Performance
Performance profiling and optimization
engineer-analyst
by rysweet
Analyzes technical systems and problems through engineering lens using first principles, systems thinking, design methodologies, and optimization frameworks. Provides insights on feasibility, performance, reliability, scalability, and trade-offs. Use when: System design, technical feasibility, optimization, failure analysis, performance issues. Evaluates: Requirements, constraints, trade-offs, efficiency, robustness, maintainability.
n-version-workflow
by rysweet
N-version programming for critical implementations - generates N independent solutions and selects the best through comparison
agents-project-memory
by vasilyu1983
Configure project memory files (CLAUDE.md, AGENTS.md, CODEX.md) for persistent context, coding standards, architecture decisions, and team conventions. Reference for the 4-tier memory hierarchy, cross-platform compatibility, and quick-add commands.
ask-questions-if-underspecified
by thienanblog
Clarify requirements before implementing. Do not use automatically, only when invoked explicitly.
r3f-postprocessing
by EnzeD
React Three Fiber post-processing - @react-three/postprocessing, bloom, DOF, screen effects. Use when adding visual effects, color grading, blur, glow, or creating custom screen-space shaders.
neo4j-cypher-guide
by tomasonjo
Comprehensive guide for writing modern Neo4j Cypher read queries. Essential for text2cypher MCP tools and LLMs generating Cypher queries. Covers removed/deprecated syntax, modern replacements, CALL subqueries for reads, COLLECT patterns, sorting best practices, and Quantified Path Patterns (QPP) for efficient graph traversal.
refactor-clean
by dirnbauer
Code refactoring expert specializing in clean code principles, SOLID design patterns, and modern software engineering best practices. Analyzes and refactors code to improve quality, maintainability, and performance with incremental steps and stable behavior.
supabase-postgres-best-practices
by dirnbauer
Postgres performance optimization and best practices from Supabase. Use this skill when writing, reviewing, or optimizing Postgres queries, schema designs, or database configurations.
qa-expert
by nguyenthienthanh
"QA expertise - unit testing, e2e testing, accessibility testing, performance testing, test strategies"
elicitation
by tasteray
'Psychological profiling through natural conversation using narrative identity
fast-rust
by PsiACE
Practical guidance for writing, refactoring, and reviewing fast, reliable, and maintainable Rust code.
piglet
by PsiACE
Practical Python craftsmanship guidance based on One Python Craftsman. Use when writing, refactoring, or reviewing Python code for naming, branching, data structures, functions, exceptions, loops, decorators, imports, file I/O, edge cases, and modern syntax choices. If the skills set includes friendly-python, suggest invoking it for better Python outcomes.
swift-coding-standards
by williamzujkowski
Master Swift coding standards with Apple's guidelines, protocol-oriented design, and modern concurrency patterns
patterns
by williamzujkowski
Patterns standards for patterns in Microservices environments. Covers
patterns
by williamzujkowski
Patterns standards for patterns in Architecture environments. Covers
opentrons-heater-shaker
by jkitchin
Opentrons Heater-Shaker Module - temperature control (37-95°C) with orbital mixing (200-3000 rpm) for cell culture, enzymatic reactions, and sample preparation requiring simultaneous heating and agitation
brewcode:text-optimize
by kochetkov-ma
Optimizes text and docs for LLM token efficiency. Use when - optimizing prompts, reducing tokens, compressing text, condensing verbose content. Trigger keywords - optimize, reduce tokens, compress, condense, slim, tighten, too verbose, shrink.
memory
by brobertsaz
"Save and recall information across sessions. Use when you hear 'remember this', 'save to memory', 'add to your knowledge', or similar. Stores to Claude OS knowledge bases for persistent recall."
mobile-design
by mrmps
Mobile-first design thinking and decision-making for iOS and Android apps. Touch interaction, performance patterns, platform conventions. Teaches principles, not fixed values. Use when building React Native, Flutter, or native mobile apps.
swiftui-patterns
by ahmed3elshaer
SwiftUI UI patterns, state management, navigation, animations, and performance optimization.
mobile-design
by mrmps
Mobile-first design thinking and decision-making for iOS and Android apps. Touch interaction, performance patterns, platform conventions. Teaches principles, not fixed values. Use when building React Native, Flutter, or native mobile apps.
vercel-react-best-practices
by mrmps
React and Next.js performance optimization guidelines from Vercel Engineering. This skill should be used when writing, reviewing, or refactoring React/Next.js code to ensure optimal performance patterns. Triggers on tasks involving React components, Next.js pages, data fetching, bundle optimization, or performance improvements.
ljg-xray-paper
by lijigang
"Paper X-ray. Extracts what the paper says (problem-perspective-result) and what it means for lijigang (cognitive delta cards in ASCII art). Use when user shares an arxiv link, paper URL, PDF, or asks to analyze a research paper. Usually called via ljg-xray router. Do NOT use for blog posts or non-academic articles (use ljg-xray-article instead)."
engineering-culture
by liqiongyu
"Build or refresh engineering culture and produce an Engineering Culture Operating System Pack (capability map, culture code, org↔architecture alignment, clock-speed/DevEx backlog, workflow contract, rollout + measurement). Use for engineering culture, DevOps capabilities, DevEx, clock speed, Conway's Law, and engineering principles. Category: Engineering."