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TabataFit — CLAUDE.md

"Apple Fitness+ for Tabata" — Lis ce fichier EN ENTIER avant chaque session.

🎯 Vision

TabataFit est l'Apple Fitness+ du Tabata.

Une expérience premium, video-first, guidée par des coachs, qui transforme 4 minutes d'exercice en une expérience de fitness immersive.

"Workouts that work. Beautifully."

📱 Produit

Positionnement

  • Analogy : "If Apple made a Tabata app"
  • Focus : Tabata/HIIT uniquement (pas multi-activité)
  • Durée : 4-20 min (format Tabata)
  • Différenciateur : Video-led + Coaching audio + Timer intelligent

Stack Technique

Domaine Solution
Framework Expo SDK 52 (managed)
Navigation Expo Router v3
State Zustand + AsyncStorage
Video expo-av → HLS streaming
Audio expo-av (coaching + music)
Animations React Native Animated
Payments RevenueCat
Analytics PostHog

📚 Documentation

Document Description
TabataFit_PRD_v2.0.md Product Requirements — features, roadmap
TabataFit_PDD_v2.0.md Product Design — screens, UX, flows
TabataFit_BDSD_v2.0.md Brand Design — colors, typography, style

TOUJOURS lire ces documents avant de développer.

🏗️ Architecture

src/
  features/
    home/           # Home tab - For You, Continue, Collections
    workouts/       # Workouts tab - Categories, workout list
    player/         # Active workout - Video, timer, stats
    activity/       # Activity tab - Stats, trends, calendar
    browse/         # Browse tab - Filters, trainers
    profile/        # Profile tab - Settings, achievements
  shared/
    components/     # Button, Card, VideoPlayer, etc.
    hooks/          # useTimer, useVideo, useHaptics
    utils/          # formatTime, etc.
    constants/      # colors, typography, spacing
  app/              # Expo Router routes
    (tabs)/
      index.tsx     # Home
      workouts.tsx  # Workouts
      activity.tsx  # Activity
      browse.tsx    # Browse
      profile.tsx   # Profile
    player/
      [id].tsx      # Workout player

🎨 Design System

Couleurs Principales

BACKGROUND: '#000000'    // Pure black
SURFACE: '#1C1C1E'       // Charcoal
BRAND: '#FF6B35'         // Flame orange
REST: '#5AC8FA'          // Ice blue
SUCCESS: '#30D158'       // Energy green

Phase Colors (Critique)

PREP: '#FF9500'    // Orange-yellow
WORK: '#FF6B35'    // Flame orange
REST: '#5AC8FA'    // Ice blue
COMPLETE: '#30D158' // Green

Typography

  • Font: Inter (Google Fonts)
  • Timer: 96px, Black weight
  • Titles: 34px/28px/22px
  • Body: 17px

📋 Priorités Développement

Phase 1 — MVP (Semaines 1-4)

  1. ✅ Design system setup
  2. 🔲 Home tab (Featured, Continue Watching)
  3. 🔲 Workouts tab (Categories)
  4. 🔲 Pre-workout detail screen
  5. 🔲 Video player avec timer overlay
  6. 🔲 Workout complete screen
  7. 🔲 20 workouts (mock data)

Phase 2 — Core (Semaines 5-8)

  1. 🔲 Activity tab (Stats, Calendar)
  2. 🔲 Browse tab (Filters, Trainers)
  3. 🔲 Profile tab (Settings)
  4. 🔲 Apple Watch integration
  5. 🔲 50 workouts total

Phase 3 — Premium (Semaines 9-12)

  1. 🔲 Offline downloads
  2. 🔲 Burn Bar
  3. 🔲 Subscription system
  4. 🔲 Achievements
  5. 🔲 100+ workouts

🧪 Test Environment

Expo Go sur device physique — pas de simulateur.

