Cad Agent

# CAD Agent

> Give your AI agent eyes for CAD work.

## Description

CAD Agent is a rendering server that lets AI agents see what they're building. Send modeling commands → receive rendered images → iterate visually.

**Use when:** designing 3D-printable parts, parametric CAD, mechanical design, build123d modeling

## Architecture

**Critical:** All CAD logic runs inside the container. You (the agent) only:
1. Send commands via HTTP
2. View the returned images
3. Decide what to do next

```
YOU (agent)                     CAD AGENT CONTAINER
─────────────                   ───────────────────
Send build123d code      →      Executes modeling
                         ←      Returns JSON status
Request render           →      VTK renders the model
                         ←      Returns PNG image
*Look at the image*
Decide: iterate or done
```

**Never** do STL manipulation, mesh processing, or rendering outside the container. The container handles everything — you just command and observe.

## Setup

### 1. Clone the Repository

```bash
git clone https://github.com/clawd-maf/cad-agent.git
cd cad-agent
```

### 2. Build the Docker Image

```bash
docker build -t cad-agent:latest .
```

Or using docker-compose:

```bash
docker-compose build
```

### 3. Run the Server

```bash
# Using docker-compose (recommended)
docker-compose up -d

# Or using docker directly
docker run -d --name cad-agent -p 8123:8123 cad-agent:latest serve
```

### 4. Verify Installation

```bash
curl http://localhost:8123/health
# Should return: {"status": "healthy", ...}
```

> **Docker-in-Docker caveat:** In nested container environments (e.g., Clawdbot sandbox), host networking may not work—`curl localhost:8123` will fail even though the server binds to `0.0.0.0:8123`. Use `docker exec cad-agent python3 -c "..."` commands instead. On a normal Docker host, localhost access works fine.

## Workflow

### 1. Create Model

```bash
curl -X POST http://localhost:8123/model/create \
  -H "Content-Type:...