frontend
Skill2 starsChanged 4 months agoMITView on GitHub
When to use: React, Vue, or Angular work — component design, accessibility, performance, state management. These are minimums, not aspirations:
We split this skill into the rules it gives an agent
2 rules. 0 are common, 1 is distinctive, and 1 is very specific to this project.
0
Common
Most of the 43 edited versions we read keep these.
1
Distinctive
This author's own choices. Worth a look.
1
Very specific
Tied to their project's names, files or tools. Probably skip.
- Common
- Distinctive
- Very specific
- Very specific: line 25
Every interactive element has an accessible label (aria-label, associated <label>, or visible text)
- Distinctive: line 27
All functionality reachable via keyboard (Tab, Enter, Escape, Arrow keys)
“Common” is measured: kept by at least 6 in 10 of the 43 edited versions of this file we could read. “Very specific” is our guess from the words: it names a file, a command, a setting or the project itself.
Files
Frontend Skill
When to use: React, Vue, or Angular work — component design, accessibility, performance, state management.
Component design
- Composition over inheritance — build complex UI from small, focused components
- Single responsibility — one component, one job. If the name needs "And", split it.
- Props interface — keep it narrow. More than 5-7 props? The component is doing too much.
- Prop drilling limit — more than 2 levels deep? Use context or composition (children pattern).
- Children pattern — prefer
<Layout><Content /></Layout>over render props when possible.
Hooks best practices (React)
- Dependency arrays must be complete — ESLint rule
react-hooks/exhaustive-depsis not optional - Effects clean up — return a cleanup function for subscriptions, timers, event listeners
- Custom hooks — extract reusable stateful logic into
useXxxhooks - Never call hooks conditionally — hooks must be called in the same order every render
- Avoid
useEffectfor derived state — compute it during render instead
Accessibility floor (WCAG 2.1 AA)
These are minimums, not aspirations:
- Every interactive element has an accessible label (
aria-label, associated<label>, or visible text) - Color contrast: 4.5:1 for normal text, 3:1 for large text
- All functionality reachable via keyboard (Tab, Enter, Escape, Arrow keys)
- Focus management: focus moves logically on route change and modal open/close
- ARIA landmarks on major sections (
<main>,<nav>,<aside>) - Images: meaningful
alttext, oralt=""for decorative - Form errors announced to screen readers (
aria-liveorrole="alert")
Performance
- Memoization —
React.memo,useMemo,useCallbackonly where there's measured need. Don't prematurely optimize. - Virtualization — lists >100 items should use
react-windowor similar - Code splitting — at minimum, split at the route level (
React.lazy+Suspense) - Image optimization — responsive sizes, lazy loading below the fold, modern formats (WebP/AVIF)
- Bundle awareness — check import cost. A 500KB library for one function is not worth it.
State management
- Local state first —
useStateuntil two components need the same state - Lift when needed — move state to the nearest common ancestor
- Global for cross-cutting only — auth, theme, locale. Not form state.
- Derived state is computed, not stored — don't duplicate state that can be calculated
- Key props — must be stable and unique. Never use array index as key on dynamic lists.
Other versions49 projects use a version of this.
Word for word · 0
None found.
Edited · 0
None found.
Wrote their own version · 49
- langwatch/langwatch★ 5ksame name
- atopile/atopile★ 4ksame name
- leookun/cursor-byok★ 3.2ksame name
- theopenco/llmgateway★ 1.7ksame name
- notque/vexjoy-agent★ 443same name
- notque/claude-code-toolkit★ 442same name
- AlexPEClub/ai-coding-starter-kit★ 382same name
- OyadotAI/oya-browser★ 351same name
- speakeasy-api/gram★ 275same name
- ThePrimeagen/skills★ 234same name
39 more not listed
How matches are found. Word for word: the exact same text. Edited: shares passages with this file (“99% same” means 99% of its five-word phrases also appear here; 10% or more counts). Their own version: similar meaning, or, weakest, the same name. We can’t tell which project had it first. Projects are counted among the 200 most-starred candidates, and mentions are links to the repository we found, up to 50 per site, so both counts are a floor.
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In this repository9 other files it gives its agents.
- AGENTS.mdAGENTS.md
- CLAUDE.mdCLAUDE.md
- .cursor/rules/paw.mdcCursor rule
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