jif 0ca439900e Cache tool catalogs for streamable HTTP MCP servers (#37970) ...

## Why

Subagents should be able to use known HTTP MCP tool definitions without opening a connection until a tool is actually called.

## What changed

- Add streamable HTTP configurations to the process-scoped MCP tool catalog cache when their authentication identity can be derived safely.
- Fingerprint transport settings, relevant environment variables, protocol mode, plugin status, and client capabilities so catalogs are reused only across equivalent connections.
- Keep OAuth and other dynamically resolved credential configurations out of the shared cache.

## Testing

- Add an integration test proving that a subagent receives cached HTTP tools without reinitializing the server, then starts its own connection when it calls one.

GitOrigin-RevId: bb2787e29e9b71993def31aafd1f0d8f1b728d26

2026-08-11 09:22:50 +00:00

..

src

Cache tool catalogs for streamable HTTP MCP servers (#37970)

2026-08-11 09:22:50 +00:00

BUILD.bazel

Extract MCP into codex-mcp crate (#15919)

2026-04-01 19:03:26 -07:00

Cargo.toml

Expose runtime activity in server diagnostics (#37486)

2026-08-07 18:38:24 +00:00