Performance
Performance profiling and optimization
Uses and selection guide
Use these skills to examine correctness, security and runtime behavior. Prefer a workflow that explains its findings and produces reproducible checks; compare results against your project conventions and measured baselines.
长列表虚拟滚动优化方案
by TencentBlueKing
处理超过 1000 条数据的大型列表渲染时的性能优化方案，包含定高和不定高两种策略。
intelligent-cache
by dadbodgeoff
Multi-layer caching with type-specific TTLs, get-or-generate pattern, memory and database layers, and graceful invalidation without cache stampede.
caching-strategies
by dadbodgeoff
Implement multi-layer caching with Redis, in-memory, and HTTP caching. Covers cache invalidation, stampede prevention, and cache-aside patterns.
code-review
by markus41
Comprehensive code review knowledge including security, performance, accessibility, and quality standards across multiple languages and frameworks
performance-management
by pluginagentmarketplace
Master performance management, goal-setting, OKRs, reviews, feedback, and metrics for engineering teams
Lighthouse Performance Analysis
by srsubramanian
Comprehensive Lighthouse CLI performance analysis - automated audits, Core Web Vitals, opportunities, and diagnostics
Web Performance Analysis (Chrome DevTools)
by srsubramanian
Interactive web performance analysis using Chrome DevTools MCP - live profiling, network inspection, caching analysis, and real-time debugging
chrome_perf_analyzer
by srsubramanian
Analyze Chrome DevTools Performance trace JSON files. Use when the user uploads a Chrome Performance trace (.json) and asks questions like "what network calls happened between X and Y", "what took the most time", "show me long tasks", "what was slow", or any query about timing, network requests, or performance bottlenecks in the trace.
hindsight-recall
by vectorize-io
Search long-term memory for relevant context from past coding sessions using Hindsight MCP tools
react-doctor
by PostHog
Diagnose and fix React codebase health issues. Use when reviewing React code, fixing performance problems, auditing security, or improving code quality.
django-startup-time
by PostHog
Keep heavy imports off the django.setup() path that every process (web, celery, temporal, migrate, shell, CI) pays for. Use when touching AppConfig.ready(), wiring signal receivers, editing the lazy API router (posthog/api/rest_router.py or its init.py shim), deferring a heavy import, when the startup-import-budget guard fails, or when merging master into a long-lived branch that made the router lazy.
optimizing-attention-flash
by NousResearch
Optimizes transformer attention with Flash Attention for 2-4x speedup and 10-20x memory reduction. Use when training/running transformers with long sequences (>512 tokens), encountering GPU memory issues with attention, or need faster inference. Supports PyTorch native SDPA, flash-attn library, H100 FP8, and sliding window attention.
hindsight-docs
by vectorize-io
Complete Hindsight documentation for AI agents. Use this to learn about Hindsight architecture, APIs, configuration, and best practices.
fixing-motion-performance
by ibelick
Audit and fix animation performance issues including layout thrashing, compositor properties, scroll-linked motion, and blur effects. Use when animations stutter, transitions jank, or reviewing CSS/JS animation performance.
clickhouse-io
by affaan-m
ClickHouse database patterns, query optimization, analytics, and data engineering best practices for high-performance analytical workloads.
vercel-react-best-practices
by langfuse
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.
performance-review
by mastra-ai
Performance-focused code review for identifying bottlenecks and optimization opportunities
code-reviewer
by Shubhamsaboo
Thorough code review with focus on security, performance, and best practices. Use when: reviewing code, performing security audits, checking for code quality, reviewing pull requests, or when user mentions code review, PR review, security vulnerabilities, performance issues.
3d-web-experience
by sickn33
Expert in building 3D experiences for the web - Three.js, React
agent-orchestration-multi-agent-optimize
by sickn33
"Optimize multi-agent systems with coordinated profiling, workload distribution, and cost-aware orchestration. Use when improving agent performance, throughput, or reliability."
auto-perf-optimize
by microsoft
"Run agent-driven VS Code performance or memory investigations. Use when asked to launch Code OSS, automate a VS Code scenario, run the Chat memory smoke runner, capture renderer heap snapshots, take workflow screenshots, compare run summaries, or drive a repeatable scenario before heap-snapshot analysis."
cpu-profile-analysis
by microsoft
"Analyze V8/Chrome CPU profiles (.cpuprofile) and DevTools trace files (Trace-*.json). Use when: profiling performance, investigating slow functions, comparing code paths, finding bottlenecks, analyzing timeToRequest, understanding call trees from sampling profiler data, analyzing layout/paint/rendering, investigating user timing marks."
chat-perf
by microsoft
Run chat perf benchmarks and memory leak checks against the local dev build or any published VS Code version. Use when investigating chat rendering regressions, validating perf-sensitive changes to chat UI, or checking for memory leaks in the chat response pipeline.
nextjs-developer
by Jeffallan
"Use when building Next.js 14+ applications with App Router, server components, or server actions. Invoke to configure route handlers, implement middleware, set up API routes, add streaming SSR, write generateMetadata for SEO, scaffold loading.tsx/error.tsx boundaries, or deploy to Vercel. Triggers on: Next.js, Next.js 14, App Router, RSC, use server, Server Components, Server Actions, React Server Components, generateMetadata, loading.tsx, Next.js deployment, Vercel, Next.js performance."