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mcp: fix error propagation to prevent session closing (#1118)

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Fixes #1117
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Guglielmo Colombo 2026-08-04 11:02:36 +02:00 • committed by GitHub
commit c4a4ce4543
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1 changed files with 182 additions and 25 deletions
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9
internal/docs/mcpgodebug.src.md
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@ -45,9 +45,12 @@ Options listed below were added and will be removed in the 1.9.0 version of the
requested method in STDIO transport is not found.
- `noprotocolerrorbody` added. If set to `1`, the streamable HTTP client will
not attempt to decode the JSON-RPC error body of a non-2xx HTTP response,
restoring the previous behavior. The default behavior was changed so that
the client always attempts to surface the underlying JSON-RPC error.
not attempt to decode the JSON-RPC error body of a non-2xx HTTP response,
and any non-transient error will permanently fail the connection, restoring
the previous behavior. The default behavior was changed so that the client
attempts to decode the JSON-RPC error body of a non-2xx response, surfaces
the underlying JSON-RPC error, and wraps it with `jsonrpc2.ErrRejected` so
that per-call rejections do not tear down the session.
- `nowrapinvalidparams` added. If set to `1`, the server will not wrap
params-decoding failures with `jsonrpc2.ErrInvalidParams`, so wire responses