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emil-performance

100 / 100 · Low risk

Fine to try.

By freekmurze/dotfiles (GitHub) · design · 1,020 stars · scanned at commit 26bd6ac

Rules for making UI fast — virtualization, transition specificity, GPU compositing, preloading, lazy loading, layout-shift prevention, and keeping animation out of React renders. Use when building or reviewing UI that renders long lists, animates, loads fonts/images/video, switches themes, or feels janky or slow. Triggers on: performance, slow, janky, lag, stutter, fps, frame drops, virtualization, virtual list, infinite scroll, long list, re-render, re-render storm, transition all, will-change…

Works with any agent that supports SKILL.md skills.

What this skill can do

We found nothing in the files we read that matches our rules. That does not prove the skill is safe: see the limits of static scanning.

Install

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

if [ -e ~/.agents/skills/'emil-performance' ] || [ -L ~/.agents/skills/'emil-performance' ]; then echo 'A skill folder named emil-performance already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/freekmurze/dotfiles' "$d" && git -C "$d" checkout --quiet '26bd6ac3c4ef9afd949dc1de12d96fddc2548710' -- 'config/claude/skills/emil-performance' && mkdir -p ~/.agents/skills && cp -R "$d"/'config/claude/skills/emil-performance' ~/.agents/skills/'emil-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/'emil-performance' ~/.claude/skills/'emil-performance' (other agents: ~/.cursor/skills, ~/.copilot/skills, ~/.gemini/skills, ~/.gemini/config/skills, ~/.config/opencode/skills). Or install through the finder skill, which does both.

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