Agent skills

Skills for codex

Read straight from the source repositories, not from submitted listings. Every skill shows what it does, what is inside, where it came from — and whether attention around its source is actually growing.

Toolclaude-code 29,140codex 4,755cursor 3,111copilot 976windsurf 55cline 34
CategoryWorkflow & Productivity 4,979AI & Agents 3,037Data & Analytics 2,345Code Review & Quality 1,376Backend & API 1,244Security 1,194Design & Presentation 1,154Documentation 965Content & Marketing 916Testing & QA 777DevOps & Cloud 576Databases 550Frontend 469Business & Finance 328Media & Video 257Other 9,833
9,699 found
2,6892,736 · page 57 / 203
argparse-scaffolderGenerate argparse-based Python CLI applications with subparsers, type converters, and standard library patterns. Creates…a5c-aiwritesargument-validator-generatorGenerate argument validation logic with type coercion, constraints, custom validators, and helpful error messages for CLI…a5c-aiwritesariaWAI-ARIA implementation, roles, states, and properties.a5c-aiwritesarize-observabilityArize AI skill for production ML monitoring, embedding drift, and performance analysis.a5c-aiwritesarm-cortex-mDeep expertise in ARM Cortex-M architecture and peripheralsa5c-aiwritesartisticHigh-contrast, expressive style with creative typography and bold color choices for visually striking interfaces.bergsideassemblyai-transcriptionUse this skill when an agent needs AssemblyAI for speech-to-text or speech-understanding work in media production, including…calesthioasset-continuity-managementProvider-independent asset continuity and version management for generated-media production. Use when an agent must track…calesthioasset-optimizationAsset optimization skill for mesh and texture budgets.a5c-aiwritesassimilate-popular-workflowsThis skill should be used when the user asks to "find skills in the wild", "assimilate popular workflows", "discover SKILL.md…a5c-aiAST ManipulationExpert skill for abstract syntax tree design, traversal, transformation, and manipulation patternsa5c-aiwritesastarA* pathfinding skill for heuristics and optimization.a5c-aiwritesasync-python-patternsComprehensive guidance for implementing asynchronous Python applications using asyncio, concurrent programming patterns, and…sickn33async-python-patternsMaster Python asyncio, concurrent programming, and async/await patterns for high-performance applications. Use when building…wshobsonasyncapi-docsAsyncAPI specification handling for event-driven API documentation. Parse, validate, and generate documentation for message-based…a5c-aiwritesasyncopenai-concurrency-httpx-poolRaise real concurrency in asyncio LLM batch scorers built on the OpenAI SDK (AsyncOpenAI, including OpenAI-compatible providers…kennethkhoocyat-reviewReview code changes for bugs, regressions, convention violations, and high-value cleanup opportunities. Use for diffs, commit…kairyouat-simplifyRefactor changed code to reduce duplication, complexity, and wasted work. Use for diffs, commit ranges, PRs, paths, staged…kairyouatcoder-clientInterface with AtCoder for Japanese competitive programming contestsa5c-aiwritesattack-tree-constructionBuild comprehensive attack trees to visualize threat paths. Use when mapping attack scenarios, identifying defense gaps, or…sickn33attack-tree-constructionBuild comprehensive attack trees to visualize threat paths. Use when mapping attack scenarios, identifying defense gaps, or…wshobsonaudio-designImplement game audio practice — bus/mixer architecture and gain in decibels, ducking (sidechain), adaptive/dynamic music via…gamedev-skillsaudio-dspAudio DSP skill for filters and real-time processing.a5c-aiwritesaudio-jingleAudio generation skill — jingles, beds, voiceover, and sound effects. Routes music requests to Suno V5 / Udio / Lyria, speech to…nexu-ioaudio-reactive-video-compositionProvider-independent production guidance for translating measured audio features into deterministic video timing and motion. Use…calesthioaudiobook-productionProduce full-length audiobooks and long-form narration with generative voice tools. Use when the task is to turn a manuscript or…calesthioaudioshake-stem-separationOperate AudioShake's cloud source-separation service (developer.audioshake.ai) to split a recording into stems. Use when a task…calesthioauth-implementation-patternsBuild secure, scalable authentication and authorization systems using industry-standard patterns and modern best practices.sickn33auth-implementation-patternsMaster authentication and authorization patterns including JWT, OAuth2, session management, and RBAC to build secure, scalable…wshobsonauthentication-migratorMigrate authentication systems with credential migration, OAuth2/OIDC setup, and identity provider integrationa5c-aiwritesautogen-setupMicrosoft AutoGen multi-agent configuration for conversational AI systemsa5c-aiwritesavalonia-ui-setupSet up Avalonia UI project with cross-platform XAML for Windows, macOS, and Linuxa5c-aiwritesavatar-spokesperson-productionProvider-independent production workflow for AI avatar spokesperson videos, including presenter briefs, consent and likeness…calesthioaws-amplifyAWS Amplify deployment, hosting, and backend resources.a5c-aiwritesaws-cloudAWS-specific infrastructure and services expertise for cloud operations and architecturea5c-aiwritesaws-penetration-testingProvide comprehensive techniques for penetration testing AWS cloud environments. Covers IAM enumeration, privilege escalation…sickn33aws-security-scannerAWS security configuration scanning and hardening using Prowler, Security Hub, and AWS Configa5c-aiwritesaxe-accessibilityDeep integration with axe-core for automated accessibility testing. Execute accessibility scans, interpret WCAG violations…a5c-aiwritesaxi-protocolExpert skill for AMBA AXI protocol implementation and verification in FPGA designsa5c-aiwritesazure-cloudAzure-specific infrastructure and services expertise for cloud operations and architecturea5c-aiwritesazure-security-scannerAzure security configuration scanning and hardening using Azure Security Center, Azure Policy, and ScoutSuitea5c-aiwritesazure-speechUse Microsoft Azure Speech in Foundry Tools for media-production speech workflows: speech-to-text, fast and batch transcription…calesthioBackstopJS Visual TestingBackstopJS visual regression testing for self-hosted visual comparisona5c-aiwritesalpaca-trading-backtestExecute deterministic, reproducible historical backtests from a start date, end date, and strategy concept using the Alpaca CLI…alpacahqbacktesting-frameworksBuild robust, production-grade backtesting systems that avoid common pitfalls and produce reliable strategy performance estimates.sickn33backtesting-frameworksBuild robust backtesting systems for trading strategies with proper handling of look-ahead bias, survivorship bias, and…wshobsonbash-defensive-patternsMaster defensive Bash programming techniques for production-grade scripts. Use when writing robust shell scripts, CI/CD…sickn33bash-defensive-patternsMaster defensive Bash programming techniques for production-grade scripts. Use when writing robust shell scripts, CI/CD…wshobson
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How the catalog works
What is an agent skill?

A folder with a SKILL.md inside — instructions, and often scripts and assets, that an AI agent loads when the task matches. Claude Code, Codex, Cursor and Copilot all read the same format, so one skill usually works across them.

Where does this catalog come from?

We read 660 source repositories straight from their file trees rather than from submitted listings — what you see is what is actually published. 98 repositories were rejected because they advertise skills but contain none: link lists, not folders.

Why is there no install counter?

Because install counts live in the registry that serves `npx skills add`, and that is not ours — publishing a number we cannot verify would be worse than showing none. Instead we show where a skill comes from and whether attention around its source is actually growing, measured from our own weekly snapshots.

Do you deduplicate?

Yes, and it matters more than expected. Aggregator repositories republish the same skill in several places — one source carried 6,317 SKILL.md files for 2,001 actual skills. We collapse by folder name and keep the canonical copy, so the catalog counts things, not copies.

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