> **🏗️ build-from-issue-agent** Closes #82 ## Summary When OPA returns `inspect_for_inference`, the proxy now emits a second structured CONNECT log with `action=deny` when the connection is ultimately rejected. This restores operator visibility into inference interception denials (TLS handshake failure, non-inference request, client disconnect, payload too large, I/O error). ## Changes Made - `crates/navigator-sandbox/src/proxy.rs`: Added `InferenceOutcome` enum (`Routed` / `Denied { reason }`), refactored `handle_inference_interception` to return it, updated `route_inference_request` to return `Result<bool>`, added structured CONNECT deny log emission at the call site in `handle_tcp_connection` - `architecture/sandbox.md`: Documented the two-log pattern, `InferenceOutcome` enum, and updated error handling table ## Deviations from Plan None — implemented as planned ## Tests Added - **Unit:** N/A — changes involve TLS+proxy interactions not practical to unit test in isolation - **Integration:** N/A - **E2E:** Existing 134 tests all pass; inference routing correctness covered by existing suite ## Documentation Updated - `architecture/sandbox.md`: Updated inference interception section, error handling table, and logging section ## Verification - [x] All tests passing (134/134) - [x] Pre-commit checks passing (fmt, clippy, tests) - [x] Architecture documentation updated
Navigator 🗺️
Navigator is the runtime environment for autonomous agents—the "Matrix" where they live, work, and verify.
While coding tools like Claude help agents write logic, Navigator provides the infrastructure to run it, offering a programmable factory where agents can spin up physics simulations to master tasks, generate synthetic data to fix edge cases, and safely iterate through thousands of failures in isolated sandboxes.
It transforms the data center from a static deployment target into a continuous verification engine, allowing agents to autonomously build and operate complex systems—from physical robotics to self-healing infrastructure—without needing a human to manage the infrastructure.
Quickstart
Prerequisites
- Docker — Docker Desktop (or a Docker daemon) must be running.
- Python 3.12+ and uv
Install
uv pip install navigator --upgrade --pre --index-url https://urm.nvidia.com/artifactory/api/pypi/nv-shared-pypi/simple
The navigator binary is installed into your Python environment. Use uv run navigator to invoke it, or activate your venv first (source .venv/bin/activate).
Create a sandbox
uv run navigator sandbox create -- claude # or opencode or codex
The sandbox container includes a minimal networking toolset by default: ping, dig, nslookup, nc, traceroute, and netstat.
Developing
See CONTRIBUTING.md for building from source and contributing to Navigator.
Architecture
See architecture/ for detailed architecture docs and design decisions.