(Bedrock/Agent): Allow to add a user Input flow to an agent via a property

[massi-ang]

Describe the feature

Adding the possibility to ask user for complementing information to complete a task is implemented by adding a special Action Group to an agent.
This can be done currently with the CDK construct, but require the developer to know the details on how this action groups should be configured. It would be more developer friendly to just have a boolean value enableUserInput in the Agent creation props, which gets translated into the necessary group configuration.

Use Case

Enable Agents to ask for user input

Proposed Solution

Implement a enableUserInput boolean property in the Agent props.
If true automatically create and add the ActionGroup configured as:

{
  'actionGroupName': 'UserInputAction',
  'parentActionSignature': 'AMAZON.UserInput',
  'actionGroupState': 'ENABLED'
}

Other Information

No response

Acknowledgements

• I may be able to implement this feature request
• This feature might incur a breaking change