A code review skill across many languages and frameworks: architecture, performance, security, anti-patterns and common bugs
Skills
A skill gives an agent a ready-made ability: a tested prompt, a set of steps, sometimes files and scripts. This section collects skills for Claude Code, Cursor, Codex and other agents, each with an install command, a risk level and a plain description of who needs it and when.
Match with Foxx AI
Describe the task or paste package.json, and Foxx AI will pick matching skills, MCP servers and CLI tools.
Found: 335
A skill that cleans machine tone from text, Chinese-first: it drops filler and cliches while keeping the facts and the author's voice
Node.js skills from a Fastify co-creator: Node and Fastify practices, TypeScript, OAuth, linting and documentation
A skill that turns reference UIs into a structured design profile in JSON and generates matching UI from your content
A three-stage workflow for math modeling tasks: analysis and model choice, Python or MATLAB computation, and paper assembly in Word or LaTeX
A motion design skill for agents: timing, easing, choreography and Disney animation principles applied to UI
An agent skill that redesigns a repository README and builds a hero, diagrams and SVG assets from the project itself
A skill that builds App Store listing screenshots: finds core benefits in the code, pairs shots and lays them out at the required sizes
A skill that draws every pull request as an architecture and data-flow diagram right in the PR description, to speed up review
A Swift concurrency skill: safe work with actors and tasks, data race triage and Swift 6 migration
Callstack agent skills for React Native
Callstack Agent Skills
Callstack's React Native skills: performance, version upgrades, native app migration, testing and CI
A skill that turns a topic into a narrated 4K video: research, script, local TTS, Remotion composition and an FFmpeg mix
A collection of open Agent Skills by Huashu for content work: slides, design, data processing, video scripts and text proofreading
A loop skill: the agent generates a target screenshot, builds toward it, and uses a critic subagent to close the gap until they match
A Codex skill for safe local-state maintenance: a report-only default, backup and archive instead of deletion, log and worktree cleanup
A Claude Code skill that adapts any explanation to its audience: a child, a manager, an engineer or your parents
An agent skill that turns an arxiv paper into a minimal Python implementation, with code anchored to sections and equations and gaps flagged honestly
A skill that generates and renders Mermaid diagrams as SVG, PNG or ASCII: 15 themes and several diagram types, locally without a browser
A Material Design 3 skill for coding agents: tokens, more than 30 components, theming, adaptive layout and a compliance audit, Jetpack Compose first
A skill that changes how the agent works: instead of pressure and threats it relies on trust, sees tasks through and reports uncertainty honestly
Two skills for coding agents: wtf audits a project before shipping, better-codex keeps the agent disciplined while working on code
A skill that scans an iOS or macOS project for common App Store rejection patterns before you submit
A skill for faithful rebuilds of creative sites: mirrors the page, reverse-engineers minified code line by line and verifies with automated checks
A catalog of 28 mental-model skills for agents: diagnosis, decisions, systems, risk, strategy and idea generation
Frequently asked questions
What is a skill for an AI agent?
A skill gives an agent a ready-made ability: a tested prompt, a set of steps, sometimes files and scripts. The agent picks it up and solves the task by the defined scenario.
How do I install a skill?
Each entry has an install command for a specific agent: Claude Code, Cursor, Codex and others. Usually you copy a folder into the skills directory or install it through a plugin manager.
How is a skill different from an MCP server?
A skill gives the agent knowledge and a sequence of actions, an MCP server gives access to external data and tools over a protocol. They are often used together.