codex

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T

jif 693082f3c4 Make MCP server contributions thread-scoped (#27670 )

## Why

`selectedCapabilityRoots` belongs to one thread, but MCP contributors
previously received only the global Codex config. That left no clean way
for a selected executor capability to contribute MCP servers to its own
thread.

## What this PR does

- Gives MCP contributors a small context containing the config and, for
a running thread, its frozen host-seeded inputs.
- Uses the same thread inputs during startup, status queries, refreshes,
and skill dependency checks.
- Keeps threadless MCP operations and the existing hosted Apps behavior
unchanged.
- Adds coverage showing that two threads resolve independent
registrations and that later lifecycle mutations do not change the
frozen MCP inputs.

This PR does not discover plugin manifests, add MCP servers, or launch
anything new. It only establishes the thread-scoped registration
boundary.

## Follow-ups

- Resolve selected executor plugin roots through their owning
environment filesystem.
- Convert their stdio MCP declarations into environment-bound
registrations and add an executor MCP end-to-end test.

## Verification

- `just fmt`
- `cargo check --tests -p codex-protocol -p codex-extension-api -p
codex-mcp-extension -p codex-core -p codex-app-server`

Tests and Clippy were not run.

693082f3c4 · 2026-06-12 11:20:34 +02:00

History

examples

Make context contributors async (#22491 )

2026-05-13 16:43:28 +02:00

src

Make MCP server contributions thread-scoped (#27670 )

2026-06-12 11:20:34 +02:00

tests

Remove async-trait from extension contributors (#27383 )

2026-06-10 14:31:09 +02:00

BUILD.bazel