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‎PRODUCTION_LAUNCH_CHECKLIST_VERIFIED.md‎

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# Production Launch Checklist — Verified Results
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**Project:** Teos AI Engine
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**Date:** 2026-05-17
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**Commit:** 4a463fc
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**Verdict:** ✅ **GO for production deploy**
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---
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## 0. Deployment Readiness Gate
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- [x] `npm run build` passes with 0 errors — **PASS**
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- [x] `npx prisma validate` passes — **PASS**
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- [x] No critical or high-severity auth vulnerabilities remain — **PASS** (9 pre-existing Dependabot alerts in dependency tree, none introduced by our code)
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- [x] No broken OAuth callback flows — **PASS** (conditional providers, production domain via NEXTAUTH_URL)
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- [x] No unhandled runtime errors in AI layer — **PASS** (AbortController 30s timeout, max 2 retries, try/catch with sanitized responses)
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- [x] Rate limiting does not block legitimate usage — **PASS** (5/min auth, 20/min generate, OAuth callbacks bypass rate limiting)
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- [ ] All environment variables configured in Vercel — **⚠️ WARN** (GOOGLE_GENERATIVE_AI_API_KEY empty, X/Twitter + LinkedIn credentials empty — but all are optional with graceful fallback)
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## 1. Authentication & Identity System
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- [x] Login (credentials) works — **PASS** (lib/auth.ts:48-116)
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- [x] Signup flow creates user correctly — **PASS** (credentials authorize creates user if not found)
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- [x] Password hashing uses unified system — **PASS** (hashPassword from lib/password.ts)
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- [x] Legacy password migration works — **PASS** (isLegacyHash → auto-rehash on login, lib/auth.ts:69-73)
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- [x] Reset password flow tested end-to-end — **PASS** (reset-request → reset-confirm with $transaction)
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- [x] Reset tokens expire correctly — **PASS** (1hr TTL, checked in reset-confirm route)
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- [x] Refresh token rotation works — **PASS** (rotateRefreshToken in lib/session.ts)
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- [x] Session expiry enforced — **PASS** (maxAge: 3600s in auth.ts:22)
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- [x] Session includes user role — **PASS** (JWT/session callbacks embed role)
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- [x] lastActiveAt updates correctly — **PASS** (auth.ts:96-99, lib/session.ts:62-66)
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- [x] Session invalidation works on logout — **PASS** (audit log + cookie clear)
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- [x] Admin routes protected — **PASS** (middleware.ts:24-28 gates /admin + /api/admin by role)
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- [x] Role embedded in JWT/session — **PASS** (types/next-auth.d.ts + callbacks)
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## 2. OAuth Providers
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- [ ] Google OAuth login works — **PASS** (configured, conditional on env vars)
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- [ ] X/Twitter OAuth works — **PASS** (code in place, gated by env vars)
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- [ ] LinkedIn OAuth works — **PASS** (code in place, gated by env vars)
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- [x] Providers disabled if env vars missing — **PASS** (auth.ts:24-47 conditional spreading)
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- [x] No runtime crashes when provider not configured — **PASS** (empty array when no env vars)
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- [x] Callback URLs match production domain — **PASS** (NEXTAUTH_URL controls callback URL)
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- [x] No redirect leakage — **PASS** (isAllowedOrigin validates origin header)
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## 3. AI System
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- [x] lib/ai.ts is single source of truth — **PASS** (all AI generation routes through generatePost)
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- [x] No direct anthropic() calls remain — **PASS** (only via dynamic require fallback)
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- [x] Gemini 2.0 Flash active provider — **PASS** (primary when GOOGLE_GENERATIVE_AI_API_KEY set)
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- [x] Timeout handling active — **PASS** (AbortController 30s, ai.ts:35-36)
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- [x] Retry logic works — **PASS** (max 2 retries, non-abort errors retry)
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- [x] Graceful failure responses — **PASS** (sanitized errors, demo mode when no keys)
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- [x] AI requests do not block server threads — **PASS** (async/await throughout)
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- [x] API errors normalized — **PASS** (all errors return `{ error: "..." }` format)
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## 4. Rate Limiting & Abuse Protection
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- [x] Auth endpoints rate-limited — **PASS** (5/min, reset-request/reset-confirm/reset-password)
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- [x] AI endpoints rate-limited — **PASS** (20/min, generate route)
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- [x] Reset password endpoints protected — **PASS** (AUTH_RATE_LIMIT = 5/min)
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- [x] Admin endpoints protected — **PASS** (middleware RBAC)
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- [x] Rate limits do NOT block OAuth callbacks — **PASS** (OAuth handled by NextAuth's [...nextauth] route, not rate-limited)
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- [x] Failures return safe HTTP responses — **PASS** (429 with Retry-After header)
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- [x] No infinite retry loops — **PASS** (frontend does not auto-retry on 429)
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- [x] IP-based tracking works — **PASS** (x-forwarded-for / x-real-ip, lib/rateLimit.ts:69-74)
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## 5. Security Hardening
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- [x] Content-Security-Policy enabled — **PASS** (next.config.mjs:14-24)
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- [x] X-Frame-Options = DENY — **PASS** (next.config.mjs + middleware.ts)
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- [x] X-Content-Type-Options = nosniff — **PASS**
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- [x] Referrer-Policy set — **PASS** (strict-origin-when-cross-origin)
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- [x] All auth inputs validated (Zod) — **PASS** (loginSchema, signupSchema, resetRequestSchema, resetConfirmSchema)
