# VYNDR — Claude Code Project Context

## What This Is
Sports betting intelligence SaaS. Real software product.
Three tiers: Free (5 scans), Analyst ($19.99 / $14.99 founder), Desk ($49.99 / $34.99 founder).

## Tech Stack
- Backend: Node.js / Express
- Database: Supabase (PostgreSQL)
- Frontend: React Native (built in Cursor)
- Data: The Odds API ($30/mo), nba_api (free, Python wrapper)
- Caching: Redis — 15min for odds, 24hr for season averages, 1hr for recent games
- Payments: Stripe

## Critical Rules — Non-Negotiable

### 1. NO CODE WITHOUT A SPEC
Every feature requires a spec file in `specs/` before any code is written.
Spec must include: endpoints, data shapes, acceptance criteria, test plan.
Get approval before building.

### 2. WSL2 HEREDOC RULE
WSL2 corrupts heredoc for files over 10 lines.
ALWAYS use Python file-writing: `python3` with triple-quoted strings.
This applies to every file creation operation.

### 3. 5 QUALITY GATES (all must pass before any feature is marked complete)
1. Unit tests pass
2. Integration tests pass
3. Acceptance criteria met (from spec)
4. PR description written
5. CLAUDE.md updated if anything new learned

### 4. BUILD-STATE.md
Update after every session. What shipped, what's next, any blockers.

### 5. BLOCKERS.md
If you hit something you cannot resolve: log it. Don't guess. Don't skip.

## Folder Structure
```
vyndr/
├── src/
│   ├── routes/        # Express route handlers
│   ├── models/        # Supabase data models
│   ├── services/      # Business logic (prop analysis, odds normalization)
│   ├── middleware/     # Auth, rate limiting, scan counting
│   └── utils/         # Helpers, formatters, validators
├── tests/             # Unit + integration tests
├── docs/              # API docs, architecture notes
├── specs/             # Feature specs (write BEFORE code)
├── build-briefs/      # Session summaries
├── CLAUDE.md          # This file
├── ROADMAP.md         # Feature roadmap with phases
├── BUILD-STATE.md     # Current build status
├── BLOCKERS.md        # Unresolved blockers
└── DECISIONS.md       # Architecture decisions log
```

## All-Day Intelligence Layer (Session 23)
Free/cheap content that keeps the platform alive when odds-api props are
empty. NONE of these spend odds-api credits:
- `/api/schedule/:sport` — cache-aside ESPN scoreboard (`scheduleService`),
  self-heals on cache miss. Per-game `hasOdds`/`hasGameLines` flags peek at
  other caches without fetching.
- `/api/gamelines/:sport` — Tank01 book-by-book lines (RAPID_API_KEY quota).
- `/api/streaks/:sport` + `/api/hotlist/:sport` — PURE engines
  (`streaksService`, `hotListService`) computed from cached game logs. NO
  API calls. Logs loaded by `rosterLogs.js` (prefetch blob, else Redis SCAN
  over `gamelogs:{sport}:{player}:{count}`). Empty roster = valid empty state.
- `?stat=` filters narrow streaks/hotlist; categories in `config/statFilters.js`
  (mirror `web/src/config/statFilters.ts`). Discovery: `/api/stats/filters/:sport`.
- Dead providers: set `status: 'dead'` in `config/providers.js` to drop a
  provider from fallback chains + configured list (ParlayAPI host is dead).

## Active Skills
- vyndr-voice (all user-facing output)
- prop-analysis (grading methodology)
- monetization-system (scan-5 pitch, tier conversion)