Atomic Atom

Atomic Design: ATOM (React Functional Components)

You are creating an ATOM: the smallest reusable UI primitive.

Inputs

• $ARGUMENTS may include a component name and a short intent.

Hard rules

1. Functional component only (no class components).
2. No business logic, no data fetching, no app state. Atoms are presentational primitives.
3. Accessibility first: correct semantics (button, label, input), keyboard support, aria-* only when necessary.
4. Composable API:
   • Prefer children/slots over many boolean props.
   • Avoid prop explosions; keep the surface area minimal.
5. Styling:
   • Support className and merge with base classes.
   • Avoid styling decisions that depend on application state.
6. TypeScript-friendly:
   • Prefer extending intrinsic element props (e.g., React.ButtonHTMLAttributes<HTMLButtonElement>).
   • Use forwardRef when wrapping DOM elements.
7. Performance:
   • Keep atoms cheap; use React.memo only if there’s a proven need (don’t add by default).

Output expectations (when generating code)

• Provide:
  1. Component.tsx (or .jsx if project is JS)
  2. Component.test.tsx (minimal: render + key interaction)
  3. Component.stories.tsx (basic variants)
• Export as a named export by default.
• Include a short usage snippet.

Recommended folder conventions

• src/components/atoms/<ComponentName>/
  • index.ts
  • <ComponentName>.tsx
  • <ComponentName>.test.tsx
  • <ComponentName>.stories.tsx

Atom checklist

• Correct semantic element
• Keyboard operable
• Accepts className
• Props extend intrinsic element props
• No app-specific dependencies

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