jif 5decb399ae Respect filesystem permissions during capability discovery (#36124) ...

## Why

Executor capability discovery can traverse plugin and skill roots, including
symlinks. Under restricted filesystem permissions, discovery must not expose
files outside the permitted paths.

## What changed

- Pass each environment's filesystem sandbox context through capability root
  discovery and apply it to metadata, directory walks, and file reads.
- Enable discovery for restricted sessions so permitted executor skills remain
  available while inaccessible roots and symlink targets are omitted.
- Key discovery caches by sandbox context and reject sandboxed discovery on
  executors that do not advertise support for it.
- Split requests with more than 128 roots into supported-size batches.

## Testing

- Cover permitted and denied external symlink targets.
- Verify restricted skill listing excludes inaccessible skills.
- Verify cache separation across permission contexts and discovery of 129 roots.

GitOrigin-RevId: 44d16468ca003403bdb8b71a04ae8c9ff94ed494

2026-07-30 10:01:06 +00:00

..

src

Respect filesystem permissions during capability discovery (#36124)

2026-07-30 10:01:06 +00:00

BUILD.bazel

protocol: separate app and exec RPC ownership (#29714)

2026-06-23 22:37:31 +00:00

Cargo.toml

Preserve JSON number precision in exec-server RPC messages (#33031)

2026-07-14 10:26:52 +00:00