<!-- Generated via BMAD™ Core: execute-checklist (po-master-checklist) in comprehensive mode -->

# PO Master Checklist Validation Report
Project: United Tattoo  
Checklist: .bmad-core/checklists/po-master-checklist.md  
Mode: Comprehensive (YOLO)  
Date: 2025-09-18 17:31 MT

Reviewed Artifacts (evidence):
- PRD Index: docs/prd/index.md
- Epics: docs/prd/epics.md
- Brownfield Rollback Strategy: docs/prd/rollback-strategy.md
- Package manifest/scripts: package.json
- Repository structure (Next.js App Router, app/, components/, sql/schema.sql, wrangler.toml present)
- Not exhaustively reviewed in this pass: detailed brownfield architecture docs referenced by rollback strategy

Project Type Determination:
- Type: Brownfield
- UI/UX: Yes (public-facing site + admin + booking)
- Sections skipped due to type: All [GREENFIELD ONLY] items

---

## Executive Summary

- Project type: Brownfield with UI
- Overall readiness: 78% (est.)
- Recommendation: CONDITIONAL (proceed with targeted pre-dev fixes)
- Critical blocking issues: 3
- Sections skipped due to project type: 1.1 Project Scaffolding [GREENFIELD ONLY], some GREENFIELD-only checks across sections

Top Signals:
- Strong foundation: PRD structure, epics, working Next + OpenNext + Cloudflare Pages flow, D1 in place, tests infra present (Vitest/RTL), comprehensive rollback strategy authored
- Gaps to close: feature flags not wired in code, migration “down” strategy + structure, CI/CD pipeline not committed, observability not implemented

---

## Pass Rates by Section

1) Project Setup & Initialization: 85%  
2) Infrastructure & Deployment: 70%  
3) External Dependencies & Integrations: 75%  
4) UI/UX Considerations: 70%  
5) User/Agent Responsibility: 60%  
6) Feature Sequencing & Dependencies: 80%  
7) Risk Management (Brownfield): 90%  
8) MVP Scope Alignment: 80%  
9) Documentation & Handoff: 75%  
10) Post-MVP Considerations: 70%

Overall: 78%

Method: Items marked as PASS/FAIL/PARTIAL/N/A; PASS rate computed per section; estimates grounded in listed evidence and repo state.

---

## Detailed Findings

### 1. Project Setup & Initialization
Status: PASS (85%)

- 1.3 Development Environment — PASS
  - next dev/build/start present; Tailwind configured; app router present
- 1.4 Core Dependencies — PARTIAL
  - Versions pinned adequately; conflicts not detected; brownfield compatibility partially validated in practice
- 1.2 Existing System Integration [BROWNFIELD] — PARTIAL
  - Local testing approach exists (vitest), but explicit regression guardrails/process not fully documented for brownfield deltas

Actions:
- Add a “Local Dev Setup” section to README with explicit tool versions and smoke checklist
- Document brownfield regression plan at story or epic level (link to tests approach)

### 2. Infrastructure & Deployment
Status: PARTIAL (70%)

- 2.3 Deployment Pipeline — PARTIAL
  - OpenNext build + wrangler deploy scripts present; CI/CD pipeline file not committed
- 2.1 Database & Data Store Setup — PARTIAL
  - D1 used with sql/schema.sql; no migrations directory or down scripts implemented
- 2.4 Testing Infrastructure — PASS/PARTIAL
  - Vitest + RTL configured; component/E2E (Playwright) not present in repo

Actions:
- Commit CI pipeline (lint, typecheck, test, build, preview deploy); enforce budgets
- Introduce sql/migrations/{timestamp}_up.sql and corresponding _down.sql; add npm scripts
- Add Playwright for E2E critical flows (admin auth, booking form happy-path, public pages)

### 3. External Dependencies & Integrations
Status: PARTIAL (75%)

- Third-party services/API keys — PARTIAL
  - Env validation via lib/env.ts exists; secrets via wrangler; explicit storage/rotation guidance not fully documented
- External APIs — N/A or PASS (current scope primarily internal)

