# Foxhunt

Production HFT trading system in Rust.

## Architecture

The workspace contains 32 crates organized as follows:

### Core Libraries (16)

| Crate | Purpose |
|-------|---------|
| `trading_engine` | Order processing, FIX 4.4, IB TWS, SIMD, RDTSC timing |
| `risk` | VaR, Kelly, circuit breakers, kill switches, compliance |
| `risk-data` | Risk data types and shared structures |
| `trading-data` | Trading data types |
| `ml` | DQN Rainbow, PPO, TFT, Mamba2, ensemble inference |
| `ml-data` | ML data types and feature definitions |
| `data` | Market data ingestion and storage |
| `backtesting` | Replay engine, strategy tester |
| `adaptive-strategy` | Ensemble execution, microstructure analysis |
| `common` | Shared types, resilience, error handling |
| `storage` | S3 and local model storage |
| `model_loader` | Model serialization and loading |
| `market-data` | Market data feed handlers |
| `database` | PostgreSQL access layer (SQLx) |
| `config` | Configuration management |
| `tli` | CLI commands and tooling |

### Services (8)

| Service | Purpose |
|---------|---------|
| `backtesting_service` | gRPC backtesting service |
| `broker_gateway_service` | FIX routing, broker connectivity |
| `trading_service` | Core trading operations |
| `ml_training_service` | Model training orchestration |
| `data_acquisition_service` | Market data acquisition |
| `trading_agent_service` | Autonomous trading agents |
| `api_gateway` | gRPC API gateway with auth |
| `web-gateway` | Axum REST + WebSocket gateway |

### Frontend

`web-dashboard/` -- React 19 + TypeScript + Vite + TradingView charts.

## Building

```bash
# Check compilation (no PostgreSQL required)
SQLX_OFFLINE=true cargo check --workspace

# Run tests for a specific crate
SQLX_OFFLINE=true cargo test -p <crate> --lib

# Clippy
SQLX_OFFLINE=true cargo clippy --workspace
```

## ML Models

Four production model architectures on Candle v0.9.1 with CUDA:

- **DQN Rainbow** -- Deep Q-Network with prioritized replay, dueling heads, noisy nets
- **PPO** -- Proximal Policy Optimization with GAE and LSTM policies
- **TFT** -- Temporal Fusion Transformer for multi-horizon forecasting
- **Mamba2** -- State space model for sequence prediction

Each model has a standalone trainer and a `UnifiedTrainable` adapter for the hyperopt pipeline.

## Infrastructure

- **Git**: Gitea at `git.fxhnt.ai` (Tailscale-only), Scaleway DEV1-S
- **Observability**: OpenTelemetry OTLP (env `OTEL_EXPORTER_OTLP_ENDPOINT`)
- **Database**: PostgreSQL with SQLx offline mode for CI

## License

Proprietary. All rights reserved.