# Execution Backlog ## Package A: Architecture Freeze - [x] runtime ADR - [x] storage ADR - [x] event stream ADR - [x] worker transport ADR - [x] policy evaluation ADR - [x] event taxonomy ADR - [x] model fallback ADR - [x] domain model - [x] state machines - [x] storage schema draft - [x] internal interfaces - [x] error model - [x] execution model ## Package B: Core Hardening - [x] graph scheduler service - [x] node runner abstraction - [ ] reviewer contract - [x] finalizer contract - [x] resume/cancel use cases - [x] idempotency policy - [x] retry policy matrix ## Package C: Persistence - [ ] SQLAlchemy models - [ ] repositories for PostgreSQL/SQLite - [ ] migrations - [ ] artifact metadata persistence - [ ] event store queries with pagination ## Package D: Integrations - [ ] model router providers - [ ] MCP transport adapter - [ ] worker WebSocket gateway - [ ] heartbeat monitor - [ ] capability-aware dispatch ## Package E: Delivery - [ ] typed worker registration schema - [ ] task event DTO normalization - [ ] confirmation cards - [ ] progress cards - [ ] artifact cards - [ ] error cards ## Package F: Validation - [ ] contract tests - [ ] scenario tests - [ ] smoke suite - [ ] static checks in CI