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Rohit Ghumare ed6d0c0196 feat: add agent skills track and stateless MCP curriculum (#422)
* feat(phase-13/22): teach portable agent skill contracts

Agent skills need a portable contract before host-specific metadata and runtime policy can be reasoned about.

* fix(phase-13/23): make the ecosystem capstone accurate

The capstone should model current A2A operations, portable artifact metadata, and deterministic trace timing.

* feat(phase-13/24): teach skill discovery and disclosure

A useful skill catalog needs explicit scope precedence and bounded progressive disclosure before instructions are loaded.

* feat(phase-13/25): teach invocation policy and routing

Human, model, application, and skill activation need separate policy decisions before relevance ranking can be trusted.

* feat(phase-13/26): teach skill sandbox and trust boundaries

Skill instructions are untrusted input, so authority must remain host-owned and every filesystem, network, and command boundary must fail closed.

* feat(phase-13/27): add the skill release gate

A distributable skill needs adversarial structure, routing, safety, artifact, provenance, installation, and portability evidence before release.

* feat(skills): install and render complete skill bundles

Progressive-disclosure skills must keep companion references, scripts, assets, and evals intact across discovery, installation, and lesson rendering.

* docs(curriculum): index the agent skills mini-course

The expanded Phase 13 sequence needs consistent lesson links, durations, translations, and shared terminology across every learner entry point.

* feat(certification/11): teach stateless MCP integration

Certification learners need the same stateless wire model as the production curriculum.

* feat(phase-11/14): modernize MCP protocol contracts

The foundational MCP lesson must no longer teach the removed session lifecycle.

* fix(phase-13/01): align tool terms with stateless MCP

The tool interface introduction should point to the current protocol vocabulary.

* feat(phase-13/06): teach stateless MCP fundamentals

Learners need the current per-request contract before building clients or servers.

* feat(phase-13/07): build a stateless MCP server

The server lab should model the protocol that new implementations actually ship.

* feat(phase-13/08): build a stateless MCP client

The client lab must negotiate every request without relying on session state.

* feat(phase-13/09): teach current Streamable HTTP

Transport examples need the current POST-only lifecycle and notification behavior.

* feat(phase-13/10): teach stateless resources and prompts

Resource and prompt discovery must reflect stateless cache and result contracts.

* feat(phase-13/11): teach per-request sampling

Sampling calls must carry current capabilities and stateless response semantics.

* feat(phase-13/12): teach roots and elicitation retries

Elicitation retries and roots handling need current capability and MRTR boundaries.

* feat(phase-13/13): teach stateless MCP tasks

Task storage and subscriptions must survive cross-instance stateless requests.

* feat(phase-13/14): update MCP Apps contracts

Apps learners need current bridge, subscription, and discovery boundaries.

* feat(phase-13/15): update MCP threat boundaries

Threat modeling must cover current routing and MRTR state boundaries.

* feat(phase-13/16): update MCP OAuth contracts

OAuth examples must bind issuers and resources while using current errors.

* feat(phase-13/17): update gateway and registry contracts

Registry admission must separate publication identity from runtime discovery.

* feat(phase-13/18): teach production MCP authentication

Production auth should implement real PKCE, CIMD, and resource-bound caching.

* docs(phase-13/22): add a runnable skill quickstart

Beginners need an exact repository-root path from bundle inspection to host use.

* fix(phase-13/23): make the capstone stateless

The ecosystem capstone must compose the same current contracts taught upstream.

* docs(phase-13/24): clarify host discovery limits

Learners should distinguish known context budgets from host fallback behavior.

* docs(phase-13/26): clarify sandbox prerequisites

The safety lab needs explicit prerequisites and a viable conceptual fallback.

* docs(phase-13/27): add real-host release evidence

A production claim should require installed-host evidence beyond deterministic fixtures.

* docs(phase-16/02): update MCP legacy comparison

The interoperability comparison should use the current stateless MCP lifecycle.

* feat(phase-19/13): modernize the MCP registry capstone

The production capstone must separate Registry publication from stateless runtime discovery.

* docs(curriculum): index agent skills and stateless MCP

Learners need one coherent route through the skills track and current MCP sequence.

