# syn control
> "Control running executions"

Control running executions

## `syn control cancel`

Cancel a running or paused execution.

```bash
syn control cancel <execution_id>
```

**Arguments:**

| Name | Type | Required | Description |
|------|------|----------|-------------|
| `execution_id` | `text` | Yes | Execution ID to cancel |

**Options:**

| Flag | Type | Default | Description |
|------|------|---------|-------------|
| `--reason`, `-r` | `text` | --- | Reason for cancelling |
| `--force`, `-f` | `boolean` | `false` | Skip confirmation prompt |

---

## `syn control inject`

Inject a message into a running execution.

```bash
syn control inject <execution_id> --message <message>
```

**Arguments:**

| Name | Type | Required | Description |
|------|------|----------|-------------|
| `execution_id` | `text` | Yes | Execution ID |

**Options:**

| Flag | Type | Default | Description |
|------|------|---------|-------------|
| `--message`, `-m` | `text` | --- | Message to inject |

---

## `syn control pause`

Pause a running execution at the next yield point.

```bash
syn control pause <execution_id>
```

**Arguments:**

| Name | Type | Required | Description |
|------|------|----------|-------------|
| `execution_id` | `text` | Yes | Execution ID to pause |

**Options:**

| Flag | Type | Default | Description |
|------|------|---------|-------------|
| `--reason`, `-r` | `text` | --- | Reason for pausing |

---

## `syn control resume`

Resume a paused execution.

```bash
syn control resume <execution_id>
```

**Arguments:**

| Name | Type | Required | Description |
|------|------|----------|-------------|
| `execution_id` | `text` | Yes | Execution ID to resume |

---

## `syn control status`

Get current execution control state.

```bash
syn control status <execution_id>
```

**Arguments:**

| Name | Type | Required | Description |
|------|------|----------|-------------|
| `execution_id` | `text` | Yes | Execution ID to check |

---

## `syn control stop`

Forcefully stop a running execution via SIGINT.

Sends a cancel signal that causes the engine to interrupt the Claude CLI
process via SIGINT and capture partial output as an interrupted execution.

```bash
syn control stop <execution_id>
```

**Arguments:**

| Name | Type | Required | Description |
|------|------|----------|-------------|
| `execution_id` | `text` | Yes | Execution ID to stop |

**Options:**

| Flag | Type | Default | Description |
|------|------|---------|-------------|
| `--reason`, `-r` | `text` | --- | Reason for stopping |
| `--force`, `-f` | `boolean` | `false` | Skip confirmation prompt |

---