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Implements tool annotations per MCP specification 2025-06-18, enabling servers to provide behavioral hints and metadata about tools. Changes: - Added ToolAnnotations interface extending Annotations with tool-specific fields - Updated Tool interface to include optional annotations field - Extended tool() method to accept and pass through annotations - Added comprehensive test coverage for all annotation fields - Documented annotations feature with examples in README and JSDoc Annotations include: - Behavioral hints: readOnlyHint, destructiveHint, idempotentHint, openWorldHint - Base fields: audience, priority, lastModified, title This allows clients to make informed decisions about tool usage, understand tool behavior, and identify potential risks. Closes: Investigation of tool annotations support
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brettimus
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just add changeset 👍
glad we support this now, it's useful for openai
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PR looks great 🙌 |
laulauland
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Implements tool annotations per MCP specification 2025-06-18, enabling servers to provide behavioral hints and metadata about tools.
Changes:
Annotations include:
This allows clients to make informed decisions about tool usage, understand tool behavior, and identify potential risks.
Closes #150