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The spec (apps.mdx) defines toolInfo.id as optional (id?: RequestId), but the TypeScript types and generated schemas had it as required. This allows hosts to pass just the tool definition without needing a request ID, which is useful when the tool name is the primary information needed by the widget.
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ochafik
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Jan 8, 2026
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Jan 9, 2026
Merge latest changes from main including: - Vue, Svelte, Preact, and Solid basic server examples (#141) - safeAreaInsets support (#202) - E2E test fixes (#206) - npm publishing for examples (#184) - ui.resourceUri optional (#210) - Method names as consts (#192) - toolInfo.id optional (#216) - PostMessageTransport security fixes (#207, #208) - Server-utils.ts refactoring
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Summary
Aligns the TypeScript types and generated Zod schemas with the specification.
Changes
The spec (apps.mdx line 444) defines
toolInfo.idas optional:However, the implementation had it as required. This PR fixes the mismatch.
Why this matters
This allows hosts to pass just the tool definition without needing a request ID, which is useful when the widget only needs to know which tool was called (e.g., for custom loading screens per tool type).