Junie/Extension
- Junie's installable bundle. The documented components are agent skills, MCP servers, Junie/Subagents, custom slash commands, and guidelines. Hooks are not among them.
- Installed from Git, a local path, or a direct marketplace URL, at project or user scope.
- Unusually interoperable at the catalog layer: Junie reads its native
.junie-extension/marketplace.json or the Claude format at .claude-plugin/marketplace.json, so any Claude-compatible marketplace can be connected alongside Junie's own. See Claude/Code/Plugin/Marketplace.