Maja Wichrowska 119a547a31 Prevent idle Windows MCP pipes from blocking unrelated I/O (#59726) ...

## Why

Idle reads from local MCP servers on Windows can occupy Tokio's blocking threads and delay unrelated filesystem operations.

## What changed

Use IOCP-backed named pipes for local MCP server stdin, stdout, and stderr on Windows. Connect child endpoints before launch, restrict pipe access to the owner and SYSTEM, and reject remote clients. Preserve the shared legacy and modern protocol framing.

## Testing

Add Windows regression tests to verify that idle MCP reads leave blocking I/O available in both protocol modes and that child output handles support querying the pipe mode.

GitOrigin-RevId: ca39b940a54427a2cd7bab5291011b0b09143b3f

2026-11-05 19:46:31 +00:00

..

absolute-path

Support Windows registry overrides for requirements.toml (#55456)

2026-10-20 04:49:25 +00:00

approval-presets

tui: pass active permission profiles through app commands (#22891)

2026-05-15 22:42:35 +00:00

audio

Use measured durations to budget uploaded audio (#59268)

2026-11-04 00:19:12 +00:00

cache

Consolidate Rust unit tests under dedicated test modules (#56247)

2026-10-22 19:36:47 +00:00

cargo-bin

Normalize formatting in docs, web assets, and sample scripts (#52256)

2026-10-08 20:11:43 +00:00

cli

Add a standalone codex-exec-server executable (#57589)

2026-10-27 23:13:53 +00:00

critical-path

Track automatic review overhead in critical-path durations (#59251)

2026-11-03 23:01:57 +00:00

elapsed

Disable empty Cargo test targets (#21584)

2026-05-07 15:44:17 -07:00

fuzzy-match

Fix fuzzy match scoring within Unicode lowercase expansions (#45475)

2026-09-14 17:36:11 +00:00

git-discovery

Bound Git root discovery for metadata enrichment (#42132)

2026-09-01 20:41:32 +00:00

head-tail-buffer

Extract the head-tail buffer into a utility crate (#56535)

2026-10-23 17:35:25 +00:00

home-dir

Disable empty Cargo test targets (#21584)

2026-05-07 15:44:17 -07:00

image

Reduce dependency coupling in shared configuration crates (#47713)

2026-09-24 01:50:36 +00:00

json-to-toml

Disable empty Cargo test targets (#21584)

2026-05-07 15:44:17 -07:00

model-facing-id

Add a token-efficient model-facing ID generator (#59540)

2026-11-05 01:34:00 +00:00

oss

Route Ollama through the shared HTTP client (#36078)

2026-07-30 04:26:36 +00:00

output-truncation

Add bounded Code Mode output collection and rendering (#57848)

2026-10-28 22:31:05 +00:00

path-uri

Pin the Rust toolchain to 1.95.0 (#57373)

2026-10-27 05:52:01 +00:00

path-utils

Clean up failed and abandoned marketplace staging directories (#55689)

2026-10-20 22:25:54 +00:00

plugins

Route skill discovery and loading through EnvironmentAccess (#46293)

2026-09-17 19:52:03 +00:00

process

Suppress Windows console windows for background subprocesses (#49164)

2026-09-29 04:38:37 +00:00

pty

Prevent idle Windows MCP pipes from blocking unrelated I/O (#59726)

2026-11-05 19:46:31 +00:00

readiness

[codex] Remove async_trait from first-party code (#27475)

2026-06-11 18:16:39 -07:00

redacted-string

Redact OTEL exporter headers in app-server config responses (#57654)

2026-10-28 05:46:04 +00:00

rustls-provider

Use aws-lc-rs for rustls crypto provider (#27706)

2026-06-15 11:32:13 -07:00

sandbox-summary

Remove the legacy sandbox policy summary helper (#59677)

2026-11-05 15:17:48 +00:00

sleep-inhibitor

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

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

stream-parser

Pin the Rust toolchain to 1.95.0 (#57373)

2026-10-27 05:52:01 +00:00

string

Preserve output boundaries through token truncation (#57584)

2026-10-27 22:56:23 +00:00

template

Disable empty Cargo test targets (#21584)

2026-05-07 15:44:17 -07:00