Allow CallToolResult to be returned directly to support _meta field for OpenAI Apps#1459

Merged

maxisbey merged 5 commits intomodelcontextprotocol:mainfrom

BrandonShar:allow-tool-call-result-to-be-returned-directly

Oct 21, 2025

Commits on Oct 9, 2025

Allow CallToolResult to be returned directly from tool calls
BrandonShar
committed
Simplify with early return because output schemas won't work with a CallToolResult return type
BrandonShar
committed
more useful comments
BrandonShar
committed

Commits on Oct 10, 2025

we can use Annotated to still support output schemas
BrandonShar
committed

Commits on Oct 21, 2025

feat: reject CallToolResult in Union/Optional types
maxisbey
committed