Performance
Performance profiling and optimization
react-best-practices
by Dwsy
Comprehensive React and Next.js performance optimization guide with 40+ rules for eliminating waterfalls, optimizing bundles, and improving rendering. Use when optimizing React apps, reviewing performance, or refactoring components.
accelint-ts-performance
by gohypergiant
"Systematic JavaScript/TypeScript performance audit and optimization using V8 profiling and runtime patterns. Use when (1) Users say 'optimize performance', 'audit performance', 'this is slow', 'reduce allocations', 'improve speed', 'check performance', (2) Analyzing code for performance anti-patterns (O(n²) complexity, excessive allocations, I/O blocking, template literal waste), (3) Optimizing functions regardless of current usage context - utilities, formatters, parsers are often called in hot paths even when they appear simple, (4) Fixing V8 deoptimization (monomorphic/polymorphic issues, inline caching). Audits ALL code for anti-patterns and reports findings with expected gains. Covers loops, caching, batching, memory locality, algorithmic complexity fixes with ❌/✅ patterns."
accelint-persona-review
by gohypergiant
Evaluate Figma designs from operator persona perspectives through design critique and user experience evaluation. Use when reviewing UX for specific user roles (e.g., air-surveillance-tech, weapons-director), conducting design reviews, or evaluating operator interfaces. Analyzes cognitive load, communication patterns, pain points, and system visibility. Works with Figma MCP (desktop/URL) and Outline docs.
accelint-react-best-practices
by gohypergiant
React performance optimization and best practices. Use when writing React components, hooks, or JSX; refactoring React code; optimizing re-renders, memoization, or state management; reviewing React code for performance issues; fixing hydration mismatches; or implementing transitions, lazy initialization, or effect dependencies. Covers React 19+ features including useEffectEvent, Activity component, and ref props.
accelint-nextjs-best-practices
by gohypergiant
Next.js performance optimization and best practices. Use when writing Next.js code (App Router or Pages Router); implementing Server Components, Server Actions, or API routes; optimizing RSC serialization, data fetching, or server-side rendering; reviewing Next.js code for performance issues; fixing authentication in Server Actions; or implementing Suspense boundaries, parallel data fetching, or request deduplication.
accelint-ts-testing
by gohypergiant
Comprehensive vitest testing guidance for TypeScript projects. Use when (1) Writing new tests with AAA pattern, parameterized tests, or async/await, (2) Reviewing test code for anti-patterns like loose assertions (toBeTruthy), over-mocking, or nested describe blocks, (3) Optimizing slow test suites, (4) Implementing property-based testing with fast-check - especially for encode/decode pairs, roundtrip properties, validators, normalizers, and idempotence checks. Covers test organization, assertions, test doubles hierarchy (fakes/stubs/mocks), async testing, performance patterns, and property-based testing patterns. Trigger keywords on vitest, *.test.ts, describe, it, expect, vi.mock, fast-check, fc.property, roundtrip, idempotence.
accelint-ts-best-practices
by gohypergiant
Comprehensive TypeScript/JavaScript coding standards focusing on type safety, defensive programming, and code correctness. Use when (1) Writing or reviewing TS/JS code, (2) Fixing type errors or avoiding any/enum/null, (3) Implementing control flow, state management, or error handling, (4) Applying zero-value pattern or immutability, (5) Code review for TypeScript anti-patterns. Covers naming conventions, function design, return values, bounded iteration, input validation. For performance optimization, use accelint-ts-performance skill. For documentation, use accelint-ts-documentation skill.
vercel-react-best-practices
by quran
React and Next.js performance optimization guidelines from Vercel Engineering. This skill should
natural-chinese-protocol
by garden-cosmos
去除八股结尾：删除了公式化的废话结尾“未来依然可期”。
goal
by steveclarke
Quick goal planning for technical tasks. Compressed vision-requirements-spec-plan into a single goal.md through a brief interview (3-6 questions). For tasks bigger than ad-hoc but not needing the full feature process.
developing-with-streamlit
by streamlit
Build production-grade Streamlit apps. Used when creating, editing, debugging, or deploying Streamlit applications. Routes to specialized sub-skills for performance, layouts, design, data display, and more.
code-review-facilitator
by wedsamuel1230
Automated code review for Arduino/ESP32/RP2040 projects focusing on best practices, memory safety, and common pitfalls. Use when user wants code feedback, says "review my code", needs help improving code quality, or before finalizing a project. Generates actionable checklists and specific improvement suggestions.
tilelang-developer
by yzlnew
"Write, optimize, and debug high-performance AI compute kernels using TileLang (a Python DSL for GPU programming). Use when the user requests: (1) Writing custom GPU kernels for AI workloads (GEMM, Attention, MLA, etc.), (2) Optimizing existing TileLang code for NVIDIA, AMD, or Ascend hardware, (3) Implementing non-standard operators (like DeepSeek MLA, FlashAttention variants), (4) Debugging TileLang compilation or runtime errors, or (5) Cross-platform kernel development targeting multiple GPU vendors."
megatron-memory-estimator
by yzlnew
Estimate GPU memory usage for Megatron-based MoE (Mixture of Experts) and dense models. Use when users need to (1) estimate memory from HuggingFace model configs (DeepSeek-V3, Qwen, etc.), (2) plan GPU resource allocation for training, (3) compare different parallelism strategies (TP/PP/EP/CP), (4) determine if a model fits in available GPU memory, or (5) optimize training configurations for memory efficiency.
memory-capture
by Factory-AI
Capture and organize memories, decisions, and learnings to a memories.md file. Use when you want to save context for future sessions.
bundle-size-optimization
by aj-geddes
Reduce JavaScript and CSS bundle sizes through code splitting, tree shaking, and optimization techniques. Improve load times and overall application performance.
realign-meta-framework
by akaszubski
Production-ready Claude Code 2.0 setup for autonomous development
backend-dev
by julianromli
Comprehensive backend development workflow that orchestrates expert analysis, architecture design, implementation, and deployment using the integrated toolset. Handles everything from API design and database architecture to security implementation and DevOps automation.
designing-systems
by fusengine
Use when creating design systems, tokens, color palettes, typography scales, or theming. Covers OKLCH colors, CSS variables, Tailwind v4 @theme.
laravel-eloquent
by fusengine
Complete Eloquent ORM - models, relationships, queries, casts, observers, factories. Use when working with database models.
game-patterns
by JasonXuDeveloper
Zero-GC game patterns with JEngine using modern C# 9+. Triggers on: game loop, spawn system, wave spawner, cooldown, ability timer, damage over time, DoT, health regen, bullet pool, enemy pool, object pool pattern, projectile system, combat system, zero allocation, no GC, performance optimization
jobjectpool
by JasonXuDeveloper
JObjectPool thread-safe object pooling for Unity. Triggers on: object pool, GC optimization, reusable instances, bullet pool, enemy pool, effect pool, spawn pool, reduce garbage collection, memory optimization, pool prewarm, Rent Return pattern, lock-free pool
memory-manager
by camoa
Use after completing any phase activity - updates project_state.md, project registry, ensures files are in correct locations, maintains lean memory
openharmony-cpp
by openharmonyinsight
Expert coding guide for OpenHarmony C++ development. Use this skill when writing, refactoring, or reviewing C++ code for OpenHarmony projects. It enforces strict project-specific conventions (naming, formatting, headers) and critical security requirements (input validation, memory safety).