Make an unfamiliar or undocumented repo easy to run. Use when someone cannot get a project running, when onboarding a new developer, or when asked to write a QUICKSTART, a setup/prerequisite check ("doctor") script, or a documented .env.example. Also use when setup instructions are missing, stale, or spread across a…
Analyze a GitHub repo and generate a complete launch kit — each as its own file: analysis, release notes, changelog, blog, X/Reddit/Hacker News/LinkedIn posts, and an HTML demo site, plus an SVG share card.
Build a single-file, self-contained HTML demo/landing website that showcases a GitHub repository's functionality. Use this skill whenever asked to generate a demo site, landing page, showcase page, project website, or interactive demo for a repo. Produces one portable demo.html with no build step and no external…
Create engaging, authentic LinkedIn posts like a Top Voice. Use this skill when asked to write LinkedIn content, social media posts for LinkedIn, professional thought leadership content, or help with LinkedIn engagement strategy. Triggers include requests for LinkedIn posts, professional social content, thought…
Use this skill whenever the user asks to write, draft, or create a tweet, X post, thread, quote-tweet, or reply on X (formerly Twitter). Also trigger when the user shares a topic, news item, link, or rough idea and wants it shaped into an X post. Covers all formats: single tweets, short threads, quote-tweets…
Build or transform ecommerce websites from loose company, product, or brand briefs into unconventional, brand-specific shopping experiences with original ImageGen product imagery. Use when a user asks for a crazy, wild, experimental, unconventional, anti-template, art-directed, or highly memorable online store; wants…
Find and qualify evidence-backed potential first customers, early adopters, design partners, or beta users for a startup using recent public pain and buying signals. Use when Codex needs to analyze a product URL or idea, define an ideal customer profile, research public discussions and business pages, identify…
Build a complete, polished, production-quality browser game inside a single self-contained HTML file using only vanilla HTML, CSS and JavaScript — no frameworks, no libraries, no external assets. Use this skill whenever the user asks for a game, a playable demo, a prototype, an interactive toy, or anything "inspired…
Generate high-converting landing pages as production-ready HTML with built-in design themes, copy frameworks (PAS, AIDA, BAB), CTA strategy, SEO meta, and automated conversion/speed audits. Use whenever the user wants a landing page, campaign page, lead capture page, promo page, launch page, or single-page site — or…
Audit a startup, SaaS, app, developer tool, landing page, or product before launch from a live URL, localhost page, repository, screenshots, or supplied copy. Use when Codex needs to determine what a startup appears to do, test whether its public experience is launch-ready, inspect positioning, calls to action…
Audit and revamp existing web interfaces into polished, professional, product-specific experiences while preserving behavior and working within the current frontend stack. Use for requests to improve a vibe-coded, generic, template-like, inconsistent, dated, amateur, or visibly AI-generated UI; redesign an existing…
Recreate a UI screenshot, mockup, or design image as production-quality React + TypeScript + Tailwind code with near-pixel-perfect visual fidelity. Use this skill whenever the user shares an image of an interface and wants it built, cloned, converted, or "made real" — including phrasings like "build this", "recreate…
Turn a startup, SaaS, app, developer tool, website, repository, or product idea into an evidence-backed business plan, monetization strategy, pricing architecture, editable 12-month financial model, and 90-day execution roadmap. Use when Codex needs to analyze how a startup can become a sustainable business; decide…
Build or transform lightweight realtime voice-chat apps with a talking character avatar from either a user-supplied photograph or a text description. Use when Codex is asked to create a talking avatar, photo avatar, character chatbot, roleplaying voice companion, mouth-sprite animation, or reusable OpenAI Realtime…
Measure whether Python tests detect behavior changes through diff-scoped mutation testing. Use when Codex needs to audit the strength of a pytest suite, evaluate whether tests cover changed code, investigate surviving mutants, or propose and verify targeted tests for missed behavior.