ MEDIUM PRIORITY
+   - The skill said "STOP and wait" after showing the proposal template
+   - This felt overly cautious when user had already provided enough context (e.g., "tic tac toe, single player vs AI, minimal aesthetics")
+   - **Recommendation**: Make the pause optional or conditional based on context clarity
+   - **Relevance**: Reduces unnecessary round-trips in agent conversations
+
+2. **No connection to implementation** 🔥 HIGH PRIORITY - ROADMAP ITEM
+   - After 4/4 artifacts complete, then what? The workflow ends at planning
+   - No `openspec apply` or guidance on how to execute the tasks
+   - User asked "would you like me to implement?" but that's outside OpenSpec's scope currently
+   - **Recommendation**: Add implementation bridge - either:
+     - `openspec apply` command to start execution phase
+     - Clear handoff to existing `/openspec:apply` workflow
+     - Documentation on next steps after planning completes
+   - **Relevance**: Critical missing piece - users expect end-to-end workflow
+
+---
+
+### Priority Summary
+
+**MUST FIX (High Priority):**
+1. Specs directory structure ambiguity (#2)
+2. Add validation feedback (#4)
+3. Make CLI more action-oriented (#5)
+4. Bridge to implementation phase (#2 in Workflow Friction)
+5. Keep clear dependency graph (#1 in What Worked)
+6. Keep structured instructions (#2 in What Worked)
+
+**SHOULD FIX (Medium Priority):**
+1. Reduce redundant CLI calls (#1)
+2. Repetitive `--change` flag (#3)
+3. Mandatory STOP behavior (#1 in Workflow Friction)
+
+**NICE TO HAVE (Low Priority):**
+1. Compact instructions output mode (#6)
+
+---
+
+## Design Decisions (from E2E Testing Feedback)
+
+Based on dev testing and analysis of agent workflow friction, we identified three blockers for experimental release and made the following decisions.
+
+### Blockers Identified
+
+From the pain points in E2E testing, three issues are blocking the experimental release:
+
+1. **Specs directory ambiguity** - Agents don't know where to write spec files or how to name capabilities
+2. **CLI is query-heavy** - Most commands retrieve info, artifact creation is manual
+3. **Apply integration missing** - After 4/4 artifacts complete, no guidance on implementation phase
+
+### Decision 1: Capability Discovery in Proposal (RESOLVED)
+
+**Problem:** The specs artifact instruction says "Create one spec file per capability in `specs/<name>/spec.md`" but:
+- Agent doesn't know what `<name>` should be
+- Capability identification requires research (existing specs, codebase)
+- Proposal template asks for "Affected specs" but doesn't structure it
+- Research happens implicitly, output isn't captured
+
+**Decision:** Enrich the proposal template to explicitly capture capability discovery.
+
+**Current proposal template:**
+```markdown
+## Why
+## What Changes
+## Impact
+- Affected specs: List capabilities...  ← vague, easy to skip
+- Affected code: ...
+```
+
+**New proposal template:**
+```markdown
+## Why
+## What Changes
+## Capabilities
+
+### New Capabilities
+<!-- Capabilities being introduced (will create new specs/<name>/spec.md) -->
+- `<name>`: <brief description of what this capability covers>
+
+### Modified Capabilities
+<!-- Existing capabilities being changed (will update existing specs) -->
+- `<existing-name>`: <what's changing>
+
+## Impact
+<!-- Affected code, APIs, dependencies, systems -->
+```
+
+**Rationale:**
+- Proposal already asks for capabilities (just poorly) - this makes it explicit
+- Captured output is reviewable (vs implicit research that can't be verified)
+- Creates clear contract between proposal and specs phases
+- Distinguishes NEW vs MODIFIED upfront (critical for specs phase)
+- Agent can't skip research - it's part of the deliverable
+
+**Implementation:**
+- Update `schemas/spec-driven/templates/proposal.md`
+- Update proposal instruction in `schemas/spec-driven/schema.yaml`
+- Update skill instructions to guide capability discovery
+
+### Decision 2: CLI Action Commands (IN PROGRESS)
+
+**Problem:** CLI is mostly query-oriented. Agents run `openspec status`, `openspec next`, `openspec instructions` but then must manually write files.
+
+#### Decision 2a: Remove `openspec next` command (RESOLVED)
+
+**Problem:** The `next` command is redundant. It only shows which artifacts are ready, but `status` already shows this information (artifacts with status "ready" vs "blocked" vs "done").
+
+**Current behavior:**
+```bash
+openspec status --change "X"  # Shows: proposal (done), specs (ready), design (blocked), tasks (blocked)
+openspec next --change "X"    # Shows: ["specs"]  ← redundant
+```
+
+**Decision:** Remove the `next` command. Agents should use `status` which provides the same info plus more context.
+
+**Implementation:**
+- Remove `next` command from CLI
+- Update skill instructions to use `status` instead of `next`
+- Update AGENTS.md references
+
+#### Decision 2b: CLI Scaffolding (RESOLVED - NO)
+
+**Problem:** After getting instructions, agents manually write files. Should CLI scaffold artifacts instead?
+
+**Options considered:**
+- Add `openspec create <artifact>` commands that scaffold files with templates
+- Keep current approach where agent writes files directly from instructions
+- Hybrid: CLI can scaffold, agent can also write directly
+
+**Decision:** Keep current flow. No scaffolding commands.
+
+**Rationale (from agent ergonomics perspective):**
+- One Write is better than multiple Edits - agent composes full content atomically
+- `instructions` already provides template in context - scaffolding just moves it to a file
+- Fewer tool calls: `instructions` + Write (2) vs `create` + `instructions` + Read + Edit×N (4+)
+- Scaffolding doesn't solve the real problem (not knowing WHAT to write)
+- Real problem solved by proposal template change (capability discovery)
+
+**For multi-file artifacts (specs):** Scaffolding can't help because CLI doesn't know capability names until proposal is complete. The capability discovery in proposal solves this.
+
+### Decision 3: Apply Integration (RESOLVED)
+
+**Original problem:** After planning completes (4/4 artifacts), the experimental workflow ends. No guidance on implementation.
+
+**Key insight: No phases, just actions.**
+
+Through discussion, we realized phases (planning → implementation → archive) are an artificial constraint. Work is fluid:
+- You might start implementing, realize the design is wrong → update design.md
+- You're halfway through tasks, discover a new requirement → update specs
+- You bounce between "planning" and "implementing" constantly
+
+**The better model: Actions on a Change**
+
+A change is a thing (with artifacts). Actions are verbs you perform on a change. Actions aren't phases - they're fluid operations you can perform anytime.
+
+| Action | What it does | Skill | CLI Command |
+|--------|--------------|-------|-------------|
+| `new` | Create a change (scaffold directory) | `opsx:new` | `openspec new change` |
+| `continue` | Create next artifact (dependency-aware) | `opsx:continue` | `openspec instructions` |
+| `apply` | Implement tasks (execute, check off) | `opsx:apply` (NEW) | TBD |
+| `update` | Refresh/update artifacts based on learnings | `opsx:update` (NEW) | TBD |
+| `explore` | Research, ask questions, understand | `opsx:explore` (NEW) | TBD |
+| `validate` | Check artifacts are correct/complete | TBD | `openspec validate` |
+| `archive` | Finalize and move to archive | existing | `openspec archive` |
+
+**Key principles:**
+- Actions are modeled as skills (primary interface for agents)
+- Some skills have matching CLI commands for convenience
+- Skills and CLI commands are decoupled - not everything needs both
+- Actions can be performed in any order (with soft prerequisites)
+- No linear phase gates
+
+**What the schema defines:**
+- Artifacts (what they are, where they go)
+- Dependencies (what must exist first)
+- Required vs optional
+- Templates + instructions
+
+**What the schema does NOT define:**
+- Phases
+- When you can modify things
+- Linear workflow
+
+**Progress tracking:**
+- tasks.md checkboxes = implementation progress
+- Artifact existence = planning progress
+- Archive readiness = user decides (or all tasks done)
+
+**For experimental release:**
+- Create `opsx:apply` skill (guidance for implementing tasks)
+- Document the "actions on a change" model
+- Other actions (update, explore) can come later
+
+---
+
+### Design: `openspec-apply-change` Skill
+
+#### Overview
+
+The apply skill guides agents through implementing tasks from a completed (or in-progress) change. Unlike the old `/openspec:apply` command, this skill:
+- Is **fluid** - can be invoked anytime, not just after all artifacts are done
+- Allows **artifact updates** - if implementation reveals issues, update design/specs
+- Works **until done** - keeps going through tasks until complete or blocked
+- Tracks **progress via checkboxes** - tasks.md is the source of truth
+
+#### Skill Metadata
+
+```yaml
+name: openspec-apply-change
+description: Implement tasks from an OpenSpec change. Use when the user wants to start implementing, continue implementation, or work through tasks.
+```
+
+#### When to Invoke
+
+The skill should be invoked when:
+- User says "implement this change" or "start implementing"
+- User says "work on the tasks" or "do the next task"
+- User says "apply this change"
+- All artifacts are complete and user wants to proceed
+- User wants to continue implementation after a break
+
+#### Input
+
+- Optionally: change name
+- Optionally: specific task number to work on
+- If omitted: prompt for change selection (same pattern as continue-change)
+
+#### Steps
+
+```markdown
+**Steps**
+
+1. **If no change name provided, prompt for selection**
+
+   Run `openspec list --json` to get available changes. Use **AskUserQuestion** to let user select.
+
+   Show changes that have tasks.md (implementation-ready).
+   Mark changes with incomplete tasks as "(In Progress)".
+
+2. **Get apply instructions**
+
+   ```bash
+   openspec instructions apply --change "<name>" --json
+   ```
+
+   This returns:
+   - Context file paths (proposal, specs, design, tasks)
+   - Progress (total, complete, remaining)
+   - Task list with status
+   - Dynamic instruction based on current state
+
+   **Handle states:**
+   - If blocked (missing artifacts): show message, suggest `openspec-continue-change`
+   - If all done: congratulate, suggest archive
+   - Otherwise: proceed to implementation
+
+3. **Read context files**
+
+   Read the files listed in the instructions:
+   - `proposal.md` - why and what
+   - `specs/*.md` - requirements and scenarios
+   - `design.md` - technical approach (if exists)
+   - `tasks.md` - the implementation checklist
+
+4. **Show current progress**
+
+   Display:
+   - Progress: "N/M tasks complete"
+   - Remaining tasks overview
+   - Dynamic instruction from CLI
+
+5. **Implement tasks (loop until done or blocked)**
+
+   For each pending task:
+   - Show which task is being worked on
+   - Make the code changes required
+   - Keep changes minimal and focused
+   - Mark task complete in tasks.md: `- [ ]` → `- [x]`
+   - Continue to next task
+
+   **Pause if:**
+   - Task is unclear → ask for clarification
+   - Implementation reveals a design issue → suggest updating artifacts
+   - Error or blocker encountered → report and wait for guidance
+   - User interrupts
+
+6. **On completion or pause, show status**
+
+   Display:
+   - Tasks completed this session
+   - Overall progress: "N/M tasks complete"
+   - If all done: suggest archive
+   - If paused: explain why and wait for guidance
+```
+
+#### Output Format
+
+**During implementation:**
+```
+## Implementing: add-user-auth
+
+Working on task 3/7: Create UserAuth service class
+[...implementation happening...]
+✓ Task complete
+
+Working on task 4/7: Add login endpoint to AuthController
+[...implementation happening...]
+✓ Task complete
+
+Working on task 5/7: Add JWT token generation
+[...implementation happening...]
+```
+
+**On completion:**
+```
+## Implementation Complete
+
+**Change:** add-user-auth
+**Progress:** 7/7 tasks complete ✓
+
+### Completed This Session
+- [x] Create UserAuth service class
+- [x] Add login endpoint to AuthController
+- [x] Add JWT token generation
+- [x] Add logout endpoint
+- [x] Add auth middleware
+- [x] Write unit tests
+- [x] Update API documentation
+
+All tasks complete! Ready to archive this change.
+```
+
+**On pause (issue encountered):**
+```
+## Implementation Paused
+
+**Change:** add-user-auth
+**Progress:** 4/7 tasks complete
+
+### Issue Encountered
+Task 5 "Add JWT token generation" - the design specifies using RS256 but
+the existing auth library only supports HS256.
+
+**Options:**
+1. Update design.md to use HS256 instead
+2. Add a new JWT library that supports RS256
+3. Other approach
+
+What would you like to do?
+```
+
+#### Guardrails
+
+- Keep going through tasks until done or blocked
+- Always read context before starting (specs, design)
+- If task is ambiguous, pause and ask before implementing
+- If implementation reveals issues, pause and suggest artifact updates
+- Keep code changes minimal and scoped to each task
+- Update task checkbox immediately after completing each task
+- Pause on errors, blockers, or unclear requirements - don't guess
+
+#### Fluid Workflow Integration
+
+The apply skill supports the "actions on a change" model:
+
+**Can be invoked anytime:**
+- Before all artifacts are done (if tasks.md exists)
+- After partial implementation
+- Interleaved with other actions (update, continue)
+
+**Allows artifact updates:**
+- If implementation reveals design issues → suggest `opsx:update` or manual edit
+- If requirements need clarification → suggest updating specs
+- Not phase-locked - work fluidly
+
+**Example fluid workflow:**
+```
+User: "Implement add-user-auth"
+→ openspec-apply-change: implements tasks 1, 2, 3, 4...
+→ Pauses at task 5: "Design says RS256 but library only supports HS256"
+
+User: "Let's use HS256 instead, update the design"
+→ User edits design.md (or uses opsx:update in future)
+
+User: "Continue implementing"
+→ openspec-apply-change: implements tasks 5, 6, 7
+→ "All tasks complete! Ready to archive."
+```
+
+#### CLI Commands Used
+
+```bash
+openspec list --json                        # List changes for selection
+openspec status --change "<name>"           # Check artifact completion
+openspec instructions apply --change "<name>" # Get apply instructions (NEW)
+# File reads via Read tool for proposal, specs, design, tasks
+# File edits via Edit tool for checking off tasks
+```
+
+#### New CLI Command: `openspec instructions apply`
+
+For consistency with artifact instructions.
+
+**Usage:**
+```bash
+openspec instructions apply --change "<name>" [--json]
+```
+
+**Output (Markdown format):**
+```markdown
+## Apply: add-user-auth
+
+### Context Files
+- proposal: openspec/changes/add-user-auth/proposal.md
+- specs: openspec/changes/add-user-auth/specs/**/*.md
+- design: openspec/changes/add-user-auth/design.md
+- tasks: openspec/changes/add-user-auth/tasks.md
+
+### Progress
+2/7 complete
+
+### Tasks
+- [x] Create UserAuth service class
+- [x] Add login endpoint
+- [ ] Add JWT token generation
+- [ ] Add logout endpoint
+- [ ] Add auth middleware
+- [ ] Write unit tests
+- [ ] Update API documentation
+
+### Instruction
+Read context files, work through pending tasks, mark complete as you go.
+Pause if you hit blockers or need clarification.
+```
+
+**Benefits of CLI command:**
+- **Consistency** - same pattern as `openspec instructions <artifact>`
+- **Structured output** - progress, tasks, context paths in one call
+- **Clean format** - markdown is readable and compact (vs verbose XML)
+- **Extensibility** - can add more sections later if needed
+- **JSON option** - `--json` flag available for programmatic use
+
+#### Differences from Old `/openspec:apply`
+
+| Aspect | Old `/openspec:apply` | New `openspec-apply-change` |
+|--------|----------------------|----------------------------|
+| Invocation | After all artifacts done | Anytime (if tasks.md exists) |
+| Granularity | All tasks at once | All tasks, but pauses on issues |
+| Artifact updates | Not mentioned | Encouraged when needed |
+| Progress tracking | Update all at end | Update after each task |
+| Flow control | Push through everything | Pause on blockers, resume after |
+| Context loading | Read once at start | Read context, reference as needed |
+| Issue handling | Not specified | Pause, present options, wait for guidance |
+
+#### Implementation Notes
+
+1. **Add CLI command**: Add `openspec instructions apply` to artifact-workflow.ts
+   - Parse tasks.md for progress (count done/pending)
+   - Return context paths, progress, task list, simple instruction
+2. **Add to skill-templates.ts**: Create `getApplyChangeSkillTemplate()` function
+3. **Update artifact-experimental-setup**: Generate this skill alongside new/continue
+4. **Update skills list**: Add to `.claude/skills/` directory
+5. **Test the flow**: Verify it works with existing changes that have tasks.md
+
+---
+
+## Next Steps
+
+1. ~~Review this plan and confirm scope~~ (Done - blockers identified)
+2. ~~Design decisions~~ (Done - all 3 blockers resolved)
+3. ~~Design apply skill~~ (Done - documented above)
+4. ~~Implement proposal template change (Decision 1 - capability discovery)~~ (Done)
+5. ~~Remove `openspec next` command (Decision 2a)~~ (Done)
+6. ~~Add `openspec instructions apply` CLI command~~ (Done)
+7. ~~Create `openspec-apply-change` skill~~ (Done)
+8. Conduct E2E testing with updated workflow
+9. Write user docs (document "actions on a change" model)
+10. Release to test users

docs/experimental-workflow.md

@@ -0,0 +1,665 @@
+# Experimental Workflow (OPSX)
+
+> **Status:** Experimental. Things might break. Feedback welcome on [Discord](https://discord.gg/BYjPaKbqMt).
+>
+> **Compatibility:** Claude Code only (for now)
+
+## What Is It?
+
+OPSX is a **fluid, iterative workflow** for OpenSpec changes. No more rigid phases — just actions you can take anytime.
+
+## Why This Exists
+
+The standard OpenSpec workflow works, but it's **locked down**:
+
+- **Instructions are hardcoded** — buried in TypeScript, you can't change them
+- **All-or-nothing** — one big command creates everything, can't test individual pieces
+- **Fixed structure** — same workflow for everyone, no customization
+- **Black box** — when AI output is bad, you can't tweak the prompts
+
+**OPSX opens it up.** Now anyone can:
+
+1. **Experiment with instructions** — edit a template, see if the AI does better
+2. **Test granularly** — validate each artifact's instructions independently
+3. **Customize workflows** — define your own artifacts and dependencies
+4. **Iterate quickly** — change a template, test immediately, no rebuild
+
+```
+Standard workflow:                    OPSX:
+┌────────────────────────┐           ┌────────────────────────┐
+│  Hardcoded in package  │           │  schema.yaml           │◄── You edit this
+│  (can't change)        │           │  templates/*.md        │◄── Or this
+│        ↓               │           │        ↓               │
+│  Wait for new release  │           │  Instant effect        │
+│        ↓               │           │        ↓               │
+│  Hope it's better      │           │  Test it yourself      │
+└────────────────────────┘           └────────────────────────┘
+```
+
+**This is for everyone:**
+- **Teams** — create workflows that match how you actually work
+- **Power users** — tweak prompts to get better AI outputs for your codebase
+- **OpenSpec contributors** — experiment with new approaches without releases
+
+We're all still learning what works best. OPSX lets us learn together.
+
+## The User Experience
+
+**The problem with linear workflows:**
+You're "in planning phase", then "in implementation phase", then "done". But real work doesn't work that way. You implement something, realize your design was wrong, need to update specs, continue implementing. Linear phases fight against how work actually happens.
+
+**OPSX approach:**
+- **Actions, not phases** — create, implement, update, archive — do any of them anytime
+- **Dependencies are enablers** — they show what's possible, not what's required next
+- **Update as you learn** — halfway through implementation? Go back and fix the design. That's normal.
+
+```
+You can always go back:
+
+     ┌────────────────────────────────────┐
+     │                                    │
+     ▼                                    │
+  proposal ──→ specs ──→ design ──→ tasks ──→ implement
+     ▲           ▲          ▲               │
+     │           │          │               │
+     └───────────┴──────────┴───────────────┘
+              update as you learn
+```
+
+## Setup
+
+```bash
+# 1. Make sure you have openspec installed and initialized
+openspec init
+
+# 2. Generate the experimental skills
+openspec artifact-experimental-setup
+```
+
+This creates skills in `.claude/skills/` that Claude Code auto-detects.
+
+During setup, you'll be prompted to create a **project config** (`openspec/config.yaml`). This is optional but recommended.
+
+## Project Configuration
+
+Project config lets you set defaults and inject project-specific context into all artifacts.
+
+### Creating Config
+
+Config is created during `artifact-experimental-setup`, or manually:
+
+```yaml
+# openspec/config.yaml
+schema: spec-driven
+
+context: |
+  Tech stack: TypeScript, React, Node.js
+  API conventions: RESTful, JSON responses
+  Testing: Vitest for unit tests, Playwright for e2e
+  Style: ESLint with Prettier, strict TypeScript
+
+rules:
+  proposal:
+    - Include rollback plan
+    - Identify affected teams
+  specs:
+    - Use Given/When/Then format for scenarios
+  design:
+    - Include sequence diagrams for complex flows
+```
+
+### Config Fields
+
+| Field | Type | Description |
+|-------|------|-------------|
+| `schema` | string | Default schema for new changes (e.g., `spec-driven`, `tdd`) |
+| `context` | string | Project context injected into all artifact instructions |
+| `rules` | object | Per-artifact rules, keyed by artifact ID |
+
+### How It Works
+
+**Schema precedence** (highest to lowest):
+1. CLI flag (`--schema tdd`)
+2. Change metadata (`.openspec.yaml` in change directory)
+3. Project config (`openspec/config.yaml`)
+4. Default (`spec-driven`)
+
+**Context injection:**
+- Context is prepended to every artifact's instructions
+- Wrapped in `<context>...</context>` tags
+- Helps AI understand your project's conventions
+
+**Rules injection:**
+- Rules are only injected for matching artifacts
+- Wrapped in `<rules>...</rules>` tags
+- Appear after context, before the template
+
+### Artifact IDs by Schema
+
+**spec-driven** (default):
+- `proposal` — Change proposal
+- `specs` — Specifications
+- `design` — Technical design
+- `tasks` — Implementation tasks
+
+**tdd**:
+- `spec` — Feature specification
+- `tests` — Test file
+- `implementation` — Implementation code
+- `docs` — Documentation
+
+### Config Validation
+
+- Unknown artifact IDs in `rules` generate warnings
+- Schema names are validated against available schemas
+- Context has a 50KB size limit
+- Invalid YAML is reported with line numbers
+
+### Troubleshooting
+
+**"Unknown artifact ID in rules: X"**
+- Check artifact IDs match your schema (see list above)
+- Run `openspec schemas --json` to see artifact IDs for each schema
+
+**Config not being applied:**
+- Ensure file is at `openspec/config.yaml` (not `.yml`)
+- Check YAML syntax with a validator
+- Config changes take effect immediately (no restart needed)
+
+**Context too large:**
+- Context is limited to 50KB
+- Summarize or link to external docs instead
+
+## Commands
+
+| Command | What it does |
+|---------|--------------|
+| `/opsx:explore` | Think through ideas, investigate problems, clarify requirements |
+| `/opsx:new` | Start a new change |
+| `/opsx:continue` | Create the next artifact (based on what's ready) |
+| `/opsx:ff` | Fast-forward — create all planning artifacts at once |
+| `/opsx:apply` | Implement tasks, updating artifacts as needed |
+| `/opsx:sync` | Sync delta specs to main specs |
+| `/opsx:archive` | Archive when done |
+
+## Usage
+
+### Explore an idea
+```
+/opsx:explore
+```
+Think through ideas, investigate problems, compare options. No structure required - just a thinking partner. When insights crystallize, transition to `/opsx:new` or `/opsx:ff`.
+
+### Start a new change
+```
+/opsx:new
+```
+You'll be asked what you want to build and which workflow schema to use.
+
+### Create artifacts
+```
+/opsx:continue
+```
+Shows what's ready to create based on dependencies, then creates one artifact. Use repeatedly to build up your change incrementally.
+
+```
+/opsx:ff add-dark-mode
+```
+Creates all planning artifacts at once. Use when you have a clear picture of what you're building.
+
+### Implement (the fluid part)
+```
+/opsx:apply
+```
+Works through tasks, checking them off as you go. **Key difference:** if you discover issues during implementation, you can update your specs, design, or tasks — then continue. No phase gates. If you're juggling multiple changes, you can run `/opsx:apply <name>`; otherwise it should infer from the conversation and prompt you to choose if it can’t tell.
+
+### Finish up
+```
+/opsx:sync      # Update main specs with your delta specs
+/opsx:archive   # Move to archive when done
+```
+
+## When to Update vs. Start Fresh
+
+OPSX lets you update artifacts anytime. But when does "update as you learn" become "this is different work"?
+
+### What a Proposal Captures
+
+A proposal defines three things:
+1. **Intent** — What problem are you solving?
+2. **Scope** — What's in/out of bounds?
+3. **Approach** — How will you solve it?
+
+The question is: which changed, and by how much?
+
+### Update the Existing Change When:
+
+**Same intent, refined execution**
+- You discover edge cases you didn't consider
+- The approach needs tweaking but the goal is unchanged
+- Implementation reveals the design was slightly off
+
+**Scope narrows**
+- You realize full scope is too big, want to ship MVP first
+- "Add dark mode" → "Add dark mode toggle (system preference in v2)"
+
+**Learning-driven corrections**
+- Codebase isn't structured how you thought
+- A dependency doesn't work as expected
+- "Use CSS variables" → "Use Tailwind's dark: prefix instead"
+
+### Start a New Change When:
+
+**Intent fundamentally changed**
+- The problem itself is different now
+- "Add dark mode" → "Add comprehensive theme system with custom colors, fonts, spacing"
+
+**Scope exploded**
+- Change grew so much it's essentially different work
+- Original proposal would be unrecognizable after updates
+- "Fix login bug" → "Rewrite auth system"
+
+**Original is completable**
+- The original change can be marked "done"
+- New work stands alone, not a refinement
+- Complete "Add dark mode MVP" → Archive → New change "Enhance dark mode"
+
+### The Heuristics
+
+```
+                        ┌─────────────────────────────────────┐
+                        │     Is this the same work?          │
+                        └──────────────┬──────────────────────┘
+                                       │
+                    ┌──────────────────┼──────────────────┐
+                    │                  │                  │
+                    ▼                  ▼                  ▼
+             Same intent?      >50% overlap?      Can original
+             Same problem?     Same scope?        be "done" without
+                    │                  │          these changes?
+                    │                  │                  │
+          ┌────────┴────────┐  ┌──────┴──────┐   ┌───────┴───────┐
+          │                 │  │             │   │               │
+         YES               NO YES           NO  NO              YES
+          │                 │  │             │   │               │
+          ▼                 ▼  ▼             ▼   ▼               ▼
+       UPDATE            NEW  UPDATE       NEW  UPDATE          NEW
+```
+
+| Test | Update | New Change |
+|------|--------|------------|
+| **Identity** | "Same thing, refined" | "Different work" |
+| **Scope overlap** | >50% overlaps | <50% overlaps |
+| **Completion** | Can't be "done" without changes | Can finish original, new work stands alone |
+| **Story** | Update chain tells coherent story | Patches would confuse more than clarify |
+
+### The Principle
+
+> **Update preserves context. New change provides clarity.**
+>
+> Choose update when the history of your thinking is valuable.
+> Choose new when starting fresh would be clearer than patching.
+
+Think of it like git branches:
+- Keep committing while working on the same feature
+- Start a new branch when it's genuinely new work
+- Sometimes merge a partial feature and start fresh for phase 2
+
+## What's Different?
+
+| | Standard (`/openspec:proposal`) | Experimental (`/opsx:*`) |
+|---|---|---|
+| **Structure** | One big proposal document | Discrete artifacts with dependencies |
+| **Workflow** | Linear phases: plan → implement → archive | Fluid actions — do anything anytime |
+| **Iteration** | Awkward to go back | Update artifacts as you learn |
+| **Customization** | Fixed structure | Schema-driven (define your own artifacts) |
+
+**The key insight:** work isn't linear. OPSX stops pretending it is.
+
+## Architecture Deep Dive
+
+This section explains how OPSX works under the hood and how it compares to the standard workflow.
+
+### Philosophy: Phases vs Actions
+
+```
+┌─────────────────────────────────────────────────────────────────────────────┐
+│                         STANDARD WORKFLOW                                    │
+│                    (Phase-Locked, All-or-Nothing)                           │
+├─────────────────────────────────────────────────────────────────────────────┤
+│                                                                             │
+│   ┌──────────────┐      ┌──────────────┐      ┌──────────────┐             │
+│   │   PLANNING   │ ───► │ IMPLEMENTING │ ───► │   ARCHIVING  │             │
+│   │    PHASE     │      │    PHASE     │      │    PHASE     │             │
+│   └──────────────┘      └──────────────┘      └──────────────┘             │
+│         │                     │                     │                       │
+│         ▼                     ▼                     ▼                       │
+│   /openspec:proposal   /openspec:apply      /openspec:archive              │
+│                                                                             │
+│   • Creates ALL artifacts at once                                          │
+│   • Can't go back to update specs during implementation                    │
+│   • Phase gates enforce linear progression                                  │
+│                                                                             │
+└─────────────────────────────────────────────────────────────────────────────┘
+
+
+┌─────────────────────────────────────────────────────────────────────────────┐
+│                            OPSX WORKFLOW                                     │
+│                      (Fluid Actions, Iterative)                             │
+├─────────────────────────────────────────────────────────────────────────────┤
+│                                                                             │
+│              ┌────────────────────────────────────────────┐                 │
+│              │           ACTIONS (not phases)             │                 │
+│              │                                            │                 │
+│              │   new ◄──► continue ◄──► apply ◄──► sync   │                 │
+│              │    │          │           │          │     │                 │
+│              │    └──────────┴───────────┴──────────┘     │                 │
+│              │              any order                     │                 │
+│              └────────────────────────────────────────────┘                 │
+│                                                                             │
+│   • Create artifacts one at a time OR fast-forward                         │
+│   • Update specs/design/tasks during implementation                        │
+│   • Dependencies enable progress, phases don't exist                       │
+│                                                                             │
+└─────────────────────────────────────────────────────────────────────────────┘
+```
+
+### Component Architecture
+
+**Standard workflow** uses hardcoded templates in TypeScript:
+
+```
+┌─────────────────────────────────────────────────────────────────────────────┐
+│                      STANDARD WORKFLOW COMPONENTS                            │
+├─────────────────────────────────────────────────────────────────────────────┤
+│                                                                             │
+│   Hardcoded Templates (TypeScript strings)                                  │
+│                    │                                                        │
+│                    ▼                                                        │
+│   Configurators (18+ classes, one per editor)                               │
+│                    │                                                        │
+│                    ▼                                                        │
+│   Generated Command Files (.claude/commands/openspec/*.md)                  │
+│                                                                             │
+│   • Fixed structure, no artifact awareness                                  │
+│   • Change requires code modification + rebuild                             │
+│                                                                             │
+└─────────────────────────────────────────────────────────────────────────────┘
+```
+
+**OPSX** uses external schemas and a dependency graph engine:
+
+```
+┌─────────────────────────────────────────────────────────────────────────────┐
+│                         OPSX COMPONENTS                                      │
+├─────────────────────────────────────────────────────────────────────────────┤
+│                                                                             │
+│   Schema Definitions (YAML)                                                 │
+│   ┌─────────────────────────────────────────────────────────────────────┐   │
+│   │  name: spec-driven                                                  │   │
+│   │  artifacts:                                                         │   │
+│   │    - id: proposal                                                   │   │
+│   │      generates: proposal.md                                         │   │
+│   │      requires: []              ◄── Dependencies                     │   │
+│   │    - id: specs                                                      │   │
+│   │      generates: specs/**/*.md  ◄── Glob patterns                    │   │
+│   │      requires: [proposal]      ◄── Enables after proposal           │   │
+│   └─────────────────────────────────────────────────────────────────────┘   │
+│                    │                                                        │
+│                    ▼                                                        │
+│   Artifact Graph Engine                                                     │
+│   ┌─────────────────────────────────────────────────────────────────────┐   │
+│   │  • Topological sort (dependency ordering)                           │   │
+│   │  • State detection (filesystem existence)                           │   │
+│   │  • Rich instruction generation (templates + context)                │   │
+│   └─────────────────────────────────────────────────────────────────────┘   │
+│                    │                                                        │
+│                    ▼                                                        │
+│   Skill Files (.claude/skills/openspec-*/SKILL.md)                          │
+│                                                                             │
+│   • Cross-editor compatible (Claude Code, Cursor, Windsurf)                 │
+│   • Skills query CLI for structured data                                    │
+│   • Fully customizable via schema files                                     │
+│                                                                             │
+└─────────────────────────────────────────────────────────────────────────────┘
+```
+
+### Dependency Graph Model
+
+Artifacts form a directed acyclic graph (DAG). Dependencies are **enablers**, not gates:
+
+```
+                              proposal
+                             (root node)
+                                  │
+                    ┌─────────────┴─────────────┐
+                    │                           │
+                    ▼                           ▼
+                 specs                       design
+              (requires:                  (requires:
+               proposal)                   proposal)
+                    │                           │
+                    └─────────────┬─────────────┘
+                                  │
+                                  ▼
+                               tasks
+                           (requires:
+                           specs, design)
+                                  │
+                                  ▼
+                          ┌──────────────┐
+                          │ APPLY PHASE  │
+                          │ (requires:   │
+                          │  tasks)      │
+                          └──────────────┘
+```
+
+**State transitions:**
+
+```
+   BLOCKED ────────────────► READY ────────────────► DONE
+      │                        │                       │
+   Missing                  All deps               File exists
+   dependencies             are DONE               on filesystem
+```
+
+### Information Flow
+
+**Standard workflow** — agent receives static instructions:
+
+```
+  User: "/openspec:proposal"
+           │
+           ▼
+  ┌─────────────────────────────────────────┐
+  │  Static instructions:                   │
+  │  • Create proposal.md                   │
+  │  • Create tasks.md                      │
+  │  • Create design.md                     │
+  │  • Create specs/*.md                    │
+  │                                         │
+  │  No awareness of what exists or         │
+  │  dependencies between artifacts         │
+  └─────────────────────────────────────────┘
+           │
+           ▼
+  Agent creates ALL artifacts in one go
+```
+
+**OPSX** — agent queries for rich context:
+
+```
+  User: "/opsx:continue"
+           │
+           ▼
+  ┌──────────────────────────────────────────────────────────────────────────┐
+  │  Step 1: Query current state                                             │
+  │  ┌────────────────────────────────────────────────────────────────────┐  │
+  │  │  $ openspec status --change "add-auth" --json                      │  │
+  │  │                                                                    │  │
+  │  │  {                                                                 │  │
+  │  │    "artifacts": [                                                  │  │
+  │  │      {"id": "proposal", "status": "done"},                         │  │
+  │  │      {"id": "specs", "status": "ready"},      ◄── First ready      │  │
+  │  │      {"id": "design", "status": "ready"},                          │  │
+  │  │      {"id": "tasks", "status": "blocked", "missingDeps": ["specs"]}│  │
+  │  │    ]                                                               │  │
+  │  │  }                                                                 │  │
+  │  └────────────────────────────────────────────────────────────────────┘  │
+  │                                                                          │
+  │  Step 2: Get rich instructions for ready artifact                        │
+  │  ┌────────────────────────────────────────────────────────────────────┐  │
+  │  │  $ openspec instructions specs --change "add-auth" --json          │  │
+  │  │                                                                    │  │
+  │  │  {                                                                 │  │
+  │  │    "template": "# Specification\n\n## ADDED Requirements...",      │  │
+  │  │    "dependencies": [{"id": "proposal", "path": "...", "done": true}│  │
+  │  │    "unlocks": ["tasks"]                                            │  │
+  │  │  }                                                                 │  │
+  │  └────────────────────────────────────────────────────────────────────┘  │
+  │                                                                          │
+  │  Step 3: Read dependencies → Create ONE artifact → Show what's unlocked  │
+  └──────────────────────────────────────────────────────────────────────────┘
+```
+
+### Iteration Model
+
+**Standard workflow** — awkward to iterate:
+
+```
+  ┌─────────┐     ┌─────────┐     ┌─────────┐
+  │/proposal│ ──► │ /apply  │ ──► │/archive │
+  └─────────┘     └─────────┘     └─────────┘
+       │               │
+       │               ├── "Wait, the design is wrong"
+       │               │
+       │               ├── Options:
+       │               │   • Edit files manually (breaks context)
+       │               │   • Abandon and start over
+       │               │   • Push through and fix later
+       │               │
+       │               └── No official "go back" mechanism
+       │
+       └── Creates ALL artifacts at once
+```
+
+**OPSX** — natural iteration:
+
+```
+  /opsx:new ───► /opsx:continue ───► /opsx:apply ───► /opsx:archive
+      │                │                  │
+      │                │                  ├── "The design is wrong"
+      │                │                  │
+      │                │                  ▼
+      │                │            Just edit design.md
+      │                │            and continue!
+      │                │                  │
+      │                │                  ▼
+      │                │         /opsx:apply picks up
+      │                │         where you left off
+      │                │
+      │                └── Creates ONE artifact, shows what's unlocked
+      │
+      └── Scaffolds change, waits for direction
+```
+
+### Custom Schemas
+
+Create custom workflows using the schema management commands:
+
+```bash
+# Create a new schema from scratch (interactive)
+openspec schema init my-workflow
+
+# Or fork an existing schema as a starting point
+openspec schema fork spec-driven my-workflow
+
+# Validate your schema structure
+openspec schema validate my-workflow
+
+# See where a schema resolves from (useful for debugging)
+openspec schema which my-workflow
+```
+
+Schemas are stored in `openspec/schemas/` (project-local, version controlled) or `~/.local/share/openspec/schemas/` (user global).
+
+**Schema structure:**
+```
+openspec/schemas/research-first/
+├── schema.yaml
+└── templates/
+    ├── research.md
+    ├── proposal.md
+    └── tasks.md
+```
+
+**Example schema.yaml:**
+```yaml
+name: research-first
+artifacts:
+  - id: research        # Added before proposal
+    generates: research.md
+    requires: []
+
+  - id: proposal
+    generates: proposal.md
+    requires: [research]  # Now depends on research
+
+  - id: tasks
+    generates: tasks.md
+    requires: [proposal]
+```
+
+**Dependency Graph:**
+```
+   research ──► proposal ──► tasks
+```
+
+### Summary
+
+| Aspect | Standard | OPSX |
+|--------|----------|------|
+| **Templates** | Hardcoded TypeScript | External YAML + Markdown |
+| **Dependencies** | None (all at once) | DAG with topological sort |
+| **State** | Phase-based mental model | Filesystem existence |
+| **Customization** | Edit source, rebuild | Create schema.yaml |
+| **Iteration** | Phase-locked | Fluid, edit anything |
+| **Editor Support** | 18+ configurator classes | Single skills directory |
+
+## Schemas
+
+Schemas define what artifacts exist and their dependencies. Currently available:
+
+- **spec-driven** (default): proposal → specs → design → tasks
+- **tdd**: tests → implementation → docs
+
+```bash
+# List available schemas
+openspec schemas
+
+# See all schemas with their resolution sources
+openspec schema which --all
+
+# Create a new schema interactively
+openspec schema init my-workflow
+
+# Fork an existing schema for customization
+openspec schema fork spec-driven my-workflow
+
+# Validate schema structure before use
+openspec schema validate my-workflow
+```
+
+## Tips
+
+- Use `/opsx:explore` to think through an idea before committing to a change
+- `/opsx:ff` when you know what you want, `/opsx:continue` when exploring
+- During `/opsx:apply`, if something's wrong — fix the artifact, then continue
+- Tasks track progress via checkboxes in `tasks.md`
+- Check status anytime: `openspec status --change "name"`
+
+## Feedback
+
+This is rough. That's intentional — we're learning what works.
+
+Found a bug? Have ideas? Join us on [Discord](https://discord.gg/BYjPaKbqMt) or open an issue on [GitHub](https://github.com/Fission-AI/openspec/issues).

