# Plugins and skills **Primary paths:** `src/plugins/`, `src/skills/`, `src/utils/plugins/`, `src/utils/skills/`, `src/tools/SkillTool/`, `src/services/plugins/` Bundled plugins ship under `plugins/bundled/`; `PluginInstallationManager` and CLI commands under `services/plugins/` support install/update scopes. Skills load from project and user directories; `skillChangeDetector` watches for changes. `SkillTool` exposes skill invocation to the model. Hooks and commands defined by plugins align with [Plugins](https://code.claude.com/docs/en/plugins) and [Skills](https://code.claude.com/docs/en/skills). **See also:** [Plugins reference](https://code.claude.com/docs/en/plugins-reference), [Discover plugins](https://code.claude.com/docs/en/discover-plugins).