  1. npx expo start
  2. Scanner le QR code avec Expo Go
  3. Même réseau Wi-Fi requis

📝 Règles de Code

  1. Un fichier = une responsabilité
  2. Toute logique métier dans les hooks
  3. Components = JSX uniquement
  4. TypeScript strict — pas de any
  5. Styles avec StyleSheet.create()
  6. Dark mode only — pas de light mode

🎬 Contenu Video

Format Workout Video

  • Resolution: 1080p minimum
  • Duration: Match workout duration
  • Structure:
    • Intro (5s): Trainer greeting
    • Prep (3s): 3-2-1 countdown
    • Work (20s): Exercise demonstration
    • Rest (10s): Recovery, next exercise preview
    • Repeat for each round
    • Outro (5s): Celebration, trainer sign-off

Trainers (5 au launch)

  1. Emma — Energy queen, beginner-friendly
  2. Jake — Strength focus
  3. Mia — Form perfectionist
  4. Alex — Cardio beast
  5. Sofia — Chill but effective

💰 Monetization

Free Tier

  • 3 workouts free forever
  • Basic stats
  • Ads between workouts

Premium ($6.99/mo or $49.99/yr)

  • Unlimited workouts
  • Offline downloads
  • Apple Watch integration
  • Advanced stats
  • No ads
  • Family Sharing

🚀 Commands

Use rtk (token-optimized CLI proxy) for all non-interactive commands.

npx expo start              # Development (interactive, no rtk)
npx expo start --tunnel     # If network issues
npx expo start --clear      # Clear cache
rtk tsc --noEmit            # Type check (grouped errors)
eas build --profile dev     # Dev build

📖 Comment Utiliser les Skills

Voir .claude/skills/ pour les guides spécialisés.

Document updated: February 18, 2026 Version: 2.0 Project: TabataFit — Apple Fitness+ for Tabata

GitNexus — Code Intelligence

This project is indexed by GitNexus as tabatago (3362 symbols, 9407 relationships, 129 execution flows). Use the GitNexus MCP tools to understand code, assess impact, and navigate safely.

If any GitNexus tool warns the index is stale, run npx gitnexus analyze in terminal first.

Always Do

  • MUST run impact analysis before editing any symbol. Before modifying a function, class, or method, run gitnexus_impact({target: "symbolName", direction: "upstream"}) and report the blast radius (direct callers, affected processes, risk level) to the user.
  • MUST run gitnexus_detect_changes() before committing to verify your changes only affect expected symbols and execution flows.
  • MUST warn the user if impact analysis returns HIGH or CRITICAL risk before proceeding with edits.
  • When exploring unfamiliar code, use gitnexus_query({query: "concept"}) to find execution flows instead of grepping. It returns process-grouped results ranked by relevance.
  • When you need full context on a specific symbol — callers, callees, which execution flows it participates in — use gitnexus_context({name: "symbolName"}).

Never Do

  • NEVER edit a function, class, or method without first running gitnexus_impact on it.
  • NEVER ignore HIGH or CRITICAL risk warnings from impact analysis.
  • NEVER rename symbols with find-and-replace — use gitnexus_rename which understands the call graph.
  • NEVER commit changes without running gitnexus_detect_changes() to check affected scope.

Resources

Resource Use for
gitnexus://repo/tabatago/context Codebase overview, check index freshness
gitnexus://repo/tabatago/clusters All functional areas
gitnexus://repo/tabatago/processes All execution flows
gitnexus://repo/tabatago/process/{name} Step-by-step execution trace

CLI

Task Read this skill file
Understand architecture / "How does X work?" .claude/skills/gitnexus/gitnexus-exploring/SKILL.md
Blast radius / "What breaks if I change X?" .claude/skills/gitnexus/gitnexus-impact-analysis/SKILL.md
Trace bugs / "Why is X failing?" .claude/skills/gitnexus/gitnexus-debugging/SKILL.md
Rename / extract / split / refactor .claude/skills/gitnexus/gitnexus-refactoring/SKILL.md
Tools, resources, schema reference .claude/skills/gitnexus/gitnexus-guide/SKILL.md
Index, status, clean, wiki CLI commands .claude/skills/gitnexus/gitnexus-cli/SKILL.md
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