Codex 5.3 Refactor Note: Canonical refactor plan: docs/CODEX-5.3-REFACTOR-PLAN.md. This document is retained for historical and implementation context during the refactor.

W10 Files Manifest

📚 Documentation (1,228 lines total)

Entry Point

• W10-SUMMARY.md (269 lines) - START HERE Complete overview, deliverables, test coverage, acceptance criteria

Comprehensive Specification

• W10-IMPLEMENTATION.md (483 lines)
  • Sections A-H (summary, routes, model, UI, API, RBAC, audit, tests)
  • 13 detailed manual test cases with expected results
  • Full API logic flows and code explanations

Quick References

• W10-QUICK-START.md (177 lines) 5-minute quick start, decision flow, access control, troubleshooting

• W10-INDEX.md (172 lines) Navigation guide, test matrix, API reference, implementation details

• W10-DELIVERY.md (127 lines) Delivery summary, features checklist, quick test guide

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💻 Code (584 lines total)

API Endpoints

• src/app/api/candidates/[id]/decision/route.ts (215 lines) - NEW

  GET /api/candidates/[id]/decision
    - Auth: HR/Manager/SMO/Admin
    - Returns: { candidateId, decision? }
    - 404 if candidate not found
  
  POST /api/candidates/[id]/decision
    - Auth: SMO/Admin only
    - Validates: TO_SMO status, notes required for REJECTED/KIV
    - Immutable: 409 if already exists
    - Transactional: Decision + Candidate status update
    - Logs: DECISION_FINALIZED + CANDIDATE_STATUS_UPDATED
    - Emits: DecisionUpdated domain event
  

UI Components

• src/app/(app)/candidates/[id]/_tabs/SmoDecisionTab.tsx (330 lines) - NEW

  Editable Mode (TO_SMO + SMO/Admin):
    - Decision radio buttons (APPROVED/REJECTED/KIV)
    - Notes textarea (required for REJECT/KIV)
    - Validation display
    - Finalize button
    - Internal decision warning
  
  Read-Only History (decision exists):
    - Success banner
    - Decision card (status, notes, decidedBy, decidedAt)
    - Metadata display
  
  Not Eligible (status != TO_SMO):
    - Warning message
    - Status display
  

• src/app/(app)/candidates/[id]/page.tsx (UPDATED - 2 changes)

  Added:
    - SmoDecisionTab import
    - "SMO Decision" tab button
    - Tab routing logic
    - Status badge colors: TO_SMO (purple), APPROVED (green), 
      REJECTED (red), KIV (orange)
  

Libraries

• src/lib/events/emitter.ts (39 lines) - NEW

  emitDomainEvent(eventType, aggregateId, payload)
    - Event types: DecisionUpdated
    - Logs to console (stub)
    - Ready for W16 outbox implementation
  

• src/lib/validation/schemas.ts (UPDATED - 22 lines added)

  Added:
    - decisionSchema
    - Zod validation: enum(APPROVED|REJECTED|KIV)
    - Conditional refinement: notes required for REJECTED/KIV
    - Export: DecisionInput type
  

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🗄️ Database (NO CHANGES)

prisma/schema.prisma - No migration required

Already exists:

• Decision model (id, candidateId, decision, notes, decidedByUserId, decidedAt, createdAt)
• CandidateStatus enum (includes APPROVED, REJECTED, KIV)
• DecisionType enum (APPROVED, REJECTED, KIV)
• AuditEventType enum (includes DECISION_FINALIZED, CANDIDATE_STATUS_UPDATED)

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📊 File Statistics

Documentation

File	Lines	Size	Purpose
W10-SUMMARY.md	269	8.9 KB	Complete overview
W10-IMPLEMENTATION.md	483	13 KB	Detailed specification
W10-QUICK-START.md	177	4.4 KB	Quick reference
W10-INDEX.md	172	4.5 KB	Navigation guide
W10-DELIVERY.md	127	4.5 KB	Delivery summary
Total	1,228	39.3 KB	5 documents

Code

File	Lines	Size	Purpose
decision/route.ts	215	5.7 KB	API endpoints
SmoDecisionTab.tsx	330	9.8 KB	UI component
emitter.ts	39	1.2 KB	Event stub
page.tsx	2	-	Updated
schemas.ts	22	-	Updated
Total	608	16.7 KB	5 files

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🎯 Quick Navigation

For Product Manager

→ Read W10-SUMMARY.md or W10-DELIVERY.md

For Developer

→ Read W10-IMPLEMENTATION.md or W10-QUICK-START.md

For QA / Tester

→ Read W10-IMPLEMENTATION.md Section H (13 test cases)

For API Integration

→ Read W10-INDEX.md API Reference

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✅ Checklist

• API endpoints implemented (GET/POST)
• UI component created (SmoDecisionTab)
• Validation schemas defined (decisionSchema)
• Audit logging integrated (DECISION_FINALIZED, CANDIDATE_STATUS_UPDATED)
• Domain event emitted (DecisionUpdated stub)
• RBAC enforced (SMO/Admin only)
• Error handling (400, 403, 404, 409)
• Immutability enforced (409 on retry)
• Transaction safety (atomic updates)
• Documentation complete (5 files, 1,228 lines)
• Test cases defined (13 scenarios)
• No database migration needed

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🚀 Ready for Testing

All files created, documented, and ready for deployment.

Follow W10-IMPLEMENTATION.md Test Checklist to validate implementation.