The phase-based machinery (0–7) behind the `aw` dispatcher — task intake through tested PR delivery in an isolated Git worktree, with optional companion skills for planning, quality gates, TDD, UX, code quality, docs, and CI verification. Companions never block; a skipped one is reported, never silent. NOT the entry point and not auto-triggered: a natural-language request to do work autonomously, end-to-end, in isolation, or in a worktree belongs to the `aw` skill, which detects the task tier and routes. Reach for this skill only to read or run the phase machinery directly, bypassing tier detection — invoke with /autonomous-workflow.