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ext-skills

MCP Extension for Skills discovery and distribution through MCP primitives. Maintained by the Skills Over MCP Working Group.

Links

Repository

README

From the repo.

Skills Over MCP Working Group

This repository is the home of the official Model Context Protocol Skills extension (io.modelcontextprotocol/skills), based on SEP-2640, and of the Skills Over MCP Working Group's working documents.

Specification

ResourceWhere
Specification (source of truth)specification/stable/skills.mdx — the extension spec, written against base protocol revision 2026-07-28
Official documentationmodelcontextprotocol.io/extensions/skills/overview — condensed overview with examples and message flow
SEP-2640: Skills Extensionmodelcontextprotocol.io/seps/2640-skills-extension — the accepted SEP (Status: Final; PR #2640 merged 2026-09-13)
Client supportExtension client matrix — which clients implement the extension

The stable specification is a released snapshot and is not edited in place. Changes are proposed as dated entries in the decision log (see AGENTS.md for the process) and, once accepted, land in a draft revision of the specification that ships as a new release.

ℹ️ The docs/ folder holds the decision log, the design rationale, and the implementations list. Earlier design documents, findings, and trackers are frozen in docs/archive/. None of it is part of the specification.

Charter: modelcontextprotocol.io/community/working-groups/skills-over-mcp — mission, scope, membership, active work items, and success criteria. Project board: Skills Over MCP WG Meeting notes: Skills Over MCP WG discussions Discord: #skills-over-mcp-wg Open work: Pull requests and issues — proposals, decisions, implementations, and other in-flight contributions welcome.

Repository Contents

DocumentDescription
SpecificationThe Skills extension specification (io.modelcontextprotocol/skills) — source of truth
Decision LogADR-lite record of the group's decisions, and the vehicle for proposing changes to the specification
RationaleDesign rationale for the Resources-based extension
ImplementationsServers, SDKs, and hosts that serve or consume skills over MCP
ArchivePre-release design documents, findings, and trackers, frozen when SEP-2640 was marked Final

For the case for serving skills over MCP, see the official overview and the Motivation section of SEP-2640.

Contributing

See CONTRIBUTING.md for how to participate.

Collected info

  • ★ 658 stars
  • ⎇ 60 forks
  • Language: MDX
  • Source updated: 9/18/2026

Config for your environment

Replace {MCP_ENDPOINT_URL} with this MCP’s endpoint URL (from its repo or docs above). No API key — you connect directly.

Tool

OS

Config file: ~/.cursor/mcp.json

{
  "mcpServers": {
    "mcp-server": {
      "url": "{MCP_ENDPOINT_URL}"
    }
  }
}

Paste into mcpServers in the config file. Restart Cursor after saving.

If this MCP is also published on mcpchannel.ai, you can subscribe from Browse and use the gateway config there instead.