docs/multi-language-output.md

@@ -0,0 +1,217 @@
+# Multi-Language Output Guide
+
+Configure OpenSpec to generate artifacts in languages other than English.
+
+## Overview
+
+OpenSpec can output proposals, specs, designs, and tasks in any language by adding language instructions to your project's `context` configuration. This approach uses the existing config system without requiring any code changes.
+
+## Quick Setup
+
+### If you already have a config file
+
+Add a language instruction to your existing `openspec/config.yaml`:
+
+```yaml
+schema: spec-driven
+
+context: |
+  Language: Portuguese (pt-BR)
+  All artifacts must be written in Brazilian Portuguese.
+  Use Portuguese technical terminology where appropriate.
+
+  # Your other project context below...
+  Tech stack: TypeScript, React, Node.js
+```
+
+That's it. All generated artifacts will now be in Portuguese.
+
+### If you don't have a config file yet
+
+You can create one interactively or manually:
+
+**Option 1: Interactive setup**
+
+```bash
+openspec artifact-experimental-setup
+```
+
+This will guide you through creating `openspec/config.yaml` with schema selection, context, and rules.
+
+**Option 2: Manual creation**
+
+Create the file `openspec/config.yaml` in your project root:
+
+```bash
+mkdir -p openspec
+cat > openspec/config.yaml << 'EOF'
+schema: spec-driven
+
+context: |
+  Language: Portuguese (pt-BR)
+  All artifacts must be written in Brazilian Portuguese.
+EOF
+```
+
+## Language Examples
+
+### Portuguese (Brazil)
+
+```yaml
+context: |
+  Language: Portuguese (pt-BR)
+  All artifacts (proposals, specs, designs, tasks) must be written in Brazilian Portuguese.
+  Use Brazilian Portuguese conventions for technical terminology.
+```
+
+### Spanish
+
+```yaml
+context: |
+  Idioma: Español
+  Todos los artefactos deben escribirse en español.
+  Utilizar terminología técnica en español cuando sea posible.
+```
+
+### Chinese (Simplified)
+
+```yaml
+context: |
+  语言：中文（简体）
+  所有产出物（提案、规格、设计、任务）必须用简体中文撰写。
+  技术术语可以保留英文原文，但说明应使用中文。
+```
+
+### Japanese
+
+```yaml
+context: |
+  言語：日本語
+  すべての成果物は日本語で作成してください。
+  技術用語は必要に応じて英語を併記可能です。
+```
+
+### French
+
+```yaml
+context: |
+  Langue : Français
+  Tous les artefacts doivent être rédigés en français.
+  Utiliser la terminologie technique française lorsque possible.
+```
+
+### German
+
+```yaml
+context: |
+  Sprache: Deutsch
+  Alle Artefakte müssen auf Deutsch verfasst werden.
+  Technische Fachbegriffe können auf Englisch beibehalten werden.
+```
+
+## How It Works
+
+The `context` field in `openspec/config.yaml` is injected into every artifact's instructions as an XML block:
+
+```xml
+<context>
+Language: Portuguese (pt-BR)
+All artifacts must be written in Brazilian Portuguese.
+...
+</context>
+
+<template>
+[Schema's template content]
+</template>
+```
+
+The AI assistant sees this context when generating any artifact and follows the language instruction.
+
+## Tips
+
+### Be Explicit About Scope
+
+Specify which parts should be in the target language:
+
+```yaml
+context: |
+  Language: Spanish
+  Write all prose, descriptions, and explanations in Spanish.
+  Code comments may remain in English for consistency with the codebase.
+  Variable names and code identifiers should stay in English.
+```
+
+### Handle Technical Terms
+
+Decide how to handle technical terminology:
+
+```yaml
+context: |
+  Language: Japanese
+  Write in Japanese, but:
+  - Keep technical terms like "API", "REST", "GraphQL" in English
+  - Provide Japanese explanations in parentheses for complex terms on first use
+  - Code examples and file paths remain in English
+```
+
+### Combine with Other Context
+
+Language settings work alongside your other project context:
+
+```yaml
+schema: spec-driven
+
+context: |
+  Language: Portuguese (pt-BR)
+  All artifacts must be written in Brazilian Portuguese.
+
+  Tech stack: TypeScript, React 18, Node.js 20
+  Database: PostgreSQL with Prisma ORM
+  Testing: Vitest + React Testing Library
+
+  Conventions:
+  - Use functional components with hooks
+  - Follow existing patterns in src/components/
+```
+
+## Verification
+
+To verify your language config is working:
+
+```bash
+# Create a test change
+openspec new change test-language
+
+# Check the instructions - should show your language context
+openspec instructions proposal --change test-language
+
+# Output will include:
+# <context>
+# Language: Portuguese (pt-BR)
+# All artifacts must be written in Brazilian Portuguese.
+# ...
+# </context>
+```
+
+## Limitations
+
+- Language instructions apply to **all** artifacts. You cannot set different languages for different artifact types.
+- The effectiveness depends on the AI model's proficiency in the target language.
+- Technical diagrams, code samples, and file paths typically remain in English regardless of language setting.
+
+## Future Considerations
+
+We're considering adding a dedicated `language` field to the config schema in a future release:
+
+```yaml
+# Potential future syntax (not yet implemented)
+schema: spec-driven
+language: pt-BR
+```
+
+For now, the `context` approach described above is the recommended method. It provides full flexibility and works with all current versions of OpenSpec.
+
+## Related Documentation
+
+- [Project Config Demo](./project-config-demo.md) - Overview of project configuration
+- [Experimental Workflow Guide](./experimental-workflow.md) - Full workflow documentation

docs/project-config-demo.md

@@ -0,0 +1,205 @@
+# Project Config Demo Guide
+
+A quick-reference guide for demonstrating the `openspec/config.yaml` feature.
+
+## Summary: What Project Config Does
+
+The feature adds `openspec/config.yaml` as a lightweight customization layer that lets teams:
+
+- **Set a default schema** - New changes automatically use this schema instead of having to specify `--schema` every time
+- **Inject project context** - Shared context (tech stack, conventions) shown to AI when creating any artifact
+- **Add per-artifact rules** - Custom rules that only apply to specific artifacts (e.g., proposal, specs)
+
+## Demo Walkthrough
+
+### Demo 1: Interactive Setup (Recommended Entry Point)
+
+The easiest way to demo is through the experimental setup command:
+
+```bash
+openspec artifact-experimental-setup
+```
+
+After creating skills/commands, it will prompt:
+
+```
+━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
+
+📋 Project Configuration (Optional)
+
+Configure project defaults for OpenSpec workflows.
+
+? Create openspec/config.yaml? (Y/n)
+```
+
+Walk through:
+
+1. **Select schema** - Shows available schemas with their artifact flows
+2. **Add context** - Opens editor for multi-line project context (tech stack, conventions)
+3. **Add rules** - Checkbox to select artifacts, then line-by-line rule entry
+
+This creates `openspec/config.yaml` with the user's choices.
+
+### Demo 2: Manual Config Creation
+
+Show that users can create the config directly:
+
+```bash
+cat > openspec/config.yaml << 'EOF'
+schema: spec-driven
+
+context: |
+  Tech stack: TypeScript, React, Node.js, PostgreSQL
+  API style: RESTful, documented in docs/api.md
+  Testing: Jest + React Testing Library
+  We value backwards compatibility for all public APIs
+
+rules:
+  proposal:
+    - Include rollback plan
+    - Identify affected teams and notify in #platform-changes
+  specs:
+    - Use Given/When/Then format
+    - Reference existing patterns before inventing new ones
+EOF
+```
+
+### Demo 3: Effect on New Changes
+
+Show that creating a new change now uses the default schema:
+
+```bash
+# Before config: had to specify schema
+openspec new change my-feature --schema spec-driven
+
+# After config: schema is automatic
+openspec new change my-feature
+# Automatically uses spec-driven from config
+```
+
+### Demo 4: Context and Rules Injection
+
+The key demo moment - show how instructions are enriched:
+
+```bash
+# Get instructions for an artifact
+openspec instructions proposal --change my-feature
+```
+
+Output shows the XML structure:
+
+```xml
+<context>
+Tech stack: TypeScript, React, Node.js, PostgreSQL
+API style: RESTful, documented in docs/api.md
+...
+</context>
+
+<rules>
+- Include rollback plan
+- Identify affected teams and notify in #platform-changes
+</rules>
+
+<template>
+[Schema's built-in proposal template]
+</template>
+```
+
+Key points to highlight:
+
+- **Context** appears in ALL artifacts (proposal, specs, design, tasks)
+- **Rules** ONLY appear for the matching artifact (proposal rules only in proposal instructions)
+
+### Demo 5: Precedence Override
+
+Show the schema resolution order:
+
+```bash
+# Config sets schema: spec-driven
+
+# 1. CLI flag wins
+openspec new change feature-a --schema tdd  # Uses tdd
+
+# 2. Change metadata wins over config
+# (if .openspec.yaml in change directory specifies schema)
+
+# 3. Config is used as default
+openspec new change feature-b  # Uses spec-driven from config
+
+# 4. Hardcoded default (no config)
+# Would fall back to spec-driven anyway
+```
+
+### Demo 6: Validation and Error Handling
+
+Show graceful error handling:
+
+```bash
+# Create config with typo
+echo "schema: spec-drivne" > openspec/config.yaml
+
+# Try to use it - shows fuzzy matching suggestions
+openspec new change test
+# Schema 'spec-drivne' not found
+# Did you mean: spec-driven (built-in)
+```
+
+```bash
+# Unknown artifact ID in rules - warns but doesn't halt
+cat > openspec/config.yaml << 'EOF'
+schema: spec-driven
+rules:
+  testplan:  # Schema doesn't have this
+    - Some rule
+EOF
+
+openspec instructions proposal --change test
+# ⚠️ Unknown artifact ID in rules: "testplan". Valid IDs for schema "spec-driven": ...
+# (continues working)
+```
+
+## Quick Demo Script
+
+Here's a quick all-in-one demo:
+
+```bash
+# 1. Show there's no config initially
+cat openspec/config.yaml 2>/dev/null || echo "No config exists"
+
+# 2. Create a simple config
+cat > openspec/config.yaml << 'EOF'
+schema: spec-driven
+context: |
+  This is a demo project using React and TypeScript.
+  We follow semantic versioning.
+rules:
+  proposal:
+    - Include migration steps if breaking change
+EOF
+
+# 3. Show the config
+cat openspec/config.yaml
+
+# 4. Create a change (uses default schema from config)
+openspec new change demo-feature
+
+# 5. Show instructions with injected context/rules
+openspec instructions proposal --change demo-feature | head -30
+
+# 6. Show that specs don't have proposal rules
+openspec instructions specs --change demo-feature | head -30
+```
+
+## What to Emphasize in Demo
+
+- **Low friction** - Teams can customize without forking schemas
+- **Shared context** - Everyone on the team gets the same project knowledge
+- **Per-artifact rules** - Targeted guidance where it matters
+- **Graceful failures** - Typos warn, don't break workflow
+- **Team sharing** - Just commit `openspec/config.yaml` and everyone benefits
+
+## Related Documentation
+
+- [Experimental Workflow Guide](./experimental-workflow.md) - Full user guide with config section
+- [Project Config Proposal](../openspec/changes/project-config/proposal.md) - Original design proposal
+- [Project Config Design](../openspec/changes/project-config/design.md) - Technical implementation details

docs/schema-customization.md

@@ -0,0 +1,211 @@
+# Schema Customization
+
+This document describes how users can customize OpenSpec schemas and templates, the current manual process, and the gap that needs to be addressed.
+
+---
+
+## Overview
+
+OpenSpec uses a 2-level schema resolution system following the XDG Base Directory Specification:
+
+1. **User override**: `${XDG_DATA_HOME}/openspec/schemas/<name>/`
+2. **Package built-in**: `<npm-package>/schemas/<name>/`
+
+When a schema is requested (e.g., `spec-driven`), the resolver checks the user directory first. If found, that entire schema directory is used. Otherwise, it falls back to the package's built-in schema.
+
+---
+
+## Current Manual Process
+
+To override the default `spec-driven` schema, a user must:
+
+### 1. Determine the correct directory path
+
+| Platform | Path |
+|----------|------|
+| macOS/Linux | `~/.local/share/openspec/schemas/` |
+| Windows | `%LOCALAPPDATA%\openspec\schemas\` |
+| All (if set) | `$XDG_DATA_HOME/openspec/schemas/` |
+
+### 2. Create the directory structure
+
+```bash
+# macOS/Linux example
+mkdir -p ~/.local/share/openspec/schemas/spec-driven/templates
+```
+
+### 3. Find and copy the default schema files
+
+The user must locate the installed npm package to copy the defaults:
+
+```bash
+# Find the package location (varies by install method)
+npm list -g openspec --parseable
+# or
+which openspec && readlink -f $(which openspec)
+
+# Copy files from the package's schemas/ directory
+cp <package-path>/schemas/spec-driven/schema.yaml ~/.local/share/openspec/schemas/spec-driven/
+cp <package-path>/schemas/spec-driven/templates/*.md ~/.local/share/openspec/schemas/spec-driven/templates/
+```
+
+### 4. Modify the copied files
+
+Edit `schema.yaml` to change the workflow structure:
+
+```yaml
+name: spec-driven
+version: 1
+description: My custom workflow
+artifacts:
+  - id: proposal
+    generates: proposal.md
+    description: Initial proposal
+    template: proposal.md
+    requires: []
+  # Add, remove, or modify artifacts...
+```
+
+Edit templates in `templates/` to customize the content guidance.
+
+### 5. Verify the override is active
+
+Currently there's no command to verify which schema is being used. Users must trust that the file exists in the right location.
+
+---
+
+## Gap Analysis
+
+The current process has several friction points:
+
+| Issue | Impact |
+|-------|--------|
+| **Path discovery** | Users must know XDG conventions and platform-specific paths |
+| **Package location** | Finding the npm package path varies by install method (global, local, pnpm, yarn, volta, etc.) |
+| **No scaffolding** | Users must manually create directories and copy files |
+| **No verification** | No way to confirm which schema is actually being resolved |
+| **No diffing** | When upgrading openspec, users can't see what changed in built-in templates |
+| **Full copy required** | Must copy entire schema even to change one template |
+
+### User Stories Not Currently Supported
+
+1. *"I want to add a `research` artifact before `proposal`"* — requires manual copy and edit
+2. *"I want to customize just the proposal template"* — must copy entire schema
+3. *"I want to see what the default schema looks like"* — must find package path
+4. *"I want to revert to defaults"* — must delete files and hope paths are correct
+5. *"I upgraded openspec, did the templates change?"* — no way to diff
+
+---
+
+## Proposed Solution: Schema Configurator
+
+A CLI command (or set of commands) that handles path resolution and file operations for users.
+
+### Option A: Single `openspec schema` command
+
+```bash
+# List available schemas (built-in and user overrides)
+openspec schema list
+
+# Show where a schema resolves from
+openspec schema which spec-driven
+# Output: /Users/me/.local/share/openspec/schemas/spec-driven/ (user override)
+# Output: /usr/local/lib/node_modules/openspec/schemas/spec-driven/ (built-in)
+
+# Copy a built-in schema to user directory for customization
+openspec schema copy spec-driven
+# Creates ~/.local/share/openspec/schemas/spec-driven/ with all files
+
+# Show diff between user override and built-in
+openspec schema diff spec-driven
+
+# Remove user override (revert to built-in)
+openspec schema reset spec-driven
+
+# Validate a schema
+openspec schema validate spec-driven
+```
+
+### Option B: Dedicated `openspec customize` command
+
+```bash
+# Interactive schema customization
+openspec customize
+# Prompts: Which schema? What do you want to change? etc.
+
+# Copy and open for editing
+openspec customize spec-driven
+# Copies to user dir, prints path, optionally opens in $EDITOR
+```
+
+### Option C: Init-time schema selection
+
+```bash
+# During project init, offer schema customization
+openspec init
+# ? Select a workflow schema:
+#   > spec-driven (default)
+#     tdd
+#     minimal
+#     custom (copy and edit)
+```
+
+### Recommended Approach
+
+**Option A** provides the most flexibility and follows Unix conventions (subcommands for discrete operations). Key commands in priority order:
+
+1. `openspec schema list` — see what's available
+2. `openspec schema which <name>` — debug resolution
+3. `openspec schema copy <name>` — scaffold customization
+4. `openspec schema diff <name>` — compare with built-in
+5. `openspec schema reset <name>` — revert to defaults
+
+---
+
+## Implementation Considerations
+
+### Path Resolution
+
+The resolver already exists in `src/core/artifact-graph/resolver.ts`:
+
+```typescript
+export function getPackageSchemasDir(): string { ... }
+export function getUserSchemasDir(): string { ... }
+export function getSchemaDir(name: string): string | null { ... }
+export function listSchemas(): string[] { ... }
+```
+
+New commands would leverage these existing functions.
+
+### File Operations
+
+- Copy should preserve file permissions
+- Copy should not overwrite existing user files without `--force`
+- Reset should prompt for confirmation
+
+### Template-Only Overrides
+
+A future enhancement could support overriding individual templates without copying the entire schema. This would require changes to the resolution logic:
+
+```
+Current: schema dir (user) OR schema dir (built-in)
+Future:  schema.yaml from user OR built-in
+         + each template from user OR built-in (independent fallback)
+```
+
+This adds complexity but enables the "I just want to change one template" use case.
+
+---
+
+## Related Documents
+
+- [Schema Workflow Gaps](./schema-workflow-gaps.md) — End-to-end workflow analysis and phased implementation plan
+
+## Related Files
+
+| File | Purpose |
+|------|---------|
+| `src/core/artifact-graph/resolver.ts` | Schema resolution logic |
+| `src/core/artifact-graph/instruction-loader.ts` | Template loading |
+| `src/core/global-config.ts` | XDG path helpers |
+| `schemas/spec-driven/` | Default schema and templates |

docs/schema-workflow-gaps.md

@@ -0,0 +1,379 @@
+# Schema Workflow: End-to-End Analysis
+
+This document analyzes the complete user journey for working with schemas in OpenSpec, identifies gaps, and proposes a phased solution.
+
+---
+
+## Current State
+
+### What Exists
+
+| Component | Status |
+|-----------|--------|
+| Schema resolution | 3-level: project → user → package (PR #522) |
+| Built-in schemas | `spec-driven`, `tdd` |
+| Artifact workflow commands | `status`, `next`, `instructions`, `templates` with `--schema` flag |
+| Change creation | `openspec new change <name>` — no schema binding |
+| Project-local schemas | ✅ Supported via `openspec/schemas/` (PR #522) |
+| Schema management CLI | ✅ `schema which`, `validate`, `fork`, `init` (PR #525) |
+
+### What's Missing
+
+| Component | Status |
+|-----------|--------|
+| Schema bound to change | Not stored — must pass `--schema` every time |
+| Project default schema | None — hardcoded to `spec-driven` |
+
+---
+
+## User Journey Analysis
+
+### Scenario 1: Using a Non-Default Schema
+
+**Goal:** User wants to use TDD workflow for a new feature.
+
+**Today's experience:**
+```bash
+openspec new change add-auth
+# Creates directory, no schema info stored
+
+openspec status --change add-auth
+# Shows spec-driven artifacts (WRONG - user wanted TDD)
+
+# User realizes mistake...
+openspec status --change add-auth --schema tdd
+# Correct, but must remember --schema every time
+
+# 6 months later...
+openspec status --change add-auth
+# Wrong again - nobody remembers this was TDD
+```
+
+**Problems:**
+- Schema is a runtime argument, not persisted
+- Easy to forget `--schema` and get wrong results
+- No record of intended schema for future reference
+
+---
+
+### Scenario 2: Customizing a Schema
+
+**Goal:** User wants to add a "research" artifact before "proposal".
+
+**Today's experience:**
+```bash
+# Step 1: Figure out where to put overrides
+# Must know XDG conventions:
+#   macOS/Linux: ~/.local/share/openspec/schemas/
+#   Windows: %LOCALAPPDATA%\openspec\schemas/
+
+# Step 2: Create directory structure
+mkdir -p ~/.local/share/openspec/schemas/my-workflow/templates
+
+# Step 3: Find the npm package to copy defaults
+npm list -g openspec --parseable
+# Output varies by package manager:
+#   npm: /usr/local/lib/node_modules/openspec
+#   pnpm: ~/.local/share/pnpm/global/5/node_modules/openspec
+#   volta: ~/.volta/tools/image/packages/openspec/...
+#   yarn: ~/.config/yarn/global/node_modules/openspec
+
+# Step 4: Copy files
+cp -r <package-path>/schemas/spec-driven/* \
+      ~/.local/share/openspec/schemas/my-workflow/
+
+# Step 5: Edit schema.yaml and templates
+# No way to verify override is active
+# No way to diff against original
+```
+
+**Problems:**
+- Must know XDG path conventions
+- Finding npm package path varies by install method
+- No tooling to scaffold or verify
+- No diff capability when upgrading openspec
+
+---
+
+### Scenario 3: Team Sharing Custom Workflow
+
+**Goal:** Team wants everyone to use the same custom schema.
+
+**Today's options:**
+1. Everyone manually sets up XDG override — error-prone, drift risk
+2. Document setup in README — still manual, easy to miss
+3. Publish separate npm package — overkill for most teams
+4. Check schema into repo — **not supported** (no project-local resolution)
+
+**Problems:**
+- No project-local schema resolution
+- Can't version control custom schemas with the codebase
+- No single source of truth for team workflow
+
+---
+
+## Gap Summary
+
+| Gap | Impact | Status |
+|-----|--------|--------|
+| Schema not bound to change | Wrong results, forgotten context | ⏳ Pending (Phase 1) |
+| No project-local schemas | Can't share via repo | ✅ Fixed (PR #522) |
+| No schema management CLI | Manual path hunting | ✅ Fixed (PR #525) |
+| No project default schema | Must specify every time | ⏳ Pending (Phase 4) |
+| No init-time schema selection | Missed setup opportunity | ⏳ Pending (Phase 4) |
+
+---
+
+## Proposed Architecture
+
+### New File Structure
+
+```
+openspec/
+├── config.yaml                 # Project config (NEW)
+├── schemas/                    # Project-local schemas (NEW)
+│   └── my-workflow/
+│       ├── schema.yaml
+│       └── templates/
+│           ├── research.md
+│           ├── proposal.md
+│           └── ...
+└── changes/
+    └── add-auth/
+        ├── change.yaml         # Change metadata (NEW)
+        ├── proposal.md
+        └── ...
+```
+
+### config.yaml (Project Config)
+
+```yaml
+# openspec/config.yaml
+defaultSchema: spec-driven
+```
+
+Sets the project-wide default schema. Used when:
+- Creating new changes without `--schema`
+- Running commands on changes without `change.yaml`
+
+### change.yaml (Change Metadata)
+
+```yaml
+# openspec/changes/add-auth/change.yaml
+schema: tdd
+created: 2025-01-15T10:30:00Z
+description: Add user authentication system
+```
+
+Binds a specific schema to a change. Created automatically by `openspec new change`.
+
+### Schema Resolution Order
+
+```
+1. ./openspec/schemas/<name>/                    # Project-local
+2. ~/.local/share/openspec/schemas/<name>/       # User global (XDG)
+3. <npm-package>/schemas/<name>/                 # Built-in
+```
+
+Project-local takes priority, enabling version-controlled custom schemas.
+
+### Schema Selection Order (Per Command)
+
+```
+1. --schema CLI flag                    # Explicit override
+2. change.yaml in change directory      # Change-specific binding
+3. openspec/config.yaml defaultSchema   # Project default
+4. "spec-driven"                        # Hardcoded fallback
+```
+
+---
+
+## Ideal User Experience
+
+### Creating a Change
+
+```bash
+# Uses project default (from config.yaml, or spec-driven)
+openspec new change add-auth
+# Creates openspec/changes/add-auth/change.yaml:
+#   schema: spec-driven
+#   created: 2025-01-15T10:30:00Z
+
+# Explicit schema for this change
+openspec new change add-auth --schema tdd
+# Creates change.yaml with schema: tdd
+```
+
+### Working with Changes
+
+```bash
+# Auto-reads schema from change.yaml — no --schema needed
+openspec status --change add-auth
+# Output: "Change: add-auth (schema: tdd)"
+# Shows which artifacts are ready/blocked/done
+
+# Explicit override still works (with informational message)
+openspec status --change add-auth --schema spec-driven
+# "Note: change.yaml specifies 'tdd', using 'spec-driven' per --schema flag"
+```
+
+### Customizing Schemas
+
+```bash
+# See what's available
+openspec schema list
+# Built-in:
+#   spec-driven    proposal → specs → design → tasks
+#   tdd            spec → tests → implementation → docs
+# Project: (none)
+# User: (none)
+
+# Copy to project for customization
+openspec schema copy spec-driven my-workflow
+# Created ./openspec/schemas/my-workflow/
+# Edit schema.yaml and templates/ to customize
+
+# Copy to global (user-level override)
+openspec schema copy spec-driven --global
+# Created ~/.local/share/openspec/schemas/spec-driven/
+
+# See where a schema resolves from
+openspec schema which spec-driven
+# ./openspec/schemas/spec-driven/ (project)
+# or: ~/.local/share/openspec/schemas/spec-driven/ (user)
+# or: /usr/local/lib/node_modules/openspec/schemas/spec-driven/ (built-in)
+
+# Compare override with built-in
+openspec schema diff spec-driven
+# Shows diff between user/project version and package built-in
+
+# Remove override, revert to built-in
+openspec schema reset spec-driven
+# Removes ./openspec/schemas/spec-driven/ (or --global for user dir)
+```
+
+### Project Setup
+
+```bash
+openspec init
+# ? Select default workflow schema:
+#   > spec-driven (proposal → specs → design → tasks)
+#     tdd (spec → tests → implementation → docs)
+#     (custom schemas if detected)
+#
+# Writes to openspec/config.yaml:
+#   defaultSchema: spec-driven
+```
+
+---
+
+## Implementation Phases
+
+### Phase 1: Change Metadata (change.yaml)
+
+**Priority:** High
+**Solves:** "Forgot --schema", lost context, wrong results
+
+**Scope:**
+- Create `change.yaml` when running `openspec new change`
+- Store `schema`, `created` timestamp
+- Modify workflow commands to read schema from `change.yaml`
+- `--schema` flag overrides (with informational message)
+- Backwards compatible: missing `change.yaml` → use default
+
+**change.yaml format:**
+```yaml
+schema: tdd
+created: 2025-01-15T10:30:00Z
+```
+
+**Migration:**
+- Existing changes without `change.yaml` continue to work
+- Default to `spec-driven` (current behavior)
+- Optional: `openspec migrate` to add `change.yaml` to existing changes
+
+---
+
+### Phase 2: Project-Local Schemas
+
+**Status:** ✅ Complete (PR #522)
+**Solves:** Team sharing, version control, no XDG knowledge needed
+
+**Implemented:**
+- `./openspec/schemas/` added to resolution order (first priority)
+- `openspec schema fork <name> [new-name]` creates in project by default
+- Teams can commit `openspec/schemas/` to repo
+
+**Resolution order:**
+```
+1. ./openspec/schemas/<name>/           # Project-local
+2. ~/.local/share/openspec/schemas/<name>/  # User global
+3. <npm-package>/schemas/<name>/        # Built-in
+```
+
+---
+
+### Phase 3: Schema Management CLI
+
+**Status:** ✅ Complete (PR #525)
+**Solves:** Path discovery, scaffolding, debugging
+
+**Implemented Commands:**
+```bash
+openspec schema which [name]          # Show resolution path, --all for all schemas
+openspec schema validate [name]       # Validate schema structure and templates
+openspec schema fork <source> [name]  # Copy existing schema for customization
+openspec schema init <name>           # Create new project-local schema (interactive)
+```
+
+**Not implemented (may add later):**
+- `schema diff` — Compare override with built-in
+- `schema reset` — Remove override, revert to built-in
+
+---
+
+### Phase 4: Project Config + Init Enhancement
+
+**Priority:** Low
+**Solves:** Project-wide defaults, streamlined setup
+
+**Scope:**
+- Add `openspec/config.yaml` with `defaultSchema` field
+- `openspec init` prompts for schema selection
+- Store selection in `config.yaml`
+- Commands use as fallback when no `change.yaml` exists
+
+**config.yaml format:**
+```yaml
+defaultSchema: spec-driven
+```
+
+---
+
+## Backwards Compatibility
+
+| Scenario | Behavior |
+|----------|----------|
+| Existing change without `change.yaml` | Uses `--schema` flag or project default or `spec-driven` |
+| Existing project without `config.yaml` | Falls back to `spec-driven` |
+| `--schema` flag provided | Overrides `change.yaml` (with info message) |
+| No project-local schemas dir | Skipped in resolution, checks user/built-in |
+
+All existing functionality continues to work. New features are additive.
+
+---
+
+## Related Documents
+
+- [Schema Customization](./schema-customization.md) — Details on manual override process and CLI gaps
+- [Artifact POC](./artifact_poc.md) — Core artifact graph architecture
+
+## Related Code
+
+| File | Purpose |
+|------|---------|
+| `src/core/artifact-graph/resolver.ts` | Schema resolution logic |
+| `src/core/artifact-graph/instruction-loader.ts` | Template loading |
+| `src/core/global-config.ts` | XDG path helpers |
+| `src/commands/artifact-workflow.ts` | CLI commands |
+| `src/utils/change-utils.ts` | Change creation utilities |

eslint.config.js

@@ -0,0 +1,42 @@
+import tseslint from 'typescript-eslint';
+
+export default tseslint.config(
+  {
+    files: ['src/**/*.ts'],
+    extends: [...tseslint.configs.recommended],
+    rules: {
+      // Prevent static imports of @inquirer modules to avoid pre-commit hook hangs.
+      // These modules have side effects that can keep the Node.js event loop alive
+      // when stdin is piped. Use dynamic import() instead.
+      // See: https://github.com/Fission-AI/OpenSpec/issues/367
+      'no-restricted-imports': [
+        'error',
+        {
+          patterns: [
+            {
+              group: ['@inquirer/*'],
+              message:
+                'Use dynamic import() for @inquirer modules to prevent pre-commit hook hangs. See #367.',
+            },
+          ],
+        },
+      ],
+      // Disable rules that need broader cleanup - focus on critical issues only
+      '@typescript-eslint/no-explicit-any': 'off',
+      '@typescript-eslint/no-unused-vars': 'off',
+      'no-empty': 'off',
+      'prefer-const': 'off',
+    },
+  },
+  {
+    // init.ts is dynamically imported from cli/index.ts, so static @inquirer
+    // imports there are safe - they won't be loaded at CLI startup
+    files: ['src/core/init.ts'],
+    rules: {
+      'no-restricted-imports': 'off',
+    },
+  },
+  {
+    ignores: ['dist/**', 'node_modules/**', '*.js', '*.mjs'],
+  }
+);

flake.lock

@@ -0,0 +1,27 @@
+{
+  "nodes": {
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1767640445,
+        "narHash": "sha256-UWYqmD7JFBEDBHWYcqE6s6c77pWdcU/i+bwD6XxMb8A=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "9f0c42f8bc7151b8e7e5840fb3bd454ad850d8c5",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

@@ -0,0 +1,87 @@
+{
+  description = "OpenSpec - AI-native system for spec-driven development";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+  };
+
+  outputs = { self, nixpkgs }:
+    let
+      supportedSystems = [ "x86_64-linux" "aarch64-linux" "x86_64-darwin" "aarch64-darwin" ];
+
+      forAllSystems = f: nixpkgs.lib.genAttrs supportedSystems (system: f system);
+    in
+    {
+      packages = forAllSystems (system:
+        let
+          pkgs = nixpkgs.legacyPackages.${system};
+        in
+        {
+          default = pkgs.stdenv.mkDerivation (finalAttrs: {
+            pname = "openspec";
+            version = "0.20.0";
+
+            src = ./.;
+
+            pnpmDeps = pkgs.fetchPnpmDeps {
+              inherit (finalAttrs) pname version src;
+              pnpm = pkgs.pnpm_9;
+              fetcherVersion = 3;
+              hash = "sha256-m/7IdY1ou9ljjYAcx3W8AyEJvIZfCBWIWxproQ/INPA=";
+            };
+
+            nativeBuildInputs = with pkgs; [
+              nodejs_20
+              npmHooks.npmInstallHook
+              pnpmConfigHook
+              pnpm_9
+            ];
+
+            buildPhase = ''
+              runHook preBuild
+
+              pnpm run build
+
+              runHook postBuild
+            '';
+
+            dontNpmPrune = true;
+
+            meta = with pkgs.lib; {
+              description = "AI-native system for spec-driven development";
+              homepage = "https://github.com/Fission-AI/OpenSpec";
+              license = licenses.mit;
+              maintainers = [ ];
+              mainProgram = "openspec";
+            };
+          });
+        });
+
+      apps = forAllSystems (system: {
+        default = {
+          type = "app";
+          program = "${self.packages.${system}.default}/bin/openspec";
+        };
+      });
+
+      devShells = forAllSystems (system:
+        let
+          pkgs = nixpkgs.legacyPackages.${system};
+        in
+        {
+          default = pkgs.mkShell {
+            buildInputs = with pkgs; [
+              nodejs_20
+              pnpm_9
+            ];
+
+            shellHook = ''
+              echo "OpenSpec development environment"
+              echo "Node version: $(node --version)"
+              echo "pnpm version: $(pnpm --version)"
+              echo "Run 'pnpm install' to install dependencies"
+            '';
+          };
+        });
+    };
+}

openspec/AGENTS.md

@@ -9,7 +9,7 @@ Instructions for AI coding assistants using OpenSpec for spec-driven development
 - Pick a unique `change-id`: kebab-case, verb-led (`add-`, `update-`, `remove-`, `refactor-`)
 - Scaffold: `proposal.md`, `tasks.md`, `design.md` (only if needed), and delta specs per affected capability
 - Write deltas: use `## ADDED|MODIFIED|REMOVED|RENAMED Requirements`; include at least one `#### Scenario:` per requirement
-- Validate: `openspec validate [change-id] --strict` and fix issues
+- Validate: `openspec validate [change-id] --strict --no-interactive` and fix issues
 - Request approval: Do not start implementation until proposal is approved
 
 ## Three-Stage Workflow
@@ -44,7 +44,7 @@ Skip proposal for:
 1. Review `openspec/project.md`, `openspec list`, and `openspec list --specs` to understand current context.
 2. Choose a unique verb-led `change-id` and scaffold `proposal.md`, `tasks.md`, optional `design.md`, and spec deltas under `openspec/changes/<id>/`.
 3. Draft spec deltas using `## ADDED|MODIFIED|REMOVED Requirements` with at least one `#### Scenario:` per requirement.
-4. Run `openspec validate <id> --strict` and resolve any issues before sharing the proposal.
+4. Run `openspec validate <id> --strict --no-interactive` and resolve any issues before sharing the proposal.
 
 ### Stage 2: Implementing Changes
 Track these steps as TODOs and complete them one by one.
@@ -61,7 +61,7 @@ After deployment, create separate PR to:
 - Move `changes/[name]/` → `changes/archive/YYYY-MM-DD-[name]/`
 - Update `specs/` if capabilities changed
 - Use `openspec archive <change-id> --skip-specs --yes` for tooling-only changes (always pass the change ID explicitly)
-- Run `openspec validate --strict` to confirm the archived change passes checks
+- Run `openspec validate --strict --no-interactive` to confirm the archived change passes checks
 
 ## Before Any Task
 
@@ -108,7 +108,7 @@ openspec validate              # Bulk validation mode
 
 # Debugging
 openspec show [change] --json --deltas-only
-openspec validate [change] --strict
+openspec validate [change] --strict --no-interactive
 ```
 
 ### Command Flags
@@ -160,6 +160,8 @@ New request?
 
 2. **Write proposal.md:**
 ```markdown
+# Change: [Brief description of change]
+
 ## Why
 [1-2 sentences on problem/opportunity]
 
@@ -304,7 +306,7 @@ Example for RENAMED:
 
 ```bash
 # Always use strict mode for comprehensive checks
-openspec validate [change] --strict
+openspec validate [change] --strict --no-interactive
 
 # Debug delta parsing
 openspec show [change] --json | jq '.deltas'
@@ -341,7 +343,7 @@ Users MUST provide a second factor during login.
 EOF
 
 # 4) Validate
-openspec validate $CHANGE --strict
+openspec validate $CHANGE --strict --no-interactive
 ```
 
 ## Multi-Capability Example
@@ -447,7 +449,7 @@ Only add complexity with:
 ```bash
 openspec list              # What's in progress?
 openspec show [item]       # View details
-openspec validate --strict # Is it correct?
+openspec validate --strict --no-interactive  # Is it correct?
 openspec archive <change-id> [--yes|-y]  # Mark complete (add --yes for automation)
 ```
 

openspec/changes/add-feedback-command/proposal.md

@@ -0,0 +1,20 @@
+## Why
+
+Users and agents need a simple way to submit feedback about OpenSpec directly from the CLI. Currently there's no mechanism to collect user feedback, feature requests, or bug reports in a way that enables follow-up conversation. Using GitHub Issues allows us to track feedback, prevent spam via GitHub auth, and enables outreach to users.
+
+## What Changes
+
+- Add `openspec feedback <message>` CLI command
+- Leverage `gh` CLI for GitHub authentication and issue creation
+- Add `/feedback` skill for agent-assisted feedback with context enrichment
+- Ensure cross-platform compatibility (macOS, Linux, Windows)
+
+## Impact
+
+- Affected specs: New `cli-feedback` capability
+- Affected code:
+  - `src/cli/index.ts` - Register feedback command
+  - `src/commands/feedback.ts` - Command implementation using `gh` CLI
+  - `src/core/templates/skill-templates.ts` - Feedback skill template
+  - `src/core/completions/command-registry.ts` - Shell completions
+- External dependency: Requires `gh` CLI installed and authenticated

openspec/changes/add-feedback-command/specs/cli-feedback/spec.md

@@ -0,0 +1,188 @@
+## ADDED Requirements
+
+### Requirement: Feedback command
+
+The system SHALL provide an `openspec feedback` command that creates a GitHub Issue in the openspec repository using the `gh` CLI. The system SHALL use `execFileSync` with argument arrays to prevent shell injection vulnerabilities.
+
+#### Scenario: Simple feedback submission
+
+- **WHEN** user executes `openspec feedback "Great tool!"`
+- **THEN** the system executes `gh issue create` with title "Feedback: Great tool!"
+- **AND** the issue is created in the openspec repository
+- **AND** the issue has the `feedback` label
+- **AND** the system displays the created issue URL
+
+#### Scenario: Safe command execution
+
+- **WHEN** submitting feedback via `gh` CLI
+- **THEN** the system uses `execFileSync` with separate arguments array
+- **AND** user input is NOT passed through a shell
+- **AND** shell metacharacters (quotes, backticks, $(), etc.) are treated as literal text
+
+#### Scenario: Feedback with body
+
+- **WHEN** user executes `openspec feedback "Title here" --body "Detailed description..."`
+- **THEN** the system creates a GitHub Issue with the specified title
+- **AND** the issue body contains the detailed description
+- **AND** the issue body includes metadata (OpenSpec version, platform, timestamp)
+
+### Requirement: GitHub CLI dependency
+
+The system SHALL use `gh` CLI for automatic feedback submission when available, and provide a manual submission fallback when `gh` is not installed or not authenticated. The system SHALL use platform-appropriate commands to detect `gh` CLI availability.
+
+#### Scenario: Missing gh CLI with fallback
+
+- **WHEN** user runs `openspec feedback "message"`
+- **AND** `gh` CLI is not installed (not found in PATH)
+- **THEN** the system displays warning: "GitHub CLI not found. Manual submission required."
+- **AND** outputs structured feedback content with delimiters:
+  - "--- FORMATTED FEEDBACK ---"
+  - Title line
+  - Labels line
+  - Body content with metadata
+  - "--- END FEEDBACK ---"
+- **AND** displays pre-filled GitHub issue URL for manual submission
+- **AND** exits with zero code (successful fallback)
+
+#### Scenario: Cross-platform gh CLI detection on Unix
+
+- **WHEN** system is running on macOS or Linux (platform is 'darwin' or 'linux')
+- **AND** checking if `gh` CLI is installed
+- **THEN** the system executes `which gh` command
+
+#### Scenario: Cross-platform gh CLI detection on Windows
+
+- **WHEN** system is running on Windows (platform is 'win32')
+- **AND** checking if `gh` CLI is installed
+- **THEN** the system executes `where gh` command
+
+#### Scenario: Unauthenticated gh CLI with fallback
+
+- **WHEN** user runs `openspec feedback "message"`
+- **AND** `gh` CLI is installed but not authenticated
+- **THEN** the system displays warning: "GitHub authentication required. Manual submission required."
+- **AND** outputs structured feedback content (same format as missing gh CLI scenario)
+- **AND** displays pre-filled GitHub issue URL for manual submission
+- **AND** displays authentication instructions: "To auto-submit in the future: gh auth login"
+- **AND** exits with zero code (successful fallback)
+
+#### Scenario: Authenticated gh CLI
+
+- **WHEN** user runs `openspec feedback "message"`
+- **AND** `gh auth status` returns success (authenticated)
+- **THEN** the system proceeds with feedback submission
+
+### Requirement: Issue metadata
+
+The system SHALL include relevant metadata in the GitHub Issue body.
+
+#### Scenario: Standard metadata
+
+- **WHEN** creating a GitHub Issue for feedback
+- **THEN** the issue body includes:
+  - OpenSpec CLI version
+  - Platform (darwin, linux, win32)
+  - Submission timestamp
+  - Separator line: "---\nSubmitted via OpenSpec CLI"
+
+#### Scenario: Windows platform metadata
+
+- **WHEN** creating a GitHub Issue for feedback on Windows
+- **THEN** the issue body includes "Platform: win32"
+- **AND** all platform detection uses Node.js `os.platform()` API
+
+#### Scenario: No sensitive metadata
+
+- **WHEN** creating a GitHub Issue for feedback
+- **THEN** the issue body does NOT include:
+  - File paths from user's system
+  - Project names or directory names
+  - Environment variables
+  - IP addresses
+
+### Requirement: Feedback always works
+
+The system SHALL allow feedback submission regardless of telemetry settings.
+
+#### Scenario: Feedback with telemetry disabled
+
+- **WHEN** user has disabled telemetry via `OPENSPEC_TELEMETRY=0`
+- **AND** user runs `openspec feedback "message"`
+- **THEN** the feedback is still submitted via `gh` CLI
+- **AND** telemetry events are not sent
+
+#### Scenario: Feedback in CI environment
+
+- **WHEN** `CI=true` is set in the environment
+- **AND** user runs `openspec feedback "message"`
+- **THEN** the feedback submission proceeds normally (if `gh` is available and authenticated)
+
+### Requirement: Error handling
+
+The system SHALL handle feedback submission errors gracefully.
+
+#### Scenario: gh CLI execution failure
+
+- **WHEN** `gh issue create` command fails
+- **THEN** the system displays the error output from `gh` CLI
+- **AND** exits with the same exit code as `gh`
+
+#### Scenario: Network failure
+
+- **WHEN** `gh` CLI reports network connectivity issues
+- **THEN** the system displays the error message from `gh`
+- **AND** suggests checking network connectivity
+- **AND** exits with non-zero code
+
+### Requirement: Feedback skill for agents
+
+The system SHALL provide a `/feedback` skill that guides agents through collecting and submitting user feedback.
+
+#### Scenario: Agent-initiated feedback
+
+- **WHEN** user invokes `/feedback` in an agent conversation
+- **THEN** the agent gathers context from the conversation
+- **AND** drafts a feedback issue with enriched content
+- **AND** anonymizes sensitive information
+- **AND** presents the draft to the user for approval
+- **AND** submits via `openspec feedback` command on user confirmation
+
+#### Scenario: Context enrichment
+
+- **WHEN** agent drafts feedback
+- **THEN** the agent includes relevant context such as:
+  - What task was being performed
+  - What worked well or poorly
+  - Specific friction points or praise
+
+#### Scenario: Anonymization
+
+- **WHEN** agent drafts feedback
+- **THEN** the agent removes or replaces:
+  - File paths with `<path>` or generic descriptions
+  - API keys, tokens, secrets with `<redacted>`
+  - Company/organization names with `<company>`
+  - Personal names with `<user>`
+  - Specific URLs with `<url>` unless public/relevant
+
+#### Scenario: User confirmation required
+
+- **WHEN** agent has drafted feedback
+- **THEN** the agent MUST show the complete draft to the user
+- **AND** ask for explicit approval before submitting
+- **AND** allow the user to request modifications
+- **AND** only submit after user confirms
+
+### Requirement: Shell completions
+
+The system SHALL provide shell completions for the feedback command.
+
+#### Scenario: Command completion
+
+- **WHEN** user types `openspec fee<TAB>`
+- **THEN** the shell completes to `openspec feedback`
+
+#### Scenario: Flag completion
+
+- **WHEN** user types `openspec feedback "msg" --<TAB>`
+- **THEN** the shell suggests available flags (`--body`)

