# ManagedToolUnavailableError

> **Class** in `deepagents_code`

📖 [View in docs](https://reference.langchain.com/python/deepagents-code/managed_tools/ManagedToolUnavailableError)

Raised when no managed helper binary is available for this system.

Distinct from transient network/download failures so callers can tell users
whether retrying can help or whether they need a different install path.

## Signature

```python
ManagedToolUnavailableError(
    self,
    *,
    tool: Literal['ripgrep'],
    reason: UnavailableReason,
    message: str,
)
```

## Parameters

| Name | Type | Required | Description |
|------|------|----------|-------------|
| `tool` | `Literal['ripgrep']` | Yes | Managed helper name. |
| `reason` | `UnavailableReason` | Yes | Stable reason token for logging and telemetry. |
| `message` | `str` | Yes | User-facing remediation message. |

## Extends

- `Exception`

## Constructors

```python
__init__(
    self,
    *,
    tool: Literal['ripgrep'],
    reason: UnavailableReason,
    message: str,
) -> None
```

| Name | Type |
|------|------|
| `tool` | `Literal['ripgrep']` |
| `reason` | `UnavailableReason` |
| `message` | `str` |


## Properties

- `tool`
- `reason`
- `message`

---

[View source on GitHub](https://github.com/langchain-ai/deepagents/blob/2069079e09546060f5b52b2cd4f0e3c813e820f3/libs/code/deepagents_code/managed_tools.py#L160)