mcp: move to 2025-06-18 schema#8
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findleyr
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Jun 24, 2025
Add types and fields for the latest MCP schema. The main challenge here was dealing with the presence of _meta fields on many types, like Tool, Prompt and Resource. - Distinguish between the _meta field of a request's params, which includes a progress token, from the _meta field on other types, which is simply a map. - Redefine GetMeta to return a pointer to the map. We wanted to avoid that, but I don't see a clean way to do so. An alternative would be to have GetMeta return a map, and SetMeta to set it. - Provide GetProgressToken for requests only (not notifications or other types). - Still to do: deal with the meta and annotation fields of ContentBlock, which are currently duplicated for Resource and ResourceContents.
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Add types and fields for the latest MCP schema.
The main challenge here was dealing with the presence of _meta fields on many types, like Tool, Prompt and Resource.
Distinguish between the _meta field of a request's params, which includes a progress token, from the _meta field on other types, which is simply a map.
Redefine GetMeta to return a pointer to the map. We wanted to avoid that, but I don't see a clean way to do so. An alternative would be to have GetMeta return a map, and SetMeta to set it.
Provide GetProgressToken for requests only (not notifications or other types).
Still to do: deal with the meta and annotation fields of ContentBlock, which are currently duplicated for Resource and ResourceContents.