Architecture generation and autonomous task execution for coding agents. Interviews stakeholders (or surveys code), generates artifacts + ordered tasks.yaml in .archgen/ under verifier/plan-review/user gates, then executes tasks in waves via sub-agents, loading required skills (ui-skills for UI/design/frontend) first. Use when the user asks to design a system, generate architecture, plan a feature, add a feature to existing code, investigate recurring issues, or says "start work", "build the tasks", "add feature X", "roll back changes", "install MCP server", "fetch the design skill".
