modelcontextprotocol

Prepare a new release for the C# MCP SDK. Assesses Semantic Versioning level (PATCH/MINOR/MAJOR), bumps the version, runs ApiCompat and ApiDiff, reviews documentation, updates changelogs, drafts release notes, and creates a pull request with all release artifacts. Use when asked to prepare a release, start a release, create a release PR, or assess what the next release should be.

Publish a GitHub release for the C# MCP SDK after a prepare-release PR has been merged. Refreshes release notes to include any PRs merged since preparation, warns about version or breaking change impacts from late-arriving PRs, and creates a draft GitHub release. Use when asked to publish a release, finalize a release, create release notes, or complete a release after the prepare-release PR has been merged.

Assess and bump the SDK version using Semantic Versioning 2.0.0. Evaluates queued changes to recommend PATCH/MINOR/MAJOR, updates src/Directory.Build.props, and creates a pull request. Owns the SemVer assessment logic shared by prepare-release and publish-release. Use when asked to bump the version, assess the version, or determine what the next version should be.

Audit pull requests for breaking changes in the C# MCP SDK. Examines PR descriptions, review comments, and diffs to identify API and behavioral breaking changes, then reconciles labels with user confirmation. Use when asked to audit breaking changes, check for breaking changes, or review a set of PRs for breaking impact.

Generate an issue triage report for the C# MCP SDK. Fetches all open issues, evaluates SLA compliance against SDK tier requirements, reviews issue discussions for status and next steps, cross-references related issues in other MCP SDK repos, and produces a BLUF markdown report. Use when asked to triage issues, audit SLA compliance, review open issues, or generate an issue report.

This skill should be used when the user asks to "create an MCP App", "add a UI to an MCP tool", "build an interactive MCP View", "scaffold an MCP App", or needs guidance on MCP Apps SDK patterns, UI-resource registration, MCP App lifecycle, or host integration. Provides comprehensive guidance for building MCP Apps with interactive UIs.

This skill should be used when the user asks to "add MCP App support to my web app", "turn my web app into a hybrid MCP App", "make my web page work as an MCP App too", "wrap my existing UI as an MCP App", "convert iframe embed to MCP App", "turn my SPA into an MCP App", or needs to add MCP App support to an existing web application while keeping it working standalone. Provides guidance for analyzing existing web apps and creating a hybrid web + MCP App with server-side tool and resource registration.

This skill should be used when the user asks to "add an app to my MCP server", "add UI to my MCP server", "add a view to my MCP tool", "enrich MCP tools with UI", "add interactive UI to existing server", "add MCP Apps to my server", or needs to add interactive UI capabilities to an existing MCP server that already has tools. Provides guidance for analyzing existing tools and adding MCP Apps UI resources.

This skill should be used when the user asks to "migrate from OpenAI Apps SDK", "convert OpenAI App to MCP", "port from window.openai", "migrate from skybridge", "convert openai/outputTemplate", or needs guidance on converting OpenAI Apps SDK applications to MCP Apps SDK. Provides step-by-step migration guidance with API mapping tables.

Use when reviewing a conformance PR that adds or changes scenario .ts files for a SEP — before approving, before requesting changes, or as a self-check before opening one.

Scaffold a sep-NNNN.yaml requirement-traceability file for the MCP conformance repo from a SEP PR's spec diff. Runs the new-sep CLI, then parses the modelcontextprotocol/modelcontextprotocol spec diff to populate `requirements[]` with the RFC 2119 sentences and proposed check IDs.

Comprehensive tier assessment for an MCP SDK repository against SEP-1730. Produces tier classification (1/2/3) with evidence table, gap list, and remediation guide. Works for any official MCP SDK (TypeScript, Python, Go, C#, Java, Kotlin, PHP, Swift, Rust, Ruby).

Research and draft a Specification Enhancement Proposal following the MCP SEP governance process

Search MCP PRs, issues, and discussions across the modelcontextprotocol GitHub org

Add KDoc documentation to Kotlin public API. Use whenever the user asks to document Kotlin code, add KDoc, generate API docs, mentions undocumented public declarations, or wants to improve existing documentation. Also trigger when the user says 'add docs', 'document this class/file/module', 'write KDoc', or asks about missing documentation in Kotlin code.

Fetch live MCP specification and docs from modelcontextprotocol.io. Training data may be outdated — default to using this skill when the query touches MCP protocol in any way. Trigger for: implementing or debugging MCP features (sampling, elicitation, completion, tools, resources, prompts, transports); SEPs or spec requirements; MCP transport behavior (SSE, Streamable HTTP, reconnection, retry); authorization/OAuth; conformance test failures; capability negotiation; message schemas. Skip only for pure Kotlin, build system, or refactoring tasks with zero MCP protocol dependency. When in doubt, trigger.