alivirgo/major-ai-skills/use-checklist-format

┌─────────────────────────────────────────────────────────────┐
│                 Procedural Clarity Mapping                  │
│                                                             │
│  Narrative Guide (High Risk of Human Error):                │
│  "Make sure you take a snapshot of the database before you  │
│   run the migration script, and remember to check that the  │
│   S3 backup bucket has public access disabled..."           │
│  ↳ Dense text, easy to skip the S3 bucket permission check  │
│                                                             │
│  Phase-Gated Markdown Checklist:                            │
│  ### Phase 1: Pre-Flight Safety Checks                      │
│ - [ ] 1. Trigger manual RDS snapshot: `db-snapshot-v2`     │
│ - [ ] 2. Verify S3 bucket encryption is set to AES-256     │
│ - [ ] 3. Confirm `DATABASE_URL` is set on staging          │
│  ↳ Zero-Ambiguity, Linear Execution, 1-Click Verification   │
└─────────────────────────────────────────────────────────────┘

I need to execute [PROCEDURAL TASK: e.g. Deploying Next.js 15 app with Stripe to production].
 
Generate an executable **3-Phase Markdown Checklist** with interactive checkboxes (`- [ ]`):
1.**Phase 1: Pre-Flight (Prerequisites & Backups)** - Mandatory verification before touching production.
2.**Phase 2: Live Cutover (Execution Steps)** - Step-by-step sequential commands in exact order.
3.**Phase 3: Post-Flight QA & Verification** - Health checks, smoke tests, and rollback trigger condition.
 
Rules:
-Include exact terminal commands / URLs where applicable.
-State the specific Rollback Trigger: "If [X] fails within 5 mins, execute [Y]".

### 🔒 Phase 1: Pre-Flight Safety Checks (T-Minus 30 Mins)
-[ ] 1. Verify point-in-time recovery (PITR) is enabled on AWS RDS.
-[ ] 2. Create manual snapshot: `aws rds create-db-snapshot --db-instance-identifier prod-db`.
-[ ] 3. Verify replication lag is $<1.0\text{s}$ on read replicas.
-[ ] 4. Announce planned maintenance window in `#internal-ops` Slack channel.
 
### ⚡ Phase 2: Live Migration Execution (T-Minus 0 Mins)
-[ ] 5. Run schema migration: `npm run db:migrate:deploy`.
-[ ] 6. Verify all table indexes built with `CONCURRENTLY` flag.
-[ ] 7. Deploy new application container image (v2.4.1).
 
### 🩺 Phase 3: Post-Flight Smoke Tests (T-Plus 15 Mins)
-[ ] 8. Send test payload to `/api/health` and verify `200 OK`.
-[ ] 9. Place a live test payment with test card; verify webhook logs in Stripe Dashboard.
-[ ] 10. Confirm CPU utilization remains $<45\%$ in Datadog metrics.
 
### 🚨 Emergency Rollback Trigger
-[ ] If HTTP 5xx error rate exceeds $1.0\%$ for $>2$ minutes:  
      Rollback container: `kubectl rollout undo deployment/api-server`.