# Vector Store Q&A Tool - Workflow node | Docs - nodulz

Source: https://nodulz.com/docs/nodes/ai_tool_vector_qa

Language: en

Answer questions from a vector store

## Usage and specifics

Connect this tool to an agent tool port. name and description help the model select it; configure sources, templates and limits before calling. requireApproval, where available, controls operations requiring approval.

Technical type : `ai_tool_vector_qa`. Runtime : `nodulz`.

## Credentials and prerequisites

- [Create and configure the credential : ai-model](/docs/credentials/ai-model)

Create credentials in your nodulz instance’s Credentials area, then select them on the node. Availability depends on ownership and sharing. See the [credentials guide](/docs/credentials) for access and rotation.

## Parameters

Names below are technical keys. Defaults are not a ready-to-run configuration: complete fields required by your operation. Paths containing [] describe list items; some fields depend on the selected mode.

| Parameter | Type | Default | Values / limits |
| --- | --- | --- | --- |
| `name` | `string` | `"vector_qa"` | - |
| `description` | `string` | `"Answer from vector store"` | - |
| `storeSource` | `string` | `""` | - |
| `credentialId` | `string` | - | - |
| `model` | `string` | `""` | - |
| `embeddingModel` | `string` | `"text-embedding-3-small"` | - |
| `embeddingCredentialId` | `string` | - | - |

## Initial configuration

Initial catalog configuration example, to adapt before running. Keep secrets in credentials.

```json
{
  "name": "vector_qa",
  "description": "Answer from vector store",
  "storeSource": "",
  "model": "",
  "embeddingModel": "text-embedding-3-small"
}
```

## Verification

Test with representative data. Check node output in the inspector and logs, then use editor mapping for downstream fields. A trigger test with a simulated payload does not validate external service delivery.

See also : [Expressions and data](/docs/expressions), [Executions](/docs/executions), [Node catalog](/docs/nodes).

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- [Features - nodulz](https://nodulz.com/product/overview)
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