openspec/changes/add-feedback-command/tasks.md

@@ -0,0 +1,30 @@
+## 1. Feedback Command
+
+- [x] 1.1 Create `src/commands/feedback.ts` with command implementation
+- [x] 1.2 Check `gh` CLI availability using platform-appropriate command (`which` on Unix/macOS, `where` on Windows)
+- [x] 1.3 Check GitHub auth status with `gh auth status`
+- [x] 1.4 Execute `gh issue create` with formatted title and body using `execFileSync` to prevent shell injection
+- [x] 1.5 Display issue URL returned by `gh` CLI
+- [x] 1.6 Register `feedback <message>` command in `src/cli/index.ts`
+- [x] 1.7 Ensure cross-platform compatibility (macOS, Linux, Windows)
+
+## 2. Shell Completions
+
+- [x] 2.1 Add `feedback` command to command registry
+- [x] 2.2 Regenerate completion scripts for all shells
+
+## 3. Feedback Skill
+
+- [x] 3.1 Create feedback skill template in `skill-templates.ts`
+- [x] 3.2 Document context gathering workflow
+- [x] 3.3 Document anonymization rules
+- [x] 3.4 Document user confirmation flow
+
+## 4. Testing
+
+- [x] 4.1 Add unit tests for feedback command (mock `gh` subprocess calls)
+- [x] 4.2 Add integration test for full feedback flow with mocked `gh` CLI
+- [x] 4.3 Test error handling for missing `gh` CLI
+- [x] 4.4 Test error handling for unauthenticated `gh` session
+- [x] 4.5 Test cross-platform `gh` CLI detection (verify `which` on Unix, `where` on Windows)
+- [x] 4.6 Test platform metadata includes correct value for Windows (win32)

openspec/changes/add-scaffold-command/proposal.md

@@ -1,11 +0,0 @@
-## Why
-Manual setup for new changes leads to formatting mistakes in spec deltas and slows agents who must recreate the same file skeletons for every proposal. A built-in scaffold command will generate compliant templates so assistants can focus on the change content instead of structure.
-
-## What Changes
-- Add an `openspec scaffold <change-id>` CLI command that creates a change directory with validated `proposal.md`, `tasks.md`, and spec delta templates.
-- Update CLI documentation and quick-reference guidance so agents discover the scaffold workflow before drafting files manually.
-- Add automated coverage (unit/integ tests) to ensure the command respects existing naming rules and generated Markdown passes validation.
-
-## Impact
-- Affected specs: `specs/cli-scaffold`
-- Affected code: `src/cli/index.ts`, `src/commands`, `docs/`

openspec/changes/add-scaffold-command/specs/cli-scaffold/spec.md

@@ -1,44 +0,0 @@
-## ADDED Requirements
-### Requirement: Scaffolding Command Registration
-The CLI SHALL expose an `openspec scaffold <change-id>` command that validates the change identifier before generating files.
-
-#### Scenario: Registering scaffold command
-- **WHEN** a user runs `openspec scaffold add-user-notifications`
-- **THEN** the CLI SHALL reject invalid identifiers (non kebab-case) before proceeding
-- **AND** display usage documentation via `openspec scaffold --help`
-- **AND** exit with code 0 after successful scaffolding
-
-### Requirement: Change Directory Structure
-The scaffold command SHALL create the standard change workspace with proposal, tasks, optional design, and delta directories laid out according to OpenSpec conventions.
-
-#### Scenario: Generating change workspace
-- **WHEN** scaffolding a new change with id `add-user-notifications`
-- **THEN** create `openspec/changes/add-user-notifications/`
-- **AND** generate `proposal.md`, `tasks.md`, and `design.md` (commented placeholder content) in that directory when missing
-- **AND** create `openspec/changes/add-user-notifications/specs/` ready for capability-specific deltas
-
-### Requirement: Template Content Guidance
-The scaffold command SHALL populate generated Markdown files with OpenSpec-compliant templates so authors can copy, edit, and pass validation without reformatting.
-
-#### Scenario: Populating proposal and tasks templates
-- **WHEN** the scaffold command writes `proposal.md`
-- **THEN** include the `## Why`, `## What Changes`, and `## Impact` headings with placeholder guidance text
-- **AND** ensure `tasks.md` starts with `## 1. Implementation` and numbered checklist items using `- [ ]` syntax
-- **AND** annotate optional sections (like `design.md`) with inline TODO comments so users understand when to keep or delete them
-
-### Requirement: Delta Spec Creation
-The scaffold command SHALL create at least one capability delta file with correctly formatted requirement and scenario placeholders that guide authors to enter the actual behavior.
-
-#### Scenario: Creating spec delta skeleton
-- **WHEN** scaffolding a change and the capability `cli-scaffold` is provided interactively or via flags
-- **THEN** generate `openspec/changes/add-user-notifications/specs/cli-scaffold/spec.md`
-- **AND** include `## ADDED Requirements` with at least one `### Requirement:` block and matching `#### Scenario:` entries that remind the author to replace placeholder text
-- **AND** ensure the generated delta passes `openspec validate add-user-notifications --strict` until the author edits it
-
-### Requirement: Idempotent Execution
-The scaffold command SHALL be safe to rerun, preserving user edits while filling in any missing managed sections.
-
-#### Scenario: Rerunning scaffold on existing change
-- **WHEN** the command is executed again for an existing change directory containing user-edited files
-- **THEN** leave existing content untouched except for managed placeholder regions or missing files that need creation
-- **AND** update the filesystem summary to highlight which files were skipped, created, or refreshed

openspec/changes/add-scaffold-command/tasks.md

@@ -1,11 +0,0 @@
-## 1. CLI scaffolding command
-- [ ] 1.1 Register an `openspec scaffold` command in the CLI entrypoint with `change-id` argument validation.
-- [ ] 1.2 Implement generator logic that creates the change directory structure plus default `proposal.md`, `tasks.md`, and delta spec skeletons without overwriting existing populated files.
-
-## 2. Templates and documentation
-- [ ] 2.1 Surface copy/paste templates and scaffold usage in the top-level quick reference for `openspec/AGENTS.md`.
-- [ ] 2.2 Refresh other CLI docs (`docs/`, README) to mention the scaffold workflow and link to instructions.
-
-## 3. Test coverage
-- [ ] 3.1 Add unit tests covering name validation, file generation, and idempotent reruns.
-- [ ] 3.2 Add integration coverage ensuring generated files pass `openspec validate --strict` without manual edits.

openspec/changes/add-verify-skill/design.md

@@ -0,0 +1,96 @@
+# Design: Add /opsx:verify Skill
+
+## Architecture Decision: Dynamic Generation via Setup Command
+
+### Context
+
+All existing opsx experimental skills (explore, new, continue, apply, ff, sync, archive) are dynamically generated when users run `openspec artifact-experimental-setup`. They are not manually created files checked into the repository.
+
+### Decision
+
+**Integrate verify into the existing artifact-experimental-setup system rather than creating static skill files.**
+
+### Rationale
+
+1. **Consistency**: All 7 existing opsx skills follow this pattern. Adding verify as the 8th skill should follow the same architecture.
+
+2. **Maintainability**: Template functions in `skill-templates.ts` are the single source of truth. Changes to skill definitions automatically propagate to all users when they re-run setup.
+
+3. **Distribution**: Users get the verify skill automatically when running `openspec artifact-experimental-setup`, just like all other opsx skills. No special installation steps needed.
+
+4. **Versioning**: Skills are generated from the installed npm package version, ensuring consistency between CLI version and skill behavior.
+
+### Implementation Approach
+
+#### 1. Template Functions
+
+Add two template functions to `src/core/templates/skill-templates.ts`:
+
+```typescript
+export function getVerifyChangeSkillTemplate(): SkillTemplate
+export function getOpsxVerifyCommandTemplate(): CommandTemplate
+```
+
+These return the skill definition (for Agent Skills) and slash command definition (for explicit invocation).
+
+#### 2. Setup Integration
+
+Update `artifactExperimentalSetupCommand()` in `src/commands/artifact-workflow.ts`:
+
+- Import both template functions
+- Add verify to the `skills` array (position 8)
+- Add verify to the `commands` array (position 8)
+- Update help text to list `/opsx:verify`
+
+#### 3. Generated Artifacts
+
+When users run `openspec artifact-experimental-setup`, the command creates:
+
+- `.claude/skills/openspec-verify-change/SKILL.md` - Agent Skills format
+- `.claude/commands/opsx/verify.md` - Slash command format
+
+Both are generated from the template functions, with YAML frontmatter automatically added.
+
+### Alternatives Considered
+
+**Alternative 1: Static skill files in repository**
+
+Create `.claude/skills/openspec-verify-change/SKILL.md` as a static file in the OpenSpec repository.
+
+**Rejected because:**
+- Inconsistent with all other opsx skills
+- Requires users to manually copy/update files
+- Versioning becomes complicated (repo version vs installed package version)
+- Breaks the established pattern
+
+**Alternative 2: Separate verify setup command**
+
+Add `openspec setup-verify` as a separate command.
+
+**Rejected because:**
+- Fragments the setup experience
+- Users would need to run multiple commands
+- Doesn't scale if we add more skills in the future
+- Goes against the "setup once, get everything" philosophy
+
+### Trade-offs
+
+**Advantages:**
+- Consistent with existing architecture
+- Zero additional setup burden for users
+- Easy to update and maintain
+- Automatic version compatibility
+
+**Disadvantages:**
+- Slightly more complex initial implementation (template functions + integration)
+- Requires understanding the setup system (but that's already documented)
+
+### Verification
+
+The implementation correctly follows this design if:
+
+1. Both template functions exist in `skill-templates.ts`
+2. Verify appears in both skills and commands arrays in `artifact-workflow.ts`
+3. Help text mentions `/opsx:verify`
+4. Running `openspec artifact-experimental-setup` generates both skill and command files
+5. Build succeeds with no TypeScript errors

openspec/changes/add-verify-skill/proposal.md

@@ -0,0 +1,48 @@
+# Change: Add /opsx:verify Skill
+
+## Why
+
+Users need a way to validate that their implementation actually matches what was requested before archiving a change. Currently, there's no systematic way to check:
+- Whether all tasks are truly complete
+- Whether the implementation covers all spec requirements and scenarios
+- Whether the implementation follows the design decisions
+- Whether the code is coherent and makes sense
+
+A user requested: "Can we get a :verify that will ensure that the implementation matches what was requested?"
+
+## What Changes
+
+- Add `getVerifyChangeSkillTemplate()` function to `skill-templates.ts`
+- Add `getOpsxVerifyCommandTemplate()` function to `skill-templates.ts`
+- Integrate verify skill into `artifactExperimentalSetupCommand` in `artifact-workflow.ts`
+- Add verify to the skills and commands arrays in the setup command
+- Update help text to include `/opsx:verify` in the list of available commands
+- Create `opsx-verify-skill` capability spec
+
+## Verification Dimensions
+
+The skill verifies across three dimensions:
+
+1. **Completeness** - Are all tasks done? Are all specs addressed?
+2. **Correctness** - Does the implementation match specs? Are scenarios covered?
+3. **Coherence** - Does the implementation make sense? Does it follow design.md?
+
+## Output Format
+
+Produces a prioritized report with:
+- Summary scorecard (tasks, specs, design adherence)
+- Critical issues first (must fix before archive)
+- Warnings second (should fix)
+- Suggestions third (nice to have)
+- Actionable fix recommendations for each issue
+
+## Impact
+
+- Affected specs: New `opsx-verify-skill` spec
+- Affected code:
+  - `src/core/templates/skill-templates.ts` - Added 2 new template functions
+  - `src/commands/artifact-workflow.ts` - Integrated verify into experimental setup
+- Generated artifacts: When users run `openspec artifact-experimental-setup`:
+  - Creates `.claude/skills/openspec-verify-change/SKILL.md`
+  - Creates `.claude/commands/opsx/verify.md`
+- Related skills: Works alongside `/opsx:apply` and before `/opsx:archive`

openspec/changes/add-verify-skill/specs/opsx-verify-skill/spec.md

@@ -0,0 +1,190 @@
+# opsx-verify-skill Specification
+
+## Purpose
+Defines the agent skill for verifying that implementation matches change artifacts (specs, tasks, design).
+
+## ADDED Requirements
+
+### Requirement: Verify Skill Invocation
+The system SHALL provide an `/opsx:verify` skill that validates implementation against change artifacts.
+
+#### Scenario: Verify with change name provided
+- **WHEN** agent executes `/opsx:verify <change-name>`
+- **THEN** the agent verifies implementation for that specific change
+- **AND** produces a verification report
+
+#### Scenario: Verify without change name
+- **WHEN** agent executes `/opsx:verify` without a change name
+- **THEN** the agent prompts user to select from available changes
+- **AND** shows only changes that have implementation tasks
+
+#### Scenario: Change has no tasks
+- **WHEN** selected change has no tasks.md or tasks are empty
+- **THEN** the agent reports "No tasks to verify"
+- **AND** suggests running `/opsx:continue` to create tasks
+
+### Requirement: Completeness Verification
+The agent SHALL verify that all required work has been completed.
+
+#### Scenario: Task completion check
+- **WHEN** verifying completeness
+- **THEN** the agent reads tasks.md
+- **AND** counts tasks marked `- [x]` (complete) vs `- [ ]` (incomplete)
+- **AND** reports completion status with specific incomplete tasks listed
+
+#### Scenario: Spec coverage check
+- **WHEN** verifying completeness
+- **AND** delta specs exist in `openspec/changes/<name>/specs/`
+- **THEN** the agent extracts all requirements from delta specs
+- **AND** searches codebase for implementation of each requirement
+- **AND** reports which requirements appear to have implementation vs which are missing
+
+#### Scenario: All tasks complete
+- **WHEN** all tasks are marked complete
+- **THEN** report "Tasks: N/N complete"
+- **AND** mark completeness dimension as passed
+
+#### Scenario: Incomplete tasks found
+- **WHEN** some tasks are incomplete
+- **THEN** report "Tasks: X/N complete"
+- **AND** list each incomplete task
+- **AND** mark as CRITICAL issue
+- **AND** suggest: "Complete remaining tasks or mark as done if already implemented"
+
+### Requirement: Correctness Verification
+The agent SHALL verify that implementation matches the specifications.
+
+#### Scenario: Requirement implementation mapping
+- **WHEN** verifying correctness
+- **THEN** for each requirement in delta specs:
+  - Search codebase for implementation
+  - Identify relevant files and line numbers
+  - Assess whether implementation satisfies the requirement
+
+#### Scenario: Scenario coverage check
+- **WHEN** verifying correctness
+- **THEN** for each scenario in delta specs:
+  - Check if the scenario's conditions are handled in code
+  - Check if tests exist that cover the scenario
+  - Report coverage status
+
+#### Scenario: Implementation matches spec
+- **WHEN** implementation appears to satisfy a requirement
+- **THEN** report which files/lines implement it
+- **AND** mark requirement as covered
+
+#### Scenario: Implementation diverges from spec
+- **WHEN** implementation exists but doesn't match spec intent
+- **THEN** report the divergence as WARNING
+- **AND** explain what differs
+- **AND** suggest: either update implementation or update spec to match reality
+
+#### Scenario: Missing implementation
+- **WHEN** no implementation found for a requirement
+- **THEN** report as CRITICAL issue
+- **AND** suggest: "Implement requirement X" with guidance on what's needed
+
+### Requirement: Coherence Verification
+The agent SHALL verify that implementation is sensible and follows design decisions.
+
+#### Scenario: Design.md adherence check
+- **WHEN** verifying coherence
+- **AND** design.md exists for the change
+- **THEN** extract key decisions from design.md
+- **AND** verify implementation follows those decisions
+- **AND** report any deviations
+
+#### Scenario: No design.md
+- **WHEN** verifying coherence
+- **AND** no design.md exists
+- **THEN** skip design adherence check
+- **AND** note "No design.md to verify against"
+
+#### Scenario: Design decision followed
+- **WHEN** implementation follows a design decision
+- **THEN** report as confirmed
+- **AND** cite evidence from code
+
+#### Scenario: Design decision violated
+- **WHEN** implementation contradicts a design decision
+- **THEN** report as WARNING
+- **AND** explain the contradiction
+- **AND** suggest: either update implementation or update design.md
+
+#### Scenario: Code pattern consistency
+- **WHEN** verifying coherence
+- **THEN** check if new code follows existing project patterns
+- **AND** flag any significant deviations as suggestions
+
+### Requirement: Verification Report Format
+The agent SHALL produce a structured, prioritized report.
+
+#### Scenario: Report summary
+- **WHEN** verification completes
+- **THEN** display summary scorecard:
+  ```
+  ## Verification Report: <change-name>
+
+  ### Summary
+  | Dimension    | Status   |
+  |--------------|----------|
+  | Completeness | X/Y      |
+  | Correctness  | X/Y      |
+  | Coherence    | Followed |
+  ```
+
+#### Scenario: Issue prioritization
+- **WHEN** issues are found
+- **THEN** group and display in priority order:
+  1. CRITICAL - Must fix before archive (missing implementation, incomplete tasks)
+  2. WARNING - Should fix (divergence from spec/design, missing tests)
+  3. SUGGESTION - Nice to fix (pattern inconsistencies, minor improvements)
+
+#### Scenario: Actionable recommendations
+- **WHEN** reporting an issue
+- **THEN** include specific, actionable fix recommendation
+- **AND** reference relevant files and line numbers where applicable
+- **AND** avoid vague suggestions like "consider reviewing"
+
+#### Scenario: All checks pass
+- **WHEN** no issues found across all dimensions
+- **THEN** display:
+  ```
+  All checks passed. Ready for archive.
+  ```
+
+#### Scenario: Critical issues found
+- **WHEN** CRITICAL issues exist
+- **THEN** display:
+  ```
+  X critical issue(s) found. Fix before archiving.
+  ```
+- **AND** do NOT suggest running archive
+
+#### Scenario: Only warnings/suggestions
+- **WHEN** no CRITICAL issues but warnings exist
+- **THEN** display:
+  ```
+  No critical issues. Y warning(s) to consider.
+  Ready for archive (with noted improvements).
+  ```
+
+### Requirement: Flexible Artifact Handling
+The agent SHALL gracefully handle changes with varying artifact completeness.
+
+#### Scenario: Minimal change (tasks only)
+- **WHEN** change has only tasks.md
+- **THEN** verify task completion only
+- **AND** skip spec and design checks
+- **AND** note which checks were skipped
+
+#### Scenario: Change with specs but no design
+- **WHEN** change has tasks.md and delta specs but no design.md
+- **THEN** verify completeness and correctness
+- **AND** skip design adherence
+- **AND** still check code coherence against project patterns
+
+#### Scenario: Full change (all artifacts)
+- **WHEN** change has proposal, design, specs, and tasks
+- **THEN** perform all verification checks
+- **AND** cross-reference artifacts for consistency

openspec/changes/add-verify-skill/tasks.md

@@ -0,0 +1,15 @@
+# Tasks: Add /opsx:verify Skill
+
+## 1. Skill Template Functions
+- [x] 1.1 Add `getVerifyChangeSkillTemplate()` to skill-templates.ts
+- [x] 1.2 Add `getOpsxVerifyCommandTemplate()` to skill-templates.ts
+
+## 2. Integration with artifact-experimental-setup
+- [x] 2.1 Import verify template functions in artifact-workflow.ts
+- [x] 2.2 Add verify to skills array in artifactExperimentalSetupCommand
+- [x] 2.3 Add verify to commands array in artifactExperimentalSetupCommand
+- [x] 2.4 Add verify to help text output
+
+## 3. Verification (Build & Test)
+- [x] 3.1 Verify TypeScript compilation succeeds
+- [x] 3.2 Verify all 8 skills are now included (was 7, now 8)

openspec/changes/archive/2025-11-06-add-shell-completions/design.md

@@ -0,0 +1,525 @@
+# Shell Completions Design
+
+## Overview
+
+This design establishes a plugin-based architecture for shell completions that prioritizes clean TypeScript patterns, scalability, and maintainability. The system separates concerns between shell-specific generation logic, dynamic completion data providers, and installation automation.
+
+**Scope:** This proposal implements **Zsh completion only** (with Oh My Zsh priority). The architecture is designed to support bash, fish, and PowerShell in future proposals.
+
+## Native Shell Completion Behaviors
+
+**Design Philosophy:** We integrate with each shell's native completion system rather than attempting to customize or unify behaviors. This ensures familiar UX for users and reduces maintenance complexity.
+
+**Note:** While all four shell behaviors are documented below for architectural reference, **only Zsh is implemented in this proposal**. Bash, Fish, and PowerShell are documented to guide future implementations.
+
+### Bash Completion Behavior
+
+**Interaction Pattern:**
+- **Single TAB:** Completes if only one match exists, otherwise does nothing
+- **Double TAB (TAB TAB):** Displays all possible completions as a list
+- **Type more characters + TAB:** Narrows matches and completes or shows refined list
+
+**OpenSpec Integration:**
+```bash
+# After installing: openspec completion install bash
+openspec val<TAB>           # Completes to "openspec validate"
+openspec validate <TAB><TAB>  # Shows: --all --changes --specs --strict --json [change-ids] [spec-ids]
+openspec show add-<TAB><TAB>  # Shows all changes starting with "add-"
+```
+
+**Implementation:** Uses bash-completion framework with `_init_completion`, `compgen`, and `COMPREPLY` array.
+
+### Zsh Completion Behavior (with Oh My Zsh)
+
+**Interaction Pattern:**
+- **Single TAB:** Shows interactive menu with all matches immediately
+- **TAB / Arrow Keys:** Navigate through completion options
+- **Enter:** Selects highlighted option
+- **Ctrl+C / Esc:** Cancels completion menu
+
+**OpenSpec Integration:**
+```zsh
+# After installing: openspec completion install zsh
+openspec val<TAB>    # Shows menu with "validate" and "view" highlighted
+openspec show <TAB>  # Shows menu with all change IDs and spec IDs, categorized
+```
+
+**Implementation:** Uses Zsh completion system with `_arguments`, `_describe`, and `compadd` built-ins. Oh My Zsh provides enhanced menu styling automatically.
+
+### Fish Completion Behavior
+
+**Interaction Pattern:**
+- **As-you-type:** Gray suggestions appear automatically in real-time
+- **Right Arrow / Ctrl+F:** Accepts the suggestion
+- **TAB:** Shows menu with all matches if multiple exist
+- **TAB again:** Cycles through options or navigates menu
+- **Enter:** Accepts current selection
+
+**OpenSpec Integration:**
+```fish
+# After installing: openspec completion install fish
+openspec val       # Gray suggestion shows "validate" immediately
+openspec show a    # Real-time suggestions for changes starting with "a"
+openspec <TAB>     # Shows all commands with descriptions in paged menu
+```
+
+**Implementation:** Uses Fish's declarative `complete -c` syntax. Completions are auto-loaded from `~/.config/fish/completions/`.
+
+### PowerShell Completion Behavior
+
+**Interaction Pattern:**
+- **TAB:** Cycles forward through completions one at a time (inline replacement)
+- **Shift+TAB:** Cycles backward through completions
+- **Ctrl+Space:** Shows IntelliSense-style menu (PSReadLine v2.2+)
+- **Arrow Keys:** Navigate menu if shown
+
+**OpenSpec Integration:**
+```powershell
+# After installing: openspec completion install powershell
+openspec val<TAB>       # Cycles: validate → view → validate
+openspec show <TAB>     # Cycles through change IDs one by one
+openspec <Ctrl+Space>   # Shows IntelliSense menu with all commands
+```
+
+**Implementation:** Uses `Register-ArgumentCompleter` with custom script block that returns `[System.Management.Automation.CompletionResult]` objects.
+
+### Comparison Table
+
+| Shell       | Trigger         | Display Style          | Navigation           | Selection      |
+|-------------|-----------------|------------------------|----------------------|----------------|
+| Bash        | TAB TAB         | List (printed once)    | Type more + TAB      | Auto-complete  |
+| Zsh         | TAB             | Interactive menu       | TAB/Arrows           | Enter          |
+| Fish        | TAB/Auto        | Real-time + menu       | TAB/Arrows           | Enter/Right    |
+| PowerShell  | TAB             | Inline cycling         | TAB/Shift+TAB        | Stop cycling   |
+
+**Key Insight:** Each shell's completion UX reflects its design philosophy. We respect these conventions rather than forcing uniformity.
+
+## Architectural Principles
+
+### 1. Plugin-Based Generator System
+
+Each shell has unique completion syntax and conventions. Rather than creating a monolithic generator with branching logic, we use a plugin pattern where each shell implements a common interface:
+
+```typescript
+interface CompletionGenerator {
+  generate(): string;
+  getInstallPath(): string;
+  getConfigFile(): string;
+}
+```
+
+**Benefits:**
+- New shells can be added without modifying existing generators
+- Shell-specific logic is isolated and testable
+- Type safety ensures all generators implement required methods
+- Easy to maintain and understand (single responsibility per generator)
+
+**Implementation Classes:**
+- `ZshCompletionGenerator` - Uses Zsh's `_arguments` and `_describe` functions
+- `BashCompletionGenerator` - Uses `_init_completion` and `compgen` built-ins
+- `FishCompletionGenerator` - Uses `complete -c` declarative syntax
+- `PowerShellCompletionGenerator` - Uses `Register-ArgumentCompleter` cmdlet
+
+### 2. Centralized Command Registry
+
+Shell completions must stay synchronized with actual CLI commands. To avoid duplication and drift, we maintain a single source of truth:
+
+```typescript
+type CommandDefinition = {
+  name: string;
+  description: string;
+  flags: FlagDefinition[];
+  acceptsChangeId: boolean;
+  acceptsSpecId: boolean;
+  subcommands?: CommandDefinition[];
+};
+
+const COMMAND_REGISTRY: CommandDefinition[] = [
+  {
+    name: 'init',
+    description: 'Initialize OpenSpec in your project',
+    flags: [
+      { name: '--tools', description: 'Configure AI tools non-interactively', hasValue: true }
+    ],
+    acceptsChangeId: false,
+    acceptsSpecId: false
+  },
+  // ... all other commands
+];
+```
+
+**Benefits:**
+- All generators consume the same command definitions
+- Adding a new command automatically propagates to all shells
+- Flag changes only need to be made in one place
+- Type safety prevents typos and missing fields
+- Easier to test (mock the registry)
+
+**TypeScript Sugar:**
+- Use `const` assertions for readonly registry
+- Leverage discriminated unions for command types
+- Use `satisfies` operator to ensure registry matches interface
+
+### 3. Dynamic Completion Provider
+
+Change and spec IDs are project-specific and discovered at runtime. A dedicated provider encapsulates this logic:
+
+```typescript
+class CompletionProvider {
+  private changeCache: { ids: string[]; timestamp: number } | null = null;
+  private specCache: { ids: string[]; timestamp: number } | null = null;
+  private readonly CACHE_TTL_MS = 2000;
+
+  async getChangeIds(): Promise<string[]> {
+    if (this.changeCache && Date.now() - this.changeCache.timestamp < this.CACHE_TTL_MS) {
+      return this.changeCache.ids;
+    }
+
+    const ids = await discoverActiveChangeIds();
+    this.changeCache = { ids, timestamp: Date.now() };
+    return ids;
+  }
+
+  async getSpecIds(): Promise<string[]> {
+    // Similar caching logic
+  }
+
+  isOpenSpecProject(): boolean {
+    // Check for openspec/ directory
+  }
+}
+```
+
+**Benefits:**
+- Caching reduces file system overhead during rapid tab completion
+- Encapsulates project detection logic
+- Easy to test with mocked file system
+- Shared across all shell generators
+
+**Design Decisions:**
+- 2-second cache TTL balances freshness with performance
+- Cache per-process (not persistent) to avoid stale data across sessions
+- Graceful degradation when outside OpenSpec projects
+
+### 4. Separate Installation Logic
+
+Installation involves shell configuration file manipulation, which differs from generation. We separate this concern:
+
+```typescript
+interface CompletionInstaller {
+  install(): Promise<InstallResult>;
+  uninstall(): Promise<UninstallResult>;
+  isInstalled(): Promise<boolean>;
+}
+```
+
+**Shell-Specific Installers:**
+- `ZshInstaller` - Handles both Oh My Zsh (custom completions) and standard Zsh (fpath)
+- `BashInstaller` - Detects completion directories and sources from `.bashrc`
+- `FishInstaller` - Writes to `~/.config/fish/completions/` (auto-loaded)
+- `PowerShellInstaller` - Appends to PowerShell profile
+
+**Benefits:**
+- Installation logic doesn't pollute generator code
+- Can test installation without generating completion scripts
+- Easier to handle edge cases (missing directories, permissions, already installed)
+
+### 5. Type-Safe Shell Detection
+
+We use TypeScript's literal types and type guards for shell detection:
+
+```typescript
+type SupportedShell = 'bash' | 'zsh' | 'fish' | 'powershell';
+
+function detectShell(): SupportedShell {
+  const shellPath = process.env.SHELL || '';
+  const shellName = path.basename(shellPath).toLowerCase();
+
+  // PowerShell normalization
+  if (shellName === 'pwsh' || shellName === 'powershell') {
+    return 'powershell';
+  }
+
+  const supported: SupportedShell[] = ['bash', 'zsh', 'fish', 'powershell'];
+  if (supported.includes(shellName as SupportedShell)) {
+    return shellName as SupportedShell;
+  }
+
+  throw new Error(`Shell '${shellName}' is not supported. Supported: ${supported.join(', ')}`);
+}
+```
+
+**Benefits:**
+- Compile-time type checking prevents invalid shell names
+- Easy to add new shells (add to union type)
+- Type narrowing works in switch statements
+- Clear error messages for unsupported shells
+
+### 6. Factory Pattern for Instantiation
+
+A factory function selects the appropriate generator/installer based on shell type:
+
+```typescript
+function createGenerator(shell: SupportedShell, provider: CompletionProvider): CompletionGenerator {
+  switch (shell) {
+    case 'bash': return new BashCompletionGenerator(COMMAND_REGISTRY, provider);
+    case 'zsh': return new ZshCompletionGenerator(COMMAND_REGISTRY, provider);
+    case 'fish': return new FishCompletionGenerator(COMMAND_REGISTRY, provider);
+    case 'powershell': return new PowerShellCompletionGenerator(COMMAND_REGISTRY, provider);
+  }
+}
+```
+
+**Benefits:**
+- Single point of instantiation
+- Type safety ensures exhaustive switch (TypeScript error if shell type missing)
+- Easy to inject dependencies (registry, provider)
+
+## Command Structure
+
+**This Proposal (Zsh-only):**
+```
+openspec completion
+├── zsh               # Generate Zsh completion script
+├── install [shell]   # Install Zsh completion (auto-detects or explicit zsh)
+└── uninstall [shell] # Remove Zsh completion (auto-detects or explicit zsh)
+```
+
+**Future (after follow-up proposals):**
+```
+openspec completion
+├── bash              # Generate Bash completion script (future)
+├── zsh               # Generate Zsh completion script (this proposal)
+├── fish              # Generate Fish completion script (future)
+├── powershell        # Generate PowerShell completion script (future)
+├── install [shell]   # Install completion (auto-detects or explicit shell)
+└── uninstall [shell] # Remove completion (auto-detects or explicit shell)
+```
+
+## File Organization
+
+**This Proposal (Zsh-only):**
+```
+src/
+├── commands/
+│   └── completion.ts              # CLI command registration (zsh, install, uninstall)
+├── core/
+│   └── completions/
+│       ├── types.ts               # Interfaces: CompletionGenerator, CommandDefinition, etc.
+│       ├── command-registry.ts    # Single source of truth for OpenSpec commands
+│       ├── completion-provider.ts # Dynamic change/spec ID discovery with caching
+│       ├── factory.ts             # Factory for instantiating Zsh generator/installer
+│       ├── generators/
+│       │   └── zsh-generator.ts   # Zsh completion script generator
+│       └── installers/
+│           └── zsh-installer.ts   # Handles Oh My Zsh + standard Zsh installation
+└── utils/
+    └── shell-detection.ts         # Shell detection (returns 'zsh' or throws)
+```
+
+**Future additions (bash, fish, powershell):**
+- `generators/bash-generator.ts`, `fish-generator.ts`, `powershell-generator.ts`
+- `installers/bash-installer.ts`, `fish-installer.ts`, `powershell-installer.ts`
+- Update `shell-detection.ts` to support additional shell types
+
+## Oh My Zsh Priority
+
+Zsh implementation prioritizes Oh My Zsh because:
+1. **Popularity** - Oh My Zsh is the most popular Zsh configuration framework
+2. **Convention** - Has standard completion directory (`~/.oh-my-zsh/custom/completions/`)
+3. **Detection** - Easy to detect via `$ZSH` environment variable
+4. **Fallback** - Standard Zsh support provides compatibility when Oh My Zsh isn't installed
+
+**Installation Strategy:**
+```typescript
+if (isOhMyZshInstalled()) {
+  // Install to ~/.oh-my-zsh/custom/completions/_openspec
+  // Automatically loaded by Oh My Zsh
+} else {
+  // Install to ~/.zsh/completions/_openspec
+  // Update ~/.zshrc with fpath and compinit if needed
+}
+```
+
+## Caching Strategy
+
+Dynamic completions cache results for 2 seconds to balance freshness with performance:
+
+**Why 2 seconds?**
+- Typical tab completion sessions last < 2 seconds
+- Prevents repeated file system scans during rapid tabbing
+- Short enough to feel "live" when changes/specs are added
+- Automatic per-process expiration (no stale data across sessions)
+
+**Implementation:**
+```typescript
+private changeCache: { ids: string[]; timestamp: number } | null = null;
+private readonly CACHE_TTL_MS = 2000;
+
+if (this.changeCache && Date.now() - this.changeCache.timestamp < this.CACHE_TTL_MS) {
+  return this.changeCache.ids; // Use cached
+}
+// Refresh cache
+```
+
+## Error Handling Philosophy
+
+Completions should degrade gracefully rather than break workflows:
+
+1. **Unsupported shell** - Clear error with list of supported shells
+2. **Not in OpenSpec project** - Skip dynamic completions, only offer static commands
+3. **Permission errors** - Suggest alternative installation methods
+4. **Missing config directories** - Auto-create with user notification
+5. **Already installed** - Offer to reinstall/update
+6. **Not installed (during uninstall)** - Exit gracefully with informational message
+
+## Testing Strategy
+
+Each component is independently testable:
+
+1. **Unit Tests**
+   - Shell detection with mocked `$SHELL` environment variable
+   - Generator output verification (regex pattern matching)
+   - Completion provider caching behavior
+   - Command registry structure validation
+
+2. **Integration Tests**
+   - Installation to temporary test directories
+   - Configuration file modifications
+   - End-to-end command flow (generate → install → verify)
+
+3. **Manual Testing**
+   - Real shell environments (Oh My Zsh, Bash, Fish, PowerShell)
+   - Tab completion behavior in OpenSpec projects
+   - Dynamic change/spec ID suggestions
+   - Installation/uninstallation workflows
+
+## TypeScript Sugar Patterns
+
+### 1. Const Assertions for Immutable Data
+```typescript
+const COMMAND_REGISTRY = [
+  { name: 'init', ... },
+  { name: 'list', ... }
+] as const;
+```
+
+### 2. Discriminated Unions for Command Types
+```typescript
+type Command =
+  | { type: 'simple'; name: string }
+  | { type: 'with-subcommands'; name: string; subcommands: Command[] };
+```
+
+### 3. Template Literal Types for Strings
+```typescript
+type ShellConfigFile = `~/.${SupportedShell}rc` | `~/.${SupportedShell}_profile`;
+```
+
+### 4. Satisfies Operator for Type Validation
+```typescript
+const config = {
+  shell: 'zsh',
+  path: '~/.zshrc'
+} satisfies ShellConfig;
+```
+
+### 5. Optional Chaining and Nullish Coalescing
+```typescript
+const path = process.env.ZSH ?? `${os.homedir()}/.oh-my-zsh`;
+```
+
+### 6. Async/Await with Promise.all for Parallel Operations
+```typescript
+const [changes, specs] = await Promise.all([
+  provider.getChangeIds(),
+  provider.getSpecIds()
+]);
+```
+
+## Scalability Considerations
+
+### Adding a New Shell
+
+1. Define shell in `SupportedShell` union type
+2. Create generator class implementing `CompletionGenerator`
+3. Create installer class implementing `CompletionInstaller`
+4. Add cases to factory functions
+5. Add command registration in CLI
+6. Write tests
+
+**TypeScript will enforce** that all switch statements are updated (exhaustiveness checking).
+
+### Adding a New Command
+
+1. Add to `COMMAND_REGISTRY` with appropriate metadata
+2. All generators automatically include it
+3. Update tests to verify new command appears
+
+### Changing Completion Behavior
+
+Dynamic completion logic is centralized in `CompletionProvider`, making behavior changes trivial without touching shell-specific code.
+
+## Trade-offs and Decisions
+
+### Decision: Separate Generators vs. Template Engine
+
+**Chosen:** Separate generator classes per shell
+
+**Alternative:** Template engine with shell-specific templates
+
+**Rationale:**
+- Shell completion syntax is fundamentally different (not just text substitution)
+- Type safety is better with classes than templates
+- Logic complexity (caching, dynamic completions) doesn't fit template paradigm
+- Easier to debug and test dedicated classes
+
+### Decision: 2-Second Cache TTL
+
+**Chosen:** 2-second cache
+
+**Alternatives:** No cache (slow), longer cache (stale), persistent cache (complex)
+
+**Rationale:**
+- Balances performance with freshness
+- Matches typical user interaction patterns
+- Simple implementation (no invalidation complexity)
+- Automatic cleanup on process exit
+
+### Decision: Oh My Zsh Detection
+
+**Chosen:** Check `$ZSH` env var first, then `~/.oh-my-zsh/` directory
+
+**Rationale:**
+- `$ZSH` is set by Oh My Zsh initialization (reliable)
+- Directory check is fallback for non-interactive scenarios
+- Standard Zsh serves as ultimate fallback
+
+### Decision: Installation Automation vs. Manual Instructions
+
+**Chosen:** Automated installation with install/uninstall commands
+
+**Alternative:** Generate script and provide manual installation instructions
+
+**Rationale:**
+- Better user experience (one command vs. multiple manual steps)
+- Reduces errors from manual configuration
+- Aligns with user expectations for modern CLI tools
+- Still supports manual workflow via script generation to stdout
+
+## Future Enhancements
+
+1. **Contextual Flag Completion** - Suggest only valid flags for current command
+2. **Fuzzy Matching** - Allow partial matching for change/spec IDs
+3. **Rich Descriptions** - Include "why" section in completion suggestions (shell-dependent)
+4. **Completion Stats** - Track completion usage for analytics
+5. **Custom Completion Hooks** - Allow projects to extend completions
+6. **MCP Integration** - Provide completions via Model Context Protocol
+
+## References
+
+- [Bash Programmable Completion](https://www.gnu.org/software/bash/manual/html_node/Programmable-Completion.html)
+- [Zsh Completion System](https://zsh.sourceforge.io/Doc/Release/Completion-System.html)
+- [Fish Completions](https://fishshell.com/docs/current/completions.html)
+- [PowerShell Argument Completers](https://docs.microsoft.com/en-us/powershell/module/microsoft.powershell.core/register-argumentcompleter)
+- [Oh My Zsh Custom Completions](https://github.com/ohmyzsh/ohmyzsh/wiki/Customization#adding-custom-completions)

openspec/changes/archive/2025-11-06-add-shell-completions/proposal.md

@@ -0,0 +1,29 @@
+# Add Shell Completions
+
+## Why
+
+OpenSpec CLI commands lack shell completion, forcing users to remember all commands, subcommands, flags, and change/spec IDs manually. This creates friction during daily use and slows developer workflows. Shell completions are a standard expectation for modern CLI tools and significantly improve user experience through:
+- Faster command discovery via tab completion
+- Reduced cognitive load by removing memorization requirements
+- Fewer typos through validated suggestions
+- Professional polish expected of production-grade tools
+
+## What Changes
+
+This change adds shell completion support for the OpenSpec CLI, starting with **Zsh (including Oh My Zsh)** and establishing a scalable architecture for future shells (bash, fish, PowerShell). The implementation provides:
+
+1. **New `openspec completion` command** with Zsh generation and installation/uninstallation capabilities
+2. **Native Zsh integration** that respects standard Zsh tab completion behavior (single-TAB menu navigation)
+3. **Dynamic completion providers** that discover active changes and specs from the current project
+4. **Plugin-based architecture** using TypeScript interfaces for easy extension to additional shells in future proposals
+5. **Installation automation** for Oh My Zsh (priority) and standard Zsh configurations
+6. **Context-aware suggestions** that only activate within OpenSpec-enabled projects
+
+The architecture emphasizes clean TypeScript patterns, composable generators, separation of concerns between shell-specific logic and shared completion data providers, and integration with native shell completion systems. Other shells (bash, fish, PowerShell) are architecturally documented but not implemented in this proposal—they will be added in follow-up changes.
+
+## Deltas
+
+### Delta: New CLI completion specification
+- **Spec:** cli-completion
+- **Operation:** ADDED
+- **Description:** Defines requirements for the new `openspec completion` command including generation, installation, and shell-specific behaviors for Oh My Zsh, bash, fish, and PowerShell.