* feat(skills): add a focused agent skills learner path

A dedicated route removes placement and navigation friction for focused learners.

* feat(mcp): add production engineering track

* fix(cert-11): harden MCP integration contract

* fix(phase-11-14): classify MCP handler failures

* fix(mcp-07): validate JSON-RPC request identifiers

* fix(mcp-08): reuse strict response decoding

* fix(mcp-09): harden HTTP transport boundaries

* fix(mcp-11): isolate returned tool descriptors

* fix(mcp-12): make continuation state single-use

* fix(mcp-14): align lesson response metadata

* fix(mcp-15): expire and consume continuation state

* fix(mcp-16): bind OAuth enrollment and code exchange

* fix(mcp-18): enforce redirect and code lifetimes

* fix(mcp-23): validate task identifiers

* fix(skills-24): clarify discovery boundaries

* fix(skills-25): deny unknown invocation actors

* fix(skills-26): validate approval policy shape

* fix(mcp-28): terminate unsafe cursor pagination

* fix(mcp-29): preserve completed request state

* fix(mcp-30): require secure remote endpoints

* fix(mcp-31): strengthen conformance checks

* fix(agent-skills): align route prerequisites

* fix(scripts): harden skill bundle installation

* fix(site): validate learning and artifact boundaries

* fix(course): address review edge cases

* fix(mcp): tighten notification and redirect validation

* fix(mcp): secure reproducible lesson state

* fix(mcp): use required lesson header comments
2026-08-23 18:01:53 +01:00

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{
"lesson": "10-mcp-resources-and-prompts",
"title": "MCP Resources and Prompts",
"questions": [
{
"stage": "pre",
"question": "A host needs to retrieve a stable architecture note by URI. Which MCP primitive fits best?",
"options": [
"A resource",
"A cancellation notification",
"A protocol session",
"A destructive tool"
],
"correct": 0,
"explanation": "A resource exposes addressable content through a URI. A tool performs an operation, while sessions and cancellation do not model readable content."
},
{
"stage": "check",
"question": "What should a 2026-07-28 server return when resources/read receives an unknown resource URI?",
"options": [
"A resources/list_changed notification",
"JSON-RPC error -32601",
"An empty successful contents array",
"JSON-RPC error -32602"
],
"correct": 3,
"explanation": "The current Resources contract uses invalid parameters, code -32602, for an invalid or unknown resource URI. Empty success would hide a caller error."
},
{
"stage": "check",
"question": "Which cache policy is safest for a user-owned note returned by resources/read?",
"options": [
"Public because the URI is stable",
"Shared across users when the MIME type matches",
"Private with a bounded TTL",
"Public with an unlimited TTL"
],
"correct": 2,
"explanation": "A user-owned result should not cross identity boundaries. A bounded private cache can reduce repeated reads while preserving the authorization context."
},
{
"stage": "check",
"question": "What identifies every notification on a subscriptions/listen response stream?",
"options": [
"The original listen request ID in subscription metadata",
"The resource MIME type",
"A newly generated protocol session",
"The server process ID"
],
"correct": 0,
"explanation": "The JSON-RPC ID of subscriptions/listen becomes io.modelcontextprotocol/subscriptionId and is repeated in the acknowledgment and every later event."
},
{
"stage": "post",
"question": "Why must resources/list and prompts/list be deterministic for the same request inputs?",
"options": [
"To grant public access to all returned entries",
"To avoid validating pagination cursors",
"To stabilize caches, snapshots, and host interfaces",
"To make list membership depend on a prior read"
],
"correct": 2,
"explanation": "Stable membership and ordering prevent noisy cache misses and changing interfaces. Authorization can still affect visibility because credentials are explicit request input."
},
{
"stage": "post",
"question": "What must a current MCP server expose even when clients may call resources/list directly?",
"options": [
"A resources/subscribe method for every URI",
"An initialize method that creates a protocol session",
"A standalone HTTP GET event stream",
"server/discover with supported revisions and capabilities"
],
"correct": 3,
"explanation": "Servers must implement server/discover so clients can obtain one capability and version snapshot. Calling it remains optional for a client, which may call another method and handle a structured version error."
}
]
}