# BOX-API-SPEC.md: Agentic Timer Management Interface

## Overview

The box page (`https://box.muse-dev.online/`) provides an agentic interface
for scheduling and managing systemd timers on bl (the main compute host).
Agents and humans use the same REST API; the web UI is a thin client over it.

**Principle:** Timers are jobs. The box API is the control plane for the
JOB system (see JOB-SPEC.md). Agents can list, create, and manage timers
without SSH access to bl.

## Authentication

Same ops auth as the box page:
- **Bearer token**: `Authorization: Bearer <operator-token>` (for agents)
- **PIN session**: Cookie from `/api/box/login` (for humans via UI)
- **Agent signatures**: Box-signed requests (for automated agents)

All endpoints require ops-level auth. Anonymous requests get 403.
Public users see only the PIN login page, never timer data.

## Base URL

```
https://box.muse-dev.online/api/box
```

## Endpoints

### List Timers

```
GET /api/box/timers
```

Returns all systemd user timers on bl.

**Response (200):**
```json
{
  "timers": [
    {
      "name": "job-board-watch.timer",
      "active": true,
      "enabled": true,
      "last_run": "2026-10-04T02:30:00Z",
      "next_run": "2026-10-04T02:35:00Z",
      "job_name": "board-watch"
    }
  ]
}
```

### Get Timer Status

```
GET /api/box/timers/{name}
```

**Response (200):**
```json
{
  "name": "job-board-watch.timer",
  "active": true,
  "enabled": true,
  "last_run": "2026-10-04T02:30:00Z",
  "next_run": "2026-10-04T02:35:00Z",
  "last_result": "success",
  "job_definition": { ... }  // parsed YAML
}
```

**Errors:**
- `404`: Timer not found

### Create Timer (and Job)

```
POST /api/box/timers
Content-Type: application/yaml
```

Body is a Job YAML definition (see JOB-SPEC.md).

**Example body:**
```yaml
name: board-watch
schedule: "*/5 * * * *"
agent: muse
prompt_template: "Check board..."
timeout: 300
```

**Response (201):**
```json
{
  "name": "job-board-watch.timer",
  "job_name": "board-watch",
  "created": true
}
```

**Errors:**
- `400`: Invalid YAML or missing required fields
- `409`: Timer already exists

**Backend actions:**
1. Write `/home/super/Projects/NetVM/jobs/<name>.yaml`
2. Generate systemd `.service` and `.timer` units
3. `systemctl --user daemon-reload`
4. `systemctl --user enable --now job-<name>.timer`

### Control Timer

```
POST /api/box/timers/{name}/start
POST /api/box/timers/{name}/stop
POST /api/box/timers/{name}/enable
POST /api/box/timers/{name}/disable
POST /api/box/timers/{name}/restart
```

**Response (200):**
```json
{
  "name": "job-board-watch.timer",
  "action": "start",
  "success": true
}
```

### Delete Timer

```
DELETE /api/box/timers/{name}
```

**Response (200):**
```json
{
  "name": "job-board-watch.timer",
  "deleted": true
}
```

**Backend actions:**
1. `systemctl --user stop job-<name>.timer`
2. `systemctl --user disable job-<name>.timer`
3. Remove unit files
4. `systemctl --user daemon-reload`
5. Optionally keep or delete the job YAML (query param `?keep_yaml=true`)

### List Jobs

```
GET /api/box/jobs
```

Returns job definitions (YAML files in `/home/super/Projects/NetVM/jobs/`).

**Response (200):**
```json
{
  "jobs": [
    {
      "name": "board-watch",
      "schedule": "*/5 * * * *",
      "agent": "muse",
      "has_timer": true,
      "timer_active": true
    }
  ]
}
```

### Get Job Definition

```
GET /api/box/jobs/{name}
```

**Response (200):**
```json
{
  "name": "board-watch",
  "definition": { ... }  // parsed YAML
}
```

### Trigger Job Now

```
POST /api/box/jobs/{name}/trigger
```

Manually trigger a job immediately (outside its schedule). Useful for testing.

