Skills changedextensions/skills/overview
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55The [ext-skills repository](https://github.com/modelcontextprotocol/ext-skills)
66contains the published specification for the official Skills extension
7(`io.modelcontextprotocol/skills`). [SEP-2640](/seps/2640-skills-extension.md) is Final.
7(`io.modelcontextprotocol/skills`). [SEP-2640](https://modelcontextprotocol.io/seps/2640-skills-extension.md) is Final.
88
9The [Skills Over MCP Working Group](/community/working-groups/skills-over-mcp.md)
9The [Skills Over MCP Working Group](https://modelcontextprotocol.io/community/working-groups/skills-over-mcp.md)
1010maintains the extension. SDK and host support is still being implemented;
11see the [client support matrix](/extensions/client-matrix.md) and
11see the [client support matrix](https://modelcontextprotocol.io/extensions/client-matrix.md) and
1212[implementations list](https://github.com/modelcontextprotocol/ext-skills/blob/main/docs/implementations.md)
1313for current coverage.
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4646Servers that support Skills **MUST** declare both the `resources` capability and
4747the `io.modelcontextprotocol/skills` extension in
48[`server/discover`](/specification/draft/server/discover):
48[`server/discover`](https://modelcontextprotocol.io/specification/draft/server/discover):
4949
5050```json theme={null}
5151{
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7272>
7373> These examples use protocol revision `2026-07-28` or later. For brevity, the
7474> request examples omit `_meta`. Every request **MUST** include the required
75> [request metadata](/specification/draft/basic/index.md#_meta).
75> [request metadata](https://modelcontextprotocol.io/specification/draft/basic/index.md#_meta).
7676
7777## Protocol Messages
7878
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7979### Listing Skills
8080
8181To discover available skills, clients send a `skills/list` request. This
82operation supports [pagination](/specification/draft/server/utilities/pagination.md)
83and [caching](/specification/draft/server/utilities/caching.md).
82operation supports [pagination](https://modelcontextprotocol.io/specification/draft/server/utilities/pagination.md)
83and [caching](https://modelcontextprotocol.io/specification/draft/server/utilities/caching.md).
8484
8585**Request:**
8686
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180180### Reading Skill Content
181181
182182To retrieve skill instructions or supporting files, clients send a
183[`resources/read`](/specification/draft/server/resources#reading-resources)
183[`resources/read`](https://modelcontextprotocol.io/specification/draft/server/resources#reading-resources)
184184request. This example retrieves the `SKILL.md` from the listing above.
185185
186186**Request:**
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428428
429429## Client Support
430430
431See the [client matrix](/extensions/client-matrix.md) for Skills support and links
431See the [client matrix](https://modelcontextprotocol.io/extensions/client-matrix.md) for Skills support and links
432432to implementation documentation.
433433
434434## Specification
435435
436436The full specification is in the [ext-skills repository](https://github.com/modelcontextprotocol/ext-skills/blob/main/specification/stable/skills.mdx).
437Development is coordinated by the [Skills Over MCP Working Group](/community/working-groups/skills-over-mcp.md).
437Development is coordinated by the [Skills Over MCP Working Group](https://modelcontextprotocol.io/community/working-groups/skills-over-mcp.md).
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