One search for your own team's files and the public ecosystem. See how real projects write their agent instructions, and bring the good ideas home.
Files you open will collect here, so you can find them again.
Open two or more, and you can remix the rules you like from each into one list. Kept in this browser only.
xfstudioSkillxfstudio/skills/algolia-search/SKILL.md
Expert patterns for Algolia search implementation, indexing strategies, React InstantSearch, and relevance tuning Use when: adding search to, algolia, instantsearch, search api, search functionality.
xfstudioSkillxfstudio/skills/algorithmic-art/SKILL.md
Creating algorithmic art using p5.js with seeded randomness and interactive parameter exploration. Use this when users request creating art using code, generative art, algorithmic art, flow fields, or particle systems. Create original algorithmic art rather than copying existing artists' work to avoid copyright violations.
Cooling2 mentions in 2 weeks
162 projects use a version of this
Often used withacademy-guideslack-gif-creatorcanvas-design
xfstudioSkillxfstudio/skills/analytics-tracking/SKILL.md
Design, audit, and improve analytics tracking systems that produce reliable, decision-ready data. Use when the user wants to set up, fix, or evaluate analytics tracking (GA4, GTM, product analytics, events, conversions, UTMs). This skill focuses on measurement strategy, signal quality, and validation— not just firing events.
xfstudioSkillxfstudio/skills/angular-best-practices/SKILL.md
Angular performance optimization and best practices guide. Use when writing, reviewing, or refactoring Angular code for optimal performance, bundle size, and rendering efficiency.
xfstudioSkillxfstudio/skills/angular-migration/SKILL.md
Migrate from AngularJS to Angular using hybrid mode, incremental component rewriting, and dependency injection updates. Use when upgrading AngularJS applications, planning framework migrations, or modernizing legacy Angular code.
xfstudioSkillxfstudio/skills/angular/SKILL.md
Modern Angular (v20+) expert with deep knowledge of Signals, Standalone Components, Zoneless applications, SSR/Hydration, and reactive patterns. Use PROACTIVELY for Angular development, component architecture, state management, performance optimization, and migration to modern patterns.
xfstudioSkillxfstudio/skills/angular-state-management/SKILL.md
Master modern Angular state management with Signals, NgRx, and RxJS. Use when setting up global state, managing component stores, choosing between state solutions, or migrating from legacy patterns.
xfstudioSkillxfstudio/skills/angular-ui-patterns/SKILL.md
Modern Angular UI patterns for loading states, error handling, and data display. Use when building UI components, handling async data, or managing component states.
xfstudioSkillxfstudio/skills/anti-reversing-techniques/SKILL.md
Understand anti-reversing, obfuscation, and protection techniques encountered during software analysis. Use when analyzing protected binaries, bypassing anti-debugging for authorized analysis, or understanding software protection mechanisms.
xfstudioSkillxfstudio/skills/api-design-principles/SKILL.md
Master REST and GraphQL API design principles to build intuitive, scalable, and maintainable APIs that delight developers. Use when designing new APIs, reviewing API specifications, or establishing API design standards.
Often used withpython-performance-optimization
xfstudioSkillxfstudio/skills/api-documentation-generator/SKILL.md
Generate comprehensive, developer-friendly API documentation from code, including endpoints, parameters, examples, and best practices
xfstudioSkillxfstudio/skills/api-documenter/SKILL.md
Master API documentation with OpenAPI 3.1, AI-powered tools, and
xfstudioSkillxfstudio/skills/api-fuzzing-bug-bounty/SKILL.md
This skill should be used when the user asks to "test API security", "fuzz APIs", "find IDOR vulnerabilities", "test REST API", "test GraphQL", "API penetration testing", "bug bounty API testing", or needs guidance on API security assessment techniques.
xfstudioSkillxfstudio/skills/api-patterns/SKILL.md
API design principles and decision-making. REST vs GraphQL vs tRPC selection, response formats, versioning, pagination.
Often used withintelligent-routingweb-design-guidelines
xfstudioReads credentialsSkillxfstudio/skills/api-security-best-practices/SKILL.md
Implement secure API design patterns including authentication, authorization, input validation, rate limiting, and protection against common API vulnerabilities
xfstudioSkillxfstudio/skills/api-testing-observability-api-mock/SKILL.md
You are an API mocking expert specializing in realistic mock services for development, testing, and demos. Design mocks that simulate real API behavior and enable parallel development.
xfstudioSkillxfstudio/skills/app-builder/SKILL.md
Main application building orchestrator. Creates full-stack applications from natural language requests. Determines project type, selects tech stack, coordinates agents.
xfstudioSkillxfstudio/skills/application-performance-performance-optimization/SKILL.md
Optimize end-to-end application performance with profiling, observability, and backend/frontend tuning. Use when coordinating performance optimization across the stack.
xfstudioSkillxfstudio/skills/app-store-optimization/SKILL.md
Complete App Store Optimization (ASO) toolkit for researching, optimizing, and tracking mobile app performance on Apple App Store and Google Play Store
xfstudioSkillxfstudio/skills/architect-review/SKILL.md
Master software architect specializing in modern architecture
Plain text files in a repository that tell a coding agent how the project works: commands to run, conventions to follow and things to avoid. CLAUDE.md, AGENTS.md, cursor rules and skills are the common kinds.
CLAUDE.md is read by Claude Code. AGENTS.md is an open format that Codex, Cursor and other agents read. Many projects keep one and point the other at it.
A folder with a SKILL.md that describes one capability, such as filling PDFs or reviewing code. The agent loads it only when the task calls for it.
Your agents already can, over MCP, limited to the files you're allowed to read. Searching them from this page is coming.
