# Command Execution

**Last Updated:** 2025-01
**Confidence:** High

## Summary

rdev executes commands (Claude, shell, git) in Kubernetes pods via kubectl exec. Commands can run synchronously or be queued for async processing with SSE output streaming.

**Key Facts:**
- Commands run in pods with label `rdev.orchard9.ai/project=true`
- Three types: `claude`, `shell`, `git`
- Async queue with status tracking (pending → running → completed/failed)
- Output streamed via SSE to `/projects/{id}/events/{stream_id}`
- All commands logged to audit trail

**File Pointers:**
- Executor: `internal/adapter/kubernetes/executor.go`
- Queue: `internal/adapter/postgres/queue.go`
- Worker: `internal/worker/queue.go`
- Handler: `internal/handlers/projects.go`

## Command Flow

```
Handler → Service → Queue (postgres)
                        ↓
                    Worker polls
                        ↓
                    Executor (kubectl exec)
                        ↓
                    StreamPublisher (SSE)
                        ↓
                    Webhook dispatch
```

## Request/Response

```
POST /projects/{id}/claude
Body: { "prompt": "write a hello world" }

Response:
{
    "command_id": "cmd-abc123",
    "stream_url": "/projects/my-project/events/stream-xyz"
}
```

## Status Transitions

| Status | Description |
|--------|-------------|
| `pending` | In queue, not started |
| `running` | Currently executing |
| `completed` | Finished successfully (exit 0) |
| `failed` | Error or non-zero exit |

## Related Topics

- [SSE Streaming](./sse-streaming.md)
- [Project Service](../services/project-service.md)