Bundled plugins
No plugins are currently bundled and shipped with Claude Code. The initBuiltinPlugins() scaffolding in plugins/bundled/index.ts is in place for future migration of bundled skills that should become user-toggleable plugins. All current bundled features (e.g., /simplify, /debug, /batch) remain as bundled skills under skills/bundled/.
Plugin registry
Section titled “Plugin registry”The BuiltinPluginDefinition type (in types/plugin.ts) defines:
name(string): plugin identifierdescription(string): shown in UIversion(optional): semantic versionskills(optional): array ofBundledSkillDefinitionobjectshooks(optional): hook configurationsmcpServers(optional): MCP server definitionsisAvailable()(optional): function to check system compatibilitydefaultEnabled(optional): default toggle state (defaults totrue)