Error: interactionId is required, in Assistant Dashboards

OpenSearch Dashboards
4

@alexc This appears to be a bug in how OpenSearch Dashboard handles the conversation memory in OS2.18

I tested this in OS3.3 using the following configuration (wrapping flow agent around your conversational agent) and it works as expected

# For ease of testing
PUT /_cluster/settings
{
  "persistent": {
    "plugins.ml_commons.only_run_on_ml_node": false
  }
}

# Create connector
POST /_plugins/_ml/connectors/_create
{
  "name": "OpenAI Chat Connector",
  "description": "Connector for OpenAI with conversation memory",
  "version": 1,
  "protocol": "http",
  "parameters": {
    "endpoint": "api.openai.com",
    "model": "gpt-4o-mini"
  },
  "credential": {
    "openAI_key": "openAI_KEY"
  },
  "actions": [
    {
      "action_type": "predict",
      "method": "POST",
      "url": "https://${parameters.endpoint}/v1/chat/completions",
      "headers": {
        "Authorization": "Bearer ${credential.openAI_key}",
        "Content-Type": "application/json"
      },
      "request_body": "{ \"model\": \"${parameters.model}\", \"messages\": [{\"role\":\"system\",\"content\":\"You are a helpful assistant.\"},{\"role\":\"user\",\"content\":\"${parameters.prompt}\"}] }"
    }
  ]
}

# Register a model
POST /_plugins/_ml/models/_register
{
  "name": "OpenAI gpt-4o-mini",
  "function_name": "remote",
  "connector_id": "<connector_ID>"
}

# Register an agent (conversational_flow)
POST /_plugins/_ml/agents/_register
{
  "name": "OpenAI Chat Agent",
  "type": "conversational_flow",
  "description": "Conversational agent with memory",
  "app_type": "os_chat",
  "memory": {
    "type": "conversation_index"
  },
  "tools": [
    {
      "type": "MLModelTool",
      "name": "chat_model",
      "description": "General purpose chat model",
      "parameters": {
        "model_id": "<Model_ID>",
        "prompt": "${parameters.chat_history:-}Human: ${parameters.question}\n\nAssistant:"
      },
      "include_output_in_agent_response": true
    }
  ]
} 


# Register a second agent (wrapper)
POST /_plugins/_ml/agents/_register
{
  "name": "Dashboard Root Agent",
  "type": "flow",
  "description": "Root agent for Dashboard Assistant",
  "tools": [
    {
      "type": "AgentTool",
      "name": "LLMResponseGenerator",
      "parameters": {
        "agent_id": "<Agent_ID_conversational>"
      },
      "include_output_in_agent_response": true
    }
  ],
  "memory": {
    "type": "conversation_index"
  }
}

PUT /.plugins-ml-config/_doc/os_chat
{
  "type": "os_chat_root_agent",
  "configuration": {
    "agent_id": "<Agent_ID_flow>"
  }
}

You should now be able to ask AI Assistant multiple consecutive questions. Hope this helps.