Files
code-vorlage/.claude/skills/frontend/SKILL.md
T
Florian Wilde b0c4e9e9b9 refactor: rebuild template — Tailwind v4, Docker self-hosting, passkey auth
Toolchain fixes (all previously broken):
- npm run lint: next lint was removed in Next 16 -> eslint with flat config
- .eslintrc.json was ignored by ESLint 9 -> eslint.config.mjs
- npm test / test:e2e exited 1 with no tests -> passWithNoTests
- Vitest scanned tests/ and would have run Playwright specs -> scoped to src/
- Playwright targeted Mobile Safari while docs installed only chromium
- reuseExistingServer silently tested a foreign server on :3000 -> E2E_PORT
- 11 high-severity vulns -> npm audit fix
- deny rule Read(**/.env*) also blocked .env.example -> precise patterns

Stack changes:
- Tailwind v3 -> v4 (CSS-first, no tailwind.config.ts, tw-animate-css)
- shadcn regenerated for v4; 33 components -> 6 core, bundled radix-ui
- Supabase removed entirely; data layer is now chosen per project
- Vercel removed; Docker Compose self-hosting with scripts/update.sh
- Better Auth + passkey plugin as the binding auth standard
- ThemeProvider and Sonner mounted; dark mode and toasts now actually work

Workflow system:
- Sub-agents wired: /frontend, /backend, /qa delegate to .claude/agents
- Checklists folded into their SKILL.md; one file per skill
- Rules rewritten: DB-agnostic backend, passkey security, v4 frontend
- Spec language settled as German, skill instructions English
2026-08-09 00:48:50 +02:00

2.7 KiB

name, description, argument-hint, user-invocable
name description argument-hint user-invocable
frontend Build UI components with React, Next.js, Tailwind v4 and shadcn/ui. Use after architecture is designed. PROJ-X or feature-spec-path true

Frontend

You own the UI phase for one feature. You do the interview and the review with the user; the Frontend Developer sub-agent does the implementation.

1. Load context

  1. Read features/INDEX.md
  2. Read the feature spec, including its Tech Design section
  3. ls src/components/ui/ — installed shadcn components
  4. git ls-files src/components/ — existing custom components

If the spec has no Tech Design section:

"Für PROJ-X gibt es noch kein technisches Design. Führe zuerst /architecture aus — ohne Komponentenstruktur baue ich sonst am Entwurf vorbei." → Stop.

2. Clarify design

Check for a design system: cat docs/design-system.md 2>/dev/null

If it exists, follow it and do not ask about anything it already answers. Otherwise check ls design/ mockups/ 2>/dev/null, and if nothing exists, ask the user — one question at a time, each with a recommendation:

  • Visual style (modern/minimal, corporate, playful)
  • Brand colors, or Tailwind/shadcn defaults
  • Layout (sidebar, top-nav, centered)
  • Interactions beyond the basics (drag & drop, animations)

3. Set status

Update features/INDEX.md and the spec header to In Progress. Verify by re-reading.

4. Delegate implementation

Invoke the Frontend Developer sub-agent with:

  • the spec path
  • the design decisions from step 2
  • the component list from the Tech Design
  • the shadcn components already installed

Wait for its report. Do not implement in parallel yourself.

5. Review with the user

Present the sub-agent's report, then:

"Läuft unter http://localhost:3000. Schau es dir an — passt das so?"

Iterate on feedback by sending follow-up instructions to the same sub-agent, so it keeps its context.

6. Wrap up

Verify before declaring done:

  • npm run lint, npm run typecheck, npm run build pass
  • Every acceptance criterion has a UI counterpart
  • shadcn used everywhere it could be; no hand-written duplicates
  • Loading, error and empty states exist
  • Responsive at 375 / 768 / 1440px
  • Spec updated with implementation notes (written and re-read)
  • features/INDEX.md status is In Progress
  • User approved

Handoff

Does the feature need a server side (data storage, auth, APIs, cross-device sync)?

  • Yes → "Frontend steht. Nächster Schritt: /backend für APIs und Datenhaltung."
  • No → "Frontend steht. Nächster Schritt: /qa zum Testen gegen die Acceptance Criteria."

Commit

feat(PROJ-X): Implement frontend for [feature name]