Phase	Name	Gate?	What happens
0	Orient	—	Read memory, load skills, route model tier
1	Plan	✋ Gate 1	Challenge premises, create plan, human approval
2	Test	—	Failing tests first (TDD via --tdd)
3	Build	—	Implement per plan; until tests pass in TDD mode
4	Review	✋ Gate 2	5-dimension audit, human approval