openspec/changes/archive/2025-11-06-add-shell-completions/specs/cli-completion/spec.md

@@ -0,0 +1,300 @@
+# CLI Completion Specification
+
+## Purpose
+
+The `openspec completion` command SHALL provide shell completion functionality for all OpenSpec CLI commands, flags, and dynamic values (change IDs, spec IDs), with support for Zsh (including Oh My Zsh) and a scalable architecture ready for future shells (bash, fish, PowerShell). The completion system SHALL integrate with Zsh's native completion behavior rather than attempting to customize the user experience.
+
+## ADDED Requirements
+
+### Requirement: Native Shell Behavior Integration
+
+The completion system SHALL respect and integrate with Zsh's native completion patterns and user interaction model.
+
+#### Scenario: Zsh native completion
+
+- **WHEN** generating Zsh completion scripts
+- **THEN** use Zsh completion system with `_arguments`, `_describe`, and `compadd`
+- **AND** completions SHALL trigger on single TAB (standard Zsh behavior)
+- **AND** display as an interactive menu that users navigate with TAB/arrow keys
+- **AND** support Oh My Zsh's enhanced menu styling automatically
+
+#### Scenario: No custom UX patterns
+
+- **WHEN** implementing Zsh completion
+- **THEN** do NOT attempt to customize completion trigger behavior
+- **AND** do NOT override Zsh-specific navigation patterns
+- **AND** ensure completions feel native to experienced Zsh users
+
+### Requirement: Command Structure
+
+The completion command SHALL follow a subcommand pattern for generating and managing completion scripts.
+
+#### Scenario: Available subcommands
+
+- **WHEN** user executes `openspec completion --help`
+- **THEN** display available subcommands:
+  - `zsh` - Generate Zsh completion script
+  - `install [shell]` - Install completion for Zsh (auto-detects or requires explicit shell)
+  - `uninstall [shell]` - Remove completion for Zsh (auto-detects or requires explicit shell)
+
+### Requirement: Shell Detection
+
+The completion system SHALL automatically detect the user's current shell environment.
+
+#### Scenario: Detecting Zsh from environment
+
+- **WHEN** no shell is explicitly specified
+- **THEN** read the `$SHELL` environment variable
+- **AND** extract the shell name from the path (e.g., `/bin/zsh` → `zsh`)
+- **AND** validate the shell is `zsh`
+- **AND** throw an error if the shell is not `zsh`, with message indicating only Zsh is currently supported
+
+#### Scenario: Non-Zsh shell detection
+
+- **WHEN** shell path indicates bash, fish, powershell, or other non-Zsh shell
+- **THEN** throw error: "Shell '<name>' is not supported yet. Currently supported: zsh"
+
+### Requirement: Completion Generation
+
+The completion command SHALL generate Zsh completion scripts on demand.
+
+#### Scenario: Generating Zsh completion
+
+- **WHEN** user executes `openspec completion zsh`
+- **THEN** output a complete Zsh completion script to stdout
+- **AND** include completions for all commands: init, list, show, validate, archive, view, update, change, spec, completion
+- **AND** include all command-specific flags and options
+- **AND** use Zsh's `_arguments` and `_describe` built-in functions
+- **AND** support dynamic completion for change and spec IDs
+
+### Requirement: Dynamic Completions
+
+The completion system SHALL provide context-aware dynamic completions for project-specific values.
+
+#### Scenario: Completing change IDs
+
+- **WHEN** completing arguments for commands that accept change names (show, validate, archive)
+- **THEN** discover active changes from `openspec/changes/` directory
+- **AND** exclude archived changes in `openspec/changes/archive/`
+- **AND** return change IDs as completion suggestions
+- **AND** only provide suggestions when inside an OpenSpec-enabled project
+
+#### Scenario: Completing spec IDs
+
+- **WHEN** completing arguments for commands that accept spec names (show, validate)
+- **THEN** discover specs from `openspec/specs/` directory
+- **AND** return spec IDs as completion suggestions
+- **AND** only provide suggestions when inside an OpenSpec-enabled project
+
+#### Scenario: Completion caching
+
+- **WHEN** dynamic completions are requested
+- **THEN** cache discovered change and spec IDs for 2 seconds
+- **AND** reuse cached values for subsequent requests within cache window
+- **AND** automatically refresh cache after expiration
+
+#### Scenario: Project detection
+
+- **WHEN** user requests completions outside an OpenSpec project
+- **THEN** skip dynamic change/spec ID completions
+- **AND** only suggest static commands and flags
+
+### Requirement: Installation Automation
+
+The completion command SHALL automatically install completion scripts into shell configuration files.
+
+#### Scenario: Installing for Oh My Zsh
+
+- **WHEN** user executes `openspec completion install zsh`
+- **THEN** detect if Oh My Zsh is installed by checking for `$ZSH` environment variable or `~/.oh-my-zsh/` directory
+- **AND** create custom completions directory at `~/.oh-my-zsh/custom/completions/` if it doesn't exist
+- **AND** write completion script to `~/.oh-my-zsh/custom/completions/_openspec`
+- **AND** ensure `~/.oh-my-zsh/custom/completions` is in `$fpath` by updating `~/.zshrc` if needed
+- **AND** display success message with instruction to run `exec zsh` or restart terminal
+
+#### Scenario: Installing for standard Zsh
+
+- **WHEN** user executes `openspec completion install zsh` and Oh My Zsh is not detected
+- **THEN** create completions directory at `~/.zsh/completions/` if it doesn't exist
+- **AND** write completion script to `~/.zsh/completions/_openspec`
+- **AND** add `fpath=(~/.zsh/completions $fpath)` to `~/.zshrc` if not already present
+- **AND** add `autoload -Uz compinit && compinit` to `~/.zshrc` if not already present
+- **AND** display success message with instruction to run `exec zsh` or restart terminal
+
+#### Scenario: Auto-detecting Zsh for installation
+
+- **WHEN** user executes `openspec completion install` without specifying a shell
+- **THEN** detect current shell using shell detection logic
+- **AND** install completion if detected shell is Zsh
+- **AND** throw error if detected shell is not Zsh
+- **AND** display which shell was detected
+
+#### Scenario: Already installed
+
+- **WHEN** completion is already installed for the target shell
+- **THEN** display message indicating completion is already installed
+- **AND** offer to reinstall/update by overwriting existing files
+- **AND** exit with code 0
+
+### Requirement: Uninstallation
+
+The completion command SHALL remove installed completion scripts and configuration.
+
+#### Scenario: Uninstalling Oh My Zsh completion
+
+- **WHEN** user executes `openspec completion uninstall zsh`
+- **THEN** remove `~/.oh-my-zsh/custom/completions/_openspec` if Oh My Zsh is detected
+- **AND** remove `~/.zsh/completions/_openspec` if standard Zsh setup is detected
+- **AND** optionally remove fpath modifications from `~/.zshrc` (with confirmation)
+- **AND** display success message
+
+#### Scenario: Auto-detecting Zsh for uninstallation
+
+- **WHEN** user executes `openspec completion uninstall` without specifying a shell
+- **THEN** detect current shell and uninstall completion if shell is Zsh
+- **AND** throw error if detected shell is not Zsh
+
+#### Scenario: Not installed
+
+- **WHEN** attempting to uninstall completion that isn't installed
+- **THEN** display message indicating completion is not installed
+- **AND** exit with code 0
+
+### Requirement: Architecture Patterns
+
+The completion implementation SHALL follow clean architecture principles with TypeScript best practices.
+
+#### Scenario: Shell-specific generators
+
+- **WHEN** implementing completion generators
+- **THEN** create `ZshCompletionGenerator` class for Zsh
+- **AND** implement a common `CompletionGenerator` interface with methods:
+  - `generate(): string` - Returns complete shell script
+  - `getInstallPath(): string` - Returns target installation path
+  - `getConfigFile(): string` - Returns shell configuration file path
+- **AND** design interface to be extensible for future shells (bash, fish, powershell)
+
+#### Scenario: Dynamic completion providers
+
+- **WHEN** implementing dynamic completions
+- **THEN** create a `CompletionProvider` class that encapsulates project discovery logic
+- **AND** implement methods:
+  - `getChangeIds(): Promise<string[]>` - Discovers active change IDs
+  - `getSpecIds(): Promise<string[]>` - Discovers spec IDs
+  - `isOpenSpecProject(): boolean` - Checks if current directory is OpenSpec-enabled
+- **AND** implement caching with 2-second TTL using class properties
+
+#### Scenario: Command registry
+
+- **WHEN** defining completable commands
+- **THEN** create a centralized `CommandDefinition` type with properties:
+  - `name: string` - Command name
+  - `description: string` - Help text
+  - `flags: FlagDefinition[]` - Available flags
+  - `acceptsChangeId: boolean` - Whether command takes change ID argument
+  - `acceptsSpecId: boolean` - Whether command takes spec ID argument
+  - `subcommands?: CommandDefinition[]` - Nested subcommands
+- **AND** export a `COMMAND_REGISTRY` constant with all command definitions
+- **AND** generators consume this registry to ensure consistency
+
+#### Scenario: Type-safe shell detection
+
+- **WHEN** implementing shell detection
+- **THEN** define a `SupportedShell` type as literal type: `'zsh'`
+- **AND** implement `detectShell()` function that returns 'zsh' or throws error
+- **AND** design type to be extensible (e.g., future: `'bash' | 'zsh' | 'fish' | 'powershell'`)
+
+### Requirement: Error Handling
+
+The completion command SHALL provide clear error messages for common failure scenarios.
+
+#### Scenario: Unsupported shell
+
+- **WHEN** user requests completion for unsupported shell (bash, fish, powershell, etc.)
+- **THEN** display error message: "Shell '<name>' is not supported yet. Currently supported: zsh"
+- **AND** exit with code 1
+
+#### Scenario: Permission errors during installation
+
+- **WHEN** installation fails due to file permission issues
+- **THEN** display clear error message indicating permission problem
+- **AND** suggest using appropriate permissions or alternative installation method
+- **AND** exit with code 1
+
+#### Scenario: Missing shell configuration directory
+
+- **WHEN** expected shell configuration directory doesn't exist
+- **THEN** create the directory automatically (with user notification)
+- **AND** proceed with installation
+
+#### Scenario: Shell not detected
+
+- **WHEN** `openspec completion install` cannot detect current shell or detects non-Zsh shell
+- **THEN** display error: "Could not detect Zsh. Please specify explicitly: openspec completion install zsh"
+- **AND** exit with code 1
+
+### Requirement: Output Format
+
+The completion command SHALL provide machine-parseable and human-readable output.
+
+#### Scenario: Script generation output
+
+- **WHEN** generating completion script to stdout
+- **THEN** output only the completion script content (no extra messages)
+- **AND** allow redirection to files: `openspec completion zsh > /path/to/_openspec`
+
+#### Scenario: Installation success output
+
+- **WHEN** installation completes successfully
+- **THEN** display formatted success message with:
+  - Checkmark indicator
+  - Installation location
+  - Next steps (shell reload instructions)
+- **AND** use colors when terminal supports it (unless `--no-color` is set)
+
+#### Scenario: Verbose installation output
+
+- **WHEN** user provides `--verbose` flag during installation
+- **THEN** display detailed steps:
+  - Shell detection result
+  - Target file paths
+  - Configuration modifications
+  - File creation confirmations
+
+### Requirement: Testing Support
+
+The completion implementation SHALL be testable with unit and integration tests.
+
+#### Scenario: Mock shell environment
+
+- **WHEN** writing tests for shell detection
+- **THEN** allow overriding `$SHELL` environment variable
+- **AND** use dependency injection for file system operations
+
+#### Scenario: Generator output verification
+
+- **WHEN** testing completion generators
+- **THEN** verify generated scripts contain expected patterns
+- **AND** test that command registry is properly consumed
+- **AND** ensure dynamic completion placeholders are present
+
+#### Scenario: Installation simulation
+
+- **WHEN** testing installation logic
+- **THEN** use temporary test directories instead of actual home directories
+- **AND** verify file creation without modifying real shell configurations
+- **AND** test path resolution logic independently
+
+## Not in Scope
+
+The following shells are **architecturally documented but not implemented** in this proposal. They will be added in future proposals:
+
+- **Bash completion** - Will use bash-completion framework with `_init_completion`, `compgen`, and `COMPREPLY`
+- **Fish completion** - Will use Fish's declarative `complete -c` syntax
+- **PowerShell completion** - Will use `Register-ArgumentCompleter` with completion result objects
+
+The plugin-based architecture (CompletionGenerator interface, command registry, dynamic providers) is designed to make adding these shells straightforward in follow-up changes.
+
+## Why
+
+Shell completions are essential for professional CLI tools and significantly improve developer experience by reducing friction, errors, and cognitive load during daily workflows.

openspec/changes/archive/2025-11-06-add-shell-completions/tasks.md

@@ -0,0 +1,81 @@
+# Implementation Tasks
+
+## Phase 1: Foundation & Architecture
+
+- [x] Create `src/utils/shell-detection.ts` with `SupportedShell` type and `detectShell()` function
+- [x] Create `src/core/completions/types.ts` with interfaces: `CompletionGenerator`, `CommandDefinition`, `FlagDefinition`
+- [x] Create `src/core/completions/command-registry.ts` with `COMMAND_REGISTRY` constant defining all OpenSpec commands, flags, and metadata
+- [x] Create `src/core/completions/completion-provider.ts` with `CompletionProvider` class for dynamic change/spec ID discovery with 2-second caching
+- [x] Write tests for shell detection (`test/utils/shell-detection.test.ts`)
+- [x] Write tests for completion provider (`test/core/completions/completion-provider.test.ts`)
+
+## Phase 2: Zsh Completion (Oh My Zsh Priority)
+
+- [x] Create `src/core/completions/generators/zsh-generator.ts` implementing `CompletionGenerator` interface
+- [x] Implement Zsh script generation using `_arguments` and `_describe` patterns
+- [x] Add dynamic completion logic for change/spec IDs using completion provider
+- [x] Test Zsh generator output (`test/core/completions/generators/zsh-generator.test.ts`)
+- [x] Create `src/core/completions/installers/zsh-installer.ts` with Oh My Zsh and standard Zsh support
+- [x] Implement Oh My Zsh detection (`$ZSH` env var or `~/.oh-my-zsh/` directory)
+- [x] Implement installation to `~/.oh-my-zsh/custom/completions/_openspec` for Oh My Zsh
+- [x] Implement fallback installation to `~/.zsh/completions/_openspec` with `fpath` updates
+- [x] Test Zsh installer logic with mocked file system (`test/core/completions/installers/zsh-installer.test.ts`)
+
+## Phase 3: CLI Command Implementation
+
+- [x] Create `src/commands/completion.ts` with `CompletionCommand` class
+- [x] Register `completion` command in `src/cli/index.ts` with subcommands: generate, install, uninstall
+- [x] Implement `generateSubcommand()` that outputs Zsh script to stdout
+- [x] Implement `installSubcommand(shell?: 'zsh')` with auto-detection for Zsh-only
+- [x] Implement `uninstallSubcommand(shell?: 'zsh')` for removing Zsh completions
+- [x] Add `--verbose` flag support for detailed installation output
+- [x] Add error handling with clear messages: "Shell '<name>' is not supported yet. Currently supported: zsh"
+- [x] Test completion command integration (`test/commands/completion.test.ts`)
+
+## Phase 4: Integration & Polish
+
+- [x] Create factory pattern in `src/core/completions/factory.ts` to instantiate Zsh generator/installer (extensible for future shells)
+- [x] Add `completion` command to command registry for self-referential completion
+- [x] Implement dynamic completion helper functions in Zsh generator (`_openspec_complete_changes`, `_openspec_complete_specs`, `_openspec_complete_items`)
+- [x] Add 'shell' positional type for completion command arguments
+- [x] Test completion generation with dynamic helpers
+- [x] Test completion install/uninstall flow
+- [x] Verify all tests pass (97 completion tests, 340 total tests)
+- [x] Implement auto-install via npm postinstall script
+- [x] Add safety checks (CI detection, opt-out flag)
+- [x] Handle Oh My Zsh vs standard Zsh installation paths
+- [x] Add test script for postinstall validation
+- [x] Document auto-install behavior and opt-out in README
+- [ ] Manually test Zsh completion in Oh My Zsh environment (install, test tab completion, uninstall)
+- [ ] Manually test Zsh completion in standard Zsh environment
+- [ ] Test dynamic change/spec ID completion in real OpenSpec projects
+- [ ] Verify completion cache behavior (2-second TTL)
+- [ ] Test behavior outside OpenSpec projects (should skip dynamic completions)
+- [x] Update `openspec --help` output to include completion command (automatically done via Commander)
+
+## Phase 5: Edge Cases & Error Handling
+
+- [ ] Test and handle permission errors during installation
+- [ ] Test and handle missing shell configuration directories (auto-create with notification)
+- [ ] Test "already installed" detection and reinstall flow
+- [ ] Test "not installed" detection during uninstall
+- [ ] Verify `--no-color` flag is respected in completion command output
+- [ ] Test shell detection failure scenarios with helpful error messages
+- [ ] Ensure graceful handling when `$SHELL` is unset or invalid
+- [ ] Test non-Zsh shells get clear "not supported yet" error messages
+- [ ] Test generator output can be redirected to files without corruption
+
+## Dependencies
+
+- Phase 2 depends on Phase 1 (foundation must exist first)
+- Phase 3 depends on Phase 2 (CLI needs Zsh generator working)
+- Phase 4 depends on Phase 3 (integration requires CLI + Zsh implementation)
+- Phase 5 depends on Phase 4 (edge case testing after core functionality works)
+
+## Future Work (Not in This Proposal)
+
+- **Bash completions** - Create bash-generator.ts and bash-installer.ts in follow-up proposal
+- **Fish completions** - Create fish-generator.ts and fish-installer.ts in follow-up proposal
+- **PowerShell completions** - Create powershell-generator.ts and powershell-installer.ts in follow-up proposal
+
+The architecture is designed to make adding these shells straightforward by implementing the `CompletionGenerator` interface.

openspec/changes/archive/2025-12-20-add-global-config-dir/design.md

@@ -0,0 +1,105 @@
+## Context
+
+OpenSpec needs a standard location for user-level configuration that works across platforms and follows established conventions. This will serve as the foundation for settings, feature flags, and future artifacts like workflows or templates.
+
+## Goals / Non-Goals
+
+**Goals:**
+- Provide a single, well-defined location for global config
+- Follow XDG Base Directory Specification (widely adopted by CLI tools)
+- Support cross-platform usage (Unix, macOS, Windows)
+- Keep implementation minimal - just the foundation
+- Enable future expansion (cache, state, workflows)
+
+**Non-Goals:**
+- Project-local config override (not in scope)
+- Config file migration tooling
+- Config validation CLI commands
+- Multiple config profiles
+
+## Decisions
+
+### Path Resolution Strategy
+
+**Decision:** Use XDG Base Directory Specification with platform fallbacks.
+
+```
+Unix/macOS: $XDG_CONFIG_HOME/openspec/ or ~/.config/openspec/
+Windows:    %APPDATA%/openspec/
+```
+
+**Rationale:**
+- XDG is the de facto standard for CLI tools (used by gh, bat, ripgrep, etc.)
+- Environment variable override allows user customization
+- Windows uses its native convention (%APPDATA%) for better integration
+
+**Alternatives considered:**
+- `~/.openspec/` - Simple but clutters home directory
+- `~/Library/Application Support/` on macOS - Overkill for a CLI tool
+
+### Config File Format
+
+**Decision:** JSON (`config.json`)
+
+**Rationale:**
+- Native Node.js support (no dependencies)
+- Human-readable and editable
+- Type-safe with TypeScript
+- Matches project.md's "minimal dependencies" principle
+
+**Alternatives considered:**
+- YAML - Requires dependency, more error-prone to edit
+- TOML - Less common in Node.js ecosystem
+- Environment variables only - Too limited for structured settings
+
+### Config Schema
+
+**Decision:** Flat structure with typed fields, start minimal.
+
+```typescript
+interface GlobalConfig {
+  featureFlags?: Record<string, boolean>;
+}
+```
+
+**Rationale:**
+- `featureFlags` enables controlled rollout of new features
+- Optional fields with defaults avoid breaking changes
+- Flat structure is easy to understand and extend
+
+### Loading Strategy
+
+**Decision:** Read from disk on each call, no caching.
+
+```typescript
+export function getGlobalConfig(): GlobalConfig {
+  return loadConfigFromDisk();
+}
+```
+
+**Rationale:**
+- CLI commands are short-lived; caching adds complexity without benefit
+- Reading a small JSON file is ~1ms; negligible overhead
+- Always returns fresh data; no cache invalidation concerns
+- Simpler implementation
+
+### Directory Creation
+
+**Decision:** Create directory only when saving, not when reading.
+
+**Rationale:**
+- Don't create empty directories on read operations
+- Users who never save config won't have unnecessary directories
+- Aligns with principle of least surprise
+
+## Risks / Trade-offs
+
+| Risk | Mitigation |
+|------|------------|
+| Config file corruption | Return defaults on parse error, log warning |
+| Permissions issues | Check write permissions before save, clear error message |
+| Future schema changes | Use optional fields, add version field if needed later |
+
+## Open Questions
+
+None - this proposal is intentionally minimal.

openspec/changes/archive/2025-12-20-add-global-config-dir/proposal.md

@@ -0,0 +1,20 @@
+## Why
+
+OpenSpec currently has no mechanism for user-level global settings or feature flags. As the CLI grows, we need a standard location to store user preferences, experimental features, and other configuration that persists across projects. Following XDG Base Directory Specification provides a well-understood, cross-platform approach.
+
+## What Changes
+
+- Add new `src/core/global-config.ts` module with:
+  - Path resolution following XDG Base Directory spec (`$XDG_CONFIG_HOME/openspec/` or fallback)
+  - Cross-platform support (Unix, macOS, Windows)
+  - Lazy config loading with sensible defaults
+  - TypeScript types for config shape
+- Export a global config directory path getter for future use (workflows, templates, cache)
+- Initial config schema supports 1-2 settings/feature flags only
+
+## Impact
+
+- Affected specs: New `global-config` capability (no existing specs modified)
+- Affected code:
+  - New `src/core/global-config.ts`
+  - Update `src/core/index.ts` to export new module

openspec/changes/archive/2025-12-20-add-global-config-dir/specs/global-config/spec.md

@@ -0,0 +1,76 @@
+## ADDED Requirements
+
+### Requirement: Global Config Directory Path
+
+The system SHALL resolve the global configuration directory path following XDG Base Directory Specification with platform-specific fallbacks.
+
+#### Scenario: Unix/macOS with XDG_CONFIG_HOME set
+- **WHEN** `$XDG_CONFIG_HOME` environment variable is set to `/custom/config`
+- **THEN** `getGlobalConfigDir()` returns `/custom/config/openspec`
+
+#### Scenario: Unix/macOS without XDG_CONFIG_HOME
+- **WHEN** `$XDG_CONFIG_HOME` environment variable is not set
+- **AND** the platform is Unix or macOS
+- **THEN** `getGlobalConfigDir()` returns `~/.config/openspec` (expanded to absolute path)
+
+#### Scenario: Windows platform
+- **WHEN** the platform is Windows
+- **AND** `%APPDATA%` is set to `C:\Users\User\AppData\Roaming`
+- **THEN** `getGlobalConfigDir()` returns `C:\Users\User\AppData\Roaming\openspec`
+
+### Requirement: Global Config Loading
+
+The system SHALL load global configuration from the config directory with sensible defaults when the config file does not exist or cannot be parsed.
+
+#### Scenario: Config file exists and is valid
+- **WHEN** `config.json` exists in the global config directory
+- **AND** the file contains valid JSON matching the config schema
+- **THEN** `getGlobalConfig()` returns the parsed configuration
+
+#### Scenario: Config file does not exist
+- **WHEN** `config.json` does not exist in the global config directory
+- **THEN** `getGlobalConfig()` returns the default configuration
+- **AND** no directory or file is created
+
+#### Scenario: Config file is invalid JSON
+- **WHEN** `config.json` exists but contains invalid JSON
+- **THEN** `getGlobalConfig()` returns the default configuration
+- **AND** a warning is logged to stderr
+
+### Requirement: Global Config Saving
+
+The system SHALL save global configuration to the config directory, creating the directory if it does not exist.
+
+#### Scenario: Save config to new directory
+- **WHEN** `saveGlobalConfig(config)` is called
+- **AND** the global config directory does not exist
+- **THEN** the directory is created
+- **AND** `config.json` is written with the provided configuration
+
+#### Scenario: Save config to existing directory
+- **WHEN** `saveGlobalConfig(config)` is called
+- **AND** the global config directory already exists
+- **THEN** `config.json` is written (overwriting if exists)
+
+### Requirement: Default Configuration
+
+The system SHALL provide a default configuration that is used when no config file exists.
+
+#### Scenario: Default config structure
+- **WHEN** no config file exists
+- **THEN** the default configuration includes an empty `featureFlags` object
+
+### Requirement: Config Schema Evolution
+
+The system SHALL merge loaded configuration with default values to ensure new config fields are available even when loading older config files.
+
+#### Scenario: Config file missing new fields
+- **WHEN** `config.json` exists with `{ "featureFlags": {} }`
+- **AND** the current schema includes a new field `defaultAiTool`
+- **THEN** `getGlobalConfig()` returns `{ featureFlags: {}, defaultAiTool: <default> }`
+- **AND** the loaded values take precedence over defaults for fields that exist in both
+
+#### Scenario: Config file has extra unknown fields
+- **WHEN** `config.json` contains fields not in the current schema
+- **THEN** the unknown fields are preserved in the returned configuration
+- **AND** no error or warning is raised

openspec/changes/archive/2025-12-20-add-global-config-dir/tasks.md

@@ -0,0 +1,26 @@
+## 1. Core Implementation
+
+- [x] 1.1 Create `src/core/global-config.ts` with path resolution
+  - Implement `getGlobalConfigDir()` following XDG spec
+  - Support `$XDG_CONFIG_HOME` environment variable override
+  - Platform-specific fallbacks (Unix: `~/.config/`, Windows: `%APPDATA%`)
+- [x] 1.2 Define TypeScript interfaces for config shape
+  - `GlobalConfig` interface with optional fields
+  - Start minimal: just `featureFlags?: Record<string, boolean>`
+- [x] 1.3 Implement config loading with defaults
+  - `getGlobalConfig()` - reads config.json if exists, merges with defaults
+  - No directory/file creation on read (lazy initialization)
+- [x] 1.4 Implement config saving
+  - `saveGlobalConfig(config)` - writes config.json, creates directory if needed
+
+## 2. Integration
+
+- [x] 2.1 Export new module from `src/core/index.ts`
+- [x] 2.2 Add constants for config file name and directory name
+
+## 3. Testing
+
+- [x] 3.1 Manual testing of path resolution on current platform
+- [x] 3.2 Test with/without `$XDG_CONFIG_HOME` set
+- [x] 3.3 Test config load when file doesn't exist (should return defaults)
+- [x] 3.4 Unit tests in `test/core/global-config.test.ts` (18 tests)

openspec/changes/archive/2025-12-21-add-config-command/design.md

@@ -0,0 +1,89 @@
+## Context
+
+The `global-config` spec defines how OpenSpec reads/writes `config.json`, but users currently must edit it by hand. This command provides a CLI interface to that config.
+
+## Goals / Non-Goals
+
+**Goals:**
+- Provide a discoverable CLI for config management
+- Support scripting with machine-readable output
+- Validate config changes with zod schema
+- Handle nested keys gracefully
+
+**Non-Goals:**
+- Project-local config (reserved for future via `--scope` flag)
+- Complex queries (JSONPath, filtering)
+- Config file format migration
+
+## Decisions
+
+### Key Naming: camelCase with Dot Notation
+
+**Decision:** Keys use camelCase matching the JSON structure, with dot notation for nesting.
+
+**Rationale:**
+- Matches the actual JSON keys (no translation layer)
+- Dot notation is intuitive and widely used (lodash, jq, kubectl)
+- Avoids complexity of supporting multiple casing styles
+
+**Examples:**
+```bash
+openspec config get featureFlags              # Returns object
+openspec config get featureFlags.experimental # Returns nested value
+openspec config set featureFlags.newFlag true
+```
+
+### Type Coercion: Auto-detect with `--string` Override
+
+**Decision:** Parse values automatically; provide `--string` flag to force string storage.
+
+**Rationale:**
+- Most intuitive for common cases (`true`, `false`, `123`)
+- Explicit override for edge cases (storing literal string "true")
+- Follows npm/yarn config patterns
+
+**Coercion rules:**
+| Input | Stored As |
+|-------|-----------|
+| `true`, `false` | boolean |
+| Numeric string (`123`, `3.14`) | number |
+| Everything else | string |
+| Any value with `--string` | string |
+
+### Output Format: Raw by Default
+
+**Decision:** `get` prints raw value only. `list` prints YAML-like format by default, JSON with `--json`.
+
+**Rationale:**
+- Raw output enables piping: `VAR=$(openspec config get key)`
+- YAML-like is human-readable for inspection
+- JSON for automation/scripting
+
+### Schema Validation: Zod with Unknown Field Passthrough
+
+**Decision:** Use zod for validation but preserve unknown fields per `global-config` spec.
+
+**Rationale:**
+- Type safety for known fields
+- Forward compatibility (old CLI doesn't break new config)
+- Follows existing `global-config` spec requirement
+
+### Reserved Flag: `--scope`
+
+**Decision:** Reserve `--scope global|project` but only implement `global` initially.
+
+**Rationale:**
+- Avoids breaking change if project-local config is added later
+- Clear error message if someone tries `--scope project`
+
+## Risks / Trade-offs
+
+| Risk | Mitigation |
+|------|------------|
+| Dot notation conflicts with keys containing dots | Rare in practice; document limitation |
+| Type coercion surprises | `--string` escape hatch; document rules |
+| $EDITOR not set | Check and provide helpful error message |
+
+## Open Questions
+
+None - design is straightforward.

openspec/changes/archive/2025-12-21-add-config-command/proposal.md

@@ -0,0 +1,60 @@
+## Why
+
+Users need a way to view and modify their global OpenSpec settings without manually editing JSON files. The `global-config` spec provides the foundation, but there's no user-facing interface to interact with the config. A dedicated `openspec config` command provides discoverability and ease of use.
+
+## What Changes
+
+Add `openspec config` subcommand with the following operations:
+
+```bash
+openspec config path                          # Show config file location
+openspec config list [--json]                 # Show all current settings
+openspec config get <key>                     # Get a specific value (raw, scriptable)
+openspec config set <key> <value> [--string]  # Set a value (auto-coerce types)
+openspec config unset <key>                   # Remove a key (revert to default)
+openspec config reset --all [-y]              # Reset everything to defaults
+openspec config edit                          # Open config in $EDITOR
+```
+
+**Key design decisions:**
+- **Key naming**: Use camelCase to match JSON structure (e.g., `featureFlags.someFlag`)
+- **Nested keys**: Support dot notation for nested access
+- **Type coercion**: Auto-detect types by default; `--string` flag forces string storage
+- **Scriptable output**: `get` prints raw value only (no labels) for easy piping
+- **Zod validation**: Use zod for config schema validation and type safety
+- **Future-proofing**: Reserve `--scope global|project` flag for potential project-local config
+
+**Example usage:**
+```bash
+$ openspec config path
+/Users/me/.config/openspec/config.json
+
+$ openspec config list
+featureFlags: {}
+
+$ openspec config set featureFlags.enableTelemetry false
+Set featureFlags.enableTelemetry = false
+
+$ openspec config get featureFlags.enableTelemetry
+false
+
+$ openspec config list --json
+{
+  "featureFlags": {}
+}
+
+$ openspec config unset featureFlags.enableTelemetry
+Unset featureFlags.enableTelemetry (reverted to default)
+
+$ openspec config edit
+# Opens $EDITOR with config.json
+```
+
+## Impact
+
+- Affected specs: New `cli-config` capability
+- Affected code:
+  - New `src/commands/config.ts`
+  - New `src/core/config-schema.ts` (zod schema)
+  - Update CLI entry point to register config command
+- Dependencies: Requires `global-config` spec (already implemented)

openspec/changes/archive/2025-12-21-add-config-command/specs/cli-config/spec.md

@@ -0,0 +1,213 @@
+# cli-config Specification
+
+## Purpose
+
+Provide a CLI interface for viewing and modifying global OpenSpec configuration. Enables users to manage settings without manually editing JSON files, with support for scripting and automation.
+
+## ADDED Requirements
+
+### Requirement: Command Structure
+
+The config command SHALL provide subcommands for all configuration operations.
+
+#### Scenario: Available subcommands
+
+- **WHEN** user executes `openspec config --help`
+- **THEN** display available subcommands:
+  - `path` - Show config file location
+  - `list` - Show all current settings
+  - `get <key>` - Get a specific value
+  - `set <key> <value>` - Set a value
+  - `unset <key>` - Remove a key (revert to default)
+  - `reset` - Reset configuration to defaults
+  - `edit` - Open config in editor
+
+### Requirement: Config Path
+
+The config command SHALL display the config file location.
+
+#### Scenario: Show config path
+
+- **WHEN** user executes `openspec config path`
+- **THEN** print the absolute path to the config file
+- **AND** exit with code 0
+
+### Requirement: Config List
+
+The config command SHALL display all current configuration values.
+
+#### Scenario: List config in human-readable format
+
+- **WHEN** user executes `openspec config list`
+- **THEN** display all config values in YAML-like format
+- **AND** show nested objects with indentation
+
+#### Scenario: List config as JSON
+
+- **WHEN** user executes `openspec config list --json`
+- **THEN** output the complete config as valid JSON
+- **AND** output only JSON (no additional text)
+
+### Requirement: Config Get
+
+The config command SHALL retrieve specific configuration values.
+
+#### Scenario: Get top-level key
+
+- **WHEN** user executes `openspec config get <key>` with a valid top-level key
+- **THEN** print the raw value only (no labels or formatting)
+- **AND** exit with code 0
+
+#### Scenario: Get nested key with dot notation
+
+- **WHEN** user executes `openspec config get featureFlags.someFlag`
+- **THEN** traverse the nested structure using dot notation
+- **AND** print the value at that path
+
+#### Scenario: Get non-existent key
+
+- **WHEN** user executes `openspec config get <key>` with a key that does not exist
+- **THEN** print nothing (empty output)
+- **AND** exit with code 1
+
+#### Scenario: Get object value
+
+- **WHEN** user executes `openspec config get <key>` where the value is an object
+- **THEN** print the object as JSON
+
+### Requirement: Config Set
+
+The config command SHALL set configuration values with automatic type coercion.
+
+#### Scenario: Set string value
+
+- **WHEN** user executes `openspec config set <key> <value>`
+- **AND** value does not match boolean or number patterns
+- **THEN** store value as a string
+- **AND** display confirmation message
+
+#### Scenario: Set boolean value
+
+- **WHEN** user executes `openspec config set <key> true` or `openspec config set <key> false`
+- **THEN** store value as boolean (not string)
+- **AND** display confirmation message
+
+#### Scenario: Set numeric value
+
+- **WHEN** user executes `openspec config set <key> <value>`
+- **AND** value is a valid number (integer or float)
+- **THEN** store value as number (not string)
+
+#### Scenario: Force string with --string flag
+
+- **WHEN** user executes `openspec config set <key> <value> --string`
+- **THEN** store value as string regardless of content
+- **AND** this allows storing literal "true" or "123" as strings
+
+#### Scenario: Set nested key
+
+- **WHEN** user executes `openspec config set featureFlags.newFlag true`
+- **THEN** create intermediate objects if they don't exist
+- **AND** set the value at the nested path
+
+### Requirement: Config Unset
+
+The config command SHALL remove configuration overrides.
+
+#### Scenario: Unset existing key
+
+- **WHEN** user executes `openspec config unset <key>`
+- **AND** the key exists in the config
+- **THEN** remove the key from the config file
+- **AND** the value reverts to its default
+- **AND** display confirmation message
+
+#### Scenario: Unset non-existent key
+
+- **WHEN** user executes `openspec config unset <key>`
+- **AND** the key does not exist in the config
+- **THEN** display message indicating key was not set
+- **AND** exit with code 0
+
+### Requirement: Config Reset
+
+The config command SHALL reset configuration to defaults.
+
+#### Scenario: Reset all with confirmation
+
+- **WHEN** user executes `openspec config reset --all`
+- **THEN** prompt for confirmation before proceeding
+- **AND** if confirmed, delete the config file or reset to defaults
+- **AND** display confirmation message
+
+#### Scenario: Reset all with -y flag
+
+- **WHEN** user executes `openspec config reset --all -y`
+- **THEN** reset without prompting for confirmation
+
+#### Scenario: Reset without --all flag
+
+- **WHEN** user executes `openspec config reset` without `--all`
+- **THEN** display error indicating `--all` is required
+- **AND** exit with code 1
+
+### Requirement: Config Edit
+
+The config command SHALL open the config file in the user's editor.
+
+#### Scenario: Open editor successfully
+
+- **WHEN** user executes `openspec config edit`
+- **AND** `$EDITOR` or `$VISUAL` environment variable is set
+- **THEN** open the config file in that editor
+- **AND** create the config file with defaults if it doesn't exist
+- **AND** wait for the editor to close before returning
+
+#### Scenario: No editor configured
+
+- **WHEN** user executes `openspec config edit`
+- **AND** neither `$EDITOR` nor `$VISUAL` is set
+- **THEN** display error message suggesting to set `$EDITOR`
+- **AND** exit with code 1
+
+### Requirement: Key Naming Convention
+
+The config command SHALL use camelCase keys matching the JSON structure.
+
+#### Scenario: Keys match JSON structure
+
+- **WHEN** accessing configuration keys via CLI
+- **THEN** use camelCase matching the actual JSON property names
+- **AND** support dot notation for nested access (e.g., `featureFlags.someFlag`)
+
+### Requirement: Schema Validation
+
+The config command SHALL validate configuration writes against the config schema using zod, while allowing unknown fields for forward compatibility.
+
+#### Scenario: Unknown key accepted
+
+- **WHEN** user executes `openspec config set someFutureKey 123`
+- **THEN** the value is saved successfully
+- **AND** exit with code 0
+
+#### Scenario: Invalid feature flag value rejected
+
+- **WHEN** user executes `openspec config set featureFlags.someFlag notABoolean`
+- **THEN** display a descriptive error message
+- **AND** do not modify the config file
+- **AND** exit with code 1
+
+### Requirement: Reserved Scope Flag
+
+The config command SHALL reserve the `--scope` flag for future extensibility.
+
+#### Scenario: Scope flag defaults to global
+
+- **WHEN** user executes any config command without `--scope`
+- **THEN** operate on global configuration (default behavior)
+
+#### Scenario: Project scope not yet implemented
+
+- **WHEN** user executes `openspec config --scope project <subcommand>`
+- **THEN** display error message: "Project-local config is not yet implemented"
+- **AND** exit with code 1

openspec/changes/archive/2025-12-21-add-config-command/tasks.md

@@ -0,0 +1,28 @@
+## 1. Core Infrastructure
+
+- [x] 1.1 Create zod schema for global config in `src/core/config-schema.ts`
+- [x] 1.2 Add utility functions for dot-notation key access (get/set nested values)
+- [x] 1.3 Add type coercion logic (auto-detect boolean/number/string)
+
+## 2. Config Command Implementation
+
+- [x] 2.1 Create `src/commands/config.ts` with Commander.js subcommands
+- [x] 2.2 Implement `config path` subcommand
+- [x] 2.3 Implement `config list` subcommand with `--json` flag
+- [x] 2.4 Implement `config get <key>` subcommand (raw output)
+- [x] 2.5 Implement `config set <key> <value>` with `--string` flag
+- [x] 2.6 Implement `config unset <key>` subcommand
+- [x] 2.7 Implement `config reset --all` with `-y` confirmation flag
+- [x] 2.8 Implement `config edit` subcommand (spawn $EDITOR)
+
+## 3. Integration
+
+- [x] 3.1 Register config command in CLI entry point
+- [x] 3.2 Update shell completion registry to include config subcommands
+
+## 4. Testing
+
+- [x] 4.1 Manual testing of all subcommands
+- [x] 4.2 Verify zod validation rejects invalid keys/values
+- [x] 4.3 Test nested key access with dot notation
+- [x] 4.4 Test type coercion edge cases (true/false, numbers, strings)

openspec/changes/archive/2025-12-23-extend-shell-completions/proposal.md

@@ -0,0 +1,15 @@
+# Change Proposal: Extend Shell Completions
+
+## Why
+
+Zsh completions provide an excellent developer experience, but many developers use bash, fish, or PowerShell. Extending completion support to these shells removes friction for the majority of developers who don't use Zsh.
+
+## What Changes
+
+This change adds bash, fish, and PowerShell completion support following the same architectural patterns, documentation methodology, and testing rigor established for Zsh completions.
+
+## Deltas
+
+- **Spec:** `cli-completion`
+  - **Operation:** MODIFIED
+  - **Description:** Extend completion generation, installation, and testing requirements to support bash, fish, and PowerShell while maintaining the existing Zsh implementation and architectural patterns

openspec/changes/archive/2025-12-23-extend-shell-completions/specs/cli-completion/spec.md

