---
url: >-
  https://adk.nht.io/api/@nhtio/adk/batteries/skills/variables/E_SKILL_TOOL_BAD_RESPONSE.md
description: Raised when a skill tool returns a value that fails response validation.
---

# Variable: E\_SKILL\_TOOL\_BAD\_RESPONSE

```ts
const E_SKILL_TOOL_BAD_RESPONSE: CreatedException<[string]>;
```

Defined in: [src/batteries/skills/exceptions.ts:69](https://github.com/NHTIO/ADK/blob/v1.20260911.0/src/src/batteries/skills/exceptions.ts#L69)

Raised when a skill tool returns a value that fails response validation.