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
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solution-explainerGenerate clear explanations of algorithm solutionsa5c-aiwritessound-design-foleyProvider-independent sound design and Foley direction for generated media. Use when an agent must plan, prompt, source, generate…calesthioSource MapsExpert skill for generating and consuming source maps for debugging compiled codea5c-aiwritesspaciousGenerous whitespace, consistent padding, and grid-based layouts for clean, readable, and breathing interfaces.bergsidespacy-nerspaCy NER model training and entity extraction for conversational AIa5c-aiwritesspark-optimizationOptimize Apache Spark jobs with partitioning, caching, shuffle optimization, and memory tuning. Use when improving Spark…wshobsonspec-creationFeature specification creation from codebase research. Produces requirements, acceptance criteria, architecture decisions…a5c-aiwritesspec-driven-developmentSpecification creation and management for the Pilot Shell methodology. Covers semantic search, clarifying questions, structured…a5c-aiwritesspec-execution6-phase iterative specification execution workflow covering implementation, testing, review, improvement, commit, and progress…a5c-aiwritesspecification-generationConvert requirements into structured technical specifications with architecture decisionsa5c-aiwritesspecification-writingWrite feature specifications as requirements and user stories with acceptance criteria, focusing on business value and testable…a5c-aiwritesspectron-test-setupSet up Spectron (deprecated) tests for legacy Electron application testinga5c-aiwritessphinx-docsSphinx documentation system expertise for technical and API documentation. Configure projects, autodoc for Python APIs…a5c-aiwritessponsored-newsletter-finderDiscover newsletters in a target niche relevant to your ICP, evaluate audience fit, estimate reach and CPM, and output a ranked…gooseworks-aisprite-animationA pixel / sprite-style animated explainer slide — full-bleed cream stage, bold display year, animated pixel-art mascot (e.g.…nexu-iosql-optimization-patternsTransform slow database queries into lightning-fast operations through systematic optimization, proper indexing, and query plan…sickn33sql-optimization-patternsMaster SQL query optimization, indexing strategies, and EXPLAIN analysis to dramatically improve database performance and…wshobsonsql-query-optimizerAnalyzes and optimizes SQL queries across different data warehouse platforms (Snowflake, BigQuery, Redshift, Databricks) with…a5c-aiwritessqsAWS SQS message queue service for decoupled architectures. Use when creating queues, configuring dead-letter queues, managing…itsmostafasquareGraceful, refined aesthetic with delicate typography, minimal palettes, and polished layouts that exude sophistication.bergsideSSA/IR DesignExpert skill for designing intermediate representations and implementing SSA constructiona5c-aiwritessseServer-Sent Events implementation, streaming patterns, and real-time updates.a5c-aiwritesalpaca-broker-sse-eventsConsume Alpaca Broker API real-time event streams over Server-Sent Events (SSE) — account status, journal, transfer/funding…alpacahqstability-ai-imageOperate Stability AI image generation, image-to-image, edit, control, background, and upscale APIs safely and reproducibly. Use…calesthiostable-audioUse for Stability AI Stable Audio production work: selecting Stable Audio hosted API or open-weight models, generating or editing…calesthioStakeholder CommunicationGenerate stakeholder-specific communications and presentations for product updatesa5c-aiwritesstartup-financial-modelingBuild comprehensive 3-5 year financial models with revenue projections, cost structures, cash flow analysis, and scenario…wshobsonstartup-metrics-frameworkComprehensive guide to tracking, calculating, and optimizing key performance metrics for different startup business models from…sickn33startup-time-profilerProfile and optimize application startup time for desktop applicationsa5c-aiwritesstata-style-figuresStyle every matplotlib figure like the Stata 18/19 default (stcolor) scheme — Arial embedded as TrueType, white background…kennethkhoocystate-managementSTATE.md reading, writing, and field-level updates. Provides cross-session state persistence via .planning/STATE.md with…a5c-aiwritesstate-syncState synchronization skill for delta compression and interpolation.a5c-aiwritesstatic-analysis-runnerRun static analysis tools including SonarQube, ESLint, and multi-language lintersa5c-aiwritesStatic Analysis Tools SkillIntegration with security-focused static analysis toolsa5c-aiwritesstatic-code-analyzerDeep static analysis of codebases for quality, complexity, and migration readiness assessmenta5c-aiwritessteam-publishPublish or update a game on Steam with Steamworks and SteamPipe: configure depots and packages, upload builds with steamcmd, set…gamedev-skillssteam-sdkSteamworks skill for achievements and cloud saves.a5c-aiwritessteamworks-networkingSteam P2P networking skill for lobbies and relay servers.a5c-aiwritessteering-behaviorsSteering behaviors skill for flocking, avoidance, and group movement.a5c-aiwritesstencil-convolutionExpert skill for optimized stencil and convolution pattern implementations on GPU. Design tiled stencil algorithms with halos…a5c-aiwritesstep-functionsAWS Step Functions workflow orchestration with state machines. Use when designing workflows, implementing error handling…itsmostafastill-image-retouching-finishingProvider-independent still-image post-production skill for RAW/rendered intake, nondestructive development, exposure, white…calesthiostitchClean, high-contrast enterprise design for data-driven workflows with intuitive drag-and-drop patterns and structured layouts.bergsidestitch-design-tasteUse when generating Google Stitch DESIGN.md systems for premium typography, color, layout, motion intent, and anti-generic UI…sickn33stitch-design-tasteSemantic Design System Skill for Google Stitch. Generates agent-friendly DESIGN.md files that enforce premium, anti-generic UI…LeonxlnxSTIX/TAXII Intelligence SkillSTIX/TAXII threat intelligence format and sharinga5c-aiwritesstm32-halSTMicroelectronics STM32 HAL and Low-Level driver expertisea5c-aiwritesstory-decompositionBreak technical specifications into small, implementable stories with dependency orderinga5c-aiwrites
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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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