@@ -0,0 +1,328 @@
+# cli-completion Spec Delta
+
+## MODIFIED Requirements
+
+### Requirement: Native Shell Behavior Integration
+
+The completion system SHALL respect and integrate with each supported shell's native completion patterns and user interaction model.
+
+#### Scenario: Zsh native completion
+
+- **WHEN** generating Zsh completion scripts
+- **THEN** use Zsh completion system with `_arguments`, `_describe`, and `compadd`
+- **AND** completions SHALL trigger on single TAB (standard Zsh behavior)
+- **AND** display as an interactive menu that users navigate with TAB/arrow keys
+- **AND** support Oh My Zsh's enhanced menu styling automatically
+
+#### Scenario: Bash native completion
+
+- **WHEN** generating Bash completion scripts
+- **THEN** use Bash completion with `complete` builtin and `COMPREPLY` array
+- **AND** completions SHALL trigger on double TAB (standard Bash behavior)
+- **AND** display as space-separated list or column format
+- **AND** support both bash-completion v1 and v2 patterns
+
+#### Scenario: Fish native completion
+
+- **WHEN** generating Fish completion scripts
+- **THEN** use Fish's `complete` command with conditions
+- **AND** completions SHALL trigger on single TAB with auto-suggestion preview
+- **AND** display with Fish's native coloring and description alignment
+- **AND** leverage Fish's built-in caching automatically
+
+#### Scenario: PowerShell native completion
+
+- **WHEN** generating PowerShell completion scripts
+- **THEN** use `Register-ArgumentCompleter` with scriptblock
+- **AND** completions SHALL trigger on TAB with cycling behavior
+- **AND** display with PowerShell's native completion UI
+- **AND** support both Windows PowerShell 5.1 and PowerShell Core 7+
+
+#### Scenario: No custom UX patterns
+
+- **WHEN** implementing completion for any shell
+- **THEN** do NOT attempt to customize completion trigger behavior
+- **AND** do NOT override shell-specific navigation patterns
+- **AND** ensure completions feel native to experienced users of that shell
+
+### Requirement: Shell Detection
+
+The completion system SHALL automatically detect the user's current shell environment.
+
+#### Scenario: Detecting Zsh from environment
+
+- **WHEN** no shell is explicitly specified
+- **THEN** read the `$SHELL` environment variable
+- **AND** extract the shell name from the path (e.g., `/bin/zsh` → `zsh`)
+- **AND** validate the shell is one of: `zsh`, `bash`, `fish`, `powershell`
+- **AND** throw an error if the shell is not supported
+
+#### Scenario: Detecting Bash from environment
+
+- **WHEN** `$SHELL` contains `bash` in the path
+- **THEN** detect shell as `bash`
+- **AND** proceed with bash-specific completion logic
+
+#### Scenario: Detecting Fish from environment
+
+- **WHEN** `$SHELL` contains `fish` in the path
+- **THEN** detect shell as `fish`
+- **AND** proceed with fish-specific completion logic
+
+#### Scenario: Detecting PowerShell from environment
+
+- **WHEN** `$PSModulePath` environment variable is present
+- **THEN** detect shell as `powershell`
+- **AND** proceed with PowerShell-specific completion logic
+
+#### Scenario: Unsupported shell detection
+
+- **WHEN** shell path indicates an unsupported shell
+- **THEN** throw error: "Shell '<name>' is not supported. Supported shells: zsh, bash, fish, powershell"
+
+### Requirement: Completion Generation
+
+The completion command SHALL generate completion scripts for all supported shells on demand.
+
+#### Scenario: Generating Zsh completion
+
+- **WHEN** user executes `openspec completion generate zsh`
+- **THEN** output a complete Zsh completion script to stdout
+- **AND** include completions for all commands: init, list, show, validate, archive, view, update, change, spec, completion
+- **AND** include all command-specific flags and options
+- **AND** use Zsh's `_arguments` and `_describe` built-in functions
+- **AND** support dynamic completion for change and spec IDs
+
+#### Scenario: Generating Bash completion
+
+- **WHEN** user executes `openspec completion generate bash`
+- **THEN** output a complete Bash completion script to stdout
+- **AND** include completions for all commands and subcommands
+- **AND** use `complete -F` with custom completion function
+- **AND** populate `COMPREPLY` with appropriate suggestions
+- **AND** support dynamic completion for change and spec IDs via `openspec __complete`
+
+#### Scenario: Generating Fish completion
+
+- **WHEN** user executes `openspec completion generate fish`
+- **THEN** output a complete Fish completion script to stdout
+- **AND** use `complete -c openspec` with conditions
+- **AND** include command-specific completions with `--condition` predicates
+- **AND** support dynamic completion for change and spec IDs via `openspec __complete`
+- **AND** include descriptions for each completion option
+
+#### Scenario: Generating PowerShell completion
+
+- **WHEN** user executes `openspec completion generate powershell`
+- **THEN** output a complete PowerShell completion script to stdout
+- **AND** use `Register-ArgumentCompleter -CommandName openspec`
+- **AND** implement scriptblock that handles command context
+- **AND** support dynamic completion for change and spec IDs via `openspec __complete`
+- **AND** return `[System.Management.Automation.CompletionResult]` objects
+
+### Requirement: Installation Automation
+
+The completion command SHALL automatically install completion scripts into shell configuration files for all supported shells.
+
+#### Scenario: Installing for Oh My Zsh
+
+- **WHEN** user executes `openspec completion install zsh`
+- **THEN** detect if Oh My Zsh is installed by checking for `$ZSH` environment variable or `~/.oh-my-zsh/` directory
+- **AND** create custom completions directory at `~/.oh-my-zsh/custom/completions/` if it doesn't exist
+- **AND** write completion script to `~/.oh-my-zsh/custom/completions/_openspec`
+- **AND** ensure `~/.oh-my-zsh/custom/completions` is in `$fpath` by updating `~/.zshrc` if needed
+- **AND** display success message with instruction to run `exec zsh` or restart terminal
+
+#### Scenario: Installing for standard Zsh
+
+- **WHEN** user executes `openspec completion install zsh` and Oh My Zsh is not detected
+- **THEN** create completions directory at `~/.zsh/completions/` if it doesn't exist
+- **AND** write completion script to `~/.zsh/completions/_openspec`
+- **AND** add `fpath=(~/.zsh/completions $fpath)` to `~/.zshrc` if not already present
+- **AND** add `autoload -Uz compinit && compinit` to `~/.zshrc` if not already present
+- **AND** display success message with instruction to run `exec zsh` or restart terminal
+
+#### Scenario: Installing for Bash with bash-completion
+
+- **WHEN** user executes `openspec completion install bash`
+- **THEN** detect if bash-completion is installed by checking for `/usr/share/bash-completion` or `/etc/bash_completion.d`
+- **AND** if bash-completion is available, write to `/etc/bash_completion.d/openspec` (with sudo) or `~/.local/share/bash-completion/completions/openspec`
+- **AND** if bash-completion is not available, write to `~/.bash_completion.d/openspec` and source it from `~/.bashrc`
+- **AND** add sourcing line to `~/.bashrc` using marker-based updates if needed
+- **AND** display success message with instruction to run `exec bash` or restart terminal
+
+#### Scenario: Installing for Fish
+
+- **WHEN** user executes `openspec completion install fish`
+- **THEN** create Fish completions directory at `~/.config/fish/completions/` if it doesn't exist
+- **AND** write completion script to `~/.config/fish/completions/openspec.fish`
+- **AND** Fish automatically loads completions from this directory (no config file modification needed)
+- **AND** display success message indicating completions are immediately available
+
+#### Scenario: Installing for PowerShell
+
+- **WHEN** user executes `openspec completion install powershell`
+- **THEN** detect PowerShell profile location via `$PROFILE` environment variable or default paths
+- **AND** create profile directory if it doesn't exist
+- **AND** add completion script import to profile using marker-based updates
+- **AND** write completion script to PowerShell modules directory or alongside profile
+- **AND** display success message with instruction to restart PowerShell or run `. $PROFILE`
+
+#### Scenario: Auto-detecting shell for installation
+
+- **WHEN** user executes `openspec completion install` without specifying a shell
+- **THEN** detect current shell using shell detection logic
+- **AND** install completion for the detected shell (zsh, bash, fish, or powershell)
+- **AND** display which shell was detected
+
+#### Scenario: Already installed
+
+- **WHEN** completion is already installed for the target shell
+- **THEN** display message indicating completion is already installed
+- **AND** offer to reinstall/update by overwriting existing files
+- **AND** exit with code 0
+
+### Requirement: Uninstallation
+
+The completion command SHALL remove installed completion scripts and configuration for all supported shells.
+
+#### Scenario: Uninstalling Zsh completion
+
+- **WHEN** user executes `openspec completion uninstall zsh`
+- **THEN** prompt for confirmation before proceeding (unless `--yes` flag provided)
+- **AND** if user declines, cancel uninstall and display "Uninstall cancelled."
+- **AND** if user confirms, remove `~/.oh-my-zsh/custom/completions/_openspec` if Oh My Zsh is detected
+- **AND** remove `~/.zsh/completions/_openspec` if standard Zsh setup is detected
+- **AND** remove fpath modifications from `~/.zshrc` using marker-based removal
+- **AND** display success message
+
+#### Scenario: Uninstalling Bash completion
+
+- **WHEN** user executes `openspec completion uninstall bash`
+- **THEN** prompt for confirmation (unless `--yes` flag provided)
+- **AND** if user confirms, remove completion file from bash-completion directory or `~/.bash_completion.d/`
+- **AND** remove sourcing lines from `~/.bashrc` using marker-based removal
+- **AND** display success message
+
+#### Scenario: Uninstalling Fish completion
+
+- **WHEN** user executes `openspec completion uninstall fish`
+- **THEN** prompt for confirmation (unless `--yes` flag provided)
+- **AND** if user confirms, remove `~/.config/fish/completions/openspec.fish`
+- **AND** display success message (no config file modification needed)
+
+#### Scenario: Uninstalling PowerShell completion
+
+- **WHEN** user executes `openspec completion uninstall powershell`
+- **THEN** prompt for confirmation (unless `--yes` flag provided)
+- **AND** if user confirms, remove completion import from PowerShell profile using marker-based removal
+- **AND** remove completion script file
+- **AND** display success message
+
+#### Scenario: Auto-detecting shell for uninstallation
+
+- **WHEN** user executes `openspec completion uninstall` without specifying a shell
+- **THEN** detect current shell and uninstall completion for that shell
+
+#### Scenario: Not installed
+
+- **WHEN** attempting to uninstall completion that isn't installed
+- **THEN** display error message indicating completion is not installed
+- **AND** exit with code 1
+
+### Requirement: Architecture Patterns
+
+The completion implementation SHALL follow clean architecture principles with TypeScript best practices, supporting multiple shells through a plugin-based pattern.
+
+#### Scenario: Shell-specific generators
+
+- **WHEN** implementing completion generators
+- **THEN** create generator classes for each shell: `ZshGenerator`, `BashGenerator`, `FishGenerator`, `PowerShellGenerator`
+- **AND** implement a common `CompletionGenerator` interface with method:
+  - `generate(commands: CommandDefinition[]): string` - Returns complete shell script
+- **AND** each generator handles shell-specific syntax, escaping, and patterns
+- **AND** all generators consume the same `CommandDefinition[]` from the command registry
+
+#### Scenario: Shell-specific installers
+
+- **WHEN** implementing completion installers
+- **THEN** create installer classes for each shell: `ZshInstaller`, `BashInstaller`, `FishInstaller`, `PowerShellInstaller`
+- **AND** implement a common `CompletionInstaller` interface with methods:
+  - `install(script: string): Promise<InstallationResult>` - Installs completion script
+  - `uninstall(): Promise<{ success: boolean; message: string }>` - Removes completion
+- **AND** each installer handles shell-specific paths, config files, and installation patterns
+
+#### Scenario: Factory pattern for shell selection
+
+- **WHEN** selecting shell-specific implementation
+- **THEN** use `CompletionFactory` class with static methods:
+  - `createGenerator(shell: SupportedShell): CompletionGenerator`
+  - `createInstaller(shell: SupportedShell): CompletionInstaller`
+- **AND** factory uses switch statements with TypeScript exhaustiveness checking
+- **AND** adding new shell requires updating `SupportedShell` type and factory cases
+
+#### Scenario: Dynamic completion providers
+
+- **WHEN** implementing dynamic completions
+- **THEN** create a `CompletionProvider` class that encapsulates project discovery logic
+- **AND** implement methods:
+  - `getChangeIds(): Promise<string[]>` - Discovers active change IDs
+  - `getSpecIds(): Promise<string[]>` - Discovers spec IDs
+  - `isOpenSpecProject(): boolean` - Checks if current directory is OpenSpec-enabled
+- **AND** implement caching with 2-second TTL using class properties
+
+#### Scenario: Command registry
+
+- **WHEN** defining completable commands
+- **THEN** create a centralized `CommandDefinition` type with properties:
+  - `name: string` - Command name
+  - `description: string` - Help text
+  - `flags: FlagDefinition[]` - Available flags
+  - `acceptsPositional: boolean` - Whether command takes positional arguments
+  - `positionalType: string` - Type of positional (change-id, spec-id, path, shell)
+  - `subcommands?: CommandDefinition[]` - Nested subcommands
+- **AND** export a `COMMAND_REGISTRY` constant with all command definitions
+- **AND** all generators consume this registry to ensure consistency across shells
+
+#### Scenario: Type-safe shell detection
+
+- **WHEN** implementing shell detection
+- **THEN** define a `SupportedShell` type as literal type: `'zsh' | 'bash' | 'fish' | 'powershell'`
+- **AND** implement `detectShell()` function in `src/utils/shell-detection.ts`
+- **AND** return detected shell or throw error with supported shells list
+
+### Requirement: Testing Support
+
+The completion implementation SHALL be testable with unit and integration tests for all supported shells.
+
+#### Scenario: Mock shell environment
+
+- **WHEN** writing tests for shell detection
+- **THEN** allow overriding `$SHELL` and `$PSModulePath` environment variables
+- **AND** use dependency injection for file system operations
+- **AND** test detection for all four shells independently
+
+#### Scenario: Generator output verification
+
+- **WHEN** testing completion generators
+- **THEN** create test suite for each shell generator (zsh, bash, fish, powershell)
+- **AND** verify generated scripts contain expected patterns for that shell
+- **AND** test that command registry is properly consumed
+- **AND** ensure dynamic completion placeholders are present
+- **AND** verify shell-specific syntax and escaping
+
+#### Scenario: Installer simulation
+
+- **WHEN** testing installation logic
+- **THEN** create test suite for each shell installer
+- **AND** use temporary test directories instead of actual home directories
+- **AND** verify file creation without modifying real shell configurations
+- **AND** test path resolution logic independently
+- **AND** mock file system operations to avoid side effects
+
+#### Scenario: Cross-shell consistency
+
+- **WHEN** testing completion behavior
+- **THEN** verify all shells support the same commands and flags
+- **AND** verify dynamic completions work consistently across shells
+- **AND** ensure error messages are consistent across shells

openspec/changes/archive/2025-12-23-extend-shell-completions/tasks.md

@@ -0,0 +1,49 @@
+# Implementation Tasks
+
+## Phase 1: Foundation and Bash Support
+
+- [x] Update `SupportedShell` type in `src/utils/shell-detection.ts` to include `'bash' | 'fish' | 'powershell'`
+- [x] Extend shell detection logic to recognize bash, fish, and PowerShell from environment variables
+- [x] Create `src/core/completions/generators/bash-generator.ts` implementing `CompletionGenerator` interface
+- [x] Create `src/core/completions/installers/bash-installer.ts` implementing `CompletionInstaller` interface
+- [x] Update `CompletionFactory.createGenerator()` to support bash
+- [x] Update `CompletionFactory.createInstaller()` to support bash
+- [x] Create test file `test/core/completions/generators/bash-generator.test.ts` mirroring zsh test structure
+- [x] Create test file `test/core/completions/installers/bash-installer.test.ts` mirroring zsh test structure
+- [x] Verify bash completions work manually: `openspec completion install bash && exec bash`
+
+## Phase 2: Fish Support
+
+- [x] Create `src/core/completions/generators/fish-generator.ts` implementing `CompletionGenerator` interface
+- [x] Create `src/core/completions/installers/fish-installer.ts` implementing `CompletionInstaller` interface
+- [x] Update `CompletionFactory.createGenerator()` to support fish
+- [x] Update `CompletionFactory.createInstaller()` to support fish
+- [x] Create test file `test/core/completions/generators/fish-generator.test.ts`
+- [x] Create test file `test/core/completions/installers/fish-installer.test.ts`
+- [x] Verify fish completions work manually: `openspec completion install fish`
+
+## Phase 3: PowerShell Support
+
+- [x] Create `src/core/completions/generators/powershell-generator.ts` implementing `CompletionGenerator` interface
+- [x] Create `src/core/completions/installers/powershell-installer.ts` implementing `CompletionInstaller` interface
+- [x] Update `CompletionFactory.createGenerator()` to support powershell
+- [x] Update `CompletionFactory.createInstaller()` to support powershell
+- [x] Create test file `test/core/completions/generators/powershell-generator.test.ts`
+- [x] Create test file `test/core/completions/installers/powershell-installer.test.ts`
+- [x] Verify PowerShell completions work manually on Windows or macOS PowerShell
+
+## Phase 4: Documentation and Testing
+
+- [x] Update `CLAUDE.md` or relevant documentation to mention all four supported shells
+- [x] Add cross-shell consistency test verifying all shells support same commands
+- [x] Run `pnpm test` to ensure all tests pass
+- [x] Run `pnpm run build` to verify TypeScript compilation
+- [x] Test all shells on different platforms (Linux for bash/fish/zsh, Windows/macOS for PowerShell)
+
+## Phase 5: Validation and Cleanup
+
+- [x] Run `openspec validate extend-shell-completions --strict` and resolve all issues
+- [x] Update error messages to list all four supported shells
+- [x] Verify `openspec completion --help` documentation is current
+- [x] Test auto-detection works for all shells
+- [x] Ensure uninstall works cleanly for all shells

openspec/changes/archive/2025-12-24-add-artifact-graph-core/design.md

@@ -0,0 +1,197 @@
+## Context
+
+This implements "Slice 1: What's Ready?" from the artifact POC analysis. The core insight is using the filesystem as a database - artifact completion is detected by file existence, making the system stateless and version-control friendly.
+
+This module will coexist with the current OpenSpec system as a parallel capability, potentially enabling future migration or integration.
+
+## Goals / Non-Goals
+
+**Goals:**
+- Pure dependency graph logic with no side effects
+- Stateless state detection (rescan filesystem each query)
+- Support glob patterns for multi-file artifacts (e.g., `specs/*.md`)
+- Load artifact definitions from YAML schemas
+- Calculate topological build order
+- Determine "ready" artifacts based on dependency completion
+
+**Non-Goals:**
+- CLI commands (Slice 4)
+- Multi-change management (Slice 2)
+- Template resolution and enrichment (Slice 3)
+- Agent integration or Claude commands
+- Replacing existing OpenSpec functionality
+
+## Decisions
+
+### Decision: Filesystem as Database
+Use file existence for state detection rather than a separate state file.
+
+**Rationale:**
+- Stateless - no state corruption possible
+- Git-friendly - state derived from committed files
+- Simple - no sync issues between state file and actual files
+
+**Alternatives considered:**
+- JSON/SQLite state file: More complex, sync issues, not git-friendly
+- Git metadata: Too coupled to git, complex implementation
+
+### Decision: Kahn's Algorithm for Topological Sort
+Use Kahn's algorithm for computing build order.
+
+**Rationale:**
+- Well-understood, O(V+E) complexity
+- Naturally detects cycles during execution
+- Produces a stable, deterministic order
+
+### Decision: Glob Pattern Support
+Support glob patterns like `specs/*.md` in artifact `generates` field.
+
+**Rationale:**
+- Allows multiple files to satisfy a single artifact requirement
+- Common pattern for spec directories with multiple files
+- Uses standard glob syntax
+
+### Decision: Immutable Completed Set
+Represent completion state as an immutable Set of completed artifact IDs.
+
+**Rationale:**
+- Functional style, easier to reason about
+- State derived fresh each query, no mutation needed
+- Clear separation between graph structure and runtime state
+- Filesystem can only detect binary existence (complete vs not complete)
+
+**Note:** `inProgress` and `failed` states are deferred to future slices. They would require external state tracking (e.g., a status file) since file existence alone cannot distinguish these states.
+
+### Decision: Zod for Schema Validation
+Use Zod for validating YAML schema structure and deriving TypeScript types.
+
+**Rationale:**
+- Already a project dependency (v4.0.17) used in `src/core/schemas/`
+- Type inference via `z.infer<>` - single source of truth for types
+- Runtime validation with detailed error messages
+- Consistent with existing project patterns (`base.schema.ts`, `config-schema.ts`)
+
+**Alternatives considered:**
+- Manual validation: More code, error-prone, no type inference
+- JSON Schema: Would require additional dependency, less TypeScript integration
+- io-ts: Not already in project, steeper learning curve
+
+### Decision: Two-Level Schema Resolution
+Schemas resolve from global user data directory, falling back to package built-ins.
+
+**Resolution order:**
+1. `${XDG_DATA_HOME:-~/.local/share}/openspec/schemas/<name>.yaml` - Global user override
+2. `<package>/schemas/<name>.yaml` - Built-in defaults
+
+**Rationale:**
+- Follows XDG Base Directory Specification (schemas are data, not config)
+- Mirrors existing `getGlobalConfigDir()` pattern in `src/core/global-paths.ts`
+- Built-ins baked into package, never auto-copied
+- Users customize by creating files in global data dir
+- Simple - no project-level overrides (can add later if needed)
+
+**XDG compliance:**
+- Uses `XDG_DATA_HOME` env var when set (all platforms)
+- Unix/macOS fallback: `~/.local/share/openspec/`
+- Windows fallback: `%LOCALAPPDATA%/openspec/`
+
+**Alternatives considered:**
+- Project-level overrides: Added complexity, not needed initially
+- Auto-copy to user space: Creates drift, harder to update defaults
+- Config directory (`XDG_CONFIG_HOME`): Schemas are workflow definitions (data), not user preferences (config)
+
+### Decision: Template Field Parsed But Not Resolved
+The `template` field is required in schema YAML for completeness, but template resolution is deferred to Slice 3.
+
+**Rationale:**
+- Slice 1 focuses on "What's Ready?" - dependency and completion queries only
+- Template paths are validated syntactically (non-empty string) but not resolved
+- Keeps Slice 1 focused and independently testable
+
+### Decision: Cycle Error Format
+Cycle errors list all artifact IDs in the cycle for easy debugging.
+
+**Format:** `"Cyclic dependency detected: A → B → C → A"`
+
+**Rationale:**
+- Shows the full cycle path, not just that a cycle exists
+- Actionable - developer can see exactly which artifacts to fix
+- Consistent with Kahn's algorithm which naturally identifies cycle participants
+
+## Data Structures
+
+**Zod Schemas (source of truth):**
+
+```typescript
+import { z } from 'zod';
+
+// Artifact definition schema
+export const ArtifactSchema = z.object({
+  id: z.string().min(1, 'Artifact ID is required'),
+  generates: z.string().min(1),      // e.g., "proposal.md" or "specs/*.md"
+  description: z.string(),
+  template: z.string(),              // path to template file
+  requires: z.array(z.string()).default([]),
+});
+
+// Full schema YAML structure
+export const SchemaYamlSchema = z.object({
+  name: z.string().min(1, 'Schema name is required'),
+  version: z.number().int().positive(),
+  description: z.string().optional(),
+  artifacts: z.array(ArtifactSchema).min(1, 'At least one artifact required'),
+});
+
+// Derived TypeScript types
+export type Artifact = z.infer<typeof ArtifactSchema>;
+export type SchemaYaml = z.infer<typeof SchemaYamlSchema>;
+```
+
+**Runtime State (not Zod - internal only):**
+
+```typescript
+// Slice 1: Simple completion tracking via filesystem
+type CompletedSet = Set<string>;
+
+// Return type for blocked query
+interface BlockedArtifacts {
+  [artifactId: string]: string[];  // artifact → list of unmet dependencies
+}
+
+interface ArtifactGraphResult {
+  completed: string[];
+  ready: string[];
+  blocked: BlockedArtifacts;
+  buildOrder: string[];
+}
+```
+
+## File Structure
+
+```
+src/core/artifact-graph/
+├── index.ts           # Public exports
+├── types.ts           # Zod schemas and type definitions
+├── graph.ts           # ArtifactGraph class
+├── state.ts           # State detection logic
+├── resolver.ts        # Schema resolution (global → built-in)
+└── schemas/           # Built-in schema definitions (package level)
+    ├── spec-driven.yaml   # Default: proposal → specs → design → tasks
+    └── tdd.yaml           # Alternative: tests → implementation → docs
+```
+
+**Schema Resolution Paths:**
+- Global user override: `${XDG_DATA_HOME:-~/.local/share}/openspec/schemas/<name>.yaml`
+- Package built-in: `src/core/artifact-graph/schemas/<name>.yaml` (bundled with package)
+
+## Risks / Trade-offs
+
+| Risk | Mitigation |
+|------|------------|
+| Glob pattern edge cases | Use well-tested glob library (fast-glob or similar) |
+| Cycle detection | Kahn's algorithm naturally fails on cycles; provide clear error |
+| Schema evolution | Version field in schema, validate on load |
+
+## Open Questions
+
+None - all questions resolved in Decisions section.

openspec/changes/archive/2025-12-24-add-artifact-graph-core/proposal.md

@@ -0,0 +1,18 @@
+## Why
+
+The current OpenSpec system relies on conventions and AI inference for artifact ordering. A formal artifact graph with dependency awareness would enable deterministic "what's ready?" queries, making the system more predictable and enabling future features like automated pipeline execution.
+
+## What Changes
+
+- Add `ArtifactGraph` class to model artifacts as a DAG with dependency relationships
+- Add `ArtifactState` type to track completion status (completed, in_progress, failed)
+- Add filesystem-based state detection using file existence and glob patterns
+- Add schema YAML parser to load artifact definitions
+- Implement topological sort (Kahn's algorithm) for build order calculation
+- Add `getNextArtifacts()` to find artifacts ready for creation
+
+## Impact
+
+- Affected specs: New `artifact-graph` capability
+- Affected code: `src/core/artifact-graph/` (new directory)
+- No changes to existing functionality - this is a parallel module

openspec/changes/archive/2025-12-24-add-artifact-graph-core/specs/artifact-graph/spec.md

@@ -0,0 +1,103 @@
+## ADDED Requirements
+
+### Requirement: Schema Loading
+The system SHALL load artifact graph definitions from YAML schema files.
+
+#### Scenario: Valid schema loaded
+- **WHEN** a valid schema YAML file is provided
+- **THEN** the system returns an ArtifactGraph with all artifacts and dependencies
+
+#### Scenario: Invalid schema rejected
+- **WHEN** a schema YAML file is missing required fields
+- **THEN** the system throws an error with a descriptive message
+
+#### Scenario: Cyclic dependencies detected
+- **WHEN** a schema contains cyclic artifact dependencies
+- **THEN** the system throws an error listing the artifact IDs in the cycle
+
+#### Scenario: Invalid dependency reference
+- **WHEN** an artifact's `requires` array references a non-existent artifact ID
+- **THEN** the system throws an error identifying the invalid reference
+
+#### Scenario: Duplicate artifact IDs rejected
+- **WHEN** a schema contains multiple artifacts with the same ID
+- **THEN** the system throws an error identifying the duplicate
+
+### Requirement: Build Order Calculation
+The system SHALL compute a valid topological build order for artifacts.
+
+#### Scenario: Linear dependency chain
+- **WHEN** artifacts form a linear chain (A → B → C)
+- **THEN** getBuildOrder() returns [A, B, C]
+
+#### Scenario: Diamond dependency
+- **WHEN** artifacts form a diamond (A → B, A → C, B → D, C → D)
+- **THEN** getBuildOrder() returns A before B and C, and D last
+
+#### Scenario: Independent artifacts
+- **WHEN** artifacts have no dependencies
+- **THEN** getBuildOrder() returns them in a stable order
+
+### Requirement: State Detection
+The system SHALL detect artifact completion state by scanning the filesystem.
+
+#### Scenario: Simple file exists
+- **WHEN** an artifact generates "proposal.md" and the file exists
+- **THEN** the artifact is marked as completed
+
+#### Scenario: Simple file missing
+- **WHEN** an artifact generates "proposal.md" and the file does not exist
+- **THEN** the artifact is not marked as completed
+
+#### Scenario: Glob pattern with files
+- **WHEN** an artifact generates "specs/*.md" and the specs/ directory contains .md files
+- **THEN** the artifact is marked as completed
+
+#### Scenario: Glob pattern empty
+- **WHEN** an artifact generates "specs/*.md" and the specs/ directory is empty or missing
+- **THEN** the artifact is not marked as completed
+
+#### Scenario: Missing change directory
+- **WHEN** the change directory does not exist
+- **THEN** all artifacts are marked as not completed (empty state)
+
+### Requirement: Ready Artifact Query
+The system SHALL identify which artifacts are ready to be created based on dependency completion.
+
+#### Scenario: Root artifacts ready initially
+- **WHEN** no artifacts are completed
+- **THEN** getNextArtifacts() returns artifacts with no dependencies
+
+#### Scenario: Dependent artifact becomes ready
+- **WHEN** an artifact's dependencies are all completed
+- **THEN** getNextArtifacts() includes that artifact
+
+#### Scenario: Blocked artifacts excluded
+- **WHEN** an artifact has uncompleted dependencies
+- **THEN** getNextArtifacts() does not include that artifact
+
+### Requirement: Completion Check
+The system SHALL determine when all artifacts in a graph are complete.
+
+#### Scenario: All complete
+- **WHEN** all artifacts in the graph are in the completed set
+- **THEN** isComplete() returns true
+
+#### Scenario: Partially complete
+- **WHEN** some artifacts in the graph are not completed
+- **THEN** isComplete() returns false
+
+### Requirement: Blocked Query
+The system SHALL identify which artifacts are blocked and return all their unmet dependencies.
+
+#### Scenario: Artifact blocked by single dependency
+- **WHEN** artifact B requires artifact A and A is not complete
+- **THEN** getBlocked() returns `{ B: ['A'] }`
+
+#### Scenario: Artifact blocked by multiple dependencies
+- **WHEN** artifact C requires A and B, and only A is complete
+- **THEN** getBlocked() returns `{ C: ['B'] }`
+
+#### Scenario: Artifact blocked by all dependencies
+- **WHEN** artifact C requires A and B, and neither is complete
+- **THEN** getBlocked() returns `{ C: ['A', 'B'] }`

openspec/changes/archive/2025-12-24-add-artifact-graph-core/tasks.md

@@ -0,0 +1,61 @@
+## 1. Type Definitions
+- [x] 1.1 Create `src/core/artifact-graph/types.ts` with Zod schemas (`ArtifactSchema`, `SchemaYamlSchema`) and inferred types via `z.infer<>`
+- [x] 1.2 Define `CompletedSet` (Set<string>), `BlockedArtifacts`, and `ArtifactGraphResult` types for runtime state
+
+## 2. Schema Parser
+- [x] 2.1 Create `src/core/artifact-graph/schema.ts` with YAML loading and Zod validation via `.safeParse()`
+- [x] 2.2 Implement dependency reference validation (ensure `requires` references valid artifact IDs)
+- [x] 2.3 Implement duplicate artifact ID detection
+- [x] 2.4 Add cycle detection during schema load (error format: "Cyclic dependency detected: A → B → C → A")
+
+## 3. Artifact Graph Core
+- [x] 3.1 Create `src/core/artifact-graph/graph.ts` with ArtifactGraph class
+- [x] 3.2 Implement `fromYaml(path)` - load graph from schema file
+- [x] 3.3 Implement `getBuildOrder()` - topological sort via Kahn's algorithm
+- [x] 3.4 Implement `getArtifact(id)` - retrieve single artifact definition
+- [x] 3.5 Implement `getAllArtifacts()` - list all artifacts
+
+## 4. State Detection
+- [x] 4.1 Create `src/core/artifact-graph/state.ts` with state detection logic
+- [x] 4.2 Implement file existence checking for simple paths
+- [x] 4.3 Implement glob pattern matching for multi-file artifacts
+- [x] 4.4 Implement `detectCompleted(graph, changeDir)` - scan filesystem and return CompletedSet
+- [x] 4.5 Handle missing changeDir gracefully (return empty CompletedSet)
+
+## 5. Ready Calculation
+- [x] 5.1 Implement `getNextArtifacts(graph, completed)` - find artifacts with all deps completed
+- [x] 5.2 Implement `isComplete(graph, completed)` - check if all artifacts done
+- [x] 5.3 Implement `getBlocked(graph, completed)` - return BlockedArtifacts map (artifact → unmet deps)
+
+## 6. Schema Resolution
+- [x] 6.1 Create `src/core/artifact-graph/resolver.ts` with schema resolution logic
+- [x] 6.2 Add `getGlobalDataDir()` to `src/core/global-config.ts` (XDG_DATA_HOME with platform fallbacks)
+- [x] 6.3 Implement `resolveSchema(name)` - global (`${XDG_DATA_HOME}/openspec/schemas/`) → built-in fallback
+
+## 7. Built-in Schemas
+- [x] 7.1 Create `src/core/artifact-graph/schemas/spec-driven.yaml` (default: proposal → specs → design → tasks)
+- [x] 7.2 Create `src/core/artifact-graph/schemas/tdd.yaml` (alternative: tests → implementation → docs)
+
+## 8. Integration
+- [x] 8.1 Create `src/core/artifact-graph/index.ts` with public exports
+
+## 9. Testing
+- [x] 9.1 Test: Parse valid schema YAML returns correct artifact graph
+- [x] 9.2 Test: Parse invalid schema (missing fields) throws descriptive error
+- [x] 9.3 Test: Duplicate artifact IDs throws error
+- [x] 9.4 Test: Invalid `requires` reference throws error identifying the invalid ID
+- [x] 9.5 Test: Cycle in schema throws error listing cycle path (e.g., "A → B → C → A")
+- [x] 9.6 Test: Compute build order returns correct topological ordering (linear chain)
+- [x] 9.7 Test: Compute build order handles diamond dependencies correctly
+- [x] 9.8 Test: Independent artifacts return in stable order
+- [x] 9.9 Test: Empty/missing changeDir returns empty CompletedSet
+- [x] 9.10 Test: File existence marks artifact as completed
+- [x] 9.11 Test: Glob pattern specs/*.md detected as complete when files exist
+- [x] 9.12 Test: Glob pattern with empty directory not marked complete
+- [x] 9.13 Test: getNextArtifacts returns only root artifacts when nothing completed
+- [x] 9.14 Test: getNextArtifacts includes artifact when all deps completed
+- [x] 9.15 Test: getBlocked returns artifact with all unmet dependencies listed
+- [x] 9.16 Test: isComplete() returns true when all artifacts completed
+- [x] 9.17 Test: isComplete() returns false when some artifacts incomplete
+- [x] 9.18 Test: Schema resolution finds global override before built-in
+- [x] 9.19 Test: Schema resolution falls back to built-in when no global

openspec/changes/archive/2025-12-25-add-change-manager/design.md

@@ -0,0 +1,74 @@
+## Context
+
+This is Slice 2 of the artifact tracker POC. The goal is to provide utilities for creating change directories programmatically.
+
+**Current state:** No programmatic way to create changes. Users must manually create directories.
+
+**Proposed state:** Utility functions for change creation with name validation.
+
+## Goals / Non-Goals
+
+### Goals
+- **Add** `createChange()` function to create change directories
+- **Add** `validateChangeName()` function for kebab-case validation
+- **Enable** automation (Claude commands, scripts) to create changes
+
+### Non-Goals
+- Refactor existing CLI commands (they work fine)
+- Create abstraction layers or manager classes
+- Change how `ListCommand` or `ChangeCommand` work
+
+## Decisions
+
+### Decision 1: Simple Utility Functions
+
+**Choice**: Add functions to `src/utils/change-utils.ts` - no class.
+
+```typescript
+// src/utils/change-utils.ts
+
+export function validateChangeName(name: string): { valid: boolean; error?: string }
+
+export async function createChange(
+  projectRoot: string,
+  name: string
+): Promise<void>
+```
+
+**Why**:
+- Simple, no abstraction overhead
+- Easy to test
+- Easy to import where needed
+- Matches existing utility patterns in `src/utils/`
+
+**Alternatives considered**:
+- ChangeManager class: Rejected - over-engineered for 2 functions
+- Add to existing command: Rejected - mixes CLI with reusable logic
+
+### Decision 2: Kebab-Case Validation Pattern
+
+**Choice**: Validate names with `^[a-z][a-z0-9]*(-[a-z0-9]+)*$`
+
+Valid: `add-auth`, `refactor-db`, `add-feature-2`, `refactor`
+Invalid: `Add-Auth`, `add auth`, `add_auth`, `-add-auth`, `add-auth-`, `add--auth`
+
+**Why**:
+- Filesystem-safe (no special characters)
+- URL-safe (for future web UI)
+- Consistent with existing change naming in repo
+
+## File Changes
+
+### New Files
+- `src/utils/change-utils.ts` - Utility functions
+- `src/utils/change-utils.test.ts` - Unit tests
+
+### Modified Files
+- None
+
+## Risks / Trade-offs
+
+| Risk | Mitigation |
+|------|------------|
+| Function might not cover all use cases | Start simple, extend if needed |
+| Naming conflicts with future work | Using clear, specific function names |

openspec/changes/archive/2025-12-25-add-change-manager/proposal.md

@@ -0,0 +1,45 @@
+## Why
+
+There's no programmatic way to create a new change directory. Users must manually:
+1. Create `openspec/changes/<name>/` directory
+2. Create a `proposal.md` file
+3. Hope they got the naming right
+
+This is error-prone and blocks automation (e.g., Claude commands, scripts).
+
+**This proposal adds:**
+1. `createChange(projectRoot, name)` - Create change directories programmatically
+2. `validateChangeName(name)` - Enforce kebab-case naming conventions
+
+## What Changes
+
+### New Utilities
+
+| Function | Description |
+|----------|-------------|
+| `createChange(projectRoot, name)` | Creates `openspec/changes/<name>/` directory |
+| `validateChangeName(name)` | Returns `{ valid: boolean; error?: string }` |
+
+### Name Validation Rules
+
+Pattern: `^[a-z][a-z0-9]*(-[a-z0-9]+)*$`
+
+| Valid | Invalid |
+|-------|---------|
+| `add-auth` | `Add-Auth` (uppercase) |
+| `refactor-db` | `add auth` (spaces) |
+| `add-feature-2` | `add_auth` (underscores) |
+| `refactor` | `-add-auth` (leading hyphen) |
+
+### Location
+
+New file: `src/utils/change-utils.ts`
+
+Simple utility functions - no class, no abstraction layer.
+
+## Impact
+
+- **Affected specs**: None
+- **Affected code**: None (new utilities only)
+- **New files**: `src/utils/change-utils.ts`
+- **Breaking changes**: None

openspec/changes/archive/2025-12-25-add-change-manager/specs/change-creation/spec.md

