Top Skills for Codex CLI

Escape generic AI-generated UIs. Forces a bold, distinctive design direction before any code is written.

One skill covering every document format the category exists for — including scanned PDFs and RAG chunking — from the maintainers of the parser itself.

1,234+ skills in one bundle. Single install across AI coding assistants.

Programmatic video done right. Idiomatic Remotion patterns auto-activate when detected.

Structured multi-step development. Brainstorm → spec → plan → build → review → merge — TDD baked in.

Firebase-authored. Init, configure, and one-step deploy to Firebase Hosting / App Hosting.

Resend's own API skill: send transactional and batch email, handle inbound webhooks, and manage domains, templates, and keys.

Resend's deliverability playbook: SPF/DKIM/DMARC, spam avoidance, bounce handling, and CAN-SPAM/GDPR/CASL compliance.

Build cross-client HTML emails as React components, with a visual editor and Resend-ready rendering.

Give an agent a webhook-driven inbox with the sender-allowlist and content-filtering patterns that block prompt injection from inbound email.

The only vendor-official skill from a major diagramming product — and it emits editable .drawio files rather than a throwaway image.

1,000+ SaaS integrations as one skill. OAuth lifecycle, scoped credentials, structured actions.

Supabase done right. RLS policies, edge functions, realtime, auth — in idiomatic patterns.

Neon serverless Postgres done right — branching, pooling, and scale-to-zero, from Neon.

Open-source marketing stack for AI coding agents. SEO, content, email, ads, analytics in one bundle.

Full-stack WorkOS implementation with auth provider migration paths.

Drop-in WorkOS widgets with backend token wiring across every major framework.

Web scraping, search, and browser automation built to be agent-friendly.

Prisma migrations and queries by the book. Index-aware, migration-safe, type-correct.

Caching without the bugs. Invalidation, write-through, cache-aside, distributed locks.

Paddle's own integration playbook: ten skills for Checkout, webhooks, pricing pages, and subscription lifecycle on the merchant-of-record platform.

Twilio's official Developer Kit: 55 skills across SMS, WhatsApp, Voice, Verify, SendGrid, and compliance — plus the Twilio MCP. Public beta.

OpenAI's chart-design skill: the judgement layer that decides which chart the question actually needs before any plotting code is written.

Dashboards with source definitions and a QA step — the parts that separate a monitoring view from a wall of charts nobody trusts.

Self-contained HTML artifacts with React + shadcn/ui — no build step, just paste and run.

Extract, fill, merge. PDF manipulation with bundled scripts so Claude does not waste tokens generating them.

Sentry the right way. Source maps, releases, breadcrumbs, performance, structured tags.

Pre-handoff a11y audit that catches what design QA misses.

Stripe done right. Checkout, subscriptions, webhooks, idempotency, metered billing.

Notion API: page/database CRUD, block hierarchies, rich text, schema sync.

Shopify Storefront API: cart, checkout, metafields, customer accounts, Hydrogen patterns.

GitGuardian's own secret-detection skill — scans history, images and packages, and ships a written remediation doctrine rather than just a list of hits.

ADR authoring + design review. Trade-offs, consequences, alternatives.

Disciplined debugging loop. Reproduce, isolate, diagnose, fix.

The pre-ship checklist that catches the embarrassing stuff.

Technical writing that engineers will actually read and update.

Incident triage + comms + blameless postmortem in one harness.

System design from requirements. APIs, data, boundaries, scale.

Honest tech-debt audit with a prioritized cleanup backlog.

Layered test plan sized to the change's risk profile.

100+ accessibility and UX rules from Vercel, applied as a structural audit on your UI code.

57 React/Next.js performance rules, applied as a structural review on your code.

Security audits run by a real security firm. CodeQL + Semgrep + audit workflows.

Strip the AI tells. Multi-pass editing for content that reads opinionated, not generated.

Next.js App Router by the book. Server components, streaming, parallel routes.

Web search + 36 authoritative data sources. SEC, PubMed, ChEMBL, FRED — agent-grade research.

20 SEO + GEO skills in one bundle. Keyword research, audits, rank tracking, AI search optimization.

232+ skills across engineering, marketing, product, compliance, advisory.

TDD with red/green/refactor as a concrete TypeScript walkthrough.

32+ marketing skills in one bundle. CRO, copywriting, SEO, analytics, email, growth.

C4, deployment, sequence-of-events architecture diagrams generated from natural-language descriptions.