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# AWS::BedrockAgentCore::Harness LifecycleConfiguration
<a name="aws-properties-bedrockagentcore-harness-lifecycleconfiguration"></a>

LifecycleConfiguration lets you manage the lifecycle of runtime sessions and resources in AgentCore Runtime. This configuration helps optimize resource utilization by automatically cleaning up idle sessions and preventing long-running instances from consuming resources indefinitely.

## Syntax
<a name="aws-properties-bedrockagentcore-harness-lifecycleconfiguration-syntax"></a>

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

### JSON
<a name="aws-properties-bedrockagentcore-harness-lifecycleconfiguration-syntax.json"></a>

```
{
  "[IdleRuntimeSessionTimeout](#cfn-bedrockagentcore-harness-lifecycleconfiguration-idleruntimesessiontimeout)" : {{Integer}},
  "[MaxLifetime](#cfn-bedrockagentcore-harness-lifecycleconfiguration-maxlifetime)" : {{Integer}}
}
```

### YAML
<a name="aws-properties-bedrockagentcore-harness-lifecycleconfiguration-syntax.yaml"></a>

```
  [IdleRuntimeSessionTimeout](#cfn-bedrockagentcore-harness-lifecycleconfiguration-idleruntimesessiontimeout): {{Integer}}
  [MaxLifetime](#cfn-bedrockagentcore-harness-lifecycleconfiguration-maxlifetime): {{Integer}}
```

## Properties
<a name="aws-properties-bedrockagentcore-harness-lifecycleconfiguration-properties"></a>

`IdleRuntimeSessionTimeout`  <a name="cfn-bedrockagentcore-harness-lifecycleconfiguration-idleruntimesessiontimeout"></a>
Timeout in seconds for idle runtime sessions. When a session remains idle for this duration, it will be automatically terminated. Default: 900 seconds (15 minutes).  
*Required*: No  
*Type*: Integer  
*Minimum*: `60`  
*Maximum*: `28800`  
*Update requires*: [No interruption](https://docs.amazonaws.cn/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`MaxLifetime`  <a name="cfn-bedrockagentcore-harness-lifecycleconfiguration-maxlifetime"></a>
Maximum lifetime for the instance in seconds. Once reached, instances will be automatically terminated and replaced. Default: 28800 seconds (8 hours).  
*Required*: No  
*Type*: Integer  
*Minimum*: `60`  
*Maximum*: `28800`  
*Update requires*: [No interruption](https://docs.amazonaws.cn/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)