# CLAUDE.md

This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.

## Project Overview

Vibe Invest is a Rust algorithmic trading bot using the Alpaca paper trading API. It executes a hybrid momentum + mean-reversion strategy across 50 tech/financial stocks. It has two execution modes: live paper trading and historical backtesting, plus a web dashboard.

## Build & Run Commands

```bash
# Build
cargo build --release

# Run live paper trading (requires .env with ALPACA_API_KEY and ALPACA_SECRET_KEY)
cargo run --release
cargo run --release -- --timeframe hourly

# Run backtesting
cargo run --release -- --backtest --years 3
cargo run --release -- --backtest --years 5 --capital 50000
cargo run --release -- --backtest --years 1 --months 6 --timeframe hourly

# Lint and format (available via nix flake)
cargo clippy
cargo fmt
```

There are no tests currently in the project.

## Architecture

```
main.rs          CLI parsing (clap), logging setup, mode routing
├── bot.rs       Live trading loop: market hours detection, per-symbol analysis,
│                order execution, position tracking (JSON persistence)
├── backtester.rs  Historical simulation: processes bars sequentially, tracks
│                  positions, calculates metrics (CAGR, Sharpe, Sortino, drawdown)
├── alpaca.rs    Alpaca REST API client with rate limiting (200 req/min via governor)
├── indicators.rs  Technical indicators: EMA, SMA, RSI, MACD, ADX, ATR,
│                  Bollinger Bands, ROC. Signal scoring algorithm in generate_signal()
├── dashboard.rs   Axum web server (default port 5000) with Chart.js frontend
├── config.rs    Strategy parameters, stock universe (50 symbols), risk limits
├── types.rs     Domain types: Signal, TradeSignal, Trade, BacktestResult, Bar, etc.
└── paths.rs     XDG-compliant file paths (~/.local/share/invest-bot/)
```

**Key data flow:** Both bot.rs and backtester.rs call `indicators::generate_signal()` which scores multiple indicators into a composite buy/sell signal. The bot executes via alpaca.rs; the backtester simulates internally.

## Strategy Parameters (config.rs)

- Hourly mode scales all indicator periods by 7x
- Risk: max 22% position size, 2.5% stop-loss, 40% take-profit, trailing stop at 7% after 12% gain
- Signal thresholds: StrongBuy ≥ 6.0, Buy ≥ 3.5, Sell ≤ -3.5, StrongSell ≤ -6.0
- Backtester restricts to top 4 momentum stocks; live mode does not

## Environment

- Nix flake provides dev tools: rustc, cargo, clippy, rustfmt, rust-analyzer, cargo-watch
- `.env` file required: `ALPACA_API_KEY`, `ALPACA_SECRET_KEY`, optional `DASHBOARD_PORT`
- Persistent state stored in `~/.local/share/invest-bot/` (positions, equity history, logs)
- Backtest outputs: `backtest_equity_curve.csv`, `backtest_trades.csv` in working directory