Charlie Marsh b8d365b18e Extend child commands with session and descriptor controls (#47604) ...

## What changed

- Add `ProcessMode::NewSession`, null stdin, and opt-in Linux parent-death termination to the shared child command API.
- Replace `DescriptorPolicy::StdioOnly` with `Explicit` and add `preserve_fds` to allow selected inheritable Unix descriptors alongside stdio. Preserve descriptor numbers without duplicating or closing the parent's descriptors, keeping POSIX record locks intact.
- Support session creation and preserved descriptors in the native macOS backend, with a compatible fallback for high descriptor numbers rejected by native file actions.

## Testing

Add regression coverage for process groups and sessions, descriptor preservation across native and executable-text launches, the last descriptor slot below the file limit, and retention of parent record locks.

GitOrigin-RevId: 29ecd859d3b673da6ae6412cc06a32fa10d11346

2026-09-23 17:59:47 +00:00

..

src

Extend child commands with session and descriptor controls (#47604)

2026-09-23 17:59:47 +00:00

tests

Restrict Unix local MCP servers to stdio descriptors (#47094)

2026-09-21 19:37:46 +00:00

BUILD.bazel

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

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

Cargo.toml

Preserve MCP request trace context across transport workers (#47212)

2026-09-22 06:47:07 +00:00