OpenAI
The best AI skills for OpenAI GPT.
OpenAI's GPT models power Codex and are available in Cursor and GitHub Copilot. They read the same open SKILL.md format as Claude.
npx alyn-cli add systematic-debugging test-driven-development frontend-designAlyn picks for OpenAI GPT
Install with npx alyn-cli add <skill> -a codex so the skill lands in the folder Codex reads.
Jesse Vincent
Superpowers
systematic-debugging
Use when encountering any bug, test failure, or unexpected behavior, before proposing fixes
Jesse Vincent
Superpowers
test-driven-development
Use when implementing any feature or bugfix, before writing implementation code
Anthropic
Skills
frontend-design
Guidance for distinctive, intentional visual design when building new UI or reshaping an existing one. Helps with aesthetic direction, typography, and making choices that don't read as…
Anthropic
Skills
Use this skill whenever the user wants to do anything with PDF files. This includes reading or extracting text/tables from PDFs, combining or merging multiple PDFs into one, splitting PDFs…
Anthropic
Skills
docx
Use this skill whenever the user wants to create, read, edit, or manipulate Word documents (.docx files) or Word templates (.dotx files). Triggers include: any mention of 'Word doc', 'word…

code-review
Review the changes since a fixed point (commit, branch, tag, or merge-base) along two axes: Standards (does the code follow this repo's documented coding standards?) and Spec (does the code…
Jesse Vincent
Superpowers
writing-plans
Use when you have a spec or requirements for a multi-step task, before touching code
blader
Humanizer
humanizer
Rewrite AI-sounding text so it reads like the writer without changing what it says. Use when editing or reviewing prose for AI tells: not-X-but-Y contrasts, one-line closers, staged…
Why skills make OpenAI GPT better
Skills are plain Markdown with optional scripts, so they work across vendors. Codex loads them from .agents/skills, and OpenAI publishes its own official pack.
Where to use OpenAI GPT with skills
Top ranked AI skills right now

code-review
Review the changes since a fixed point (commit, branch, tag, or merge-base) along two axes: Standards (does the code follow this repo's documented coding standards?) and Spec (does the code…

codebase-design
Shared vocabulary for designing deep modules. Use when the user wants to design or improve a module's interface, find deepening opportunities, decide where a seam goes, make code more…

diagnosing-bugs
Diagnosis loop for hard bugs and performance regressions. Use when the user says "diagnose"/"debug this", or reports something broken/throwing/failing/slow.

agent-self-evaluation
Use after completing any non-trivial task. The agent self-rates its output on 5 axes — accuracy, completeness, clarity, actionability, conciseness — with concrete evidence per criterion…

angular-developer
Generates Angular code and provides architectural guidance. Trigger when creating projects, components, or services, or for best practices on reactivity (signals, linkedSignal, resource)…

brand-discovery
Run a structured, resumable multi-session brand identity interview across 8 modules (purpose, positioning, audience, personality, voice, narrative, founder tension) using laddering, 5 Whys…

caveman
Terse caveman voice: answer first, fluff gone, every technical fact kept. Use for /caveman, "caveman mode", "talk like caveman", "be brief", "less tokens". Stays on until "stop caveman" or…

caveman-commit
Write a Conventional Commits message compressed to intent only. Use for "write a commit", "commit message", /commit or /caveman-commit.
OpenAI GPT FAQ
Do AI skills work with OpenAI GPT?
Yes. Skills are SKILL.md files your agent loads into the context, so they work with OpenAI GPT in Codex, Cursor, GitHub Copilot.
What are the best AI skills for OpenAI GPT?
Alyn's picks for OpenAI GPT: systematic-debugging, test-driven-development, frontend-design, pdf, docx. Install with npx alyn-cli add <skill> -a codex so the skill lands in the folder Codex reads.
Why use skills with OpenAI GPT?
Skills are plain Markdown with optional scripts, so they work across vendors. Codex loads them from .agents/skills, and OpenAI publishes its own official pack.