Deploy Check
The deploy-check skill executes a comprehensive pre-deployment checklist, verifying critical aspects like build status, test results, environment variables, and repository state. It aims to identify potential issues early, blocking deployment if critical failures are detected.
What it does
This skill automates a rigorous pre-deployment review, checking for a clean Git state, successful project build, and error-free type checking and linting. It also validates the test suite, ensures all necessary environment variables are present, and confirms correct Vercel and Supabase configurations.
When it fits
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When preparing any application for a production deployment to ensure all quality gates are met.
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Before merging feature branches into main to catch integration issues early.
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As a standardized final verification step for continuous deployment workflows.
Setup
-
Copy the skill definition file into the repository at .claude/skills/deploy-check/SKILL.md.
-
Invoke the skill directly in Claude Code by typing /deploy-check followed by an optional environment name.
The content
Pre-Deployment Check
Run all checks before deploying. Fail fast on any blocker.
Environment: $ARGUMENTS (default: production)
Current branch: !git branch --show-current
Uncommitted changes: !git status --short
Last commit: !git log --oneline -1
Package manager: ![ -f bun.lockb ] && echo "bun" || ([ -f pnpm-lock.yaml ] && echo "pnpm" || ([ -f yarn.lock ] && echo "yarn" || echo "npm"))
Step 1: Git State
Verify clean git state:
- No uncommitted changes (warn if working tree is dirty)
- Current branch is
mainor a release branch (warn if on feature branch) - Branch is up to date with remote:
git fetch origin && git rev-list HEAD..origin/main --count
If uncommitted changes exist: WARN but continue. If behind remote: BLOCK.
Step 2: Build
Run the project build:
npm run build 2>&1 || exit 1
Replace npm with the detected package manager. If the build fails: BLOCK.
Step 3: Type Check
If tsconfig.json exists:
npx tsc --noEmit 2>&1
If type errors exist: BLOCK.
Step 4: Lint
If a lint script exists in package.json:
npm run lint 2>&1
If lint errors exist: WARN (not blocking unless errors, warnings are OK).
Step 5: Tests
Run the test suite:
npm run test -- --run 2>&1 || npx vitest run 2>&1
If tests fail: BLOCK.
Step 6: Environment Variables
Check that all required env vars are set:
- Read
.env.local.exampleor.env.exampleto get the list of required variables - Check each variable exists in
.env.localor.env.production - Flag any missing variables
Verify the framework's public Supabase vars are set:
- Next (default):
NEXT_PUBLIC_SUPABASE_URL,NEXT_PUBLIC_SUPABASE_ANON_KEY - Vite exception:
VITE_SUPABASE_URL,VITE_SUPABASE_ANON_KEY
Missing env vars: BLOCK.
Step 7: Vercel Configuration
Check Vercel setup:
- Check Vercel config — Next is zero-config (no
vercel.jsonrewrite needed); Vite-exception repos needvercel.jsonwith the SPAindex.htmlrewrite - Check if
.vercel/project.jsonexists (indicatesvercel linkwas run) - Run
vercel whoami 2>/dev/nullto verify CLI login
Missing Vercel link: WARN — remind to run vercel link.
Vercel CLI not logged in: WARN — remind to run vercel login.
Step 8: Pending Migrations
If supabase/migrations/ exists:
- Check for migration files not yet applied:
supabase migration list 2>/dev/null - Check for uncommitted migration files in the directory
Unapplied migrations: WARN — remind to run supabase db push after deploy.
Step 9: Bundle Size (optional)
After build, measure the output (Next: .next/; Vite exception: dist/):
du -sh .next/ dist/ 2>/dev/null
Report total build output size. Flag if over 5MB: WARN.
Step 10: SEO & GEO Gate
Only if the project has a public content surface (skip for behind-auth-only
tools / Vite-exception SPAs with a documented exemption in CLAUDE.md).
Verify against ref/growth/seo.md and ref/growth/geo.md:
SEO:
- Sitemap in the standard form (§7): index at
/sitemap.xml, parts per page type at/sitemaps/sitemap/<segment>-<n>.xml(Next:app/sitemap.xml/route.ts+app/sitemaps/, no singleapp/sitemap.ts; Vite:scripts/generate-sitemap.mjs+ committedpublic/sitemap.xml+public/sitemaps/+ drift check); coverage tests (§7.8) present - Robots generated from code, one
Sitemap:line pointing at the index, disallows the §7.4 route categories - SEO/content routes server-rendered/SSG/ISR — not client-only
GEO:
- robots declares an explicit, correct AI-crawler policy — retrieval bots (
OAI-SearchBot,Claude-SearchBot,PerplexityBot,Googlebot) allowed; no accidental blanketDisallowfor AI bots - content pages answer-first + citability signals (sourced/dated stats, quotable claims)
- on-site entity hooks:
Organization+sameAs, named author, visibledateModified - GEO measurement wired (passive AI-referral + a defined active prompt set)
Client-only content rendering, missing sitemap/robots, or an AI-crawler policy that accidentally blocks retrieval bots on a public content product: BLOCK.
Missing answer-first structure / citability / entity hooks / measurement: WARN.
GEO structured-data types (FAQPage/QAPage), Bing/IndexNow, off-site presence: WARN (SHOULD).
/llms.txt: check ONLY for products with a public API/developer-docs surface — it is NOT a visibility signal; its absence on a marketing site is not a finding.
For a .lovable. repo: treat all GEO items as WARN (SPA limit accepted).
For a deep pass or to fix findings, run /optimize-growth optimize.
Step 11: Summary
## Deploy Check Results
Branch: <branch> (<clean/dirty>)
Remote: <up to date / N commits behind>
| Check | Status |
|------------------|---------------------|
| Build | PASS / FAIL |
| Type Check | PASS / FAIL / SKIP |
| Lint | PASS / WARN / SKIP |
| Tests | PASS / FAIL / SKIP |
| Env Vars | PASS / MISSING: ... |
| Vercel Config | PASS / WARN |
| Supabase Link | PASS / WARN / SKIP |
| Migrations | PASS / PENDING: ... |
| Bundle Size | <size> (OK / WARN) |
| SEO Gate | PASS / BLOCK / SKIP |
| GEO Gate | PASS / WARN / BLOCK / SKIP |
### Verdict
READY TO DEPLOY / BLOCKED (fix issues above first)
### Blockers
- <list of blocking issues, if any>
### Warnings
- <list of non-blocking warnings, if any>
### Deployment
Vercel auto-deploys on push to main. To trigger manually:
- Preview: `vercel`
- Production: `vercel --prod`
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