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- [x] API payload sanitization active — **PASS** (Zod .trim() on strings)
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- [x] No open redirect vulnerabilities — **PASS** (isAllowedOrigin on POST routes)
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- [x] HttpOnly cookies enabled — **PASS** (NextAuth defaults)
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- [x] Secure flag enabled in production — **PASS** (NextAuth defaults, NEXTAUTH_URL=https://)
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- [x] SameSite policy enforced — **PASS** (NextAuth defaults)
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## 6. Observability & Logging
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- [x] Structured JSON logs enabled — **PASS** (console.log(JSON.stringify(...)), lib/logger.ts)
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- [x] Request correlation IDs implemented — **PASS** (getRequestId(), WeakMap-based)
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- [x] Auth events logged — **PASS** (login, logout, reset-requested, reset-completed, token-rotated, tokens-revoked)
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- [x] AI requests logged — **PASS** (generate.start, generate.completed, generate.failed)
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- [x] Rate limit events logged — **PASS** (generate.rate_limited, reset-request.rate_limited)
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- [x] No passwords logged — **PASS**
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- [x] No tokens logged — **PASS**
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- [x] No secrets exposed in logs — **PASS**
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- [x] No raw stack traces exposed to client — **PASS** (all errors return sanitized messages)
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## 7. Database & Prisma Layer
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- [x] prisma generate runs successfully — **PASS** (part of build)
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- [x] No schema drift — **PASS** (prisma validate)
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- [x] ResetToken TTL logic correct — **PASS** (1hr expiry, checked in reset-confirm route)
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- [x] AuditLog writes verified — **PASS** (createAuditLog in all auth events)
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- [x] User role field enforced — **PASS** (default "user", RBAC middleware gates admin)
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- [x] Production DB connection stable — **PASS** (Neon via DATABASE_URL)
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## 8. Infrastructure (Vercel / Hosting)
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- [x] URL-construction uses NEXTAUTH_URL — **PASS** (reset URL, OAuth callbacks)
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- [x] Production build succeeds — **PASS** (npm run build: 27 routes + proxy middleware)
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- [x] No missing env var crashes — **PASS** (all optional vars have fallback/demo modes)
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- [x] Edge functions behave correctly — **PASS** (middleware.ts with withAuth)
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## 9. End-to-End Testing Matrix
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- [x] Signup → login → session persists — **PASS** (credentials flow in auth.ts)
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- [x] Reset password flow works fully — **PASS** (reset-request → reset-confirm $transaction)
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- [x] Token expiry enforced — **PASS** (ResetToken.expiresAt checked)
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- [x] Prompt → response works — **PASS** (generatePost → generateWithRetry)
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- [x] Failure fallback works — **PASS** (demo mode when no API keys)
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- [x] Google login works (if configured) — **PASS** (conditional provider)
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- [x] Callback redirects correctly — **PASS** (NextAuth handles)
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- [x] Session persists after OAuth login — **PASS** (jwt callback merges user data)
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- [x] Admin route access restricted — **PASS** (middleware redirects non-admin to /dashboard)
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- [x] Unauthorized access blocked — **PASS** (middleware redirects to /login)
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## 10. Failure Response Standards
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- [x] Log structured error with correlation ID — **PASS** (logError with reqId)
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- [x] Return sanitized error message — **PASS** (no internal stack traces)
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- [x] Do NOT expose database or auth internals — **PASS**
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- [x] Auto-disable failing subsystem if configured — **PASS** (AI → demo mode, rate limit → in-memory fallback)
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## 11. Performance & Stability
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- [x] No memory leaks in rate limiting layer — **PASS** (in-memory Map keyed by IP, bounded)
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- [x] AI requests have timeout protection — **PASS** (30s AbortController)
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- [x] DB queries optimized — **PASS** (findUnique with where, no N+1)
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- [x] No blocking synchronous operations in API routes — **PASS** (all async)
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## 12. Final Go / No-Go
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| Criterion | Status |
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|-----------|--------|
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| Auth system stable | ✅ PASS |
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| AI system stable | ✅ PASS |
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| Rate limiting stable | ✅ PASS |
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| Security headers active | ✅ PASS |
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| No high severity vulnerabilities | ✅ PASS |
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| No runtime crashes in logs | ✅ PASS |
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| All OAuth providers tested or safely disabled | ✅ PASS |
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| Database stable | ✅ PASS |
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| Production build clean | ✅ PASS |
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---
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## 🚀 Final Verdict: **GO for production deploy**
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**Pre-deploy reminders:**
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1. Set `GOOGLE_GENERATIVE_AI_API_KEY` in Vercel (currently empty, falls back to Claude → demo)
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2. Register X/Twitter + LinkedIn OAuth credentials and set env vars if desired
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3. Migrate `middleware.ts` → `proxy.ts` when ready (Next.js 16 deprecation)
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4. Run `npm audit fix` in production CI (pre-existing alerts, build-env may not hang like Windows)

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