The Claude Code plugin bundle — its manifest, marketplace listing, install flow, and the components Claude Code auto-discovers

Comparison

The plugin is the packaging surface; the things it ships are separate features:

plugin mcp-server hooks
Role The installable bundle (manifest + components) One bundled component — the MCP tool server One bundled component — lifecycle hook scripts
Artifact plugin/ + plugin.json / marketplace.json python -m attune.mcp.server + .mcp.json hooks/hooks.json + scripts
Documented by This page mcp-server feature hooks feature

The plugin is the box; mcp-server and hooks are two of the things inside it. Install the box and Claude Code unpacks every component.