performance
From the author
Use when a page or interaction is slow for one user and the fix starts from a measurement — a failing Core Web Vital (LCP, INP, CLS), a heavy JS bundle, wasted re-renders, an over-broad client boundary: profile, attribute the cost to one phase, fix it, re-measure. NOT surviving concurrent load (that is `scaling`), NOT the slow query (that is `postgresdb`).
Install
npx skills add ericrisco/rsc-harness --skill performance -a claude-code
Installs to .claude/skills/performance/ · Each command fetches the skill straight from GitHub with the open skills CLI.
Byte-identical to the scanned commit, with the repository’s licence and a SOURCE.txt.
Want your agent to suggest skills while you type? See how to use skills from your IDE.
Safety checks on SKILL.md
- Contains hidden text (invisible characters, long comments or encoded blobs)Medium
- Ships scripts we have not reviewedLow
Why 76
aiqbench computes the trust score from public signals. It is not a security audit, so read a skill before you install it.
Similar skills
Closest to this one by what they do and when they are used.
- frontend-performancenahid-sparktales/agent-dispatcherMake a page measurably faster — pick the metric that is actually bad, measure it under stated conditions, find the real cause, apply the fix that moves that specific metric, re-measure the same way. Use when a page is called slow, when LCP, CLS, INP, TTFB, a Lighthouse score or bundle size is named, when a bundle has grown, or before claiming an optimization worked. Not for backend query or API latency, not for choosing a framework, and not a substitute for checking the page still works afterwards.Design★ 59
- performance-optimizationaddyosmani/agent-skillsOptimizes application performance across frontend, backend, queries, and databases. Use when performance requirements exist, when you suspect performance regressions, when Core Web Vitals or load times need improvement, when N+1 query patterns need fixing, or when profiling reveals bottlenecks.Design★ 111.6K
- high-perf-browserwondelai/skillsOptimize web performance through network protocols, resource loading, and browser rendering internals. Use when the user mentions "my site is slow", "Core Web Vitals", "HTTP/2 or HTTP/3", "resource hints", "network latency", "render blocking", "TCP/TLS optimization", "service worker", "Cache-Control or caching strategy", or "critical rendering path". Also trigger when diagnosing slow page loads, optimizing time to first byte, choosing between WebSocket and SSE, or reducing bundle sizes. For UI visual performance, see refactoring-ui. For font loading, see web-typography.Browser★ 2.5K
- optimizing-performanceCloudAI-X/claude-workflow-v2Analyzes 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.Data★ 1.4K
- performance-tuningNoobyGains/godmodeUse when something is reported slow, sluggish, memory-hungry or too large, when a performance budget, Core Web Vitals threshold or latency target is breached, when asked to optimise or make code faster, or when tempted to add a cache, index, async rewrite or micro-optimisation.Engineering★ 115
- web-performance-auditsecondsky/claude-skillsWeb performance audits with Core Web Vitals, bottleneck identification, optimization recommendations. Use for page load times, performance reviews, UX optimization, or encountering LCP, FID, CLS issues, resource blocking, render delays.Design★ 240
Ratings & reviews
—
no reviews
Tried this skill? Rate it to help others. Sign in
Discussion
Join the discussion. Sign in