Performance
Performance profiling and optimization
react-devtools
by piotrski
React DevTools CLI for AI agents. Use when the user asks you to debug a React or React Native app at runtime, inspect component props/state/hooks, diagnose render performance, profile re-renders, find slow components, or understand why something re-renders. Triggers include "why does this re-render", "inspect the component", "what props does X have", "profile the app", "find slow components", "debug the UI", "check component state", "the app feels slow", or any React runtime debugging task.
vercel-react-best-practices
by CloudAI-X
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.
vercel-react-best-practices
by polarsource
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.
gate-check
by Donchitos
"Validate readiness to advance between development phases. Produces a PASS/CONCERNS/FAIL verdict with specific blockers and required artifacts."
ascii-motd-profile-banner
by partme-ai
Generate ASCII-only MOTD / SSH login banner / shell profile welcome messages (short/long variants, quiet mode guidance, security notices).
gpu-kernel-optimizer
by alibaba
End-to-end GPU kernel implementation and optimization router. Use this skill to turn PyTorch logic into a high-performance kernel or to systematically optimize an existing kernel. It initializes the local knowledge base, identifies the current phase, and routes work to baseline implementation, bottleneck analysis, and profile-driven optimization sub-skills.
optimize
by whawkinsiv
"Use this skill when the user's app feels slow, the codebase feels bloated, or after significant development work. Optimizes across four dimensions: Speed (page load, API response), Code (unused files, dead code), Database (orphaned data, schema hygiene), and Dependencies (package bloat, bundle size)."
profile-report
by ClawBio
Unified personal genomic profile report — reads a PatientProfile JSON and synthesizes all skill results into a single "Your Genomic Profile" document.
learn-rule
by rohitg00
Capture a correction or lesson as a persistent learning rule with category, mistake, and correction. Use after mistakes or when the user says "remember this".
phx:learn
by oliver-kriska
Capture lessons learned after fixing a bug or receiving a correction. Updates knowledge base to prevent future mistakes.
reference-core
by angular
Explains the mental model and architecture of the code under packages/core. You MUST use this skill any time you plan to work with code in packages/core
database-optimizer
by Jeffallan
Use when investigating slow queries, analyzing execution plans, or optimizing database performance. Invoke for index design, query rewrites, configuration tuning, partitioning strategies, lock contention resolution.
optimizing-performance
by CloudAI-X
Analyzes and optimizes application performance across frontend, backend, and database layers. Use when diagnosing slowness, improving load times, optimizing queries, reducing bundle size, or when asked about performance issues.
team-polish
by Donchitos
"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."
distill-memory
by nowledge-co
Recognize breakthrough moments, blocking resolutions, and design decisions worth preserving. Detect high-value insights that save future time. Suggest distillation at valuable moments, not routine work.
visualiser-performance
by event-catalog
React Flow performance rules and review checklist for the @eventcatalog/visualiser package. Automatically applies when making changes to any file under packages/visualiser/. Use this skill to audit, review, or implement visualiser code with performance in mind.
code-review
by accomplish-ai
Review code for bugs, security issues, performance problems, and best practices. Provide actionable feedback.
rerender-memo
by TheOrcDev
Extract expensive work into memoized components with React.memo. Apply when components perform expensive computations that can be skipped when props haven't changed.
playwright-cli
by VoltAgent
Automates browser interactions for web testing, form filling, screenshots, and data extraction. Use when the user needs to navigate websites, interact with web pages, fill forms, take screenshots, test web applications, or extract information from web pages.
axiom-getting-started
by CharlesWiltgen
Use when first installing Axiom, unsure which skill to use, want an overview of available skills, or need help finding the right skill for your situation — interactive onboarding that recommends skills based on your project and current focus
axiom-display-performance
by CharlesWiltgen
Use when app runs at unexpected frame rate, stuck at 60fps on ProMotion, frame pacing issues, or configuring render loops. Covers MTKView, CADisplayLink, CAMetalDisplayLink, frame pacing, hitches, system caps.
postgres
by mfts
PostgreSQL best practices, query optimization, connection troubleshooting, and performance improvement. Load when working with Postgres databases.
funnel-analysis
by nimrodfisher
Conversion funnel analysis with drop-off investigation. Use when analyzing multi-step processes, identifying conversion bottlenecks, A/B testing funnel performance, or optimizing user journeys.
learning-log
by codewithmukesh
Auto-document insights and discoveries during development sessions. Unlike MEMORY.md (corrective rules from the self-correction-loop skill), the learning log captures organic discoveries: non-obvious bugs, undocumented architecture decisions, performance findings, workarounds, and gotchas. Stored at .claude/learning-log.md. Load this skill when Claude discovers something non-obvious, finds a workaround, uncovers an undocumented decision, or when the user asks about "learnings", "discoveries", "gotchas", "what did we learn", or "document this finding".