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frontend-implementation

Use when converting a design direction into maintainable production frontend code, selecting architecture within the existing stack, implementing semantics, assets, loading behavior, CSS/layout, components, and progressive enhancement.

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  • SKILL.md1.7 KB
  • agents/openai.yaml256 B

SKILL.md (original)

Review the instructions the agent will receive before you install.

Frontend Implementation

Preserve context

Inspect the repository before changing frameworks, routing, styling strategy or component foundations. Extend the existing stack unless a change has a clear user/maintenance benefit.

Build order

  1. semantic document and information hierarchy;
  2. responsive layout primitives;
  3. design-system tokens;
  4. functional states/interactions;
  5. imagery/media loading;
  6. motion/creative enhancement;
  7. QA instrumentation.

Engineering rules

  • Prefer semantic HTML and native controls before recreating them.
  • Keep component boundaries aligned to behavior/content responsibility, not every visual box.
  • Use CSS Grid/Flex and fluid values before breakpoint proliferation.
  • Reserve dimensions/aspect ratios for media to avoid layout shift.
  • Subset/preload fonts intentionally; avoid loading families/weights not used.
  • Keep server/client boundaries narrow in frameworks that support them.
  • Lazy-load noncritical animation/3D code.
  • Avoid global event listeners and per-frame React state updates for visual animation.
  • Remove dead experimentation code and unused packages before release.

Visual fidelity

Do not “fix” a difficult art direction by reverting to standard cards. If a composition is hard to implement, solve the layout constraint or explicitly negotiate the tradeoff.

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