Actions:
- Expand env/secret handling doc: wrangler secrets put process + required vars matrix for preview/prod

### 4. UI/UX Considerations [UI/UX ONLY]
Status: PARTIAL (70%)

- Design system setup — PASS/PARTIAL
  - Tailwind, shadcn/ui patterns present; accessibility policy not fully documented
- Frontend infra — PASS
  - App Router, build pipeline OK
- UX flow/error/loading patterns — PARTIAL
  - Core flows present; global a11y/error/loading standards doc not found

Actions:
- Add a11y acceptance checklist; standardize error/loading skeletons; document form validation patterns (Zod + RHF) app-wide

### 5. User/Agent Responsibility
Status: PARTIAL (60%)

- Responsibilities delineation — PARTIAL
  - BMAD personas exist; explicit “who does what” for external accounts/payment credentials not clearly captured in PRD

Actions:
- Add a PRD “Responsibilities” section (user vs agents), especially for accounts, payments, long-lived creds

### 6. Feature Sequencing & Dependencies
Status: PASS (80%)

- Functional/technical dependency sequencing — PASS
  - Epics articulate sequencing; stories exist for feature flags
- Cross-epic dependencies — PARTIAL
  - Good linkage; ensure early infra tasks (flags/migrations/observability) precede feature toggling

Actions:
- Ensure flags and migration framework tasks are scheduled before dependent stories

### 7. Risk Management [BROWNFIELD ONLY]
Status: STRONG PASS (90%)

- Rollback strategy — PASS
  - docs/prd/rollback-strategy.md comprehensive; explicit flags, triggers, runbooks
- DB/R2 rollback — PARTIAL
  - Plan documented; “down” migrations and backup scripts not yet implemented

Actions:
- Implement flags wiring; add db:backup script; create initial down migrations

### 8. MVP Scope Alignment
Status: PASS (80%)

- Core goals alignment — PASS
- User journeys completeness — PARTIAL
  - Booking/admin/public happy-paths defined; edge/error states captured but require a11y/error docs
- Technical requirements — PARTIAL
  - Performance/observability not yet wired

Actions:
- Add observability + performance budgets; define a11y minimums

### 9. Documentation & Handoff
Status: PARTIAL (75%)

- Dev docs (API/setup/decisions) — PARTIAL
  - Good architecture/PRD; API route docs limited; ADRs not formalized
- User docs — PARTIAL
  - Public banners/communications outlined in rollback doc; UX specs can be expanded

Actions:
- Add lightweight ADRs for key decisions; document API route contracts (request/response, headers, caching)

### 10. Post-MVP Considerations
Status: PARTIAL (70%)

- Future enhancements separation — PASS
- Monitoring & feedback — PARTIAL
  - Sentry/OTel not implemented; thresholds defined but not instrumented

Actions:
- Add Sentry + basic OTel; wire minimal metrics (route latencies, 5xx counts)

---

## Failed/Partial Items (Selected) with Context

- Feature flags not yet wired in code (FAIL)
  - Evidence: Rollback doc Appendix A notes flags wiring “not yet implemented”
- No down migrations or structured migrations dir (FAIL)
  - Evidence: Only sql/schema.sql found; no sql/migrations/ with up/down pairs
- CI/CD pipeline not committed (FAIL)
  - Evidence: No workflows or CI config in repo; scripts exist but automation missing
- Observability not implemented (PARTIAL/FAIL)
  - Evidence: No Sentry/OTel deps or init code present
- a11y/error/loading standards not documented (PARTIAL)
  - Evidence: No explicit doc; components exist but standards undefined

---

## Brownfield-Specific Analysis

- Integration risk level: Medium
  - Mitigations: Strong rollback plan, but lack of wired flags and down migrations increases operational risk
- Existing system impact assessment: Good coverage via rollback doc; verify admin and booking critical paths with E2E
- Rollback readiness: Conceptually strong; needs code + scripts to operationalize
- User disruption potential: Medium; mitigated by feature flags once implemented

