Mcp Spec

MCP Spec Plugin for Claude

Skills for researching and contributing to the Model Context Protocol specification.

Installation

Claude Code

/plugin marketplace add modelcontextprotocol/modelcontextprotocol

Claude Cowork

Navigate to Customize >> Browse Plugins >> Personal >> Plus Button >> Add marketplace from GitHub and add modelcontextprotocol/modelcontextprotocol

Available Skills

/search-mcp-github <topic>

Search across MCP GitHub discussions, issues, and pull requests to find relevant information about a topic.

Sources searched:

• Org-level Discussions
• Spec-level Discussions
• Spec-level Issues
• Spec-level Pull Requests

Example:

/search-mcp-github Tool Annotations

Note: The skill searches both open AND closed issues/PRs, which is important for understanding past decisions and historical context.

/draft-sep <idea>

Research and draft a Specification Enhancement Proposal that conforms to the SEP governance process. Gates on whether the idea is SEP-worthy, interviews the author, checks existing spec coverage and prior art, then fills the template's required and optional sections and writes seps/0000-{slug}.md. Optionally opens a draft PR, backfills the SEP number, and runs npm run generate:seps and npm run format:docs so CI stays green.

Prerequisite: Run from a local clone of this repository or your fork of it (the skill reads seps/TEMPLATE.md and writes into seps/).

Example:

/draft-sep add websocket transport

Note: The skill will ask clarifying questions (SEP type, breaking-change status, prototype, prior discussion, sponsor, security) before writing anything. The SEP guidelines advise discussing an idea in Discord or a Working Group before drafting — the skill will flag if that hasn't happened.