# Phase 0 Execution Checklist

**Phase**: Solution Skeleton & Delivery Guardrails
**Started**: 2026-03-16
**Completed**: in progress

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## Work Package Status

| WP | Description | Status | Date | Deferred Criteria | Notes |
|----|-------------|--------|------|-------------------|-------|
| WP-0.1 | Solution Structure | [ ] Pending | | | |
| WP-0.2 | Commons Namespace & Folder Skeleton | [ ] Pending | | | |
| WP-0.3 | Commons Shared Data Types | [ ] Pending | | | |
| WP-0.4 | Commons Domain Entity POCOs | [ ] Pending | | | |
| WP-0.5 | Commons Repository Interfaces | [ ] Pending | | | |
| WP-0.6 | Commons Cross-Cutting Service Interfaces | [ ] Pending | | | |
| WP-0.7 | Commons Message Contracts | [ ] Pending | | | |
| WP-0.8 | Commons Protocol Abstraction | [ ] Pending | | | |
| WP-0.9 | Commons Architectural Constraint Enforcement | [ ] Pending | | | |
| WP-0.10 | Host Skeleton with Role-Based Startup | [ ] Pending | | | |
| WP-0.11 | Per-Component Options Classes | [ ] Pending | | | |
| WP-0.12 | Local Dev Topology & Sample Config | [ ] Pending | | | |

## Mid-Phase Compliance Checks

| Check | Date | Result | Notes |
|-------|------|--------|-------|
| Build (zero warnings) | | [ ] Pass / [ ] Fail | |
| All tests pass | | [ ] Pass / [ ] Fail | |
| Deferred criteria review | | [ ] Pass / [ ] N/A | |
| Traceability spot-check (3 random) | | [ ] Pass / [ ] Fail | |

## Verification Gate

| # | Gate Criterion | Pass | Notes |
|---|---------------|------|-------|
| 1 | `dotnet build ScadaLink.slnx` zero errors, zero warnings | [ ] | |
| 2 | `dotnet test ScadaLink.slnx` all tests pass | [ ] | |
| 3 | Host boots in central role from appsettings.Central.json | [ ] | |
| 4 | Host boots in site role from appsettings.Site.json | [ ] | |
| 5 | Site-role Host does not open any network port | [ ] | |
| 6 | All 17 component projects compile with correct Commons references | [ ] | |
| 7 | Commons has zero non-core-NET package references | [ ] | |
| 8 | All architectural constraint tests pass (no EF, Akka, ASP.NET in Commons) | [ ] | |
| 9 | All entity POCOs use DateTimeOffset for timestamp fields | [ ] | |
| 10 | All message contracts are record types | [ ] | |
| 11 | Every Requirements/Design Constraints checklist item maps to a WP | [ ] | |

## Requirements Checklist Verification

Verified when all WPs complete — see phase plan Section 3 for full list.

| Req Group | Count | Implemented | Tested |
|-----------|-------|-------------|--------|
| 13.1 Timestamps | 3 | [ ] | [ ] |
| REQ-COM-1 Shared Types | 12 | [ ] | [ ] |
| REQ-COM-2 Protocol Abstraction | 3 | [ ] | [ ] |
| REQ-COM-3 Entity POCOs | 13 | [ ] | [ ] |
| REQ-COM-4 Repository Interfaces | 10 | [ ] | [ ] |
| REQ-COM-4a Cross-Cutting Interfaces | 2 | [ ] | [ ] |
| REQ-COM-5 Message Contracts | 10 | [ ] | [ ] |
| REQ-COM-5a Versioning | 4 | [ ] | [ ] |
| REQ-COM-5b Namespace Convention | 12 | [ ] | [ ] |
| REQ-COM-6 No Business Logic | 3 | [ ] | [ ] |
| REQ-COM-7 Minimal Dependencies | 5 | [ ] | [ ] |
| REQ-HOST-1 Single Binary | 3 | [ ] | [ ] |
| REQ-HOST-2 Role Registration | 6 | [ ] | [ ] |
| REQ-HOST-3 Config Binding | 6 | [ ] | [ ] |
| REQ-HOST-7 ASP.NET vs Generic Host | 3 | [ ] | [ ] |
| REQ-HOST-10 Extension Methods | 5 | [ ] | [ ] |

## Design Constraints Checklist Verification

| ID | Constraint | Respected | Notes |
|----|-----------|-----------|-------|
| KDD-data-6 | All timestamps UTC | [ ] | |
| KDD-code-1 | POCOs in Commons, EF in ConfigDB | [ ] | |
| KDD-code-2 | Repo interfaces in Commons | [ ] | |
| KDD-code-3 | Commons namespace hierarchy | [ ] | |
| KDD-code-4 | Additive-only message evolution | [ ] | |
| KDD-code-5 | Options pattern config binding | [ ] | |
| KDD-code-6 | Options classes in component projects | [ ] | |
| CD-Commons-1 | All components reference Commons | [ ] | |
| CD-Commons-2 | No EF annotations on POCOs | [ ] | |
| CD-Commons-3 | Interface contract for ConfigDB | [ ] | |
| CD-Host-1 | Host references all components | [ ] | |
| CD-Host-2 | ConfigDB in Host AddXxx chain | [ ] | |
| CD-Host-3 | Component registration matrix | [ ] | |

## Post-Phase Review

| Review Step | Date | Result | Findings |
|------------|------|--------|----------|
| Codex: Implementation vs. Plan | | [ ] Pass / [ ] Pass with corrections / [ ] Skipped | |
| Codex: Code quality | | [ ] Pass / [ ] Pass with corrections / [ ] Skipped | |

## Questions Logged During Execution

| # | Question | Logged to questions.md | Resolution |
|---|----------|----------------------|------------|
| | | | |

## Summary

- **Total WPs**: 12
- **Tests written**: TBD
- **Tests passing**: TBD
- **Requirements verified**: 0/100
- **Design constraints verified**: 0/13
- **Questions logged**: 0
- **Codex review**: pending