---

## Risk Assessment

Top 5 Risks
1) Missing feature flag wiring delays safe rollout and reversibility (Impact: High, Prob: Med)
2) Lack of down migrations increases DB recovery time (High, Med)
3) No CI/CD pipeline risks regressions slipping to prod (High, Med)
4) Missing observability reduces detection speed for incidents (High, Med)
5) a11y/error/loading consistency gaps hurt UX and recovery UX (Med, Med)

Mitigations
- Implement flags + toggles first; build small demo wiring across admin/booking/public
- Establish migration framework with initial up/down; add db:backup script
- Commit CI with lint, typecheck, test, build, preview deploy; enforce budgets
- Add Sentry + minimal OTel; instrument critical routes
- Document a11y/error/loading patterns; add automated a11y checks

Timeline impact: 2–4 dev days to reach green on critical items (flags+migrations+CI), 1–2 days for observability and UX standards

---

## MVP Completeness

- Core features coverage: Solid foundation per Epics
- Missing essentials: Flags wiring, down migrations, CI pipeline, observability
- Scope creep: None apparent; strong alignment with business goals

---

## Implementation Readiness

- Developer clarity score: 8/10
- Ambiguous requirements: Low; primarily operationalization gaps
- Missing technical details: Migration down scripts, CI config, observability setup
- Integration point clarity (brownfield): Good in rollback doc; needs E2E to lock confidence

---

## Recommendations

Must-fix before development
1) Wire feature flags across admin, booking, public (server + client usage)
2) Introduce sql/migrations with up/down; add npm run db:backup and dry-run on preview
3) Commit CI pipeline (lint/type/test/build/preview deploy) with budgets

Should-fix for quality
4) Add Sentry + minimum route metrics; alert thresholds matching rollback triggers
5) Add Playwright E2E for admin auth, booking submit, key public pages

Consider for improvement
6) API route docs with request/response schemas; add ADRs
7) a11y/error/loading standards doc + automated a11y checks

Post-MVP deferrals
8) Advanced analytics/feedback loops; KV-based instant flags

---

## Brownfield Integration Confidence

- Preserve existing functionality: Medium → High after flags + E2E
- Rollback procedure completeness: Conceptually High; implementation Medium (needs flags, downs, scripts)
- Monitoring coverage for integration points: Low → Medium after Sentry/metrics
- Support team readiness: Moderate; comms templates exist

---

## Category Statuses

| Category                                | Status     | Critical Issues |
| --------------------------------------- | ---------- | --------------- |
| 1. Project Setup & Initialization       | PASS       |                 |
| 2. Infrastructure & Deployment          | PARTIAL    | CI, migrations  |
| 3. External Dependencies & Integrations | PARTIAL    | Secrets docs    |
| 4. UI/UX Considerations                 | PARTIAL    | a11y/error docs |
| 5. User/Agent Responsibility            | PARTIAL    | Ownership doc   |
| 6. Feature Sequencing & Dependencies    | PASS       |                 |
| 7. Risk Management (Brownfield)         | PASS       | Downs missing   |
| 8. MVP Scope Alignment                  | PASS       |                 |
| 9. Documentation & Handoff              | PARTIAL    | API/ADRs        |
| 10. Post-MVP Considerations             | PARTIAL    | Observability   |

---

## Final Decision

CONDITIONAL — Proceed after completing the Must-fix items:
- Feature flag wiring in code
- Migrations framework with down scripts + backup script
- CI pipeline committed and enforced

Once completed, readiness expected to exceed 90% with improved integration confidence.

---

## Appendix — Immediate Task Suggestions (Ticket Seeds)

- chore(flags): add lib/flags.ts; wire ADMIN_ENABLED, BOOKING_ENABLED, PUBLIC_DB_ARTISTS_ENABLED across surfaces
- chore(db): add sql/migrations/ with initial up/down from schema.sql; add npm scripts db:migrate:up/down, db:backup
- ci: add workflow with lint/type/test/build/preview; enforce bundle budgets
- feat(obs): add Sentry init; instrument critical routes; basic OTel traces
- test(e2e): add Playwright; scripts; minimal smoke flows (admin, booking, public)
- docs: a11y/error/loading standards; API route contracts; ownership/responsibilities; ADR template
