This is the new *CloudFormation Template Reference Guide*. Please update your bookmarks and links. For help getting started with CloudFormation, see the [AWS CloudFormation User Guide](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/Welcome.html).

# AWS::Bedrock::Agent AgentKnowledgeBase
<a name="aws-properties-bedrock-agent-agentknowledgebase"></a>

Contains details about a knowledge base that is associated with an agent.

## Syntax
<a name="aws-properties-bedrock-agent-agentknowledgebase-syntax"></a>

To declare this entity in your CloudFormation template, use the following syntax:

### JSON
<a name="aws-properties-bedrock-agent-agentknowledgebase-syntax.json"></a>

```
{
  "[Description](#cfn-bedrock-agent-agentknowledgebase-description)" : String,
  "[KnowledgeBaseId](#cfn-bedrock-agent-agentknowledgebase-knowledgebaseid)" : String,
  "[KnowledgeBaseState](#cfn-bedrock-agent-agentknowledgebase-knowledgebasestate)" : String
}
```

### YAML
<a name="aws-properties-bedrock-agent-agentknowledgebase-syntax.yaml"></a>

```
  [Description](#cfn-bedrock-agent-agentknowledgebase-description): String
  [KnowledgeBaseId](#cfn-bedrock-agent-agentknowledgebase-knowledgebaseid): String
  [KnowledgeBaseState](#cfn-bedrock-agent-agentknowledgebase-knowledgebasestate): String
```

## Properties
<a name="aws-properties-bedrock-agent-agentknowledgebase-properties"></a>

`Description`  <a name="cfn-bedrock-agent-agentknowledgebase-description"></a>
The description of the association between the agent and the knowledge base.  
*Required*: Yes  
*Type*: String  
*Minimum*: `1`  
*Maximum*: `200`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`KnowledgeBaseId`  <a name="cfn-bedrock-agent-agentknowledgebase-knowledgebaseid"></a>
The unique identifier of the association between the agent and the knowledge base.  
*Required*: Yes  
*Type*: String  
*Pattern*: `^[0-9a-zA-Z]{10}$`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`KnowledgeBaseState`  <a name="cfn-bedrock-agent-agentknowledgebase-knowledgebasestate"></a>
Specifies whether to use the knowledge base or not when sending an [InvokeAgent](https://docs.aws.amazon.com/bedrock/latest/APIReference/API_agent-runtime_InvokeAgent.html) request.  
*Required*: No  
*Type*: String  
*Allowed values*: `ENABLED | DISABLED`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)