Lifecycle changedspecification/2025-03-26/basic/lifecycle

Nearest release: v2.1.284, published 4 hours before upstream edited the page. Shown because the two are within 24 hours of each other. Nothing here says the release caused the edit.

Upstream edited this page at 28 Sep 2026 21:57 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 28 Sep 2026 22:07 UTC.

Upstream edited 28 Sep 2026 21:57 UTC

Recorded here 28 Sep 2026 22:07 UTC

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First seen 26 Aug 2026 this site's first read of the page

Recorded edits2to this page, all time

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141141Key capabilities include:

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143| Category | Capability | Description |

144| -------- | -------------- | ----------------------------------------------------------------------------------------- |

145| Client | `roots` | Ability to provide filesystem [roots](/specification/2025-03-26/client/roots) |

146| Client | `sampling` | Support for LLM [sampling](/specification/2025-03-26/client/sampling) requests |

147| Client | `experimental` | Describes support for non-standard experimental features |

148| Server | `prompts` | Offers [prompt templates](/specification/2025-03-26/server/prompts) |

149| Server | `resources` | Provides readable [resources](/specification/2025-03-26/server/resources) |

150| Server | `tools` | Exposes callable [tools](/specification/2025-03-26/server/tools) |

151| Server | `logging` | Emits structured [log messages](/specification/2025-03-26/server/utilities/logging) |

152| Server | `completions` | Supports argument [autocompletion](/specification/2025-03-26/server/utilities/completion) |

153| Server | `experimental` | Describes support for non-standard experimental features |

143| Category | Capability | Description |

144| - | - | - |