Plan Review Architecture

Review architecture after scope is agreed.

Evaluate

• Component boundaries and ownership.
• Dependency graph and coupling.
• Data flow, state transitions, and side effects.
• API and integration contracts.
• Security and privacy boundaries.
• Rollout, rollback, migrations, and partial deployment states.
• Observability: logs, metrics, traces, dashboards, and alerting.
• One realistic production failure scenario for each new codepath or integration.

Diagrams

Require ASCII diagrams for non-trivial: