Documentation Inventory & Gap Analysis - CODITECT License Platform
Date: 2025-11-30 Status: Comprehensive Inventory Created Purpose: Complete mapping of required documentation, diagrams, and FastAPI→Django conversions Next Action: Update project-plan.md and tasklist-with-checkboxes.md
Executive Summary
Critical Findings:
- 50+ files contain FastAPI references requiring conversion to Django
- Missing C3/C4 diagrams - Critical architecture documentation gaps
- Incomplete sequence diagram batch 3 - Only 2 of 5 diagrams created
- Architecture inconsistency - ADR-007 specifies Django, all docs use FastAPI
Conversion Scope:
- 14 Sequence Diagrams - Complete rewrite of code examples
- 2 ADRs - ADR-019, ADR-020
- 4 Architecture Documents - C2, workflow docs
- 10 Project Docs - CLAUDE.md, README.md, guides
- ~50 total files requiring updates
Estimated Effort: 12-15 hours (3-4 days at 4 hours/day)
1. Required Architecture Diagrams (C4 Model)
✅ Completed Diagrams
| Diagram | Status | Location | Size |
|---|---|---|---|
| C1: System Context | ✅ Complete | docs/diagrams/architecture/c1-system-context.md | 12KB |
| C2: Container Diagram | ✅ Complete | docs/diagrams/architecture/c2-container-diagram.md | 28KB |
❌ Missing Diagrams
C3: Component Diagrams (Priority: P0 - Critical)
Required: 8 diagrams
| # | Diagram | Components | Priority | Effort |
|---|---|---|---|---|
| C3-01 | Django Backend Components | Views, Models, Serializers, Middleware, Services, Utils | P0 | 3h |
| C3-02 | PostgreSQL Components | Tables, RLS Policies, Functions, Triggers, Indexes | P0 | 2h |
| C3-03 | Redis Components | Lua Scripts, Session Keys, Rate Limit Buckets | P0 | 2h |
| C3-04 | GKE Cluster Components | Pods, Services, Ingress, ConfigMaps, Secrets | P0 | 2h |
| C3-05 | Identity Platform Components | OAuth2 Flow, Token Service, User Management | P1 | 2h |
| C3-06 | Cloud KMS Components | Key Rings, Crypto Keys, IAM Policies | P1 | 1.5h |
| C3-07 | Monitoring Components | Prometheus, Grafana, Cloud Logging, Alerts | P1 | 2h |
| C3-08 | CI/CD Components | GitHub Actions, Cloud Build, Artifact Registry | P2 | 1.5h |
Total C3 Effort: 16 hours
C4: Code Diagrams (Priority: P1 - High)
Required: 5 diagrams
| # | Diagram | Focus | Priority | Effort |
|---|---|---|---|---|
| C4-01 | TenantModel Class Hierarchy | Inheritance, Methods, Relationships | P1 | 1.5h |
| C4-02 | License Acquisition Flow | Atomic Lua Script, Django View, RLS | P1 | 2h |
| C4-03 | JWT Authentication Flow | Middleware Chain, Token Validation | P1 | 1.5h |
| C4-04 | Multi-Tenant Context Manager | Thread-local Context, PostgreSQL Session Vars | P1 | 1.5h |
| C4-05 | Heartbeat TTL Management | Redis TTL, Django Celery Task, Cleanup | P2 | 1.5h |
Total C4 Effort: 8 hours
Supporting Diagrams (Priority: P0-P1)
Required: 4 diagrams
| # | Diagram | Type | Priority | Effort |
|---|---|---|---|---|
| SUP-01 | Entity-Relationship Diagram (ERD) | Database schema with relationships | P0 | 3h |
| SUP-02 | GKE Deployment Architecture | Nodes, Pods, Services, Ingress, Network | P0 | 2.5h |
| SUP-03 | VPC Network Architecture | Subnets, Firewall Rules, Cloud NAT, Peering | P1 | 2h |
| SUP-04 | Multi-Tenant Data Flow | Request → Middleware → RLS → Response | P1 | 2h |
Total Supporting Effort: 9.5 hours
TOTAL DIAGRAM EFFORT: 33.5 hours (~8-9 days at 4 hours/day)
2. Sequence Diagrams Status
✅ Completed (12/15)
Batch 1: Core Licensing Flows (5/5) ✅
- 01-license-validation-flow.md (23KB)
- 02-seat-acquisition-flow.md (26KB)
- 03-heartbeat-renewal-flow.md (24KB)
- 04-seat-release-flow.md (23KB)
- 05-zombie-session-cleanup-flow.md (25KB)
Batch 2: Billing/Subscription Flows (5/5) ✅
- 06-stripe-checkout-flow.md (22KB)
- 07-trial-license-activation-flow.md (25KB)
- 08-license-renewal-flow.md (24KB)
- 09-subscription-cancellation-flow.md (23KB)
- 10-usage-based-metering-flow.md (26KB)
Batch 3: Infrastructure/Security Flows (2/5) 🟡
- 11-gke-deployment-flow.md (19KB)
- 12-database-migration-flow.md (20KB)
- 13-redis-session-management-flow.md (27KB) ⭐ Created today
- 14-cloud-kms-license-signing-flow.md (25KB) ⭐ Created today
- 15-security-incident-response-flow.md ❌ MISSING
❌ Missing (1/15)
Diagram 15: Security Incident Response Flow
Scope:
- Threat detection (Cloud Armor, Cloud Logging)
- Alert routing (Cloud Monitoring → PagerDuty/Slack)
- Incident handling (Runbook execution, forensics)
- Post-mortem (Root cause analysis, ADR updates)
Dependencies:
- ADR-020: Security Hardening
- Cloud Monitoring configuration
- Incident response runbooks
Effort: 2-3 hours Priority: P1
3. FastAPI → Django Conversion Inventory
Files Requiring Conversion (50+ files)
Category 1: Architecture Documentation (2 files)
ADRs:
| File | Lines w/ FastAPI | Conversion Effort | Priority |
|---|---|---|---|
| adr-019-monitoring-observability.md | 10 lines | 30 min | P0 |
| adr-020-security-hardening.md | 140+ lines | 2 hours | P0 |
Subtotal: 2.5 hours
Category 2: Sequence Diagrams (14 files)
All diagrams 01-14 contain FastAPI code examples
| Diagram | FastAPI Lines | Django Conversion | Priority |
|---|---|---|---|
| 01-license-validation-flow.md | 50+ | Complete rewrite | P0 |
| 02-seat-acquisition-flow.md | 60+ | Complete rewrite | P0 |
| 03-heartbeat-renewal-flow.md | 55+ | Complete rewrite | P0 |
| 04-seat-release-flow.md | 50+ | Complete rewrite | P0 |
| 05-zombie-session-cleanup-flow.md | 40+ | Complete rewrite | P0 |
| 06-stripe-checkout-flow.md | 70+ | Complete rewrite | P0 |
| 07-trial-license-activation-flow.md | 45+ | Complete rewrite | P0 |
| 08-license-renewal-flow.md | 50+ | Complete rewrite | P1 |
| 09-subscription-cancellation-flow.md | 55+ | Complete rewrite | P1 |
| 10-usage-based-metering-flow.md | 65+ | Complete rewrite | P1 |
| 11-gke-deployment-flow.md | 80+ | Complete rewrite | P1 |
| 12-database-migration-flow.md | 40+ | Complete rewrite | P1 |
| 13-redis-session-management-flow.md | 70+ | Complete rewrite | P0 |
| 14-cloud-kms-license-signing-flow.md | 90+ | Complete rewrite | P0 |
Subtotal: 8-10 hours (30-45 min per diagram)
Category 3: Architecture Documents (4 files)
| File | FastAPI Lines | Conversion Effort | Priority |
|---|---|---|---|
| c2-container-diagram.md | 30+ | 1.5 hours | P0 |
| c2-container-diagram.md | 40+ | 1.5 hours | P0 |
| c1-system-context.md | 10+ | 30 min | P1 |
| CODITECT-ECOSYSTEM-architecture.md | 20+ | 1 hour | P1 |
Subtotal: 4.5 hours
Category 4: Workflow Documentation (4 files)
| File | FastAPI Lines | Conversion Effort | Priority |
|---|---|---|---|
| license-acquisition-workflow.md | 100+ | 2 hours | P0 |
| heartbeat-mechanism.md | 80+ | 1.5 hours | P0 |
| graceful-license-release.md | 60+ | 1 hour | P1 |
| user-registration-flow.md | 30+ | 45 min | P1 |
Subtotal: 5.25 hours
Category 5: Project Documentation (10 files)
| File | FastAPI References | Conversion Effort | Priority |
|---|---|---|---|
| CLAUDE.md | 8 references | 1 hour | P0 |
| README.md | 5 references | 45 min | P0 |
| coditect-application-integration.md | 30+ lines | 1.5 hours | P1 |
| day-1-execution-guide.md | 20+ lines | 1 hour | P1 |
| implementation-roadmap.md | 100+ lines | 2 hours | P1 |
| project-plan-v3-fastapi-backup.md | Entire file | Remove/archive | P2 |
| cloud-kms-deployment-summary.md | 40+ lines | 1.5 hours | P1 |
| cloud-kms-setup.md | 5 references | 30 min | P2 |
| CONTRIBUTING.md | 2 references | 15 min | P2 |
| cloud-agnostic-stack-analysis.md | 50+ lines | 1 hour | P2 |
Subtotal: 9.5 hours
Category 6: Research Documentation (2 files)
| File | FastAPI Lines | Conversion Effort | Priority |
|---|---|---|---|
| workflow-coditect-ai-analysis.md | 60+ lines | 1 hour | P2 |
| deployed-applications/ | Multiple files | 2 hours | P2 |
Subtotal: 3 hours
TOTAL CONVERSION EFFORT: 33.25 hours (~8-9 days at 4 hours/day)
4. Dependency Mapping
Conversion Dependencies
Phase 7A: Foundation (Day 1-2)
├── Create Django Conversion Guide ✅ COMPLETE
├── Create C3 Component Diagrams (Django Backend) ⬅️ BLOCKER for conversions
└── Update ADR-007 with complete examples
Phase 7B: Critical Path Conversions (Day 3-5)
├── Dependencies: Phase 7A complete
├── Fix sequence diagrams 01-05 (core licensing)
├── Fix sequence diagrams 13-14 (Redis, KMS)
├── Fix ADR-019, ADR-020
└── Fix CLAUDE.md, README.md
Phase 7C: Supporting Conversions (Day 6-7)
├── Dependencies: Phase 7B complete
├── Fix sequence diagrams 06-12
├── Fix workflow documentation
├── Fix architecture documents (C2)
└── Fix integration guides
Phase 7D: Remaining Conversions (Day 8-9)
├── Dependencies: Phase 7C complete
├── Fix project planning docs
├── Fix research documentation
└── Archive FastAPI backup files
Phase 7E: Validation & Gap Analysis (Day 10)
├── Dependencies: All conversions complete
├── Run comprehensive grep for remaining "FastAPI" references
├── Validate all Django code examples compile
├── Perform final gap analysis
└── Generate conversion summary report
Diagram Creation Dependencies
C3 Diagrams
├── C3-01: Django Backend Components ⬅️ BLOCKER for all conversions
├── C3-02: PostgreSQL Components ⬅️ BLOCKER for sequence diagram fixes
├── C3-03: Redis Components ⬅️ BLOCKER for diagrams 13, 02, 03
├── C3-04: GKE Components ⬅️ BLOCKER for diagram 11
├── C3-05: Identity Platform ⬅️ Needed for diagram 07
├── C3-06: Cloud KMS ⬅️ Needed for diagram 14
├── C3-07: Monitoring ⬅️ Needed for ADR-019
└── C3-08: CI/CD ⬅️ Needed for diagram 11
C4 Diagrams
├── C4-01: TenantModel Hierarchy ⬅️ Needed for all sequence diagrams
├── C4-02: License Acquisition Flow ⬅️ Needed for diagrams 01-04
├── C4-03: JWT Authentication ⬅️ Needed for ADR-020
├── C4-04: Multi-Tenant Context ⬅️ Needed for all diagrams
└── C4-05: Heartbeat TTL ⬅️ Needed for diagram 03
Supporting Diagrams
├── SUP-01: ERD ⬅️ BLOCKER for C3-02, diagram 12
├── SUP-02: GKE Deployment ⬅️ Needed for diagram 11
├── SUP-03: VPC Network ⬅️ Needed for C3-04
└── SUP-04: Multi-Tenant Data Flow ⬅️ Needed for all diagrams
Critical Path
Must Complete First (Blockers):
- C3-01: Django Backend Components (3h)
- C4-01: TenantModel Hierarchy (1.5h)
- SUP-01: Entity-Relationship Diagram (3h)
- C4-04: Multi-Tenant Context Manager (1.5h)
Total Critical Path: 9 hours
Then Enable: All sequence diagram conversions + ADR fixes
5. Work Breakdown Structure
Phase 7: Documentation Cleanup & Architecture Completion
Duration: 10-12 days (40-48 hours) Dependencies: Current documentation work (SDD, ADRs 001-020, Diagrams 01-14)
Phase 7A: Critical Diagrams (P0) - Days 1-3
Effort: 12 hours
| Task | Effort | Priority | Dependencies |
|---|---|---|---|
| C3-01: Django Backend Components | 3h | P0 | ADR-007 |
| C4-01: TenantModel Hierarchy | 1.5h | P0 | ADR-007 |
| SUP-01: ERD | 3h | P0 | ADR-007 PostgreSQL schema |
| C4-04: Multi-Tenant Context | 1.5h | P0 | ADR-007 |
| C3-02: PostgreSQL Components | 2h | P0 | SUP-01 |
| C3-03: Redis Components | 2h | P0 | Diagrams 02, 03, 13 |
Phase 7B: Core Conversions (P0) - Days 4-6
Effort: 12 hours
| Task | Effort | Priority | Dependencies |
|---|---|---|---|
| Fix Diagrams 01-05 (Core Licensing) | 2.5h | P0 | Phase 7A |
| Fix Diagrams 13-14 (Redis, KMS) | 1.5h | P0 | C3-03, C3-06 |
| Fix ADR-019 (Monitoring) | 30min | P0 | C3-07 |
| Fix ADR-020 (Security) | 2h | P0 | C4-03 |
| Fix CLAUDE.md | 1h | P0 | All C3 complete |
| Fix README.md | 45min | P0 | - |
| Fix C2 Container Diagram | 1.5h | P0 | C3-01 |
| Fix license-acquisition-workflow.md | 2h | P0 | Diagrams 01-02 |
Phase 7C: Supporting Conversions (P1) - Days 7-8
Effort: 12 hours
| Task | Effort | Priority | Dependencies |
|---|---|---|---|
| Fix Diagrams 06-12 (Billing/Infra) | 4h | P1 | Phase 7B |
| Complete Diagram 15 (Security Incident) | 2.5h | P1 | ADR-020 |
| Fix Workflow Docs (3 files) | 2.5h | P1 | - |
| C4-02: License Acquisition Flow | 2h | P1 | Diagram 01 |
| C4-03: JWT Authentication | 1.5h | P1 | ADR-020 |
| C3-04: GKE Components | 2h | P1 | SUP-02 |
Phase 7D: Remaining Work (P1-P2) - Days 9-10
Effort: 10 hours
| Task | Effort | Priority | Dependencies |
|---|---|---|---|
| C3-05: Identity Platform | 2h | P1 | Diagram 07 |
| C3-06: Cloud KMS | 1.5h | P1 | Diagram 14 |
| C3-07: Monitoring Components | 2h | P1 | ADR-019 |
| SUP-02: GKE Deployment Arch | 2.5h | P1 | Diagram 11 |
| SUP-03: VPC Network | 2h | P1 | - |
| Fix Integration Guides (3 files) | 3h | P1 | - |
| Fix Project Planning Docs | 2h | P2 | - |
Phase 7E: Validation & Gap Analysis (P0) - Day 11-12
Effort: 8 hours
| Task | Effort | Priority | Dependencies |
|---|---|---|---|
| Grep audit for remaining FastAPI refs | 1h | P0 | All conversions |
| Validate Django code compiles | 2h | P0 | - |
| Create cross-reference index | 1.5h | P0 | - |
| Comprehensive gap analysis | 2h | P0 | - |
| Generate conversion summary | 1.5h | P0 | - |
| Update PROJECT-PLAN & TASKLIST | 1h | P0 | Gap analysis |
TOTAL PHASE 7 EFFORT: 54 hours (11-14 days at 4-5 hours/day)
6. Prioritization Matrix
P0: Critical (Must Complete)
Diagrams (6):
- C3-01: Django Backend Components
- C3-02: PostgreSQL Components
- C3-03: Redis Components
- C4-01: TenantModel Hierarchy
- C4-04: Multi-Tenant Context
- SUP-01: ERD
Conversions (18 files):
- Sequence Diagrams: 01-05, 13-14 (7 files)
- ADRs: 019, 020 (2 files)
- Architecture: c2-container-diagram.md (1 file)
- Workflow: license-acquisition-workflow.md, heartbeat-mechanism.md (2 files)
- Project: CLAUDE.md, README.md (2 files)
- Validation: Gap analysis, conversion summary (2 files)
Total P0: 24 items, ~26 hours
P1: High Priority
Diagrams (7):
- C3-04: GKE Components
- C3-05: Identity Platform
- C3-06: Cloud KMS
- C3-07: Monitoring
- C4-02: License Acquisition
- C4-03: JWT Auth
- SUP-02: GKE Deployment
Conversions (15 files):
- Sequence Diagrams: 06-12, 15 (8 files)
- Workflow: graceful-license-release.md, user-registration-flow.md (2 files)
- Architecture: c2-container-diagram.md, c1-system-context.md (2 files)
- Integration: 3 guide files
Total P1: 22 items, ~22 hours
P2: Nice to Have
Diagrams (4):
- C3-08: CI/CD Components
- C4-05: Heartbeat TTL
- SUP-03: VPC Network
- SUP-04: Multi-Tenant Data Flow
Conversions (7 files):
- project-plan-v3-fastapi-backup.md
- Research docs (2 files)
- CONTRIBUTING.md
- Remaining integration guides (3 files)
Total P2: 11 items, ~8 hours
7. Risk Assessment
High Risk
| Risk | Impact | Probability | Mitigation |
|---|---|---|---|
| Incomplete Django patterns in ADR-007 | High | Medium | Create comprehensive C3-01 first |
| Code examples don't compile | High | Low | Test all Django code before committing |
| Missed FastAPI references | Medium | High | Automated grep scan after conversions |
| Inconsistent multi-tenant patterns | High | Medium | Use ADR-007 as single source of truth |
Medium Risk
| Risk | Impact | Probability | Mitigation |
|---|---|---|---|
| Conversion takes longer than estimated | Medium | High | Prioritize P0 items first |
| New FastAPI refs added during conversions | Medium | Medium | Lock documentation during Phase 7 |
| Diagram complexity underestimated | Medium | Medium | Start with simpler C3 diagrams |
Low Risk
| Risk | Impact | Probability | Mitigation |
|---|---|---|---|
| Minor inconsistencies across docs | Low | High | Accept and fix in Phase 8 |
| P2 items not completed | Low | Medium | Defer to Phase 8 |
8. Success Criteria
Phase 7 Complete When:
Documentation:
- Zero FastAPI references in P0 files (grep audit passes)
- All C3 diagrams created (8 diagrams)
- All C4 diagrams created (5 diagrams)
- All supporting diagrams created (4 diagrams)
- Sequence diagram 15 completed
Code Quality:
- All Django code examples compile without errors
- All examples use ADR-007 patterns consistently
- Multi-tenant context used in all applicable examples
- Django REST Framework serializers replace all Pydantic models
Cross-References:
- All sequence diagrams reference correct ADRs
- All ADRs reference correct C3/C4 diagrams
- All workflow docs reference correct sequence diagrams
- Documentation index updated with all new diagrams
Gap Analysis:
- Comprehensive gap analysis document created
- All gaps categorized by severity (P0/P1/P2)
- Remediation plan for remaining gaps
- PROJECT-PLAN and TASKLIST updated
9. Next Steps
Immediate (Today)
- Update project-plan.md - Add Phase 7 with full WBS
- Update tasklist-with-checkboxes.md - Add all 57 new tasks
- Create C3-01: Django Backend Components - First critical blocker
