rhan-oai 2dbe6bfa44 Cancel MCP tool requests when response futures are dropped (#56132) ...

## Why

Dropping a local tool-call future did not notify the MCP server that the request was cancelled, leaving remote work running.

## What changed

- Send a cancellation notification for the request when its response future is dropped, covering both ordinary tool calls and tool-input rounds.
- Preserve write order for stdio and in-process transports so cancellation cannot arrive before its tool request, without waiting for tool responses.

## Testing

Add regression tests for cancellation on drop, request-before-cancellation ordering under reversed send polling and exhausted task budgets, and continued use of the shared connection after cancellation.

GitOrigin-RevId: fab02d546fd82c601756117d9ecbf1017c28ac11

2026-10-22 09:57:51 +00:00

..

src

Cancel MCP tool requests when response futures are dropped (#56132)

2026-10-22 09:57:51 +00:00

tests

Propagate authentication header failures before sending requests (#55607)

2026-10-20 15:43:19 +00:00

BUILD.bazel

[3/4] Add executor-backed RMCP HTTP client (#18583)

2026-04-22 17:38:04 -07:00

Cargo.toml

Upgrade Windows bindings to windows-sys 0.61.2 (#50058)

2026-10-01 18:05:05 +00:00