MOPC-App/docs/round-redesign-architecture-docs/mixed-round-design-implementation-docs/phase-00-contract-freeze/overview.md

Phase 00 Overview: Contract Freeze

Objective

Lock all cross-phase contracts before implementation so the program executes with stable boundaries and no semantic drift.

In Scope

• decision locking
• API/type contract baseline
• authorization baseline
• gate and evidence baseline
• initial risk baseline

Out of Scope

• schema implementation
• runtime implementation
• UI implementation

Inputs

• shared/program-charter.md
• shared/decision-log.md
• shared/domain-model.md
• shared/api-contracts.md
• shared/authz-matrix.md
• shared/test-matrix.md

Exit Criteria

1. Decision log marked locked with no unresolved critical decision.
2. API/type contracts accepted by backend and frontend owners.
3. Authz matrix accepted by security owner.
4. Risk register initialized with owners.
5. Phase 00 acceptance gates complete with evidence.