← All skills

performance

95 / 100 · Low risk

Fine to try.

By addyosmani/web-quality-skills (GitHub) · coding · 3,064 stars · scanned at commit afa8da9

Optimize web performance for faster loading and better user experience. Use when asked to "speed up my site", "optimize performance", "reduce load time", "fix slow loading", "improve page speed", or "performance audit".

Works with any agent that supports SKILL.md skills.

What this skill can do

Install

Paste this into your terminal. It downloads exactly the version we scanned, not whatever is newest.

if [ -e ~/.agents/skills/'performance' ] || [ -L ~/.agents/skills/'performance' ]; then echo 'A skill folder named performance already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/addyosmani/web-quality-skills' "$d" && git -C "$d" checkout --quiet 'afa8da942115f2961fdbfa80807ea0b232ff6c00' -- 'skills/performance' && mkdir -p ~/.agents/skills && cp -R "$d"/'skills/performance' ~/.agents/skills/'performance' && rm -rf "$d"; fi

Codex reads ~/.agents/skills directly. For Claude Code, Cursor, Copilot, Gemini CLI, Antigravity or OpenCode, also link it. For Claude Code: ln -s ~/.agents/skills/'performance' ~/.claude/skills/'performance' (other agents: ~/.cursor/skills, ~/.copilot/skills, ~/.gemini/skills, ~/.gemini/config/skills, ~/.config/opencode/skills). Or install through the finder skill, which does both.

Badge for your README

The badge for addyosmani/web-quality-skills shows the score of its lowest-scoring skill.

[![SkillTrust](https://zalavijaysinh.github.io/skilltrust/badges/addyosmani/web-quality-skills.svg)](https://zalavijaysinh.github.io/skilltrust/repos/addyosmani/web-quality-skills/)

Score history