@@ -0,0 +1,63 @@
+## ADDED Requirements
+
+### Requirement: Change Creation
+The system SHALL provide a function to create new change directories programmatically.
+
+#### Scenario: Create change
+- **WHEN** `createChange(projectRoot, 'add-auth')` is called
+- **THEN** the system creates `openspec/changes/add-auth/` directory
+
+#### Scenario: Duplicate change rejected
+- **WHEN** `createChange(projectRoot, 'add-auth')` is called and `openspec/changes/add-auth/` already exists
+- **THEN** the system throws an error indicating the change already exists
+
+#### Scenario: Creates parent directories if needed
+- **WHEN** `createChange(projectRoot, 'add-auth')` is called and `openspec/changes/` does not exist
+- **THEN** the system creates the full path including parent directories
+
+#### Scenario: Invalid change name rejected
+- **WHEN** `createChange(projectRoot, 'Add Auth')` is called with an invalid name
+- **THEN** the system throws a validation error
+
+### Requirement: Change Name Validation
+The system SHALL validate change names follow kebab-case conventions.
+
+#### Scenario: Valid kebab-case name accepted
+- **WHEN** a change name like `add-user-auth` is validated
+- **THEN** validation returns `{ valid: true }`
+
+#### Scenario: Numeric suffixes accepted
+- **WHEN** a change name like `add-feature-2` is validated
+- **THEN** validation returns `{ valid: true }`
+
+#### Scenario: Single word accepted
+- **WHEN** a change name like `refactor` is validated
+- **THEN** validation returns `{ valid: true }`
+
+#### Scenario: Uppercase characters rejected
+- **WHEN** a change name like `Add-Auth` is validated
+- **THEN** validation returns `{ valid: false, error: "..." }`
+
+#### Scenario: Spaces rejected
+- **WHEN** a change name like `add auth` is validated
+- **THEN** validation returns `{ valid: false, error: "..." }`
+
+#### Scenario: Underscores rejected
+- **WHEN** a change name like `add_auth` is validated
+- **THEN** validation returns `{ valid: false, error: "..." }`
+
+#### Scenario: Special characters rejected
+- **WHEN** a change name like `add-auth!` is validated
+- **THEN** validation returns `{ valid: false, error: "..." }`
+
+#### Scenario: Leading hyphen rejected
+- **WHEN** a change name like `-add-auth` is validated
+- **THEN** validation returns `{ valid: false, error: "..." }`
+
+#### Scenario: Trailing hyphen rejected
+- **WHEN** a change name like `add-auth-` is validated
+- **THEN** validation returns `{ valid: false, error: "..." }`
+
+#### Scenario: Consecutive hyphens rejected
+- **WHEN** a change name like `add--auth` is validated
+- **THEN** validation returns `{ valid: false, error: "..." }`

openspec/changes/archive/2025-12-25-add-change-manager/tasks.md

@@ -0,0 +1,30 @@
+## Phase 1: Implement Name Validation
+
+- [x] 1.1 Create `src/utils/change-utils.ts`
+- [x] 1.2 Implement `validateChangeName()` with kebab-case pattern
+- [x] 1.3 Pattern: `^[a-z][a-z0-9]*(-[a-z0-9]+)*$`
+- [x] 1.4 Return `{ valid: boolean; error?: string }`
+- [x] 1.5 Add test: valid names accepted (`add-auth`, `refactor`, `add-feature-2`)
+- [x] 1.6 Add test: uppercase rejected
+- [x] 1.7 Add test: spaces rejected
+- [x] 1.8 Add test: underscores rejected
+- [x] 1.9 Add test: special characters rejected
+- [x] 1.10 Add test: leading/trailing hyphens rejected
+- [x] 1.11 Add test: consecutive hyphens rejected
+
+## Phase 2: Implement Change Creation
+
+- [x] 2.1 Implement `createChange(projectRoot, name)`
+- [x] 2.2 Validate name before creating
+- [x] 2.3 Create parent directories if needed (`openspec/changes/`)
+- [x] 2.4 Throw if change already exists
+- [x] 2.5 Add test: creates directory
+- [x] 2.6 Add test: duplicate change throws error
+- [x] 2.7 Add test: invalid name throws validation error
+- [x] 2.8 Add test: creates parent directories if needed
+
+## Phase 3: Integration
+
+- [x] 3.1 Export functions from `src/utils/index.ts`
+- [x] 3.2 Add JSDoc comments
+- [x] 3.3 Run all tests to verify no regressions

openspec/changes/archive/2025-12-28-add-artifact-workflow-cli/design.md

@@ -0,0 +1,112 @@
+## Context
+
+Slice 4 of the artifact workflow POC. The core functionality (ArtifactGraph, InstructionLoader, change-utils) is complete. This slice adds CLI commands to expose the artifact workflow to users.
+
+**Key constraint**: This is experimental. Commands must be isolated for easy removal if the feature doesn't work out.
+
+## Goals / Non-Goals
+
+- **Goals:**
+  - Expose artifact workflow status and instructions via CLI
+  - Provide fluid UX with top-level verb commands
+  - Support both human-readable and JSON output
+  - Enable agents to programmatically query workflow state
+  - Keep implementation isolated for easy removal
+
+- **Non-Goals:**
+  - Interactive artifact creation wizards (future work)
+  - Schema management commands (deferred)
+  - Auto-detection of active change (CLI is deterministic, agents infer)
+
+## Decisions
+
+### Command Structure: Top-Level Verbs
+
+Commands are top-level for maximum fluidity:
+
+```
+openspec status --change <id>
+openspec next --change <id>
+openspec instructions <artifact> --change <id>
+openspec templates [--schema <name>]
+openspec new change <name>
+```
+
+**Rationale:**
+- Most fluid UX - fewest keystrokes
+- Commands are unique enough to avoid conflicts
+- Simple mental model for users
+
+**Trade-off accepted:** Slight namespace pollution, but commands are distinct and can be removed cleanly.
+
+### Experimental Isolation
+
+All artifact workflow commands are implemented in a single file:
+
+```
+src/commands/artifact-workflow.ts
+```
+
+**To remove the feature:**
+1. Delete `src/commands/artifact-workflow.ts`
+2. Remove ~5 lines from `src/cli/index.ts`
+
+No other files touched, no risk to stable functionality.
+
+### Deterministic CLI with Explicit `--change`
+
+All change-specific commands require `--change <id>`:
+
+```bash
+openspec status --change add-auth   # explicit, works
+openspec status                      # error: missing --change
+```
+
+**Rationale:**
+- CLI is pure, testable, no hidden state
+- Agents infer change from conversation and pass explicitly
+- No config file tracking "active change"
+- Consistent with POC design philosophy
+
+### New Change Command Structure
+
+Creating changes uses explicit subcommand:
+
+```bash
+openspec new change add-feature
+```
+
+**Rationale:**
+- `openspec new <name>` is ambiguous (new what?)
+- `openspec new change <name>` is clear and extensible
+- Can add `openspec new spec <name>` later if needed
+
+### Output Formats
+
+- **Default**: Human-readable text with visual indicators
+  - Status: `[x]` done, `[ ]` ready, `[-]` blocked
+  - Colors: green (done), yellow (ready), red (blocked)
+- **JSON** (`--json`): Machine-readable for scripts and agents
+
+### Error Handling
+
+- Missing `--change`: Error listing available changes
+- Unknown change: Error with suggestion
+- Unknown artifact: Error listing valid artifacts
+- Missing schema: Error with schema resolution details
+
+## Risks / Trade-offs
+
+| Risk | Mitigation |
+|------|------------|
+| Top-level commands pollute namespace | Commands are distinct; isolated for easy removal |
+| `status` confused with git | Context (`--change`) makes it clear |
+| Feature doesn't work out | Single file deletion removes everything |
+
+## Implementation Notes
+
+- All commands in `src/commands/artifact-workflow.ts`
+- Imports from `src/core/artifact-graph/` for all operations
+- Uses `getActiveChangeIds()` from `item-discovery.ts` for change listing
+- Follows existing CLI patterns (ora spinners, commander.js options)
+- Help text marks commands as "Experimental"

openspec/changes/archive/2025-12-28-add-artifact-workflow-cli/proposal.md

@@ -0,0 +1,33 @@
+## Why
+
+The ArtifactGraph (Slice 1) and InstructionLoader (Slice 3) provide programmatic APIs for artifact-based workflow management. Users currently have no CLI interface to:
+- See artifact completion status for a change
+- Discover what artifacts are ready to create
+- Get enriched instructions for creating artifacts
+- Create new changes with proper validation
+
+This proposal adds CLI commands that expose the artifact workflow functionality to users and agents.
+
+## What Changes
+
+- **NEW**: `openspec status --change <id>` shows artifact completion state
+- **NEW**: `openspec next --change <id>` shows artifacts ready to create
+- **NEW**: `openspec instructions <artifact> --change <id>` outputs enriched template
+- **NEW**: `openspec templates [--schema <name>]` shows resolved template paths
+- **NEW**: `openspec new change <name>` creates a new change directory
+
+All commands are top-level for fluid UX. They integrate with existing core modules:
+- Uses `loadChangeContext()`, `formatChangeStatus()`, `generateInstructions()` from instruction-loader
+- Uses `ArtifactGraph`, `detectCompleted()` from artifact-graph
+- Uses `createChange()`, `validateChangeName()` from change-utils
+
+**Experimental isolation**: All commands are implemented in a single file (`src/commands/artifact-workflow.ts`) for easy removal if the feature doesn't work out. Help text marks them as experimental.
+
+## Impact
+
+- Affected specs: NEW `cli-artifact-workflow` capability
+- Affected code:
+  - `src/cli/index.ts` - register new commands
+  - `src/commands/artifact-workflow.ts` - new command implementations
+- No changes to existing commands or specs
+- Builds on completed Slice 1, 2, and 3 implementations

openspec/changes/archive/2025-12-28-add-artifact-workflow-cli/specs/cli-artifact-workflow/spec.md

@@ -0,0 +1,153 @@
+# cli-artifact-workflow Specification
+
+## Purpose
+CLI commands for artifact workflow operations, exposing the artifact graph and instruction loader functionality to users and agents. Commands are top-level for fluid UX and implemented in isolation for easy removal.
+
+## ADDED Requirements
+
+### Requirement: Status Command
+The system SHALL display artifact completion status for a change.
+
+#### Scenario: Show status with all states
+- **WHEN** user runs `openspec status --change <id>`
+- **THEN** the system displays each artifact with status indicator:
+  - `[x]` for completed artifacts
+  - `[ ]` for ready artifacts
+  - `[-]` for blocked artifacts (with missing dependencies listed)
+
+#### Scenario: Status shows completion summary
+- **WHEN** user runs `openspec status --change <id>`
+- **THEN** output includes completion percentage and count (e.g., "2/4 artifacts complete")
+
+#### Scenario: Status JSON output
+- **WHEN** user runs `openspec status --change <id> --json`
+- **THEN** the system outputs JSON with changeName, schemaName, isComplete, and artifacts array
+
+#### Scenario: Missing change parameter
+- **WHEN** user runs `openspec status` without `--change`
+- **THEN** the system displays an error with list of available changes
+
+#### Scenario: Unknown change
+- **WHEN** user runs `openspec status --change unknown-id`
+- **THEN** the system displays an error indicating the change does not exist
+
+### Requirement: Next Command
+The system SHALL show which artifacts are ready to be created.
+
+#### Scenario: Show ready artifacts
+- **WHEN** user runs `openspec next --change <id>`
+- **THEN** the system lists artifacts whose dependencies are all satisfied
+
+#### Scenario: No artifacts ready
+- **WHEN** all artifacts are either completed or blocked
+- **THEN** the system indicates no artifacts are ready (with explanation)
+
+#### Scenario: All artifacts complete
+- **WHEN** all artifacts in the change are completed
+- **THEN** the system indicates the change is complete
+
+#### Scenario: Next JSON output
+- **WHEN** user runs `openspec next --change <id> --json`
+- **THEN** the system outputs JSON array of ready artifact IDs
+
+### Requirement: Instructions Command
+The system SHALL output enriched instructions for creating an artifact.
+
+#### Scenario: Show enriched instructions
+- **WHEN** user runs `openspec instructions <artifact> --change <id>`
+- **THEN** the system outputs:
+  - Artifact metadata (ID, output path, description)
+  - Template content
+  - Dependency status (done/missing)
+  - Unlocked artifacts (what becomes available after completion)
+
+#### Scenario: Instructions JSON output
+- **WHEN** user runs `openspec instructions <artifact> --change <id> --json`
+- **THEN** the system outputs JSON matching ArtifactInstructions interface
+
+#### Scenario: Unknown artifact
+- **WHEN** user runs `openspec instructions unknown-artifact --change <id>`
+- **THEN** the system displays an error listing valid artifact IDs for the schema
+
+#### Scenario: Artifact with unmet dependencies
+- **WHEN** user requests instructions for a blocked artifact
+- **THEN** the system displays instructions with a warning about missing dependencies
+
+### Requirement: Templates Command
+The system SHALL show resolved template paths for all artifacts in a schema.
+
+#### Scenario: List template paths with default schema
+- **WHEN** user runs `openspec templates`
+- **THEN** the system displays each artifact with its resolved template path using the default schema
+
+#### Scenario: List template paths with custom schema
+- **WHEN** user runs `openspec templates --schema tdd`
+- **THEN** the system displays template paths for the specified schema
+
+#### Scenario: Templates JSON output
+- **WHEN** user runs `openspec templates --json`
+- **THEN** the system outputs JSON mapping artifact IDs to template paths
+
+#### Scenario: Template resolution source
+- **WHEN** displaying template paths
+- **THEN** the system indicates whether each template is from user override or package built-in
+
+### Requirement: New Change Command
+The system SHALL create new change directories with validation.
+
+#### Scenario: Create valid change
+- **WHEN** user runs `openspec new change add-feature`
+- **THEN** the system creates `openspec/changes/add-feature/` directory
+
+#### Scenario: Invalid change name
+- **WHEN** user runs `openspec new change "Add Feature"` with invalid name
+- **THEN** the system displays validation error with guidance
+
+#### Scenario: Duplicate change name
+- **WHEN** user runs `openspec new change existing-change` for an existing change
+- **THEN** the system displays an error indicating the change already exists
+
+#### Scenario: Create with description
+- **WHEN** user runs `openspec new change add-feature --description "Add new feature"`
+- **THEN** the system creates the change directory with description in README.md
+
+### Requirement: Schema Selection
+The system SHALL support custom schema selection for workflow commands.
+
+#### Scenario: Default schema
+- **WHEN** user runs workflow commands without `--schema`
+- **THEN** the system uses the "spec-driven" schema
+
+#### Scenario: Custom schema
+- **WHEN** user runs `openspec status --change <id> --schema tdd`
+- **THEN** the system uses the specified schema for artifact graph
+
+#### Scenario: Unknown schema
+- **WHEN** user specifies an unknown schema
+- **THEN** the system displays an error listing available schemas
+
+### Requirement: Output Formatting
+The system SHALL provide consistent output formatting.
+
+#### Scenario: Color output
+- **WHEN** terminal supports colors
+- **THEN** status indicators use colors: green (done), yellow (ready), red (blocked)
+
+#### Scenario: No color output
+- **WHEN** `--no-color` flag is used or NO_COLOR environment variable is set
+- **THEN** output uses text-only indicators without ANSI colors
+
+#### Scenario: Progress indication
+- **WHEN** loading change state takes time
+- **THEN** the system displays a spinner during loading
+
+### Requirement: Experimental Isolation
+The system SHALL implement artifact workflow commands in isolation for easy removal.
+
+#### Scenario: Single file implementation
+- **WHEN** artifact workflow feature is implemented
+- **THEN** all commands are in `src/commands/artifact-workflow.ts`
+
+#### Scenario: Help text marking
+- **WHEN** user runs `--help` on any artifact workflow command
+- **THEN** help text indicates the command is experimental

openspec/changes/archive/2025-12-28-add-artifact-workflow-cli/tasks.md

@@ -0,0 +1,48 @@
+## 1. Core Command Implementation
+
+- [x] 1.1 Create `src/commands/artifact-workflow.ts` with all commands
+- [x] 1.2 Implement `status` command with text output
+- [x] 1.3 Implement `next` command with text output
+- [x] 1.4 Implement `instructions` command with text output
+- [x] 1.5 Implement `templates` command with text output
+- [x] 1.6 Implement `new change` subcommand using createChange()
+
+## 2. CLI Registration
+
+- [x] 2.1 Register `status` command in `src/cli/index.ts`
+- [x] 2.2 Register `next` command in `src/cli/index.ts`
+- [x] 2.3 Register `instructions` command in `src/cli/index.ts`
+- [x] 2.4 Register `templates` command in `src/cli/index.ts`
+- [x] 2.5 Register `new` command group with `change` subcommand
+
+## 3. Output Formatting
+
+- [x] 3.1 Add `--json` flag support to all commands
+- [x] 3.2 Add color-coded status indicators (done/ready/blocked)
+- [x] 3.3 Add progress spinner for loading operations
+- [x] 3.4 Support `--no-color` flag
+
+## 4. Error Handling
+
+- [x] 4.1 Handle missing `--change` parameter with helpful error
+- [x] 4.2 Handle unknown change names with list of available changes
+- [x] 4.3 Handle unknown artifact names with valid options
+- [x] 4.4 Handle schema resolution errors
+
+## 5. Options and Flags
+
+- [x] 5.1 Add `--schema` option for custom schema selection
+- [x] 5.2 Add `--description` option to `new change` command
+- [x] 5.3 Ensure options follow existing CLI patterns
+
+## 6. Testing
+
+- [x] 6.1 Add smoke tests for each command
+- [x] 6.2 Test error cases (missing change, unknown artifact)
+- [x] 6.3 Test JSON output format
+- [x] 6.4 Test with different schemas
+
+## 7. Documentation
+
+- [x] 7.1 Add help text for all commands marked as "Experimental"
+- [ ] 7.2 Update AGENTS.md with new commands (post-archive)

openspec/changes/archive/2025-12-28-add-instruction-loader/design.md

@@ -0,0 +1,149 @@
+## Context
+
+This is Slice 3 of the artifact-graph POC. We have:
+- `ArtifactGraph` class with graph operations (Slice 1)
+- `detectCompleted()` for filesystem-based state detection (Slice 1)
+- `resolveSchema()` for XDG schema resolution (Slice 1)
+- `createChange()` and `validateChangeName()` utilities (Slice 2)
+
+After `restructure-schema-directories` is implemented, schemas will be self-contained directories:
+```
+schemas/<name>/
+├── schema.yaml
+└── templates/
+    └── *.md
+```
+
+This proposal adds template loading and instruction enrichment on top of that structure.
+
+## Goals / Non-Goals
+
+**Goals:**
+- Load templates from schema directories
+- Enrich templates with change-specific context (dependency status)
+- Format change status for CLI output
+
+**Non-Goals:**
+- Template authoring UI
+- Dynamic template compilation/execution
+- Caching (keep it stateless like the rest)
+
+## Decisions
+
+### 1. Pure functions over classes
+
+Follow the pattern in `resolver.ts` and `state.ts`. Use a simple `ChangeContext` interface with pure functions:
+
+```typescript
+interface ChangeContext {
+  changeName: string;
+  changeDir: string;
+  schemaName: string;
+  graph: ArtifactGraph;
+  completed: CompletedSet;
+}
+
+function loadChangeContext(projectRoot: string, changeName: string, schemaName?: string): ChangeContext
+function loadTemplate(schemaName: string, templatePath: string): string
+function getInstructions(artifactId: string, context: ChangeContext): string
+function formatStatus(context: ChangeContext): string
+```
+
+**Why:** Matches existing codebase patterns. Easier to test. No hidden state.
+
+### 2. Template resolution from schema directory
+
+Templates are loaded from the schema's `templates/` subdirectory:
+
+```typescript
+function loadTemplate(schemaName: string, templatePath: string): string {
+  const schemaDir = getSchemaDir(schemaName);  // From resolver.ts
+  const fullPath = path.join(schemaDir, 'templates', templatePath);
+  return fs.readFileSync(fullPath, 'utf-8');
+}
+```
+
+Resolution is handled by `getSchemaDir()` which already checks user override → package built-in.
+
+**Why:** Leverages existing schema resolution. Templates are co-located with schemas.
+
+### 3. Template path from artifact definition
+
+The artifact's `template` field is a path relative to the schema's `templates/` directory:
+
+```yaml
+artifacts:
+  - id: proposal
+    template: "proposal.md"  # → schemas/<schema>/templates/proposal.md
+```
+
+**Why:** Explicit, simple, no magic.
+
+### 4. Minimal context injection
+
+Templates are markdown. Injection prepends a header section with context:
+
+```markdown
+---
+change: add-auth
+artifact: proposal
+schema: spec-driven
+output: openspec/changes/add-auth/proposal.md
+---
+
+## Dependencies
+- [x] (none - this is a root artifact)
+
+## Next Steps
+After creating this artifact, you can work on: design, specs
+
+---
+
+[original template content...]
+```
+
+**Why:** Simple string concatenation. No template engine dependency. Clear separation.
+
+### 5. Status output format
+
+```markdown
+## Change: add-auth (spec-driven)
+
+| Artifact | Status | Output |
+|----------|--------|--------|
+| proposal | done | proposal.md |
+| specs | ready | specs/*.md |
+| design | blocked (needs: proposal) | design.md |
+| tasks | blocked (needs: specs, design) | tasks.md |
+```
+
+**Why:** Markdown table is readable in terminal and docs. Matches CLI output style.
+
+## File Structure
+
+```
+src/core/artifact-graph/
+├── index.ts              # Add new exports
+├── template.ts           # NEW: Template loading
+├── context.ts            # NEW: ChangeContext loading
+└── instructions.ts       # NEW: Enrichment and formatting
+```
+
+## Risks / Trade-offs
+
+**Dependency on restructure-schema-directories:**
+- This proposal requires the schema restructure to be done first
+- Mitigation: Clear dependency documented, implement in order
+
+**No template engine:**
+- Pro: Zero dependencies, simple code
+- Con: Limited expressiveness
+- Mitigation: Current use case only needs static templates + header injection
+
+## Migration Plan
+
+N/A - new capability, no existing code to migrate.
+
+## Open Questions
+
+None.

openspec/changes/archive/2025-12-28-add-instruction-loader/proposal.md

@@ -0,0 +1,20 @@
+## Why
+
+Slice 1 (artifact-graph) provides graph operations and state detection. Slice 2 (change-utils) provides change creation. We now need the ability to load templates for artifacts and enrich them with change-specific context so users/agents know what to create next.
+
+## What Changes
+
+- Add template resolution from schema directories (uses structure from `restructure-schema-directories`)
+- Add instruction enrichment that injects change context into templates
+- Add status formatting for CLI output
+- New `instruction-loader` capability
+
+## Dependencies
+
+- Requires `restructure-schema-directories` to be implemented first (schemas as directories with co-located templates)
+
+## Impact
+
+- Affected specs: New `instruction-loader` spec
+- Affected code: `src/core/artifact-graph/` (new files)
+- Builds on: `artifact-graph` (Slice 1), uses `ArtifactGraph`, `detectCompleted`, `resolveSchema`

openspec/changes/archive/2025-12-28-add-instruction-loader/specs/instruction-loader/spec.md

@@ -0,0 +1,70 @@
+# instruction-loader Specification
+
+## Purpose
+Load templates from schema directories and enrich them with change-specific context for guiding artifact creation.
+
+## ADDED Requirements
+
+### Requirement: Template Loading
+The system SHALL load templates from schema directories.
+
+#### Scenario: Load template from schema directory
+- **WHEN** `loadTemplate(schemaName, templatePath)` is called
+- **THEN** the system loads the template from `schemas/<schemaName>/templates/<templatePath>`
+
+#### Scenario: Template file not found
+- **WHEN** a template file does not exist in the schema's templates directory
+- **THEN** the system throws an error with the template path
+
+### Requirement: Change Context Loading
+The system SHALL load change context combining graph and completion state.
+
+#### Scenario: Load context for existing change
+- **WHEN** `loadChangeContext(projectRoot, changeName)` is called for an existing change
+- **THEN** the system returns a context with graph, completed set, schema name, and change info
+
+#### Scenario: Load context with custom schema
+- **WHEN** `loadChangeContext(projectRoot, changeName, schemaName)` is called
+- **THEN** the system uses the specified schema instead of default
+
+#### Scenario: Load context for non-existent change directory
+- **WHEN** `loadChangeContext` is called for a non-existent change directory
+- **THEN** the system returns context with empty completed set
+
+### Requirement: Template Enrichment
+The system SHALL enrich templates with change-specific context.
+
+#### Scenario: Include artifact metadata
+- **WHEN** instructions are generated for an artifact
+- **THEN** the output includes change name, artifact ID, schema name, and output path
+
+#### Scenario: Include dependency status
+- **WHEN** an artifact has dependencies
+- **THEN** the output shows each dependency with completion status (done/missing)
+
+#### Scenario: Include unlocked artifacts
+- **WHEN** instructions are generated
+- **THEN** the output includes which artifacts become available after this one
+
+#### Scenario: Root artifact indicator
+- **WHEN** an artifact has no dependencies
+- **THEN** the dependency section indicates this is a root artifact
+
+### Requirement: Status Formatting
+The system SHALL format change status as readable output.
+
+#### Scenario: All artifacts completed
+- **WHEN** all artifacts are completed
+- **THEN** status shows all artifacts as "done"
+
+#### Scenario: Mixed completion status
+- **WHEN** some artifacts are completed
+- **THEN** status shows completed as "done", ready as "ready", blocked as "blocked"
+
+#### Scenario: Blocked artifact details
+- **WHEN** an artifact is blocked
+- **THEN** status shows which dependencies are missing
+
+#### Scenario: Include output paths
+- **WHEN** status is formatted
+- **THEN** each artifact shows its output path pattern

openspec/changes/archive/2025-12-28-add-instruction-loader/tasks.md

@@ -0,0 +1,13 @@
+# Tasks
+
+## Implementation Tasks
+
+- [x] Create `instruction-loader` spec in `openspec/specs/instruction-loader/spec.md`
+- [x] Implement `loadTemplate` function to load templates from schema directories
+- [x] Implement `loadChangeContext` function to combine graph and completion state
+- [x] Implement `generateInstructions` function to enrich templates with change context
+- [x] Implement `formatChangeStatus` function for readable status output
+- [x] Export new functions from `src/core/artifact-graph/index.ts`
+- [x] Add comprehensive tests in `test/core/artifact-graph/instruction-loader.test.ts`
+- [x] Verify build passes
+- [x] Verify all tests pass

openspec/changes/archive/2025-12-28-restructure-schema-directories/design.md

@@ -0,0 +1,129 @@
+## Context
+
+Built-in schemas are currently embedded as TypeScript objects:
+
+```typescript
+// src/core/artifact-graph/builtin-schemas.ts
+export const SPEC_DRIVEN_SCHEMA: SchemaYaml = {
+  name: 'spec-driven',
+  version: 1,
+  artifacts: [...]
+};
+```
+
+This doesn't support templates co-located with schemas. The instruction loader (Slice 3) needs templates, and the cleanest approach is self-contained schema directories.
+
+## Goals / Non-Goals
+
+**Goals:**
+- Schemas as self-contained directories (schema.yaml + templates/)
+- User overrides via XDG data directory
+- Simple 2-level resolution (user → package)
+- Templates co-located with their schema
+
+**Non-Goals:**
+- Shared template fallback (intentionally avoiding complexity)
+- Runtime schema compilation
+- Schema inheritance
+
+## Decisions
+
+### 1. Directory structure
+
+Each schema is a directory containing `schema.yaml` and `templates/`:
+
+```
+<package>/schemas/
+├── spec-driven/
+│   ├── schema.yaml
+│   └── templates/
+│       ├── proposal.md
+│       ├── design.md
+│       ├── spec.md
+│       └── tasks.md
+└── tdd/
+    ├── schema.yaml
+    └── templates/
+        ├── spec.md
+        ├── test.md
+        ├── implementation.md
+        └── docs.md
+```
+
+**Why:** Self-contained like Helm charts. No cross-schema dependencies. Each schema owns its templates.
+
+### 2. Resolution order (2 levels)
+
+```
+1. ${XDG_DATA_HOME}/openspec/schemas/<name>/schema.yaml   # User override
+2. <package>/schemas/<name>/schema.yaml                    # Built-in
+3. Error (not found)
+```
+
+**Why:** Simple mental model. User can override entire schema directory or just parts.
+
+### 3. Template path in schema.yaml
+
+The `template` field is relative to the schema's `templates/` directory:
+
+```yaml
+# schemas/spec-driven/schema.yaml
+artifacts:
+  - id: proposal
+    template: "proposal.md"  # → schemas/spec-driven/templates/proposal.md
+```
+
+**Why:** Paths are relative to the schema, not a global templates directory.
+
+### 4. Resolve package directory via import.meta.url
+
+```typescript
+function getPackageSchemasDir(): string {
+  const currentFile = fileURLToPath(import.meta.url);
+  // Navigate from src/core/artifact-graph/ to package root
+  return path.join(path.dirname(currentFile), '..', '..', '..', 'schemas');
+}
+```
+
+**Why:** Works in ESM. No hardcoded paths.
+
+### 5. Keep schema.yaml format unchanged
+
+The YAML format stays the same - only the storage location changes:
+
+```yaml
+name: spec-driven
+version: 1
+description: Specification-driven development
+artifacts:
+  - id: proposal
+    generates: "proposal.md"
+    template: "proposal.md"
+    requires: []
+```
+
+**Why:** No breaking changes to schema format. Just moving from TS to YAML files.
+
+## Migration
+
+1. Create `schemas/` directory at package root
+2. Convert `SPEC_DRIVEN_SCHEMA` to `schemas/spec-driven/schema.yaml`
+3. Convert `TDD_SCHEMA` to `schemas/tdd/schema.yaml`
+4. Update `resolveSchema()` to load from directories
+5. Remove `builtin-schemas.ts`
+6. Update `listSchemas()` to scan directories
+
+## Risks / Trade-offs
+
+**File I/O at runtime:**
+- Previously schemas were in-memory objects
+- Now requires reading YAML files
+- Mitigation: Schemas are small, loaded once per operation
+
+**Package distribution:**
+- Must ensure `schemas/` directory is included in npm package
+- Add to `files` in package.json
+
+## Open Questions
+
+None.

openspec/changes/archive/2025-12-28-restructure-schema-directories/proposal.md

@@ -0,0 +1,20 @@
+## Why
+
+Currently, built-in schemas are embedded as TypeScript objects in `builtin-schemas.ts`. This works for schemas but doesn't support co-located templates. To enable self-contained schema packages (schema + templates together), we need to restructure schemas as directories.
+
+## What Changes
+
+- **BREAKING (internal):** Move built-in schemas from embedded TS objects to actual directory structure
+- Schemas become directories containing `schema.yaml` + `templates/`
+- Update `resolveSchema()` to load from directory structure
+- Remove `builtin-schemas.ts` (replaced by file-based schemas)
+- Update resolution to check user dir → package dir
+
+## Impact
+
+- Affected specs: `artifact-graph` (schema resolution changes)
+- Affected code:
+  - Remove `src/core/artifact-graph/builtin-schemas.ts`
+  - Update `src/core/artifact-graph/resolver.ts`
+  - Add `schemas/` directory at package root
+- No external API changes (resolution still returns `SchemaYaml`)

openspec/changes/archive/2025-12-28-restructure-schema-directories/specs/artifact-graph/spec.md

@@ -0,0 +1,49 @@
+## MODIFIED Requirements
+
+### Requirement: Schema Loading
+The system SHALL load artifact graph definitions from YAML schema files within schema directories.
+
+#### Scenario: Valid schema loaded
+- **WHEN** a schema directory contains a valid `schema.yaml` file
+- **THEN** the system returns an ArtifactGraph with all artifacts and dependencies
+
+#### Scenario: Invalid schema rejected
+- **WHEN** a schema YAML file is missing required fields
+- **THEN** the system throws an error with a descriptive message
+
+#### Scenario: Cyclic dependencies detected
+- **WHEN** a schema contains cyclic artifact dependencies
+- **THEN** the system throws an error listing the artifact IDs in the cycle
+
+#### Scenario: Invalid dependency reference
+- **WHEN** an artifact's `requires` array references a non-existent artifact ID
+- **THEN** the system throws an error identifying the invalid reference
+
+#### Scenario: Duplicate artifact IDs rejected
+- **WHEN** a schema contains multiple artifacts with the same ID
+- **THEN** the system throws an error identifying the duplicate
+
+#### Scenario: Schema directory not found
+- **WHEN** resolving a schema name that has no corresponding directory
+- **THEN** the system throws an error listing available schemas
+
+## ADDED Requirements
+
+### Requirement: Schema Directory Structure
+The system SHALL support self-contained schema directories with co-located templates.
+
+#### Scenario: Schema with templates
+- **WHEN** a schema directory contains `schema.yaml` and `templates/` subdirectory
+- **THEN** artifacts can reference templates relative to the schema's templates directory
+
+#### Scenario: User schema override
+- **WHEN** a schema directory exists at `${XDG_DATA_HOME}/openspec/schemas/<name>/`
+- **THEN** the system uses that directory instead of the built-in
+
+#### Scenario: Built-in schema fallback
+- **WHEN** no user override exists for a schema
+- **THEN** the system uses the package built-in schema directory
+
+#### Scenario: List available schemas
+- **WHEN** listing schemas
+- **THEN** the system returns schema names from both user and package directories

openspec/changes/archive/2025-12-28-restructure-schema-directories/tasks.md

@@ -0,0 +1,32 @@
+## 1. Create Schema Directories
+
+- [ ] 1.1 Create `schemas/` directory at package root
+- [ ] 1.2 Create `schemas/spec-driven/schema.yaml` from `SPEC_DRIVEN_SCHEMA`
+- [ ] 1.3 Create `schemas/spec-driven/templates/` with placeholder templates
+- [ ] 1.4 Create `schemas/tdd/schema.yaml` from `TDD_SCHEMA`
+- [ ] 1.5 Create `schemas/tdd/templates/` with placeholder templates
+
+## 2. Update Schema Resolution
+
+- [ ] 2.1 Add `getPackageSchemasDir()` function using `import.meta.url`
+- [ ] 2.2 Add `getSchemaDir(name)` to resolve schema directory path
+- [ ] 2.3 Update `resolveSchema()` to load from directory structure
+- [ ] 2.4 Update `listSchemas()` to scan directories instead of object keys
+- [ ] 2.5 Add tests for user override resolution
+- [ ] 2.6 Add tests for built-in fallback
+
+## 3. Cleanup
+
+- [ ] 3.1 Remove `builtin-schemas.ts`
+- [ ] 3.2 Update `index.ts` exports (remove `BUILTIN_SCHEMAS`, `SPEC_DRIVEN_SCHEMA`, `TDD_SCHEMA`)
+- [ ] 3.3 Update any code that imports removed exports
+
+## 4. Package Distribution
+
+- [ ] 4.1 Add `schemas/` to `files` array in `package.json`
+- [ ] 4.2 Verify schemas are included in built package
+
+## 5. Fix Template Paths
+
+- [ ] 5.1 Update `template` field in schema.yaml files (remove `templates/` prefix)
+- [ ] 5.2 Ensure template paths are relative to schema's templates directory

openspec/changes/archive/2025-12-29-unify-change-state-model/design.md

@@ -0,0 +1,151 @@
+# Design: Unify Change State Model
+
+## Overview
+
+This change fixes two bugs with minimal disruption to the existing system:
+
+1. **View bug**: Empty changes incorrectly shown as "Completed"
+2. **Artifact workflow bug**: Commands fail on scaffolded changes
+
+## Key Design Decision: Two Systems, Two Purposes
+
+The task-based and artifact-based systems serve **different purposes** and should coexist:
+
+| System | Purpose | Used By |
+|--------|---------|---------|
+| **Task Progress** | Track implementation work | `openspec view`, `openspec list` |
+| **Artifact Progress** | Track planning/spec work | `openspec status`, `openspec next` |
+
+We do NOT merge these systems. Instead, we fix each to work correctly in its domain.
+
+## Change 1: Fix View Command
+
+### Current Logic (Buggy)
+
+```typescript
+// view.ts line 90
+if (progress.total === 0 || progress.completed === progress.total) {
+  completed.push({ name: entry.name });
+}
+```
+
+Problem: `total === 0` means "no tasks defined yet", not "all tasks done".
+
+### New Logic
+
+```typescript
+if (progress.total === 0) {
+  draft.push({ name: entry.name });
+} else if (progress.completed === progress.total) {
+  completed.push({ name: entry.name });
+} else {
+  active.push({ name: entry.name, progress });
+}
+```
+
+### View Output Change
+
+**Before:**
+```
+Completed Changes
+─────────────────
+  ✓ add-feature        (all tasks done - correct)
+  ✓ test-workflow      (no tasks - WRONG)
+```
+
+**After:**
+```
+Draft Changes
+─────────────────
+  ○ test-workflow      (no tasks yet)
+
+Active Changes
+─────────────────
+  ◉ add-scaffold       [████░░░░] 3/7 tasks
+
+Completed Changes
+─────────────────
+  ✓ add-feature        (all tasks done)
+```
+
+## Change 2: Fix Artifact Workflow Discovery
+
+### Current Logic (Buggy)
+
+```typescript
+// artifact-workflow.ts - validateChangeExists()
+const activeChanges = await getActiveChangeIds(projectRoot);
+if (!activeChanges.includes(changeName)) {
+  throw new Error(`Change '${changeName}' not found...`);
+}
+```
+
+Problem: `getActiveChangeIds()` requires `proposal.md`, but artifact workflow should work on empty directories to help create the first artifact.
+
+### New Logic
+
+```typescript
+async function validateChangeExists(changeName: string, projectRoot: string): Promise<string> {
+  const changePath = path.join(projectRoot, 'openspec', 'changes', changeName);
+
+  // Check directory existence directly, not proposal.md
+  if (!fs.existsSync(changePath) || !fs.statSync(changePath).isDirectory()) {
+    // List available changes for helpful error message
+    const entries = await fs.promises.readdir(
+      path.join(projectRoot, 'openspec', 'changes'),
+      { withFileTypes: true }
+    );
+    const available = entries
+      .filter(e => e.isDirectory() && e.name !== 'archive' && !e.name.startsWith('.'))
+      .map(e => e.name);
+
+    if (available.length === 0) {
+      throw new Error('No changes found. Create one with: openspec new change <name>');
+    }
+    throw new Error(`Change '${changeName}' not found. Available:\n  ${available.join('\n  ')}`);
+  }
+
+  return changeName;
+}
+```
+
+### Behavior Change
+
+```bash
+# Before
+$ openspec new change foo
+$ openspec status --change foo
+Error: Change 'foo' not found.
+
+# After
+$ openspec new change foo
+$ openspec status --change foo
+Change: foo
+Progress: 0/4 artifacts complete
+
+[ ] proposal
+[-] specs (blocked by: proposal)
+[-] design (blocked by: proposal)
+[-] tasks (blocked by: specs, design)
+```
+
+## What Stays the Same
+
+1. **`getActiveChangeIds()`** - Still requires `proposal.md` (used by validate, show)
+2. **`getArchivedChangeIds()`** - Unchanged
+3. **Active/Completed semantics** - Still based on task checkboxes
+4. **Validation** - Still requires `proposal.md` to have something to validate
+
+## File Changes
+
+| File | Change |
+|------|--------|
+| `src/core/view.ts` | Add draft category, fix completion logic |
+| `src/commands/artifact-workflow.ts` | Update `validateChangeExists()` to use directory existence |
+| `test/commands/artifact-workflow.test.ts` | Add tests for scaffolded changes |
+
+## Testing Strategy
+
+1. **Unit test**: `validateChangeExists()` with scaffolded change
+2. **View test**: Verify three categories render correctly
+3. **Manual test**: Full workflow from `new change` → `status` → `view`

openspec/changes/archive/2025-12-29-unify-change-state-model/proposal.md

@@ -0,0 +1,101 @@
+# Proposal: Unify Change State Model
+
+## Problem Statement
+
+Two bugs create inconsistent behavior when working with changes:
+
+### Bug 1: Empty changes shown as "Completed" in view
+
+```typescript
+// view.ts line 90
+if (progress.total === 0 || progress.completed === progress.total) {
+  completed.push({ name: entry.name });  // BUG: total === 0 ≠ completed
+}
+```
+
+Result: `openspec new change foo && openspec view` shows `foo` as "Completed" when it has no content.
+
+### Bug 2: Artifact workflow commands can't find scaffolded changes
+
+```typescript
+// item-discovery.ts - getActiveChangeIds()
+const proposalPath = path.join(changesPath, entry.name, 'proposal.md');
+await fs.access(proposalPath);  // Only returns changes WITH proposal.md
+```
+
+Result: `openspec status --change foo` says "not found" even though the directory exists.
+
+## Root Cause
+
+The system conflates two different concepts:
+
+| Concept | Question | Source of Truth |
+|---------|----------|-----------------|
+| **Planning Progress** | Are all spec documents created? | File existence (ArtifactGraph) |
+| **Implementation Progress** | Is the coding work done? | Task checkboxes (tasks.md) |
+
+## Proposed Solution
+
+### Fix 1: Add "Draft" state to view command
+
+Keep Active/Completed with their existing meanings, but fix the bug:
+
+| State | Criteria | Meaning |
+|-------|----------|---------|
+| **Draft** | No tasks.md OR `tasks.total === 0` | Still planning |
+| **Active** | `tasks.total > 0` AND `completed < total` | Implementing |
+| **Completed** | `tasks.total > 0` AND `completed === total` | Done |
+
+### Fix 2: Artifact workflow uses directory existence
+
+Update `validateChangeExists()` to check if the directory exists, not if `proposal.md` exists. This allows the artifact workflow to guide users through creating their first artifact.
+
+### Keep existing discovery functions
+
+`getActiveChangeIds()` continues to require `proposal.md` for backward compatibility with validation and other commands.
+
+## What Changes
+
+| Command | Before | After |
+|---------|--------|-------|
+| `openspec view` | Empty = "Completed" | Empty = "Draft" |
+| `openspec status --change X` | Requires proposal.md | Works on any directory |
+| `openspec validate X` | Requires proposal.md | Unchanged (still requires it) |
+
+## Breaking Changes
+
+### Minimal Breaking Change
+
+1. **`openspec view` output**: Empty changes move from "Completed" section to new "Draft" section
+
+### Non-Breaking
+
+- Active/Completed semantics unchanged (still task-based)
+- `getActiveChangeIds()` unchanged
+- `openspec validate` unchanged
+- Archived changes unaffected
+
+## Out of Scope
+
+- Merging task-based and artifact-based progress (they serve different purposes)
+- Changing what "Completed" means (it stays = all tasks done)
+- Adding artifact progress to view command (separate enhancement)
+- Shell tab completions for artifact workflow commands (not yet registered)
+
+## Related Commands Analysis
+
+| Command | Uses `getActiveChangeIds()` | Should include scaffolded? | Change needed? |
+|---------|-----------------------------|-----------------------------|----------------|
+| `openspec view` | No (reads dirs directly) | Yes → Draft section | **Yes** |
+| `openspec list` | No (reads dirs directly) | Yes (shows "No tasks") | No |
+| `openspec status/next/instructions` | Yes | Yes | **Yes** |
+| `openspec validate` | Yes | No (can't validate empty) | No |
+| `openspec show` | Yes | No (nothing to show) | No |
+| Tab completions | Yes | Future enhancement | No |
+
+## Success Criteria
+
+1. `openspec new change foo && openspec view` shows `foo` in "Draft" section
+2. `openspec new change foo && openspec status --change foo` works
+3. Changes with all tasks done still show as "Completed"
+4. All existing tests pass

openspec/changes/archive/2025-12-29-unify-change-state-model/specs/cli-artifact-workflow/spec.md

