# Art Celery

Distributed rendering for the Art DAG system using Celery.

## Dependencies

- **artdag** (GitHub): Core DAG execution engine
- **artdag-effects** (rose-ash): Effect implementations
- **Redis**: Message broker and result backend

## Setup

```bash
# Install Redis
sudo apt install redis-server

# Install Python dependencies
pip install -r requirements.txt

# Start a worker
celery -A celery_app worker --loglevel=info
```

## Usage

```bash
# Render cat through dog effect
python render.py dog cat --sync

# Render cat through identity effect
python render.py identity cat --sync

# Submit async (don't wait)
python render.py dog cat
```

## Architecture

```
render.py (CLI)
    │
    ▼
celery_app.py (Celery broker)
    │
    ▼
tasks.py (render_effect task)
    │
    ├── artdag (GitHub) - DAG execution
    └── artdag-effects (rose-ash) - Effect implementations
           │
           ▼
       Provenance JSON + Output file
```

## Provenance

Every render produces a provenance record:

```json
{
  "task_id": "celery-task-uuid",
  "rendered_at": "2026-01-07T...",
  "rendered_by": "@giles@artdag.rose-ash.com",
  "output": {"name": "...", "content_hash": "..."},
  "inputs": [...],
  "effects": [...],
  "infrastructure": {
    "software": {"name": "infra:artdag", "content_hash": "..."},
    "hardware": {"name": "infra:giles-hp", "content_hash": "..."}
  }
}
```