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SirCharanSirCharan/claude-code-harness/skills/docs-design/SKILL.md

docs-design

Skill0 starsChanged 5 months agoMITView on GitHub

Design guidance for documentation sites on Next.js + Tailwind + Vercel, especially Fumadocs (also Nextra/Starlight) — e.g. an API docs site, a developer SDK reference. Lightweight: it tells you what Fumadocs ships by default (sidebar, TOC, search, Shiki code blocks, theme switch) so you EXTEND rather than rebuild, plus what to customize (theme tokens, code-block polish, nav density, fonts) and the Swiss/Minimal docs look. Load alongside `design-system` (tokens, a11y). Trigger on: "docs site", "documentation", "Fumadocs", "Nextra", "API docs", "developer docs", "sidebar/TOC", or styling a docs site.

1 other project uses a version of this.

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The file

We split this skill into the rules it gives an agent

1 rule. About 0 are common, 1 is distinctive, and 0 are very specific to this project.

  • ≈0

    Common · estimate

    Many files like this have a rule of this kind.

  • ≈1

    Distinctive · estimate

    This author's own choices. Worth a look.

  • 0

    Very specific

    Tied to their project's names, files or tools. Probably skip.

  • Common
  • Distinctive
  • Very specific
  1. Distinctive:

    Not first-class in Fumadocs — handle via separate routes/branches or per-version content directories.

    line 44

≈ “Common” is an estimate: at least 1 in 5 of the 350,495 skill files we read have a rule of the same kind, not the same words. “Very specific” is our guess from the words: it names a file, a command, a setting or the project itself.

Keep what fits and drop the rest. Your version, ready for your agents.
Files
SKILL.md

Docs-Site Design (Fumadocs-first)

Pair with design-system and layout-interaction-design (sidebar/tabs/breadcrumbs nav §3, active-link

  • persistent route-group layout for Next.js). Docs live or die on scan-ability: strict type scale, generous whitespace, restrained color. Don't rebuild what the framework gives you. ✅ verified · ◐ situational.

Use Fumadocs, customize — don't rebuild ✅

Fumadocs (Next.js-native, the right pick for this stack) ships out of the box:

  • Left sidebar nav tree (collapsible desktop; mobile navbar), on-page TOC right rail, built-in search (Orama/flexsearch core), theme switcher, breadcrumbs, GitHub-link slot.
  • Code blocks via Shiki (v16, Oct 2025 defaults to the JS regex engine — works on Cloudflare Workers); DynamicCodeBlock for runtime highlighting.
  • Layout tabs/dropdowns for product sections (from meta.json root folders).

Customize via props/slots, not forks: defaultOpenLevel (sidebar expansion), collapsibility, sidebar footer/banner, inject custom JSX above the TOC or in the sidebar via components/slots, nav, themeSwitch, prefetching, tabs={false}.

Nav / density ✅

Group by section/folder; collapse deep trees by default (open level 1). Keep the TOC for in-page jumps on long pages. Aim for ≤2 levels visible at rest; let search carry deep lookups.

Search ✅

Wire the built-in search (good to large scale); only move to Algolia at large scale.

Code blocks ✅

Shiki by default — add a copy button, filename/title, line highlighting, and language tabs for multi-language. ◐ Twoslash for typed-TS hovers if relevant. Match the code theme to your token palette, not a clashing default.

Versioning ◐

Not first-class in Fumadocs — handle via separate routes/branches or per-version content directories; don't expect a built-in switcher.

Look & type ✅◐

  • Style: Swiss / International Typographic + Minimalism; Flat-Material components. Nothing decorative — color carries meaning (callout intents: note/warn/danger), not flourish.
  • Fonts: readable sans + good mono — Inter + JetBrains Mono · Geist + Geist Mono (Vercel-native, matches Next.js docs aesthetic). Body ~16px, measure ~70–75ch for docs prose (slightly wider than essays).
  • Theme tokens from design-system §3; ensure ≥4.5:1 in both light/dark (Fumadocs defaults are usually fine but verify any custom accent).

Pitfalls

Rebuilding sidebar/TOC/search Fumadocs already provides · clashing default code theme · everything expanded in the sidebar · prose measure too wide · custom accent that fails contrast in one theme.

Frameworks ◐

Fumadocs (default for this stack), Nextra v4, Starlight (Astro) are the 2026 contenders — stay on Fumadocs for Next.js + Tailwind + Vercel.

Sources

fumadocs.dev (docs layout, codeblock, v16 blog) · pkgpulse.com (Fumadocs vs Nextra vs Starlight 2026) · design-system skill (tokens/a11y/type).

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