@@ -0,0 +1,109 @@
+# cli-artifact-workflow Specification Delta
+
+## MODIFIED Requirements
+
+### Requirement: Status Command
+
+The system SHALL display artifact completion status for a change, including scaffolded (empty) changes.
+
+> **Fixes bug**: Previously required `proposal.md` to exist via `getActiveChangeIds()`.
+
+#### Scenario: Show status with all states
+
+- **WHEN** user runs `openspec status --change <id>`
+- **THEN** the system displays each artifact with status indicator:
+  - `[x]` for completed artifacts
+  - `[ ]` for ready artifacts
+  - `[-]` for blocked artifacts (with missing dependencies listed)
+
+#### Scenario: Status shows completion summary
+
+- **WHEN** user runs `openspec status --change <id>`
+- **THEN** output includes completion percentage and count (e.g., "2/4 artifacts complete")
+
+#### Scenario: Status JSON output
+
+- **WHEN** user runs `openspec status --change <id> --json`
+- **THEN** the system outputs JSON with changeName, schemaName, isComplete, and artifacts array
+
+#### Scenario: Status on scaffolded change
+
+- **WHEN** user runs `openspec status --change <id>` on a change with no artifacts
+- **THEN** system displays all artifacts with their status
+- **AND** root artifacts (no dependencies) show as ready `[ ]`
+- **AND** dependent artifacts show as blocked `[-]`
+
+#### Scenario: Missing change parameter
+
+- **WHEN** user runs `openspec status` without `--change`
+- **THEN** the system displays an error with list of available changes
+- **AND** includes scaffolded changes (directories without proposal.md)
+
+#### Scenario: Unknown change
+
+- **WHEN** user runs `openspec status --change unknown-id`
+- **AND** directory `openspec/changes/unknown-id/` does not exist
+- **THEN** the system displays an error listing all available change directories
+
+### Requirement: Next Command
+
+The system SHALL show which artifacts are ready to be created, including for scaffolded changes.
+
+#### Scenario: Show ready artifacts
+
+- **WHEN** user runs `openspec next --change <id>`
+- **THEN** the system lists artifacts whose dependencies are all satisfied
+
+#### Scenario: No artifacts ready
+
+- **WHEN** all artifacts are either completed or blocked
+- **THEN** the system indicates no artifacts are ready (with explanation)
+
+#### Scenario: All artifacts complete
+
+- **WHEN** all artifacts in the change are completed
+- **THEN** the system indicates the change is complete
+
+#### Scenario: Next JSON output
+
+- **WHEN** user runs `openspec next --change <id> --json`
+- **THEN** the system outputs JSON array of ready artifact IDs
+
+#### Scenario: Next on scaffolded change
+
+- **WHEN** user runs `openspec next --change <id>` on a change with no artifacts
+- **THEN** system shows root artifacts (e.g., "proposal") as ready to create
+
+### Requirement: Instructions Command
+
+The system SHALL output enriched instructions for creating an artifact, including for scaffolded changes.
+
+#### Scenario: Show enriched instructions
+
+- **WHEN** user runs `openspec instructions <artifact> --change <id>`
+- **THEN** the system outputs:
+  - Artifact metadata (ID, output path, description)
+  - Template content
+  - Dependency status (done/missing)
+  - Unlocked artifacts (what becomes available after completion)
+
+#### Scenario: Instructions JSON output
+
+- **WHEN** user runs `openspec instructions <artifact> --change <id> --json`
+- **THEN** the system outputs JSON matching ArtifactInstructions interface
+
+#### Scenario: Unknown artifact
+
+- **WHEN** user runs `openspec instructions unknown-artifact --change <id>`
+- **THEN** the system displays an error listing valid artifact IDs for the schema
+
+#### Scenario: Artifact with unmet dependencies
+
+- **WHEN** user requests instructions for a blocked artifact
+- **THEN** the system displays instructions with a warning about missing dependencies
+
+#### Scenario: Instructions on scaffolded change
+
+- **WHEN** user runs `openspec instructions proposal --change <id>` on a scaffolded change
+- **THEN** system outputs template and metadata for creating the proposal
+- **AND** does not require any artifacts to already exist

openspec/changes/archive/2025-12-29-unify-change-state-model/specs/cli-view/spec.md

@@ -0,0 +1,60 @@
+# cli-view Specification Delta
+
+## ADDED Requirements
+
+### Requirement: Draft Changes Display
+
+The dashboard SHALL display changes without tasks in a separate "Draft" section.
+
+#### Scenario: Draft changes listing
+
+- **WHEN** there are changes with no tasks.md or zero tasks defined
+- **THEN** system shows them in a "Draft Changes" section
+- **AND** uses a distinct indicator (e.g., `○`) to show draft status
+
+#### Scenario: Draft section ordering
+
+- **WHEN** multiple draft changes exist
+- **THEN** system sorts them alphabetically by name
+
+## MODIFIED Requirements
+
+### Requirement: Completed Changes Display
+
+The dashboard SHALL list completed changes in a separate section, only showing changes with ALL tasks completed.
+
+> **Fixes bug**: Previously, changes with `total === 0` were incorrectly shown as completed.
+
+#### Scenario: Completed changes listing
+
+- **WHEN** there are changes with `tasks.total > 0` AND `tasks.completed === tasks.total`
+- **THEN** system shows them with checkmark indicators in a dedicated section
+
+#### Scenario: Mixed completion states
+
+- **WHEN** some changes are complete and others active
+- **THEN** system separates them into appropriate sections
+
+#### Scenario: Empty changes not completed
+
+- **WHEN** a change has no tasks.md or zero tasks defined
+- **THEN** system does NOT show it in "Completed Changes" section
+- **AND** shows it in "Draft Changes" section instead
+
+### Requirement: Summary Section
+
+The dashboard SHALL display a summary section with key project metrics, including draft change count.
+
+#### Scenario: Complete summary display
+
+- **WHEN** dashboard is rendered with specs and changes
+- **THEN** system shows total number of specifications and requirements
+- **AND** shows number of draft changes
+- **AND** shows number of active changes in progress
+- **AND** shows number of completed changes
+- **AND** shows overall task progress percentage
+
+#### Scenario: Empty project summary
+
+- **WHEN** no specs or changes exist
+- **THEN** summary shows zero counts for all metrics

openspec/changes/archive/2025-12-29-unify-change-state-model/tasks.md

@@ -0,0 +1,25 @@
+# Tasks: Unify Change State Model
+
+## Phase 1: Fix Artifact Workflow Discovery
+
+- [x] Update `validateChangeExists()` in `artifact-workflow.ts` to check directory existence instead of using `getActiveChangeIds()`
+- [x] Update error message to list all change directories (not just those with proposal.md)
+- [x] Add test for `openspec status --change <scaffolded-change>`
+- [x] Add test for `openspec next --change <scaffolded-change>`
+- [x] Add test for `openspec instructions proposal --change <scaffolded-change>`
+
+## Phase 2: Fix View Command
+
+- [x] Update `getChangesData()` in `view.ts` to return three categories: draft, active, completed
+- [x] Fix completion logic: `total === 0` → draft, not completed
+- [x] Add "Draft Changes" section to dashboard rendering
+- [x] Update summary to include draft count
+- [x] Add test for draft changes appearing correctly in view
+
+## Phase 3: Cleanup and Validation
+
+- [x] Clean up test changes (`test-workflow`, `test-workflow-2`)
+- [x] Run full test suite
+- [x] Manual test: `openspec new change foo && openspec status --change foo`
+- [x] Manual test: `openspec new change foo && openspec view` shows foo in Draft
+- [x] Validate with `openspec validate unify-change-state-model --strict`

openspec/changes/archive/2025-12-30-add-antigravity-support/proposal.md

@@ -0,0 +1,11 @@
+## Why
+Google is rolling out Antigravity, a Windsurf-derived IDE that discovers workflows from `.agent/workflows/*.md`. Today OpenSpec can only scaffold slash commands for Windsurf directories, so Antigravity users cannot run the proposal/apply/archive flows from the IDE.
+
+## What Changes
+- Add Antigravity as a selectable native tool in `openspec init` so it creates `.agent/workflows/openspec-proposal.md`, `openspec-apply.md`, and `openspec-archive.md` with YAML frontmatter containing only a `description` field plus the standard OpenSpec-managed body.
+- Ensure `openspec update` refreshes the body of any existing Antigravity workflows inside `.agent/workflows/` without creating missing files, mirroring the Windsurf behavior.
+- Share e2e/template coverage confirming the generator writes the proper directory, filename casing, and frontmatter format so Antigravity picks up the workflows.
+
+## Impact
+- Affected specs: `specs/cli-init`, `specs/cli-update`
+- Expected code: CLI init/update tool registries, slash-command templates, associated tests

openspec/changes/archive/2025-12-30-add-antigravity-support/specs/cli-init/spec.md

@@ -0,0 +1,105 @@
+# Delta for CLI Init
+
+## MODIFIED Requirements
+### Requirement: Slash Command Configuration
+The init command SHALL generate slash command files for supported editors using shared templates.
+
+#### Scenario: Generating slash commands for Antigravity
+- **WHEN** the user selects Antigravity during initialization
+- **THEN** create `.agent/workflows/openspec-proposal.md`, `.agent/workflows/openspec-apply.md`, and `.agent/workflows/openspec-archive.md`
+- **AND** ensure each file begins with YAML frontmatter that contains only a `description: <stage summary>` field followed by the shared OpenSpec workflow instructions wrapped in managed markers
+- **AND** populate the workflow body with the same proposal/apply/archive guidance used for other tools so Antigravity behaves like Windsurf while pointing to the `.agent/workflows/` directory
+
+#### Scenario: Generating slash commands for Claude Code
+- **WHEN** the user selects Claude Code during initialization
+- **THEN** create `.claude/commands/openspec/proposal.md`, `.claude/commands/openspec/apply.md`, and `.claude/commands/openspec/archive.md`
+- **AND** populate each file from shared templates so command text matches other tools
+- **AND** each template includes instructions for the relevant OpenSpec workflow stage
+
+#### Scenario: Generating slash commands for CodeBuddy Code
+- **WHEN** the user selects CodeBuddy Code during initialization
+- **THEN** create `.codebuddy/commands/openspec/proposal.md`, `.codebuddy/commands/openspec/apply.md`, and `.codebuddy/commands/openspec/archive.md`
+- **AND** populate each file from shared templates so command text matches other tools
+- **AND** each template includes instructions for the relevant OpenSpec workflow stage
+
+#### Scenario: Generating slash commands for Cline
+- **WHEN** the user selects Cline during initialization
+- **THEN** create `.clinerules/openspec-proposal.md`, `.clinerules/openspec-apply.md`, and `.clinerules/openspec-archive.md`
+- **AND** populate each file from shared templates so command text matches other tools
+- **AND** include Cline-specific Markdown heading frontmatter
+- **AND** each template includes instructions for the relevant OpenSpec workflow stage
+
+#### Scenario: Generating slash commands for Crush
+- **WHEN** the user selects Crush during initialization
+- **THEN** create `.crush/commands/openspec/proposal.md`, `.crush/commands/openspec/apply.md`, and `.crush/commands/openspec/archive.md`
+- **AND** populate each file from shared templates so command text matches other tools
+- **AND** include Crush-specific frontmatter with OpenSpec category and tags
+- **AND** each template includes instructions for the relevant OpenSpec workflow stage
+
+#### Scenario: Generating slash commands for Cursor
+- **WHEN** the user selects Cursor during initialization
+- **THEN** create `.cursor/commands/openspec-proposal.md`, `.cursor/commands/openspec-apply.md`, and `.cursor/commands/openspec-archive.md`
+- **AND** populate each file from shared templates so command text matches other tools
+- **AND** each template includes instructions for the relevant OpenSpec workflow stage
+
+#### Scenario: Generating slash commands for Factory Droid
+- **WHEN** the user selects Factory Droid during initialization
+- **THEN** create `.factory/commands/openspec-proposal.md`, `.factory/commands/openspec-apply.md`, and `.factory/commands/openspec-archive.md`
+- **AND** populate each file from shared templates that include Factory-compatible YAML frontmatter for the `description` and `argument-hint` fields
+- **AND** include the `$ARGUMENTS` placeholder in the template body so droid receives any user-supplied input
+- **AND** wrap the generated content in OpenSpec managed markers so `openspec update` can safely refresh the commands
+
+#### Scenario: Generating slash commands for OpenCode
+- **WHEN** the user selects OpenCode during initialization
+- **THEN** create `.opencode/commands/openspec-proposal.md`, `.opencode/commands/openspec-apply.md`, and `.opencode/commands/openspec-archive.md`
+- **AND** populate each file from shared templates so command text matches other tools
+- **AND** each template includes instructions for the relevant OpenSpec workflow stage
+
+#### Scenario: Generating slash commands for Windsurf
+- **WHEN** the user selects Windsurf during initialization
+- **THEN** create `.windsurf/workflows/openspec-proposal.md`, `.windsurf/workflows/openspec-apply.md`, and `.windsurf/workflows/openspec-archive.md`
+- **AND** populate each file from shared templates (wrapped in OpenSpec markers) so workflow text matches other tools
+- **AND** each template includes instructions for the relevant OpenSpec workflow stage
+
+#### Scenario: Generating slash commands for Kilo Code
+- **WHEN** the user selects Kilo Code during initialization
+- **THEN** create `.kilocode/workflows/openspec-proposal.md`, `.kilocode/workflows/openspec-apply.md`, and `.kilocode/workflows/openspec-archive.md`
+- **AND** populate each file from shared templates (wrapped in OpenSpec markers) so workflow text matches other tools
+- **AND** each template includes instructions for the relevant OpenSpec workflow stage
+
+#### Scenario: Generating slash commands for Codex
+- **WHEN** the user selects Codex during initialization
+- **THEN** create global prompt files at `~/.codex/prompts/openspec-proposal.md`, `~/.codex/prompts/openspec-apply.md`, and `~/.codex/prompts/openspec-archive.md` (or under `$CODEX_HOME/prompts` if set)
+- **AND** populate each file from shared templates that map the first numbered placeholder (`$1`) to the primary user input (e.g., change identifier or question text)
+- **AND** wrap the generated content in OpenSpec markers so `openspec update` can refresh the prompts without touching surrounding custom notes
+
+#### Scenario: Generating slash commands for GitHub Copilot
+- **WHEN** the user selects GitHub Copilot during initialization
+- **THEN** create `.github/prompts/openspec-proposal.prompt.md`, `.github/prompts/openspec-apply.prompt.md`, and `.github/prompts/openspec-archive.prompt.md`
+- **AND** populate each file with YAML frontmatter containing a `description` field that summarizes the workflow stage
+- **AND** include `$ARGUMENTS` placeholder to capture user input
+- **AND** wrap the shared template body with OpenSpec markers so `openspec update` can refresh the content
+- **AND** each template includes instructions for the relevant OpenSpec workflow stage
+
+#### Scenario: Generating slash commands for Gemini CLI
+- **WHEN** the user selects Gemini CLI during initialization
+- **THEN** create `.gemini/commands/openspec/proposal.toml`, `.gemini/commands/openspec/apply.toml`, and `.gemini/commands/openspec/archive.toml`
+- **AND** populate each file as TOML that sets a stage-specific `description = "<summary>"` and a multi-line `prompt = """` block with the shared OpenSpec template
+- **AND** wrap the OpenSpec managed markers (`<!-- OPENSPEC:START -->` / `<!-- OPENSPEC:END -->`) inside the `prompt` value so `openspec update` can safely refresh the body between markers without touching the TOML framing
+- **AND** ensure the slash-command copy matches the existing proposal/apply/archive templates used by other tools
+
+#### Scenario: Generating slash commands for iFlow CLI
+- **WHEN** the user selects iFlow CLI during initialization
+- **THEN** create `.iflow/commands/openspec-proposal.md`, `.iflow/commands/openspec-apply.md`, and `.iflow/commands/openspec-archive.md`
+- **AND** populate each file from shared templates so command text matches other tools
+- **AND** include YAML frontmatter with `name`, `id`, `category`, and `description` fields for each command
+- **AND** wrap the generated content in OpenSpec managed markers so `openspec update` can safely refresh the commands
+- **AND** each template includes instructions for the relevant OpenSpec workflow stage
+
+#### Scenario: Generating slash commands for RooCode
+- **WHEN** the user selects RooCode during initialization
+- **THEN** create `.roo/commands/openspec-proposal.md`, `.roo/commands/openspec-apply.md`, and `.roo/commands/openspec-archive.md`
+- **AND** populate each file from shared templates so command text matches other tools
+- **AND** include simple Markdown headings (e.g., `# OpenSpec: Proposal`) without YAML frontmatter
+- **AND** wrap the generated content in OpenSpec managed markers where applicable so `openspec update` can safely refresh the commands
+- **AND** each template includes instructions for the relevant OpenSpec workflow stage

openspec/changes/archive/2025-12-30-add-antigravity-support/specs/cli-update/spec.md

@@ -0,0 +1,92 @@
+# Delta for CLI Update
+
+## MODIFIED Requirements
+### Requirement: Slash Command Updates
+The update command SHALL refresh existing slash command files for configured tools without creating new ones, and ensure the OpenCode archive command accepts change ID arguments.
+
+#### Scenario: Updating slash commands for Antigravity
+- **WHEN** `.agent/workflows/` contains `openspec-proposal.md`, `openspec-apply.md`, and `openspec-archive.md`
+- **THEN** refresh the OpenSpec-managed portion of each file so the workflow copy matches other tools while preserving the existing single-field `description` frontmatter
+- **AND** skip creating any missing workflow files during update, mirroring the behavior for Windsurf and other IDEs
+
+#### Scenario: Updating slash commands for Claude Code
+- **WHEN** `.claude/commands/openspec/` contains `proposal.md`, `apply.md`, and `archive.md`
+- **THEN** refresh each file using shared templates
+- **AND** ensure templates include instructions for the relevant workflow stage
+
+#### Scenario: Updating slash commands for CodeBuddy Code
+- **WHEN** `.codebuddy/commands/openspec/` contains `proposal.md`, `apply.md`, and `archive.md`
+- **THEN** refresh each file using shared templates
+- **AND** ensure templates include instructions for the relevant workflow stage
+
+#### Scenario: Updating slash commands for Cline
+- **WHEN** `.clinerules/` contains `openspec-proposal.md`, `openspec-apply.md`, and `openspec-archive.md`
+- **THEN** refresh each file using shared templates
+- **AND** include Cline-specific Markdown heading frontmatter
+- **AND** ensure templates include instructions for the relevant workflow stage
+
+#### Scenario: Updating slash commands for Crush
+- **WHEN** `.crush/commands/` contains `openspec/proposal.md`, `openspec/apply.md`, and `openspec/archive.md`
+- **THEN** refresh each file using shared templates
+- **AND** include Crush-specific frontmatter with OpenSpec category and tags
+- **AND** ensure templates include instructions for the relevant workflow stage
+
+#### Scenario: Updating slash commands for Cursor
+- **WHEN** `.cursor/commands/` contains `openspec-proposal.md`, `openspec-apply.md`, and `openspec-archive.md`
+- **THEN** refresh each file using shared templates
+- **AND** ensure templates include instructions for the relevant workflow stage
+
+#### Scenario: Updating slash commands for Factory Droid
+- **WHEN** `.factory/commands/` contains `openspec-proposal.md`, `openspec-apply.md`, and `openspec-archive.md`
+- **THEN** refresh each file using the shared Factory templates that include YAML frontmatter for the `description` and `argument-hint` fields
+- **AND** ensure the template body retains the `$ARGUMENTS` placeholder so user input keeps flowing into droid
+- **AND** update only the content inside the OpenSpec managed markers, leaving any unmanaged notes untouched
+- **AND** skip creating missing files during update
+
+#### Scenario: Updating slash commands for OpenCode
+- **WHEN** `.opencode/command/` contains `openspec-proposal.md`, `openspec-apply.md`, and `openspec-archive.md`
+- **THEN** refresh each file using shared templates
+- **AND** ensure templates include instructions for the relevant workflow stage
+- **AND** ensure the archive command includes `$ARGUMENTS` placeholder in frontmatter for accepting change ID arguments
+
+#### Scenario: Updating slash commands for Windsurf
+- **WHEN** `.windsurf/workflows/` contains `openspec-proposal.md`, `openspec-apply.md`, and `openspec-archive.md`
+- **THEN** refresh each file using shared templates wrapped in OpenSpec markers
+- **AND** ensure templates include instructions for the relevant workflow stage
+- **AND** skip creating missing files (the update command only refreshes what already exists)
+
+#### Scenario: Updating slash commands for Kilo Code
+- **WHEN** `.kilocode/workflows/` contains `openspec-proposal.md`, `openspec-apply.md`, and `openspec-archive.md`
+- **THEN** refresh each file using shared templates wrapped in OpenSpec markers
+- **AND** ensure templates include instructions for the relevant workflow stage
+- **AND** skip creating missing files (the update command only refreshes what already exists)
+
+#### Scenario: Updating slash commands for Codex
+- **GIVEN** the global Codex prompt directory contains `openspec-proposal.md`, `openspec-apply.md`, and `openspec-archive.md`
+- **WHEN** a user runs `openspec update`
+- **THEN** refresh each file using the shared slash-command templates (including placeholder guidance)
+- **AND** preserve any unmanaged content outside the OpenSpec marker block
+- **AND** skip creation when a Codex prompt file is missing
+
+#### Scenario: Updating slash commands for GitHub Copilot
+- **WHEN** `.github/prompts/` contains `openspec-proposal.prompt.md`, `openspec-apply.prompt.md`, and `openspec-archive.prompt.md`
+- **THEN** refresh each file using shared templates while preserving the YAML frontmatter
+- **AND** update only the OpenSpec-managed block between markers
+- **AND** ensure templates include instructions for the relevant workflow stage
+
+#### Scenario: Updating slash commands for Gemini CLI
+- **WHEN** `.gemini/commands/openspec/` contains `proposal.toml`, `apply.toml`, and `archive.toml`
+- **THEN** refresh the body of each file using the shared proposal/apply/archive templates
+- **AND** replace only the content between `<!-- OPENSPEC:START -->` and `<!-- OPENSPEC:END -->` markers inside the `prompt = """` block so the TOML framing (`description`, `prompt`) stays intact
+- **AND** skip creating any missing `.toml` files during update; only pre-existing Gemini commands are refreshed
+
+#### Scenario: Updating slash commands for iFlow CLI
+- **WHEN** `.iflow/commands/` contains `openspec-proposal.md`, `openspec-apply.md`, and `openspec-archive.md`
+- **THEN** refresh each file using shared templates
+- **AND** preserve the YAML frontmatter with `name`, `id`, `category`, and `description` fields
+- **AND** update only the OpenSpec-managed block between markers
+- **AND** ensure templates include instructions for the relevant workflow stage
+
+#### Scenario: Missing slash command file
+- **WHEN** a tool lacks a slash command file
+- **THEN** do not create a new file during update

openspec/changes/archive/2025-12-30-add-antigravity-support/tasks.md

@@ -0,0 +1,12 @@
+## 1. CLI init support
+- [x] 1.1 Surface Antigravity in the native-tool picker (interactive + `--tools`) so it toggles alongside other IDEs.
+- [x] 1.2 Generate `.agent/workflows/openspec-proposal.md`, `openspec-apply.md`, and `openspec-archive.md` with YAML frontmatter restricted to a single `description` field for each stage and wrap the body in OpenSpec markers.
+- [x] 1.3 Confirm workspace scaffolding covers missing directory creation and re-run scenarios so repeated init refreshes the managed block.
+
+## 2. CLI update support
+- [x] 2.1 Detect existing Antigravity workflow files during `openspec update` and refresh only the managed body, skipping creation when files are missing.
+- [x] 2.2 Ensure update logic preserves the `description` frontmatter block exactly as written by init, including case and spacing, and refreshes body templates alongside other tools.
+
+## 3. Templates and tests
+- [x] 3.1 Add shared template entries for Antigravity that reuse the Windsurf copy but target `.agent/workflows` plus the description-only frontmatter requirement.
+- [x] 3.2 Expand automated coverage (unit or integration) verifying init and update produce the expected file paths and frontmatter + body markers for Antigravity.

openspec/changes/archive/2025-12-30-fix-cline-workflows-implementation/proposal.md

@@ -0,0 +1,13 @@
+## Why
+The Cline implementation was architecturally incorrect. According to Cline's official documentation, Cline uses workflows for on-demand automation and rules for behavioral guidelines. The OpenSpec slash commands are procedural workflows (scaffold → implement → archive), not behavioral rules, so they should be placed in `.clinerules/workflows/` instead of `.clinerules/`.
+
+## What Changes
+- Update ClineSlashCommandConfigurator to use `.clinerules/workflows/` paths instead of `.clinerules/` paths
+- Update all tests to expect the correct workflow file locations
+- Update README.md documentation to reflect workflows instead of rules
+- **BREAKING**: Existing Cline users will need to re-run `openspec init` to get the corrected workflow files
+
+## Impact
+- Affected specs: cli-init, cli-update (corrected Cline workflow paths)
+- Affected code: `src/core/configurators/slash/cline.ts`, test files, README.md
+- Modified files: `.clinerules/workflows/openspec-*.md` (moved from `.clinerules/openspec-*.md`)

openspec/changes/archive/2025-12-30-fix-cline-workflows-implementation/specs/cli-init/spec.md

@@ -0,0 +1,105 @@
+# Delta for CLI Init
+
+## MODIFIED Requirements
+### Requirement: Slash Command Configuration
+The init command SHALL generate slash command files for supported editors using shared templates.
+
+#### Scenario: Generating slash commands for Antigravity
+- **WHEN** the user selects Antigravity during initialization
+- **THEN** create `.agent/workflows/openspec-proposal.md`, `.agent/workflows/openspec-apply.md`, and `.agent/workflows/openspec-archive.md`
+- **AND** ensure each file begins with YAML frontmatter that contains only a `description: <stage summary>` field followed by the shared OpenSpec workflow instructions wrapped in managed markers
+- **AND** populate the workflow body with the same proposal/apply/archive guidance used for other tools so Antigravity behaves like Windsurf while pointing to the `.agent/workflows/` directory
+
+#### Scenario: Generating slash commands for Claude Code
+- **WHEN** the user selects Claude Code during initialization
+- **THEN** create `.claude/commands/openspec/proposal.md`, `.claude/commands/openspec/apply.md`, and `.claude/commands/openspec/archive.md`
+- **AND** populate each file from shared templates so command text matches other tools
+- **AND** each template includes instructions for the relevant OpenSpec workflow stage
+
+#### Scenario: Generating slash commands for CodeBuddy Code
+- **WHEN** the user selects CodeBuddy Code during initialization
+- **THEN** create `.codebuddy/commands/openspec/proposal.md`, `.codebuddy/commands/openspec/apply.md`, and `.codebuddy/commands/openspec/archive.md`
+- **AND** populate each file from shared templates so command text matches other tools
+- **AND** each template includes instructions for the relevant OpenSpec workflow stage
+
+#### Scenario: Generating slash commands for Cline
+- **WHEN** the user selects Cline during initialization
+- **THEN** create `.clinerules/workflows/openspec-proposal.md`, `.clinerules/workflows/openspec-apply.md`, and `.clinerules/workflows/openspec-archive.md`
+- **AND** populate each file from shared templates so command text matches other tools
+- **AND** include Cline-specific Markdown heading frontmatter
+- **AND** each template includes instructions for the relevant OpenSpec workflow stage
+
+#### Scenario: Generating slash commands for Crush
+- **WHEN** the user selects Crush during initialization
+- **THEN** create `.crush/commands/openspec/proposal.md`, `.crush/commands/openspec/apply.md`, and `.crush/commands/openspec/archive.md`
+- **AND** populate each file from shared templates so command text matches other tools
+- **AND** include Crush-specific frontmatter with OpenSpec category and tags
+- **AND** each template includes instructions for the relevant OpenSpec workflow stage
+
+#### Scenario: Generating slash commands for Cursor
+- **WHEN** the user selects Cursor during initialization
+- **THEN** create `.cursor/commands/openspec-proposal.md`, `.cursor/commands/openspec-apply.md`, and `.cursor/commands/openspec-archive.md`
+- **AND** populate each file from shared templates so command text matches other tools
+- **AND** each template includes instructions for the relevant OpenSpec workflow stage
+
+#### Scenario: Generating slash commands for Factory Droid
+- **WHEN** the user selects Factory Droid during initialization
+- **THEN** create `.factory/commands/openspec-proposal.md`, `.factory/commands/openspec-apply.md`, and `.factory/commands/openspec-archive.md`
+- **AND** populate each file from shared templates that include Factory-compatible YAML frontmatter for the `description` and `argument-hint` fields
+- **AND** include the `$ARGUMENTS` placeholder in the template body so droid receives any user-supplied input
+- **AND** wrap the generated content in OpenSpec managed markers so `openspec update` can safely refresh the commands
+
+#### Scenario: Generating slash commands for OpenCode
+- **WHEN** the user selects OpenCode during initialization
+- **THEN** create `.opencode/commands/openspec-proposal.md`, `.opencode/commands/openspec-apply.md`, and `.opencode/commands/openspec-archive.md`
+- **AND** populate each file from shared templates so command text matches other tools
+- **AND** each template includes instructions for the relevant OpenSpec workflow stage
+
+#### Scenario: Generating slash commands for Windsurf
+- **WHEN** the user selects Windsurf during initialization
+- **THEN** create `.windsurf/workflows/openspec-proposal.md`, `.windsurf/workflows/openspec-apply.md`, and `.windsurf/workflows/openspec-archive.md`
+- **AND** populate each file from shared templates (wrapped in OpenSpec markers) so workflow text matches other tools
+- **AND** each template includes instructions for the relevant OpenSpec workflow stage
+
+#### Scenario: Generating slash commands for Kilo Code
+- **WHEN** the user selects Kilo Code during initialization
+- **THEN** create `.kilocode/workflows/openspec-proposal.md`, `.kilocode/workflows/openspec-apply.md`, and `.kilocode/workflows/openspec-archive.md`
+- **AND** populate each file from shared templates (wrapped in OpenSpec markers) so workflow text matches other tools
+- **AND** each template includes instructions for the relevant OpenSpec workflow stage
+
+#### Scenario: Generating slash commands for Codex
+- **WHEN** the user selects Codex during initialization
+- **THEN** create global prompt files at `~/.codex/prompts/openspec-proposal.md`, `~/.codex/prompts/openspec-apply.md`, and `~/.codex/prompts/openspec-archive.md` (or under `$CODEX_HOME/prompts` if set)
+- **AND** populate each file from shared templates that map the first numbered placeholder (`$1`) to the primary user input (e.g., change identifier or question text)
+- **AND** wrap the generated content in OpenSpec markers so `openspec update` can refresh the prompts without touching surrounding custom notes
+
+#### Scenario: Generating slash commands for GitHub Copilot
+- **WHEN** the user selects GitHub Copilot during initialization
+- **THEN** create `.github/prompts/openspec-proposal.prompt.md`, `.github/prompts/openspec-apply.prompt.md`, and `.github/prompts/openspec-archive.prompt.md`
+- **AND** populate each file with YAML frontmatter containing a `description` field that summarizes the workflow stage
+- **AND** include `$ARGUMENTS` placeholder to capture user input
+- **AND** wrap the shared template body with OpenSpec markers so `openspec update` can refresh the content
+- **AND** each template includes instructions for the relevant OpenSpec workflow stage
+
+#### Scenario: Generating slash commands for Gemini CLI
+- **WHEN** the user selects Gemini CLI during initialization
+- **THEN** create `.gemini/commands/openspec/proposal.toml`, `.gemini/commands/openspec/apply.toml`, and `.gemini/commands/openspec/archive.toml`
+- **AND** populate each file as TOML that sets a stage-specific `description = "<summary>"` and a multi-line `prompt = """` block with the shared OpenSpec template
+- **AND** wrap the OpenSpec managed markers (`<!-- OPENSPEC:START -->` / `<!-- OPENSPEC:END -->`) inside the `prompt` value so `openspec update` can safely refresh the body between markers without touching the TOML framing
+- **AND** ensure the slash-command copy matches the existing proposal/apply/archive templates used by other tools
+
+#### Scenario: Generating slash commands for iFlow CLI
+- **WHEN** the user selects iFlow CLI during initialization
+- **THEN** create `.iflow/commands/openspec-proposal.md`, `.iflow/commands/openspec-apply.md`, and `.iflow/commands/openspec-archive.md`
+- **AND** populate each file from shared templates so command text matches other tools
+- **AND** include YAML frontmatter with `name`, `id`, `category`, and `description` fields for each command
+- **AND** wrap the generated content in OpenSpec managed markers so `openspec update` can safely refresh the commands
+- **AND** each template includes instructions for the relevant OpenSpec workflow stage
+
+#### Scenario: Generating slash commands for RooCode
+- **WHEN** the user selects RooCode during initialization
+- **THEN** create `.roo/commands/openspec-proposal.md`, `.roo/commands/openspec-apply.md`, and `.roo/commands/openspec-archive.md`
+- **AND** populate each file from shared templates so command text matches other tools
+- **AND** include simple Markdown headings (e.g., `# OpenSpec: Proposal`) without YAML frontmatter
+- **AND** wrap the generated content in OpenSpec managed markers where applicable so `openspec update` can safely refresh the commands
+- **AND** each template includes instructions for the relevant OpenSpec workflow stage

openspec/changes/archive/2025-12-30-fix-cline-workflows-implementation/specs/cli-update/spec.md

@@ -0,0 +1,92 @@
+# Delta for CLI Update
+
+## MODIFIED Requirements
+### Requirement: Slash Command Updates
+The update command SHALL refresh existing slash command files for configured tools without creating new ones, and ensure the OpenCode archive command accepts change ID arguments.
+
+#### Scenario: Updating slash commands for Antigravity
+- **WHEN** `.agent/workflows/` contains `openspec-proposal.md`, `openspec-apply.md`, and `openspec-archive.md`
+- **THEN** refresh the OpenSpec-managed portion of each file so the workflow copy matches other tools while preserving the existing single-field `description` frontmatter
+- **AND** skip creating any missing workflow files during update, mirroring the behavior for Windsurf and other IDEs
+
+#### Scenario: Updating slash commands for Claude Code
+- **WHEN** `.claude/commands/openspec/` contains `proposal.md`, `apply.md`, and `archive.md`
+- **THEN** refresh each file using shared templates
+- **AND** ensure templates include instructions for the relevant workflow stage
+
+#### Scenario: Updating slash commands for CodeBuddy Code
+- **WHEN** `.codebuddy/commands/openspec/` contains `proposal.md`, `apply.md`, and `archive.md`
+- **THEN** refresh each file using shared templates
+- **AND** ensure templates include instructions for the relevant workflow stage
+
+#### Scenario: Updating slash commands for Cline
+- **WHEN** `.clinerules/workflows/` contains `openspec-proposal.md`, `openspec-apply.md`, and `openspec-archive.md`
+- **THEN** refresh each file using shared templates
+- **AND** include Cline-specific Markdown heading frontmatter
+- **AND** ensure templates include instructions for the relevant workflow stage
+
+#### Scenario: Updating slash commands for Crush
+- **WHEN** `.crush/commands/` contains `openspec/proposal.md`, `openspec/apply.md`, and `openspec/archive.md`
+- **THEN** refresh each file using shared templates
+- **AND** include Crush-specific frontmatter with OpenSpec category and tags
+- **AND** ensure templates include instructions for the relevant workflow stage
+
+#### Scenario: Updating slash commands for Cursor
+- **WHEN** `.cursor/commands/` contains `openspec-proposal.md`, `openspec-apply.md`, and `openspec-archive.md`
+- **THEN** refresh each file using shared templates
+- **AND** ensure templates include instructions for the relevant workflow stage
+
+#### Scenario: Updating slash commands for Factory Droid
+- **WHEN** `.factory/commands/` contains `openspec-proposal.md`, `openspec-apply.md`, and `openspec-archive.md`
+- **THEN** refresh each file using the shared Factory templates that include YAML frontmatter for the `description` and `argument-hint` fields
+- **AND** ensure the template body retains the `$ARGUMENTS` placeholder so user input keeps flowing into droid
+- **AND** update only the content inside the OpenSpec managed markers, leaving any unmanaged notes untouched
+- **AND** skip creating missing files during update
+
+#### Scenario: Updating slash commands for OpenCode
+- **WHEN** `.opencode/command/` contains `openspec-proposal.md`, `openspec-apply.md`, and `openspec-archive.md`
+- **THEN** refresh each file using shared templates
+- **AND** ensure templates include instructions for the relevant workflow stage
+- **AND** ensure the archive command includes `$ARGUMENTS` placeholder in frontmatter for accepting change ID arguments
+
+#### Scenario: Updating slash commands for Windsurf
+- **WHEN** `.windsurf/workflows/` contains `openspec-proposal.md`, `openspec-apply.md`, and `openspec-archive.md`
+- **THEN** refresh each file using shared templates wrapped in OpenSpec markers
+- **AND** ensure templates include instructions for the relevant workflow stage
+- **AND** skip creating missing files (the update command only refreshes what already exists)
+
+#### Scenario: Updating slash commands for Kilo Code
+- **WHEN** `.kilocode/workflows/` contains `openspec-proposal.md`, `openspec-apply.md`, and `openspec-archive.md`
+- **THEN** refresh each file using shared templates wrapped in OpenSpec markers
+- **AND** ensure templates include instructions for the relevant workflow stage
+- **AND** skip creating missing files (the update command only refreshes what already exists)
+
+#### Scenario: Updating slash commands for Codex
+- **GIVEN** the global Codex prompt directory contains `openspec-proposal.md`, `openspec-apply.md`, and `openspec-archive.md`
+- **WHEN** a user runs `openspec update`
+- **THEN** refresh each file using the shared slash-command templates (including placeholder guidance)
+- **AND** preserve any unmanaged content outside the OpenSpec marker block
+- **AND** skip creation when a Codex prompt file is missing
+
+#### Scenario: Updating slash commands for GitHub Copilot
+- **WHEN** `.github/prompts/` contains `openspec-proposal.prompt.md`, `openspec-apply.prompt.md`, and `openspec-archive.prompt.md`
+- **THEN** refresh each file using shared templates while preserving the YAML frontmatter
+- **AND** update only the OpenSpec-managed block between markers
+- **AND** ensure templates include instructions for the relevant workflow stage
+
+#### Scenario: Updating slash commands for Gemini CLI
+- **WHEN** `.gemini/commands/openspec/` contains `proposal.toml`, `apply.toml`, and `archive.toml`
+- **THEN** refresh the body of each file using the shared proposal/apply/archive templates
+- **AND** replace only the content between `<!-- OPENSPEC:START -->` and `<!-- OPENSPEC:END -->` markers inside the `prompt = """` block so the TOML framing (`description`, `prompt`) stays intact
+- **AND** skip creating any missing `.toml` files during update; only pre-existing Gemini commands are refreshed
+
+#### Scenario: Updating slash commands for iFlow CLI
+- **WHEN** `.iflow/commands/` contains `openspec-proposal.md`, `openspec-apply.md`, and `openspec-archive.md`
+- **THEN** refresh each file using shared templates
+- **AND** preserve the YAML frontmatter with `name`, `id`, `category`, and `description` fields
+- **AND** update only the OpenSpec-managed block between markers
+- **AND** ensure templates include instructions for the relevant workflow stage
+
+#### Scenario: Missing slash command file
+- **WHEN** a tool lacks a slash command file
+- **THEN** do not create a new file during update

openspec/changes/archive/2025-12-30-fix-cline-workflows-implementation/tasks.md

@@ -0,0 +1,13 @@
+## 1. Update ClineSlashCommandConfigurator
+- [x] Change FILE_PATHS in `src/core/configurators/slash/cline.ts` from `.clinerules/openspec-*.md` to `.clinerules/workflows/openspec-*.md`
+
+## 2. Update Tests
+- [x] Update "should refresh existing Cline rule files" test in `test/core/update.test.ts` to use workflow paths
+- [x] Update "should create Cline rule files with templates" test in `test/core/init.test.ts` to use workflow paths
+
+## 3. Update Documentation
+- [x] Update README.md table to show "Workflows in `.clinerules/workflows/` directory" for Cline
+
+## 4. Validate Changes
+- [x] Ensure all tests pass with the new paths
+- [x] Verify the change follows OpenSpec conventions

openspec/changes/archive/2026-01-06-add-agent-schema-selection/proposal.md

@@ -0,0 +1,26 @@
+## Why
+
+With per-change schema metadata in place (see `add-per-change-schema-metadata`), agents can now create changes with different workflow schemas. However, the agent skills are still hardcoded to `spec-driven` artifacts and don't offer schema selection to users.
+
+## What Changes
+
+**Scope: Experimental artifact workflow agent skills**
+
+**Depends on:** `add-per-change-schema-metadata` (must be implemented first)
+
+- Update `openspec-new-change` skill to prompt user for schema selection
+- Update `openspec-continue-change` skill to work with any schema's artifacts
+- Update `openspec-apply-change` skill to handle schema-specific task structures
+- Add schema descriptions to help users choose appropriate workflow
+
+## Capabilities
+
+### Modified Capabilities
+- `cli-artifact-workflow`: Agent skills support dynamic schema selection
+
+## Impact
+
+- **Affected code**: `src/core/templates/skill-templates.ts`
+- **User experience**: Users can choose TDD, spec-driven, or future workflows when starting a change
+- **Agent behavior**: Skills read artifact list from schema rather than hardcoding
+- **Backward compatible**: Default remains `spec-driven` if user doesn't choose

openspec/changes/archive/2026-01-06-add-agent-schema-selection/tasks.md

@@ -0,0 +1,32 @@
+## Prerequisites
+
+- [x] 0.1 Implement `add-per-change-schema-metadata` change first
+
+## 1. Schema Discovery
+
+- [x] 1.1 Add CLI command or helper to list schemas with descriptions (for agent use)
+- [x] 1.2 Ensure `openspec templates --schema <name>` returns artifact list for any schema
+
+## 2. Update New Change Skill
+
+- [x] 2.1 Add schema selection prompt using AskUserQuestion tool
+- [x] 2.2 Present available schemas with descriptions (spec-driven, tdd, etc.)
+- [x] 2.3 Pass selected schema to `openspec new change --schema <name>`
+- [x] 2.4 Update output to show which schema/workflow was selected
+
+## 3. Update Continue Change Skill
+
+- [x] 3.1 Remove hardcoded artifact references (proposal, specs, design, tasks)
+- [x] 3.2 Read artifact list dynamically from `openspec status --json`
+- [x] 3.3 Adjust artifact creation guidelines to be schema-agnostic
+- [x] 3.4 Handle schema-specific artifact types (e.g., TDD's `tests` artifact)
+
+## 4. Update Apply Change Skill
+
+- [x] 4.1 Make task detection work with different schema structures
+- [x] 4.2 Adjust context file reading for schema-specific artifacts
+
+## 5. Documentation
+
+- [x] 5.1 Add schema descriptions to help text or skill instructions
+- [x] 5.2 Document when to use each schema (TDD for bug fixes, spec-driven for features, etc.)

