Anthony Tafoya cf0ed4c600 Acquire and cache opt-in executor capability inventories via V2 (#53736) ...

## What changed

- Add the disabled-by-default `executor_capability_discovery_v2` feature to acquire `capabilities/discoverV2` inventories from supporting remote executors using each selected environment's working directory and sandbox.
- Share snapshots with MCP and world-state contributors and skill providers without activating discovered plugins or publishing discovered skills to the model.
- Cache inventories by environment instance, executor session, working directory, and sandbox. Coalesce concurrent requests, refresh the cache at turn start, retry transient failures, and refresh MCP projections after recovery.
- Resolve the system skills root in the executor and pass it explicitly to capability location discovery.

## Testing

Add coverage for feature gating, unsupported executors, inert inventories, cache reuse and eviction, turn refreshes, failure recovery, executor replacement, and system skill locations.

GitOrigin-RevId: 1bdca28fa7f17622b27e2713ab3dcc0c13426889

2026-10-13 18:15:50 +00:00

..

src

Acquire and cache opt-in executor capability inventories via V2 (#53736)

2026-10-13 18:15:50 +00:00

BUILD.bazel

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

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

Cargo.toml

Carry shell invocation metadata and report executor PATH directories (#49360)

2026-09-29 20:40:21 +00:00