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Add batched executor capability discovery (#33852)

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## Why

Selected capability roots can contribute plugins, MCP servers, connectors, and
skills. Discovering each contribution separately requires repeated access to the
executor filesystem.

## What changed

- Add the `capabilityRoots/discoverV1` exec-server RPC to scan selected roots and
  materialize recognized plugin manifests, configuration files, skill
  instructions, and skill metadata in one bounded request.
- Add the opt-in `executor_capability_discovery` feature, with a thread-scoped
  cache and per-step snapshot shared by MCP and skill discovery.
- Parse MCP, connector, and skill contributions from the materialized snapshot,
  including serving cached skill instructions without another filesystem read.

## Testing

- Cover discovery limits, manifest precedence, root-local failures, cache reuse,
  plugin contributions, and parity with the existing environment skill loader.

GitOrigin-RevId: f98fd2321cafb58c596db02da1f83c09d8eb375d
This commit is contained in:
Bryan Ashley
2026-07-17 15:45:48 +00:00
committed by copyberry
parent caa6e554d6
commit 08e30a2e4e
47 changed files with 1957 additions and 47 deletions
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codex-rs/utils/plugins/src/lib.rs
+1 -1
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@@ -7,7 +7,7 @@ pub mod mcp_connector;
pub mod mention_syntax;
pub mod plugin_namespace;
pub use plugin_namespace::DISCOVERABLE_PLUGIN_MANIFEST_PATHS;
pub use codex_exec_server_protocol::DISCOVERABLE_PLUGIN_MANIFEST_PATHS;
pub use plugin_namespace::find_plugin_manifest_path;
pub use plugin_namespace::plugin_namespace_for_root_uri;
pub use plugin_namespace::plugin_namespace_for_skill_path;
codex-rs/utils/plugins/src/plugin_namespace.rs
+1 -7
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@@ -1,18 +1,12 @@
//! Resolve plugin namespace from skill file paths by walking ancestors for `plugin.json`.
use codex_exec_server::ExecutorFileSystem;
use codex_exec_server_protocol::DISCOVERABLE_PLUGIN_MANIFEST_PATHS;
use codex_utils_absolute_path::AbsolutePathBuf;
use codex_utils_path_uri::PathUri;
use std::path::Path;
use std::path::PathBuf;
/// Ordered plugin manifest paths recognized beneath a plugin root.
pub const DISCOVERABLE_PLUGIN_MANIFEST_PATHS: &[&str] = &[
".codex-plugin/plugin.json",
".claude-plugin/plugin.json",
".cursor-plugin/plugin.json",
];
pub fn find_plugin_manifest_path(plugin_root: &Path) -> Option<PathBuf> {
DISCOVERABLE_PLUGIN_MANIFEST_PATHS
.iter()