openspec/changes/archive/2026-01-06-add-per-change-schema-metadata/design.md

@@ -0,0 +1,147 @@
+## Context
+
+The experimental artifact workflow supports multiple schemas (`spec-driven`, `tdd`), but schema selection must be passed on every command. This creates friction for agents and users.
+
+We need a lightweight metadata file to persist the schema choice per change.
+
+## Goals / Non-Goals
+
+**Goals:**
+- Store schema choice once at change creation
+- Auto-detect schema in experimental workflow commands
+- Maintain backward compatibility (no metadata = default)
+- Validate metadata with Zod schema
+
+**Non-Goals:**
+- Migrate existing changes (they use default)
+- Extend to legacy commands
+- Store additional metadata beyond schema (keep minimal for now)
+
+## Decisions
+
+### Decision: Zod Schema Design
+
+The metadata file (`.openspec.yaml`) will be validated with this Zod schema:
+
+```typescript
+// src/core/artifact-graph/types.ts (or new metadata.ts)
+
+import { z } from 'zod';
+import { listSchemas } from './resolver.js';
+
+/**
+ * Schema for per-change metadata stored in .openspec.yaml
+ */
+export const ChangeMetadataSchema = z.object({
+  // Required: which workflow schema this change uses
+  schema: z.string().min(1, { message: 'schema is required' }).refine(
+    (val) => listSchemas().includes(val),
+    (val) => ({ message: `Unknown schema '${val}'. Available: ${listSchemas().join(', ')}` })
+  ),
+
+  // Optional: creation timestamp (ISO date string)
+  created: z.string().regex(/^\d{4}-\d{2}-\d{2}$/, {
+    message: 'created must be YYYY-MM-DD format'
+  }).optional(),
+});
+
+export type ChangeMetadata = z.infer<typeof ChangeMetadataSchema>;
+```
+
+**Rationale:**
+- `schema` is required and validated against available schemas at parse time
+- `created` is optional, ISO date format for consistency
+- Minimal fields - can extend later without breaking existing files
+- Follows existing codebase pattern (see `ArtifactSchema`, `SchemaYamlSchema`)
+
+### Decision: File Location and Format
+
+**Location:** `openspec/changes/<name>/.openspec.yaml`
+
+**Format:**
+```yaml
+schema: tdd
+created: 2025-01-05
+```
+
+**Alternatives considered:**
+- `change.yaml` - less hidden, but clutters directory
+- Frontmatter in `proposal.md` - couples to proposal existence
+- `openspec.json` - YAML matches existing schema files
+
+### Decision: Read/Write Functions
+
+```typescript
+// src/utils/change-metadata.ts
+
+import * as fs from 'node:fs';
+import * as path from 'node:path';
+import * as yaml from 'yaml';
+import { ChangeMetadataSchema, type ChangeMetadata } from '../core/artifact-graph/types.js';
+
+const METADATA_FILENAME = '.openspec.yaml';
+
+export function writeChangeMetadata(
+  changeDir: string,
+  metadata: ChangeMetadata
+): void {
+  // Validate before writing
+  const validated = ChangeMetadataSchema.parse(metadata);
+  const content = yaml.stringify(validated);
+  fs.writeFileSync(path.join(changeDir, METADATA_FILENAME), content);
+}
+
+export function readChangeMetadata(
+  changeDir: string
+): ChangeMetadata | null {
+  const metaPath = path.join(changeDir, METADATA_FILENAME);
+
+  if (!fs.existsSync(metaPath)) {
+    return null;
+  }
+
+  const content = fs.readFileSync(metaPath, 'utf-8');
+  const parsed = yaml.parse(content);
+
+  // Validate and return (throws ZodError if invalid)
+  return ChangeMetadataSchema.parse(parsed);
+}
+```
+
+### Decision: Schema Resolution Order
+
+When determining which schema to use:
+
+1. **Explicit `--schema` flag** (highest priority - user override)
+2. **`.openspec.yaml` metadata** (persisted choice)
+3. **Default `spec-driven`** (fallback)
+
+```typescript
+function resolveSchemaForChange(
+  changeDir: string,
+  explicitSchema?: string
+): string {
+  if (explicitSchema) return explicitSchema;
+
+  const metadata = readChangeMetadata(changeDir);
+  if (metadata?.schema) return metadata.schema;
+
+  return 'spec-driven';
+}
+```
+
+## Risks / Trade-offs
+
+- **Extra file per change** → Minimal overhead, hidden file
+- **YAML parsing dependency** → Already using `yaml` package for schema files
+- **Schema validation at read time** → Fail fast with clear error if corrupted
+
+## Migration Plan
+
+No migration needed:
+- Existing changes without `.openspec.yaml` continue to work (use default)
+- New changes created with `openspec new change --schema X` get metadata file
+
+## Open Questions
+
+- Should `openspec new change` prompt for schema interactively if not specified? (Leaning no - default is fine)

openspec/changes/archive/2026-01-06-add-per-change-schema-metadata/proposal.md

@@ -0,0 +1,29 @@
+## Why
+
+Currently, the schema (workflow type) must be passed via `--schema` flag on every experimental workflow command. This is repetitive and error-prone. Agents have no way to know which schema a change uses, so they default to `spec-driven` and cannot leverage alternative workflows like `tdd`.
+
+## What Changes
+
+**Scope: Experimental artifact workflow only** (`openspec new change`, `openspec status`, `openspec instructions`, `openspec templates`)
+
+- Store schema choice in `.openspec.yaml` metadata file when creating a change via `openspec new change`
+- Auto-detect schema from metadata in experimental workflow commands
+- Make `--schema` flag optional (override only, metadata takes precedence)
+- Add `--schema` option to `openspec new change` command
+
+**Not affected**: Legacy commands (`openspec validate`, `openspec archive`, `openspec list`, `openspec show`)
+
+## Capabilities
+
+### New Capabilities
+- `change-metadata`: Reading/writing per-change metadata files
+
+### Modified Capabilities
+- `cli-artifact-workflow`: Commands auto-detect schema from change metadata
+
+## Impact
+
+- **Affected code**: `src/utils/change-utils.ts`, `src/core/artifact-graph/instruction-loader.ts`, `src/commands/artifact-workflow.ts`
+- **Agent skills**: Can be simplified - no longer need to pass schema explicitly
+- **Backward compatible**: Changes without `.openspec.yaml` fall back to `spec-driven` default
+- **Isolation**: All changes contained within experimental workflow code; legacy commands untouched

openspec/changes/archive/2026-01-06-add-per-change-schema-metadata/specs/cli-artifact-workflow/spec.md

@@ -0,0 +1,98 @@
+## ADDED Requirements
+
+### Requirement: Change Metadata
+
+The system SHALL store and validate per-change metadata in `.openspec.yaml` files using a Zod schema.
+
+#### Scenario: Metadata file created with new change
+
+- **WHEN** user runs `openspec new change add-feature --schema tdd`
+- **THEN** the system creates `.openspec.yaml` in the change directory
+- **AND** the file contains `schema: tdd` and `created: <YYYY-MM-DD>`
+
+#### Scenario: Metadata validated on read
+
+- **WHEN** the system reads `.openspec.yaml`
+- **AND** the `schema` field references an unknown schema
+- **THEN** the system displays a validation error listing available schemas
+
+#### Scenario: Metadata schema validation
+
+- **WHEN** `.openspec.yaml` contains invalid YAML or missing required fields
+- **THEN** the system displays a Zod validation error with details
+
+#### Scenario: Missing metadata file
+
+- **WHEN** a change directory has no `.openspec.yaml` file
+- **THEN** the system falls back to the default schema (`spec-driven`)
+
+## MODIFIED Requirements
+
+### Requirement: New Change Command
+
+The system SHALL create new change directories with validation and optional schema metadata.
+
+#### Scenario: Create valid change
+
+- **WHEN** user runs `openspec new change add-feature`
+- **THEN** the system creates `openspec/changes/add-feature/` directory
+- **AND** creates `.openspec.yaml` with `schema: spec-driven` (default)
+
+#### Scenario: Create change with schema
+
+- **WHEN** user runs `openspec new change add-feature --schema tdd`
+- **THEN** the system creates `openspec/changes/add-feature/` directory
+- **AND** creates `.openspec.yaml` with `schema: tdd`
+
+#### Scenario: Invalid schema on create
+
+- **WHEN** user runs `openspec new change add-feature --schema unknown`
+- **THEN** the system displays an error listing available schemas
+- **AND** does not create the change directory
+
+#### Scenario: Invalid change name
+
+- **WHEN** user runs `openspec new change "Add Feature"` with invalid name
+- **THEN** the system displays validation error with guidance
+
+#### Scenario: Duplicate change name
+
+- **WHEN** user runs `openspec new change existing-change` for an existing change
+- **THEN** the system displays an error indicating the change already exists
+
+#### Scenario: Create with description
+
+- **WHEN** user runs `openspec new change add-feature --description "Add new feature"`
+- **THEN** the system creates the change directory with description in README.md
+
+### Requirement: Schema Selection
+
+The system SHALL support custom schema selection for workflow commands, with automatic detection from change metadata.
+
+#### Scenario: Schema auto-detected from metadata
+
+- **WHEN** user runs `openspec status --change <id>` without `--schema`
+- **AND** the change has `.openspec.yaml` with `schema: tdd`
+- **THEN** the system uses the `tdd` schema
+
+#### Scenario: Explicit schema overrides metadata
+
+- **WHEN** user runs `openspec status --change <id> --schema spec-driven`
+- **AND** the change has `.openspec.yaml` with `schema: tdd`
+- **THEN** the system uses `spec-driven` (explicit flag wins)
+
+#### Scenario: Default schema fallback
+
+- **WHEN** user runs workflow commands without `--schema`
+- **AND** the change has no `.openspec.yaml` file
+- **THEN** the system uses the "spec-driven" schema
+
+#### Scenario: Custom schema via flag
+
+- **WHEN** user runs `openspec status --change <id> --schema tdd`
+- **THEN** the system uses the specified schema for artifact graph
+
+#### Scenario: Unknown schema
+
+- **WHEN** user specifies an unknown schema
+- **THEN** the system displays an error listing available schemas

openspec/changes/archive/2026-01-06-add-per-change-schema-metadata/tasks.md

@@ -0,0 +1,29 @@
+## 1. Zod Schema and Types
+
+- [x] 1.1 Add `ChangeMetadataSchema` Zod schema to `src/core/artifact-graph/types.ts`
+- [x] 1.2 Export `ChangeMetadata` type inferred from schema
+
+## 2. Core Metadata Functions
+
+- [x] 2.1 Create `src/utils/change-metadata.ts` with `writeChangeMetadata()` function
+- [x] 2.2 Add `readChangeMetadata()` function with Zod validation
+- [x] 2.3 Update `createChange()` to accept optional `schema` param and write metadata
+
+## 3. Auto-Detection in Instruction Loader
+
+- [x] 3.1 Modify `loadChangeContext()` to read schema from `.openspec.yaml`
+- [x] 3.2 Make `schemaName` parameter optional (fall back to metadata, then default)
+
+## 4. CLI Updates
+
+- [x] 4.1 Add `--schema <name>` option to `openspec new change` command
+- [x] 4.2 Verify existing commands (`status`, `instructions`) work with auto-detection
+
+## 5. Tests
+
+- [x] 5.1 Test `ChangeMetadataSchema` validates correctly (valid/invalid cases)
+- [x] 5.2 Test `writeChangeMetadata()` creates valid YAML
+- [x] 5.3 Test `readChangeMetadata()` parses and validates schema
+- [x] 5.4 Test `loadChangeContext()` auto-detects schema from metadata
+- [x] 5.5 Test fallback to default when no metadata exists
+- [x] 5.6 Test `--schema` flag overrides metadata

openspec/changes/archive/2026-01-06-add-specs-apply-command/.openspec.yaml

@@ -0,0 +1,2 @@
+schema: spec-driven
+created: 2026-01-06

openspec/changes/archive/2026-01-06-add-specs-apply-command/design.md

@@ -0,0 +1,77 @@
+## Context
+
+Currently, delta specs are only applied to main specs when running `openspec archive`. This bundles two concerns:
+1. Applying spec changes (delta → main)
+2. Archiving the change (move to archive folder)
+
+Users want flexibility to sync specs earlier, especially when iterating. The archive command already contains the reconciliation logic in `buildUpdatedSpec()`.
+
+## Goals / Non-Goals
+
+**Goals:**
+- Decouple spec syncing from archiving
+- Provide `/opsx:sync` skill for agents to sync specs on demand
+- Keep operation idempotent (safe to run multiple times)
+
+**Non-Goals:**
+- Tracking whether specs have been synced (no state)
+- Changing archive behavior (it will continue to apply specs)
+- Supporting partial application (all deltas sync together)
+
+## Decisions
+
+### 1. Reuse existing reconciliation logic
+
+**Decision**: Extract `buildUpdatedSpec()` logic from `ArchiveCommand` into a shared module.
+
+**Rationale**: The archive command already implements delta parsing and application. Rather than duplicate, we extract and reuse.
+
+**Alternatives considered**:
+- Duplicate logic in new command (rejected: maintenance burden)
+- Have sync call archive with flags (rejected: coupling)
+
+### 2. No state tracking
+
+**Decision**: Don't track whether specs have been synced. Each invocation reads delta and main specs, reconciles.
+
+**Rationale**:
+- Idempotent operations don't need state
+- Avoids sync issues between flag and reality
+- Simpler implementation and mental model
+
+**Alternatives considered**:
+- Track `specsSynced: true` in `.openspec.yaml` (rejected: unnecessary complexity)
+- Store snapshot of synced deltas (rejected: over-engineering)
+
+### 3. Agent-driven approach (no CLI command)
+
+**Decision**: The `/opsx:sync` skill is fully agent-driven - the agent reads delta specs and directly edits main specs.
+
+**Rationale**:
+- Allows intelligent merging (add scenarios without copying entire requirements)
+- Delta represents *intent*, not wholesale replacement
+- More flexible and natural editing workflow
+- Archive still uses programmatic merge (for finalized changes)
+
+### 4. Archive behavior unchanged
+
+**Decision**: Archive continues to apply specs as part of its flow. If specs are already reconciled, the operation is a no-op.
+
+**Rationale**: Backward compatibility. Users who don't use `/opsx:sync` get the same experience.
+
+## Risks / Trade-offs
+
+**[Risk] Multiple changes modify same spec**
+→ Last to sync wins. Same as today with archive. Users should coordinate or use sequential archives.
+
+**[Risk] User syncs specs then continues editing deltas**
+→ Running `/opsx:sync` again reconciles. Idempotent design handles this.
+
+**[Trade-off] No undo mechanism**
+→ Users can `git checkout` main specs if needed. Explicit undo command is out of scope.
+
+## Implementation Approach
+
+1. Extract spec application logic from `ArchiveCommand.buildUpdatedSpec()` into `src/core/specs-apply.ts`
+2. Add skill template for `/opsx:sync` in `skill-templates.ts`
+3. Register skill in managed skills

openspec/changes/archive/2026-01-06-add-specs-apply-command/proposal.md

@@ -0,0 +1,32 @@
+## Why
+
+Spec application is currently bundled with archive - users must run `openspec archive` to apply delta specs to main specs. This couples two distinct concerns (applying specs vs. archiving the change) and forces users to wait until they're "done" to see main specs updated. Users want the flexibility to sync specs earlier in the workflow while iterating.
+
+## What Changes
+
+- Add `/opsx:sync` skill that syncs delta specs to main specs as a standalone action
+- The operation is idempotent - safe to run multiple times, agent reconciles main specs to match deltas
+- Archive continues to work as today (applies specs if not already reconciled, then moves to archive)
+- No new state tracking - the agent reads delta and main specs, reconciles on each run
+- Agent-driven approach allows intelligent merging (partial updates, adding scenarios)
+
+**Workflow becomes:**
+```
+/opsx:new → /opsx:continue → /opsx:apply → archive
+                                  │
+                                  └── /opsx:sync (optional, anytime)
+```
+
+## Capabilities
+
+### New Capabilities
+- `specs-sync-skill`: Skill template for `/opsx:sync` command that reconciles main specs with delta specs
+
+### Modified Capabilities
+- None (agent-driven, no CLI command needed)
+
+## Impact
+
+- **Skills**: New `openspec-sync-specs` skill in `skill-templates.ts`
+- **Archive**: No changes needed - already does reconciliation, will continue to work
+- **Agent workflow**: Users gain flexibility to sync specs before archive

openspec/changes/archive/2026-01-06-add-specs-apply-command/specs/specs-sync-skill/spec.md

@@ -0,0 +1,67 @@
+## ADDED Requirements
+
+### Requirement: Specs Sync Skill
+The system SHALL provide an `/opsx:sync` skill that syncs delta specs from a change to the main specs.
+
+#### Scenario: Sync delta specs to main specs
+- **WHEN** agent executes `/opsx:sync` with a change name
+- **THEN** the agent reads delta specs from `openspec/changes/<name>/specs/`
+- **AND** reads corresponding main specs from `openspec/specs/`
+- **AND** reconciles main specs to match what the deltas describe
+
+#### Scenario: Idempotent operation
+- **WHEN** agent executes `/opsx:sync` multiple times on the same change
+- **THEN** the result is the same as running it once
+- **AND** no duplicate requirements are created
+
+#### Scenario: Change selection prompt
+- **WHEN** agent executes `/opsx:sync` without specifying a change
+- **THEN** the agent prompts user to select from available changes
+- **AND** shows changes that have delta specs
+
+### Requirement: Delta Reconciliation Logic
+The agent SHALL reconcile main specs with delta specs using the delta operation headers.
+
+#### Scenario: ADDED requirements
+- **WHEN** delta contains `## ADDED Requirements` with a requirement
+- **AND** the requirement does not exist in main spec
+- **THEN** add the requirement to main spec
+
+#### Scenario: ADDED requirement already exists
+- **WHEN** delta contains `## ADDED Requirements` with a requirement
+- **AND** a requirement with the same name already exists in main spec
+- **THEN** update the existing requirement to match the delta version
+
+#### Scenario: MODIFIED requirements
+- **WHEN** delta contains `## MODIFIED Requirements` with a requirement
+- **AND** the requirement exists in main spec
+- **THEN** replace the requirement in main spec with the delta version
+
+#### Scenario: REMOVED requirements
+- **WHEN** delta contains `## REMOVED Requirements` with a requirement name
+- **AND** the requirement exists in main spec
+- **THEN** remove the requirement from main spec
+
+#### Scenario: RENAMED requirements
+- **WHEN** delta contains `## RENAMED Requirements` with FROM:/TO: format
+- **AND** the FROM requirement exists in main spec
+- **THEN** rename the requirement to the TO name
+
+#### Scenario: New capability spec
+- **WHEN** delta spec exists for a capability not in main specs
+- **THEN** create new main spec file at `openspec/specs/<capability>/spec.md`
+
+### Requirement: Skill Output
+The skill SHALL provide clear feedback on what was synced.
+
+#### Scenario: Show synced changes
+- **WHEN** reconciliation completes successfully
+- **THEN** display summary of changes per capability:
+  - Number of requirements added
+  - Number of requirements modified
+  - Number of requirements removed
+  - Number of requirements renamed
+
+#### Scenario: No changes needed
+- **WHEN** main specs already match delta specs
+- **THEN** display "Specs already in sync - no changes needed"

openspec/changes/archive/2026-01-06-add-specs-apply-command/tasks.md

@@ -0,0 +1,40 @@
+## Tasks
+
+### Core Implementation
+
+- [x] Extract spec application logic from `ArchiveCommand` into `src/core/specs-apply.ts`
+  - Move `buildUpdatedSpec()`, `findSpecUpdates()`, `writeUpdatedSpec()` to shared module
+  - Keep `ArchiveCommand` importing from the new module
+  - Ensure all validation logic is preserved
+
+### Skill Template
+
+- [x] Add `getSyncSpecsSkillTemplate()` function in `src/core/templates/skill-templates.ts`
+  - Skill name: `openspec-sync-specs`
+  - Description: Sync delta specs to main specs
+  - **Agent-driven**: Instructions for agent to read deltas and edit main specs directly
+
+- [x] Add `/opsx:sync` slash command template in `skill-templates.ts`
+  - Mirror the skill template for slash command format
+  - **Agent-driven**: No CLI command, agent does the merge
+
+### Registration
+
+- [x] Register skill in managed skills (via `artifact-experimental-setup`)
+  - Add to skill list with appropriate metadata
+  - Ensure it appears in setup output
+
+### Design Decision
+
+**Why agent-driven instead of CLI-driven?**
+
+The programmatic merge operates at requirement-level granularity:
+- MODIFIED requires copying ALL scenarios, not just the changed ones
+- If agent forgets a scenario, it gets deleted
+- Delta specs become bloated with copied content
+
+Agent-driven approach:
+- Agent can apply partial updates (add a scenario without copying others)
+- Delta represents *intent*, not wholesale replacement
+- More flexible and natural editing workflow
+- Archive still uses programmatic merge (for finalized changes)

openspec/changes/archive/2026-01-06-make-apply-instructions-schema-aware/proposal.md

@@ -0,0 +1,138 @@
+## Why
+
+The `generateApplyInstructions` function is hardcoded to check for `spec-driven` artifacts (`proposal.md`, `specs/`, `design.md`, `tasks.md`). If a user selects a different schema like `tdd`, the apply instructions are meaningless - they check for files that don't exist in that schema.
+
+This blocks the experimental workflow from supporting multiple schemas properly.
+
+## What Changes
+
+**Scope: Experimental artifact workflow** (`openspec instructions apply`)
+
+**Depends on:** `add-per-change-schema-metadata` (to know which schema a change uses)
+
+- Make `generateApplyInstructions` read artifact definitions from the schema
+- Dynamically determine which artifacts exist based on schema
+- Define when a change becomes "implementable" (see Design Decision below)
+- Generate schema-appropriate context files and instructions
+
+## Design Decision: When is a change implementable?
+
+This is the key question. Different approaches:
+
+### Option A: Explicit `apply` artifact in schema
+
+Add a field to mark which artifact is the "implementation gate":
+
+```yaml
+artifacts:
+  - id: tasks
+    generates: tasks.md
+    apply: true  # ← This artifact triggers apply mode
+```
+
+**Pros:** Explicit, flexible
+**Cons:** Another field to maintain, what if multiple artifacts are `apply: true`?
+
+### Option B: Leaf artifacts are implementable
+
+The artifact(s) with no dependents (nothing depends on them) are the apply target.
+
+- `spec-driven`: `tasks` is a leaf → apply = execute tasks
+- `tdd`: `docs` is a leaf → but that doesn't make sense for TDD...
+
+**Pros:** No extra schema field, derived from graph
+**Cons:** Doesn't match TDD semantics (implementation is the action, not docs)
+
+### Option C: Schema-level `apply_phase` definition
+
+Add a top-level field to the schema:
+
+```yaml
+name: spec-driven
+apply_phase:
+  requires: [tasks]  # Must exist before apply
+  tracks: tasks.md   # File with checkboxes to track
+  instruction: "Work through tasks, mark complete as you go"
+```
+
+```yaml
+name: tdd
+apply_phase:
+  requires: [tests]  # Must have tests before implementing
+  tracks: null       # No checkbox tracking - just make tests pass
+  instruction: "Run tests, implement until green, refactor"
+```
+
+**Pros:** Full flexibility, schema controls its own apply semantics
+**Cons:** More complex schema format
+
+### Option D: Convention-based (artifact ID matching)
+
+If artifact ID is `tasks` or `implementation`, it's the apply target.
+
+**Pros:** Simple, no schema changes
+**Cons:** Brittle, doesn't work for custom schemas
+
+### Option E: All artifacts complete → apply available
+
+Apply becomes available when ALL schema artifacts exist. Implementation is whatever the user does after planning.
+
+**Pros:** Simple, no schema changes
+**Cons:** Doesn't guide what "apply" means for different workflows
+
+---
+
+## Decision: Add `apply` block to schema.yaml
+
+Add a top-level `apply` field to schema definitions:
+
+```yaml
+name: spec-driven
+version: 1
+description: Default OpenSpec workflow
+
+artifacts:
+  # ... existing artifacts ...
+
+apply:
+  requires: [tasks]           # Artifacts that must exist before apply
+  tracks: tasks.md            # File with checkboxes for progress (optional)
+  instruction: |              # Guidance shown to agent
+    Read context files, work through pending tasks, mark complete as you go.
+    Pause if you hit blockers or need clarification.
+```
+
+```yaml
+name: tdd
+version: 1
+description: Test-driven development workflow
+
+artifacts:
+  # ... existing artifacts ...
+
+apply:
+  requires: [tests]           # Must have tests before implementing
+  tracks: null                # No checkbox tracking
+  instruction: |
+    Run tests to see failures. Implement minimal code to pass each test.
+    Refactor while keeping tests green.
+```
+
+**Key properties:**
+- `requires`: Array of artifact IDs that must exist before apply is available
+- `tracks`: Path to file with checkboxes (relative to change dir), or `null` if no tracking
+- `instruction`: Custom guidance for the apply phase
+
+**Fallback behavior:** Schemas without `apply` block default to "all artifacts must exist"
+
+## Capabilities
+
+### Modified Capabilities
+- `cli-artifact-workflow`: Apply instructions become schema-aware
+
+## Impact
+
+- **Affected code**: `src/commands/artifact-workflow.ts` (generateApplyInstructions)
+- **Schema format**: May need new `apply_phase` field
+- **Existing schemas**: Need to add apply_phase to `spec-driven` and `tdd`
+- **Backward compatible**: Schemas without apply_phase can use default behavior

openspec/changes/archive/2026-01-06-make-apply-instructions-schema-aware/specs/cli-artifact-workflow/spec.md

@@ -0,0 +1,60 @@
+## ADDED Requirements
+
+### Requirement: Schema Apply Block
+
+The system SHALL support an `apply` block in schema definitions that controls when and how implementation begins.
+
+#### Scenario: Schema with apply block
+
+- **WHEN** a schema defines an `apply` block
+- **THEN** the system uses `apply.requires` to determine which artifacts must exist before apply
+- **AND** uses `apply.tracks` to identify the file for progress tracking (or null if none)
+- **AND** uses `apply.instruction` for guidance shown to the agent
+
+#### Scenario: Schema without apply block
+
+- **WHEN** a schema has no `apply` block
+- **THEN** the system requires all artifacts to exist before apply is available
+- **AND** uses default instruction: "All artifacts complete. Proceed with implementation."
+
+### Requirement: Apply Instructions Command
+
+The system SHALL generate schema-aware apply instructions via `openspec instructions apply`.
+
+#### Scenario: Generate apply instructions
+
+- **WHEN** user runs `openspec instructions apply --change <id>`
+- **AND** all required artifacts (per schema's `apply.requires`) exist
+- **THEN** the system outputs:
+  - Context files from all existing artifacts
+  - Schema-specific instruction text
+  - Progress tracking file path (if `apply.tracks` is set)
+
+#### Scenario: Apply blocked by missing artifacts
+
+- **WHEN** user runs `openspec instructions apply --change <id>`
+- **AND** required artifacts are missing
+- **THEN** the system indicates apply is blocked
+- **AND** lists which artifacts must be created first
+
+#### Scenario: Apply instructions JSON output
+
+- **WHEN** user runs `openspec instructions apply --change <id> --json`
+- **THEN** the system outputs JSON with:
+  - `contextFiles`: array of paths to existing artifacts
+  - `instruction`: the apply instruction text
+  - `tracks`: path to progress file or null
+  - `applyRequires`: list of required artifact IDs
+
+## MODIFIED Requirements
+
+### Requirement: Status Command
+
+The system SHALL display artifact completion status for a change, including apply readiness.
+
+#### Scenario: Status JSON includes apply requirements
+
+- **WHEN** user runs `openspec status --change <id> --json`
+- **THEN** the system outputs JSON with:
+  - `changeName`, `schemaName`, `isComplete`, `artifacts` array
+  - `applyRequires`: array of artifact IDs needed for apply phase

openspec/changes/archive/2026-01-06-make-apply-instructions-schema-aware/tasks.md

@@ -0,0 +1,35 @@
+## Prerequisites
+
+- [x] 0.1 Implement `add-per-change-schema-metadata` first (to auto-detect schema)
+
+## 1. Schema Format
+
+- [x] 1.1 Add `ApplyPhaseSchema` Zod schema to `src/core/artifact-graph/types.ts`
+- [x] 1.2 Update `SchemaYamlSchema` to include optional `apply` field
+- [x] 1.3 Export `ApplyPhase` type
+
+## 2. Update Existing Schemas
+
+- [x] 2.1 Add `apply` block to `schemas/spec-driven/schema.yaml`
+- [x] 2.2 Add `apply` block to `schemas/tdd/schema.yaml`
+
+## 3. Refactor generateApplyInstructions
+
+- [x] 3.1 Load schema via `resolveSchema(schemaName)`
+- [x] 3.2 Read `apply.requires` to determine required artifacts
+- [x] 3.3 Check artifact existence dynamically (not hardcoded paths)
+- [x] 3.4 Use `apply.tracks` for progress tracking (or skip if null)
+- [x] 3.5 Use `apply.instruction` for the instruction text
+- [x] 3.6 Build `contextFiles` from all existing artifacts in schema
+
+## 4. Handle Fallback
+
+- [x] 4.1 If schema has no `apply` block, require all artifacts to exist
+- [x] 4.2 Default instruction: "All artifacts complete. Proceed with implementation."
+
+## 5. Tests
+
+- [x] 5.1 Test apply instructions with spec-driven schema
+- [x] 5.2 Test apply instructions with tdd schema
+- [x] 5.3 Test fallback when schema has no apply block
+- [x] 5.4 Test blocked state when required artifacts missing

openspec/changes/archive/2026-01-06-opsx-archive-command/.openspec.yaml

@@ -0,0 +1,2 @@
+schema: spec-driven
+created: 2026-01-07

openspec/changes/archive/2026-01-06-opsx-archive-command/design.md

@@ -0,0 +1,84 @@
+## Context
+
+The experimental workflow (OPSX) provides a complete lifecycle for creating changes:
+- `/opsx:new` - Scaffold a new change with schema
+- `/opsx:continue` - Create next artifact
+- `/opsx:ff` - Fast-forward all artifacts
+- `/opsx:apply` - Implement tasks
+- `/opsx:sync` - Sync delta specs to main
+
+The missing piece is archiving. The existing `openspec archive` command works but:
+1. Applies specs programmatically (not agent-driven)
+2. Doesn't use the artifact graph for completion checking
+3. Doesn't integrate with the OPSX workflow philosophy
+
+## Goals / Non-Goals
+
+**Goals:**
+- Add `/opsx:archive` skill to complete the OPSX workflow lifecycle
+- Use artifact graph for schema-aware completion checking
+- Integrate with `/opsx:sync` for agent-driven spec syncing
+- Preserve `.openspec.yaml` schema metadata in archive
+
+**Non-Goals:**
+- Replacing the existing `openspec archive` CLI command
+- Changing how specs are applied in the CLI command
+- Modifying the artifact graph or schema system
+
+## Decisions
+
+### Decision 1: Skill-only implementation (no new CLI command)
+
+The `/opsx:archive` will be a slash command/skill only, not a new CLI command.
+
+**Rationale**: The existing `openspec archive` CLI command already handles the core archive functionality (moving to archive folder, date prefixing). The OPSX version just needs different pre-archive checks and optional sync prompting, which are agent behaviors better suited to a skill.
+
+**Alternatives considered**:
+- Adding flags to `openspec archive` (e.g., `--experimental`) - Rejected: adds complexity to CLI, harder to maintain two code paths
+- New CLI command `openspec archive-experimental` - Rejected: unnecessary duplication, agent skills are the OPSX pattern
+
+### Decision 2: Prompt for sync before archive
+
+The skill will check for unsynced delta specs and prompt the user before archiving.
+
+**Rationale**: The OPSX philosophy is agent-driven intelligent merging via `/opsx:sync`. Rather than programmatically applying specs like the regular archive command, we prompt the user to sync first if needed. This maintains workflow flexibility (user can decline and just archive).
+
+**Flow**:
+1. Check if `specs/` directory exists in the change
+2. If yes, ask: "This change has delta specs. Would you like to sync them to main specs before archiving?"
+3. If user says yes, execute `/opsx:sync` logic
+4. Proceed with archive regardless of answer
+
+### Decision 3: Use artifact graph for completion checking
+
+The skill will use `openspec status --change "<name>" --json` to check artifact completion instead of just validating proposal.md and specs.
+
+**Rationale**: The experimental workflow is schema-aware. Different schemas have different required artifacts. The artifact graph knows which artifacts are complete/incomplete for the current schema.
+
+**Behavior**:
+- Show warning if any artifacts are not `done`
+- Don't block archive (user may have valid reasons to archive early)
+- List incomplete artifacts so user can make informed decision
+
+### Decision 4: Reuse tasks.md completion check from regular archive
+
+The skill will parse tasks.md and warn about incomplete tasks, same as regular archive.
+
+**Rationale**: Task completion checking is valuable regardless of workflow. The logic is simple (count `- [ ]` vs `- [x]`) and doesn't need special OPSX handling.
+
+### Decision 5: Move change to archive/ with date prefix
+
+Same archive behavior as regular command: move to `openspec/changes/archive/YYYY-MM-DD-<name>/`.
+
+**Rationale**: Consistency with existing archive convention. The `.openspec.yaml` file moves with the change, preserving schema metadata.
+
+## Risks / Trade-offs
+
+**Risk**: Users confused about when to use `/opsx:archive` vs `openspec archive`
+→ **Mitigation**: Documentation should clarify: use `/opsx:archive` if you've been using the OPSX workflow, use `openspec archive` otherwise. Both produce the same archived result.
+
+**Risk**: Incomplete sync if user declines and has delta specs
+→ **Mitigation**: The prompt is informational; user has full control. They may want to archive without syncing (e.g., abandoned change). Log a note in output.
+
+**Trade-off**: No programmatic spec application in OPSX archive
+→ **Accepted**: This is intentional. OPSX philosophy is agent-driven merging. If user wants programmatic application, use `openspec archive` instead.

openspec/changes/archive/2026-01-06-opsx-archive-command/proposal.md

@@ -0,0 +1,28 @@
+## Why
+
+The experimental workflow (OPSX) provides a schema-driven, artifact-by-artifact approach to creating changes with `/opsx:new`, `/opsx:continue`, `/opsx:ff`, `/opsx:apply`, and `/opsx:sync`. However, there's no corresponding archive command to finalize and archive completed changes. Users must currently fall back to the regular `openspec archive` command, which doesn't integrate with the OPSX philosophy of agent-driven spec syncing and schema-aware artifact tracking.
+
+## What Changes
+
+- Add `/opsx:archive` slash command for archiving changes in the experimental workflow
+- Use artifact graph to check completion status (schema-aware) instead of just validating proposal + specs
+- Prompt for `/opsx:sync` before archiving instead of programmatically applying specs
+- Preserve `.openspec.yaml` schema metadata when moving to archive
+- Integrate with existing OPSX commands for a cohesive workflow
+
+## Capabilities
+
+### New Capabilities
+
+- `opsx-archive-skill`: Slash command and skill for archiving completed changes in the experimental workflow. Checks artifact completion via artifact graph, verifies task completion, optionally syncs specs via `/opsx:sync`, and moves the change to `archive/YYYY-MM-DD-<name>/`.
+
+### Modified Capabilities
+
+(none - this is a new skill that doesn't modify existing specs)
+
+## Impact
+
+- New file: `.claude/commands/opsx/archive.md`
+- New skill definition (generated via `openspec artifact-experimental-setup`)
+- No changes to existing archive command or other OPSX commands
+- Completes the OPSX command suite for full lifecycle management

openspec/changes/archive/2026-01-06-opsx-archive-command/specs/opsx-archive-skill/spec.md

@@ -0,0 +1,122 @@
+## ADDED Requirements
+
+### Requirement: OPSX Archive Skill
+
+The system SHALL provide an `/opsx:archive` skill that archives completed changes in the experimental workflow.
+
+#### Scenario: Archive a change with all artifacts complete
+
+- **WHEN** agent executes `/opsx:archive` with a change name
+- **AND** all artifacts in the schema are complete
+- **AND** all tasks are complete
+- **THEN** the agent moves the change to `openspec/changes/archive/YYYY-MM-DD-<name>/`
+- **AND** displays success message with archived location
+
+#### Scenario: Change selection prompt
+
+- **WHEN** agent executes `/opsx:archive` without specifying a change
+- **THEN** the agent prompts user to select from available changes
+- **AND** shows only active changes (excludes archive/)
+
+### Requirement: Artifact Completion Check
+
+The skill SHALL check artifact completion status using the artifact graph before archiving.
+
+#### Scenario: Incomplete artifacts warning
+
+- **WHEN** agent checks artifact status
+- **AND** one or more artifacts have status other than `done`
+- **THEN** display warning listing incomplete artifacts
+- **AND** prompt user for confirmation to continue
+- **AND** proceed if user confirms
+
+#### Scenario: All artifacts complete
+
+- **WHEN** agent checks artifact status
+- **AND** all artifacts have status `done`
+- **THEN** proceed without warning
+
+### Requirement: Task Completion Check
+
+The skill SHALL check task completion status from tasks.md before archiving.
+
+#### Scenario: Incomplete tasks found
+
+- **WHEN** agent reads tasks.md
+- **AND** incomplete tasks are found (marked with `- [ ]`)
+- **THEN** display warning showing count of incomplete tasks
+- **AND** prompt user for confirmation to continue
+- **AND** proceed if user confirms
+
+#### Scenario: All tasks complete
+
+- **WHEN** agent reads tasks.md
+- **AND** all tasks are complete (marked with `- [x]`)
+- **THEN** proceed without task-related warning
+
+#### Scenario: No tasks file
+
+- **WHEN** tasks.md does not exist
+- **THEN** proceed without task-related warning
+
+### Requirement: Spec Sync Prompt
+
+The skill SHALL prompt to sync delta specs before archiving if specs exist.
+
+#### Scenario: Delta specs exist
+
+- **WHEN** agent checks for delta specs
+- **AND** `specs/` directory exists in the change with spec files
+- **THEN** prompt user: "This change has delta specs. Would you like to sync them to main specs before archiving?"
+- **AND** if user confirms, execute `/opsx:sync` logic
+- **AND** proceed with archive regardless of sync choice
+
+#### Scenario: No delta specs
+
+- **WHEN** agent checks for delta specs
+- **AND** no `specs/` directory or no spec files exist
+- **THEN** proceed without sync prompt
+
+### Requirement: Archive Process
+
+The skill SHALL move the change to the archive folder with date prefix.
+
+#### Scenario: Successful archive
+
+- **WHEN** archiving a change
+- **THEN** create `archive/` directory if it doesn't exist
+- **AND** generate target name as `YYYY-MM-DD-<change-name>` using current date
+- **AND** move entire change directory to archive location
+- **AND** preserve `.openspec.yaml` file in archived change
+
+#### Scenario: Archive already exists
+
+- **WHEN** target archive directory already exists
+- **THEN** fail with error message
+- **AND** suggest renaming existing archive or using different date
+
+### Requirement: Skill Output
+
+The skill SHALL provide clear feedback about the archive operation.
+
+#### Scenario: Archive complete with sync
+
+- **WHEN** archive completes after syncing specs
+- **THEN** display summary:
+  - Specs synced (from `/opsx:sync` output)
+  - Change archived to location
+  - Schema that was used
+
+#### Scenario: Archive complete without sync
+
+- **WHEN** archive completes without syncing specs
+- **THEN** display summary:
+  - Note that specs were not synced (if applicable)
+  - Change archived to location
+  - Schema that was used
+
+#### Scenario: Archive complete with warnings
+
+- **WHEN** archive completes with incomplete artifacts or tasks
+- **THEN** include note about what was incomplete
+- **AND** suggest reviewing if archive was intentional

openspec/changes/archive/2026-01-06-opsx-archive-command/tasks.md

@@ -0,0 +1,23 @@
+## 1. Create Slash Command
+
+- [x] 1.1 Create `.claude/commands/opsx/archive.md` with skill definition
+- [x] 1.2 Add YAML frontmatter (name, description, category, tags)
+- [x] 1.3 Implement change selection logic (prompt if not provided)
+- [x] 1.4 Implement artifact completion check using `openspec status --json`
+- [x] 1.5 Implement task completion check (parse tasks.md for `- [ ]`)
+- [x] 1.6 Implement spec sync prompt (check for specs/ directory, offer `/opsx:sync`)
+- [x] 1.7 Implement archive process (move to archive/YYYY-MM-DD-<name>/)
+- [x] 1.8 Add output formatting for success/warning cases
+
+## 2. Regenerate Skills
+
+- [x] 2.1 Run `openspec artifact-experimental-setup` to regenerate skills
+- [x] 2.2 Verify skill appears in `.claude/skills/` directory
+
+## 3. Testing
+
+- [x] 3.1 Test `/opsx:archive` with a complete change (all artifacts, all tasks done)
+- [x] 3.2 Test `/opsx:archive` with incomplete artifacts (verify warning shown)
+- [x] 3.3 Test `/opsx:archive` with incomplete tasks (verify warning shown)
+- [x] 3.4 Test `/opsx:archive` with delta specs (verify sync prompt shown)
+- [x] 3.5 Test `/opsx:archive` without change name (verify selection prompt)