SEP-2640: Skills Extension changedseps/2640-skills-extension
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Upstream edited this page at 18 Oct 2026 02:02 UTC, give or take a minute or two: the time comes from Anthropic’s own sitemap rather than from a commit. This site recorded the change at 22 Oct 2026 20:37 UTC.
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1111> This SEP has reached Final status and is preserved as a historical record of
1212> the design as accepted. Changes made to the protocol after finalization are
1313> not reflected here. Refer to the [current
14> specification](/specification/latest) and its changelog for authoritative
14> specification](/specification/latest.md) and its changelog for authoritative
1515> requirements.
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1717| Field | Value |
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650650* [SEP-2133][]: Extensions
651651* [SEP-2549][]: TTL for list results
652652* [SEP-2076][]: Agent Skills as first-class primitive (alternative approach)
653* [Skills Over MCP Working Group charter](https://modelcontextprotocol.io/community/skills-over-mcp/charter)
653* [Skills Over MCP Working Group charter](https://modelcontextprotocol.io/community/skills-over-mcp/charter.md)
654654* [Decision Log](https://github.com/modelcontextprotocol/ext-skills/blob/main/docs/decisions.md): Working Group decisions and rationale
655655* [Experimental Findings](https://github.com/modelcontextprotocol/ext-skills/blob/main/docs/archive/experimental-findings.md): results from implementations (WIP)
656656* [Related Work](https://github.com/modelcontextprotocol/ext-skills/blob/main/docs/archive/related-work.md): survey of existing skill-serving implementations
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