implement

<tool_restrictions>

Use the available user-question mechanism for decisions; unattended, the documented fallbacks in each step govern. EnterPlanMode and ExitPlanMode are banned because Arc owns its planning and execution process.

</tool_restrictions>

<arc_runtime> Requires the full Arc bundle. Arc-owned paths (agents/, references/, disciplines/, templates/, scripts/, rules/, skills/) resolve from the plugin root — the directory containing agents/ and skills/. Everything else is the user's repository. </arc_runtime>

<required_reading> Read before execution: