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Found 585 Skills
Review web application code for bugs, security issues, performance problems, and stack-specific anti-patterns. Use this skill whenever the user wants to review code, debug a production issue, investigate a build failure, audit security, or check a PR before merging. Triggers on code review, review my code, debug, build error, broken, not working, why is X failing, check this code, security check, PR review, audit code, refactor. Also triggers when investigating 4xx or 5xx errors, deploy failures, environment variable issues, and CMS integration problems.
Production-ready UI motion system for React/Next.js. Use when implementing animations, transitions, or motion patterns.
Analyze a software codebase for algorithmic complexity and performance hotspots, then propose or implement safe optimizations without breaking behavior. Use when Codex is asked to scan many files, find inefficient loops, nested iteration, repeated scans, costly rendering/recomputation, N+1 queries, avoidable O(n^2) or O(n) operations, or reduce complexity such as O(n^2) to O(n log n) / O(n), while preserving tests, APIs, outputs, and maintainability.
Orchestrate the polish team: coordinates performance-analyst, technical-artist, sound-designer, and qa-tester to optimize, polish, and harden a feature or area for release quality.
Provides comprehensive code review covering 6 focused aspects - architecture & design, code quality, security & dependencies, performance & scalability, testing coverage, and documentation & API design. Use this skill for deep analysis with actionable feedback after significant code changes.
Build 2D browser games with Phaser 3 (JS/TS): scenes (Boot/Menu/Game/UI), sprites/animations, input, Arcade/Matter physics, tilemaps (Tiled), asset loading, and performance patterns. Use for prompts like 'Phaser scene', 'Arcade physics', 'tilemap', 'Phaser 3 game architecture'.
Data visualization with Recharts 3.x including responsive charts, custom tooltips, animations, and accessibility for React applications. Use when building charts or dashboards with Recharts.
Master Julia 1.10+ with modern features, performance optimization, multiple dispatch, and production-ready practices. Expert in the Julia ecosystem including package management, scientific computing, and high-performance numerical code. Use PROACTIVELY for Julia development, optimization, or advanced Julia patterns.
Write high-performance JIT compilers and interpreters in the style of Mike Pall, creator of LuaJIT. Emphasizes trace-based compilation, aggressive optimization, and understanding CPU microarchitecture. Use when building JITs, interpreters, or any code where every cycle counts.
Guide on React patterns, performance optimization, and code quality for Epic Stack
Create efficient data pipelines with tf.data
React Native best practices expert. PROACTIVELY use when working with React Native, mobile apps, Expo. Triggers: react-native, expo, mobile, iOS, Android, NativeWind