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

Notes & tips

• Add the marketplace first. install needs a registered marketplace to resolve attune-ai@attune-ai against.
• Mind the two names. Marketplace attune-ai-plugin, plugin attune-ai. The install string repeats the plugin name on purpose.
• The folders are the contract. Claude Code discovers components by fixed folder names (commands/, skills/, agents/, hooks/, help/) — that layout is the plugin's interface.
• Go to the component's feature to debug it. MCP tools → mcp-server; hook behavior → hooks. This page is the bundle.