jif d9e1c9cd55 Avoid blocking turns on optional MCP startup (#35742) ...

## Why

A pending optional MCP server can delay the first model request even when the
turn does not need that server.

## What changed

- Give optional MCP servers a shared one-second startup grace, then omit servers
  that are still pending from the captured tool catalog.
- Continue waiting when the turn explicitly requires a server through a plugin,
  skill dependency, or `mcp://` mention, and preserve this behavior for input
  received between sampling steps.
- Route direct resource requests to the live connection set when a pending
  server was omitted from the binding, while keeping all-server resource
  discovery non-blocking.

## Testing

- Cover the shared grace period and resource behavior for pending optional
  servers.
- Verify plugin, plugin-skill, and direct MCP mentions wait for startup.
- Verify an Apps-enabled turn proceeds without tools from an unrelated pending
  optional server.

GitOrigin-RevId: b5f895c5a5362fe73f7d33250367662d4a217e4d

2026-07-28 09:32:48 +00:00

..

src

Avoid blocking turns on optional MCP startup (#35742)

2026-07-28 09:32:48 +00:00

BUILD.bazel

Extract MCP into codex-mcp crate (#15919)

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

Cargo.toml

Initialize execution environments with the final HTTP policy (#34995)

2026-07-23 19:24:41 +00:00