Codewalkers/.planning/phases/16-frontend-scaffold/16-01-SUMMARY.md

phase: 16-frontend-scaffold plan: 01 subsystem: ui tags: [vite, react, typescript, tailwindcss, shadcn-ui, postcss] # Dependency graph requires: - phase: 15-frontend-wireframes provides: UI design wireframes for dashboard, detail, and inbox screens provides: - Vite + React + TypeScript project at packages/web/ - Tailwind CSS with shadcn/ui theming and cn() utility - Path alias @/ for clean imports - Dev server with tRPC proxy to backend - npm workspaces linking packages/web affects: [16-frontend-scaffold remaining plans, 17-initiative-dashboard, 18-initiative-detail, 19-agent-inbox] # Tech tracking tech-stack: added: [vite, react, react-dom, tailwindcss, postcss, autoprefixer, shadcn-ui, class-variance-authority, clsx, tailwind-merge, lucide-react, tailwindcss-animate, @tailwindcss/typography] patterns: [npm workspaces monorepo, @/ path alias convention, shadcn/ui CSS variable theming] key-files: created: [packages/web/package.json, packages/web/vite.config.ts, packages/web/tsconfig.json, packages/web/tsconfig.app.json, packages/web/index.html, packages/web/src/main.tsx, packages/web/src/App.tsx, packages/web/src/index.css, packages/web/postcss.config.js, packages/web/tailwind.config.ts, packages/web/components.json, packages/web/src/lib/utils.ts] modified: [package.json, package-lock.json] key-decisions: - "16-01: CSS import added to main.tsx (not in original Task 1 — required for Tailwind output)" - "16-01: App.tsx uses cn() from @/lib/utils to verify both path alias and Tailwind integration in one shot" patterns-established: - "@/ path alias: all imports from src/ use @/ prefix (shadcn convention)" - "shadcn/ui CSS variables: HSL-based theming with light/dark mode via .dark class" # Metrics duration: 3min completed: 2026-02-04

Phase 16 Plan 01: Vite + React + Tailwind + shadcn/ui Summary

Vite 6 + React 19 project with Tailwind CSS v3 theming and shadcn/ui component foundation in packages/web/

Performance

• Duration: 3 min
• Started: 2026-02-04T17:55:00Z
• Completed: 2026-02-04T18:02:00Z
• Tasks: 2
• Files modified: 14

Accomplishments

• Vite + React + TypeScript project scaffolded in packages/web/ with dev server and tRPC proxy
• Tailwind CSS v3 configured with PostCSS, autoprefixer, typography, and animate plugins
• shadcn/ui theming with CSS custom properties (light + dark mode), components.json, and cn() utility
• Path alias @/ configured in both vite.config.ts and tsconfig.app.json
• npm workspaces configured at root linking packages/web

Task Commits

Each task was committed atomically:

1. Task 1: Create Vite + React + TypeScript project - 99348e0 (feat)
2. Task 2: Configure Tailwind CSS and shadcn/ui - bb468e0 (feat)

Files Created/Modified

• packages/web/package.json - Web package with React, Tailwind, shadcn deps
• packages/web/vite.config.ts - Vite config with React plugin, @/ alias, tRPC proxy
• packages/web/tsconfig.json - Root TS config extending tsconfig.app.json
• packages/web/tsconfig.app.json - App TS config with @/ path mapping
• packages/web/index.html - Vite entry HTML
• packages/web/src/main.tsx - React root mount with CSS import
• packages/web/src/App.tsx - Minimal component using cn() and Tailwind classes
• packages/web/src/index.css - Tailwind directives + shadcn CSS variables (light/dark)
• packages/web/postcss.config.js - PostCSS with tailwindcss and autoprefixer
• packages/web/tailwind.config.ts - Tailwind config with shadcn color system and plugins
• packages/web/components.json - shadcn/ui configuration
• packages/web/src/lib/utils.ts - cn() utility combining clsx + tailwind-merge
• package.json - Added workspaces and dev:web script
• package-lock.json - Updated lockfile

Decisions Made

• CSS import added to main.tsx during Task 2 (was missing from Task 1, required for Tailwind output in build)
• App.tsx uses cn() from @/lib/utils to verify both path alias resolution and Tailwind integration simultaneously

Deviations from Plan

Auto-fixed Issues

1. [Rule 3 - Blocking] Added CSS import to main.tsx

• Found during: Task 2 verification (build had no CSS output)
• Issue: main.tsx did not import index.css, so Tailwind directives were never processed and no CSS appeared in build output
• Fix: Added import "./index.css" to main.tsx
• Files modified: packages/web/src/main.tsx
• Verification: Vite build now outputs CSS file with Tailwind resets and utility classes
• Committed in: bb468e0 (Task 2 commit)

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Total deviations: 1 auto-fixed (1 blocking) Impact on plan: Essential fix for Tailwind to function. No scope creep.

Issues Encountered

None

User Setup Required

None - no external service configuration required.

Next Phase Readiness

• Frontend scaffold with Tailwind + shadcn/ui ready for component development
• Next plan 16-02 (Shared Types Package) already completed
• Ready for 16-03 (tRPC Client Wiring)

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Phase: 16-frontend-scaffold Completed: 2026-02-04