How to disable knowledge base source citations in Bedrock Agent responses

[zhang2645795251]

Hello AWS Bedrock Team,

I'm working with Amazon Bedrock Agents and have encountered an issue where I need to remove knowledge base source citations (such as <sources> tags or attribution information) from the agent's responses.

Current Situation:

When my agent responds to queries using information from a connected knowledge base, it automatically includes source citations (like document references or <sources> tags) in the output. While this is useful in some cases, I need to disable this feature for certain use cases where I want to present only the clean answer without any source attribution.

What I've Tried:

I've attempted configuring the sessionState.knowledgeBaseConfigurations parameter in the invoke_agent API call, focusing on the retrievalConfiguration settings. Here's a simplified version of my configuration:

request_params = {
    'agentId': 'MY_AGENT_ID',
    'agentAliasId': 'MY_ALIAS_ID',
    'sessionId': 'MY_SESSION_ID',
    'inputText': 'user query',
    'sessionState': {
        'knowledgeBaseConfigurations': [
            {
                'knowledgeBaseId': 'MY_KNOWLEDGE_BASE_ID',
                'retrievalConfiguration': {
                    'vectorSearchConfiguration': {
                        # My filters and configurations
                    }
                }
            }
        ]
    }
}

However, this still results in source information being included in the response.
Questions:
Is there an official way to disable knowledge base source citations in the agent's responses?
Are there specific parameters or configurations in the invoke_agent API that control the inclusion of source information?
If this feature isn't currently available, are there any workarounds or plans to support it in future releases?
I've reviewed the Boto3 documentation for AgentsforBedrockRuntime but couldn't find explicit information about controlling source citations.
Any guidance or clarification would be greatly appreciated!
Thanks