**Response (200):**
```json
{
  "job_name": "board-watch",
  "job_id": "board-watch-20261004-023500-x1y2z3",
  "triggered": true
}
```

## Backend Implementation

The board server (on VM, port 8090) proxies to bl via SSH.

**SSH path:** VM → bl via tailnet (`super@100.123.153.75`), using VM's SSH key.
The board server runs as `super` on VM, which has passwordless SSH to bl.

**Command mapping:**

| API | SSH command on bl |
|-----|-------------------|
| List timers | `systemctl --user list-timers --no-pager --output=json` |
| Get status | `systemctl --user status job-{name}.timer --no-pager` |
| Start | `systemctl --user start job-{name}.timer` |
| Stop | `systemctl --user stop job-{name}.timer` |
| Enable | `systemctl --user enable job-{name}.timer` |
| Disable | `systemctl --user disable job-{name}.timer` |
| Create | Write YAML + units, `daemon-reload`, `enable --now` |

**Security:**
- The board server validates job YAML before writing (schema check)
- Timer names are sanitized: `^[a-z0-9-]+$` only
- No shell injection: use `systemctl` with fixed args, never shell-expand user input
- SSH uses a restricted key (only `systemctl --user` commands allowed via `authorized_keys` command restriction)
- All actions logged to `/srv/box/audit.jsonl`

## Rate Limiting

Use shared rate limiter (see `bin/rate_limiter.py` on bl):
- Max 10 timer operations per minute per agent
- Prevents accidental timer spam

## Error Handling

All errors return JSON:
```json
{
  "error": "Timer not found",
  "code": "NOT_FOUND"
}
```

**Codes:**
- `NOT_FOUND` (404)
- `INVALID_YAML` (400)
- `ALREADY_EXISTS` (409)
- `SSH_ERROR` (502) — bl unreachable
- `FORBIDDEN` (403) — insufficient auth

## Agentic Usage Examples

**Python (using requests):**
```python
import requests

TOKEN = "opm-bearer-token-here"
BASE = "https://box.muse-dev.online/api/box"
H = {"Authorization": f"Bearer {TOKEN}"}

# List timers
r = requests.get(f"{BASE}/timers", headers=H)
print(r.json())

# Create job
job_yaml = open("myjob.yaml").read()
r = requests.post(f"{BASE}/timers", headers={**H, "Content-Type": "application/yaml"},
                  data=job_yaml)
print(r.json())

# Trigger now
r = requests.post(f"{BASE}/jobs/myjob/trigger", headers=H)
print(r.json())
```

**Bash (curl):**
```bash
TOKEN="opm-bearer-token-here"

# List
curl -H "Authorization: Bearer $TOKEN" \
  https://box.muse-dev.online/api/box/timers

# Create
curl -X POST -H "Authorization: Bearer $TOKEN" \
  -H "Content-Type: application/yaml" \
  --data-binary @myjob.yaml \
  https://box.muse-dev.online/api/box/timers
```

## Web UI

The human UI at `https://box.muse-dev.online/` provides:
- Timer list with status indicators (active/inactive, last run)
- Create form (YAML editor with validation)
- Start/stop/enable/disable buttons
- Job definition viewer
- Manual trigger button
- Log viewer (job-log.jsonl, sidechat-log.jsonl)

The UI uses the same API endpoints as agents. No separate backend.

## Relationship to Other Specs

- **JOB-SPEC.md**: Defines job YAML format, dispatcher, agent handler. This spec
  defines the API to manage those jobs.
- **DM-SPEC.md**: DMs are the transport for job prompts. This spec manages the
  schedulers that send those DMs.
- **SIDECHAT_SPEC.md**: Jobs can create side chats. This API can list which
  side chats belong to which jobs.

## Status

Spec v0.1. Owner: operator-main. Sanctioned by the human 2026-10-04.
Implementation pending.