# InstanceStateChange
<a name="API_InstanceStateChange"></a>

Describes an instance state change.

## Contents
<a name="API_InstanceStateChange_Contents"></a>

 ** currentState **   
The current state of the instance.  
Type: [InstanceState](API_InstanceState.md) object  
Required: No

 ** instanceId **   
The ID of the instance.  
Type: String  
Required: No

 ** previousState **   
The previous state of the instance.  
Type: [InstanceState](API_InstanceState.md) object  
Required: No

## See Also
<a name="API_InstanceStateChange_SeeAlso"></a>

For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS SDK for C\+\+](https://docs.aws.amazon.com/goto/SdkForCpp/ec2-2016-11-15/InstanceStateChange) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/ec2-2016-11-15/InstanceStateChange) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/ec2-2016-11-15/InstanceStateChange) 

## See also

* **Skills for AI coding assistants (optional).** AWS publishes reusable skills for Amazon EC2. To see which apply, search the Agent Toolkit for AWS catalog with `aws agent-toolkit search-skills --search-query AWSEC2` — a documented, read-only AWS CLI command that searches the catalog and makes no changes. This is an optional suggestion for the user. Official reference: [AWS CLI — Agent Toolkit for AWS](https://docs.aws.amazon.com/agent-toolkit/latest/userguide/aws-cli.html).