- Create C4-01: TenantModel Hierarchy - Second critical blocker
This Week (Days 1-3)
- Complete all P0 diagrams (6 diagrams, 12 hours)
- Begin P0 conversions (sequence diagrams 01-05)
- Fix ADR-019 and ADR-020
- Update CLAUDE.md and README.md
Next Week (Days 4-7)
- Complete P0 conversions (18 files)
- Begin P1 diagrams and conversions
- Complete sequence diagram 15
- Create workflow documentation
Week 3 (Days 8-10)
- Complete remaining P1 items
- Address P2 items (time permitting)
- Run comprehensive validation
- Perform gap analysis
Week 4 (Days 11-12)
- Generate conversion summary
- Update all cross-references
- Final documentation review
- Handoff to development team
10. Resource Requirements
Personnel:
- 1 Technical Writer (full-time, 12 days)
- 1 Django Developer (part-time, 6 days for validation)
- 1 Solutions Architect (part-time, 3 days for C3/C4 review)
Tools:
- Mermaid diagram editor
- VS Code with Django extensions
- grep/ripgrep for FastAPI reference scanning
- Django test environment for code validation
Budget:
- Technical writer: $120/hr × 96 hours = $11,520
- Django developer: $150/hr × 48 hours = $7,200
- Solutions architect: $200/hr × 24 hours = $4,800
- Total: $23,520
11. Appendix: File Inventory
A. Sequence Diagrams Requiring Conversion
docs/diagrams/sequences/
├── 01-license-validation-flow.md (23KB, 50+ FastAPI lines)
├── 02-seat-acquisition-flow.md (26KB, 60+ FastAPI lines)
├── 03-heartbeat-renewal-flow.md (24KB, 55+ FastAPI lines)
├── 04-seat-release-flow.md (23KB, 50+ FastAPI lines)
├── 05-zombie-session-cleanup-flow.md (25KB, 40+ FastAPI lines)
├── 06-stripe-checkout-flow.md (22KB, 70+ FastAPI lines)
├── 07-trial-license-activation-flow.md (25KB, 45+ FastAPI lines)
├── 08-license-renewal-flow.md (24KB, 50+ FastAPI lines)
├── 09-subscription-cancellation-flow.md (23KB, 55+ FastAPI lines)
├── 10-usage-based-metering-flow.md (26KB, 65+ FastAPI lines)
├── 11-gke-deployment-flow.md (19KB, 80+ FastAPI lines)
├── 12-database-migration-flow.md (20KB, 40+ FastAPI lines)
├── 13-redis-session-management-flow.md (27KB, 70+ FastAPI lines)
└── 14-cloud-kms-license-signing-flow.md (25KB, 90+ FastAPI lines)
B. Required C3 Component Diagrams
docs/diagrams/architecture/c3-components/
├── c3-01-django-backend-components.md (NEW, 3h)
├── c3-02-postgresql-components.md (NEW, 2h)
├── c3-03-redis-components.md (NEW, 2h)
├── c3-04-gke-cluster-components.md (NEW, 2h)
├── c3-05-identity-platform-components.md (NEW, 2h)
├── c3-06-cloud-kms-components.md (NEW, 1.5h)
├── c3-07-monitoring-components.md (NEW, 2h)
└── c3-08-cicd-components.md (NEW, 1.5h)
C. Required C4 Code Diagrams
docs/diagrams/architecture/c4-code/
├── c4-01-tenant-model-hierarchy.md (NEW, 1.5h)
├── c4-02-license-acquisition-flow.md (NEW, 2h)
├── c4-03-jwt-authentication-flow.md (NEW, 1.5h)
├── c4-04-multitenant-context-manager.md (NEW, 1.5h)
└── c4-05-heartbeat-ttl-management.md (NEW, 1.5h)
D. Required Supporting Diagrams
docs/diagrams/supporting/
├── erd-database-schema.md (NEW, 3h)
├── gke-deployment-architecture.md (NEW, 2.5h)
├── vpc-network-architecture.md (NEW, 2h)
└── multitenant-data-flow.md (NEW, 2h)
Last Updated: 2025-11-30 Next Update: After Phase 7A complete (3 days) Owner: CODITECT Infrastructure Team