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Index Mapping tool

Introduced 2.13

The IndexMappingTool retrieves mapping and setting information for indexes in your cluster.

Step 1: Register a flow agent that will run the IndexMappingTool

A flow agent runs a sequence of tools in order and returns the last tool’s output. To create a flow agent, send the following register agent request:

POST /_plugins/_ml/agents/_register
{
  "name": "Test_Agent_For_IndexMapping_tool",
  "type": "flow",
  "description": "this is a test agent for the IndexMappingTool",
  "tools": [
      {
      "type": "IndexMappingTool",
      "name": "DemoIndexMappingTool",
      "parameters": {
        "index": "${parameters.index}",
        "input": "${parameters.question}"
      }
    }
  ]
}

For parameter descriptions, see Register parameters.

OpenSearch responds with an agent ID:

{
  "agent_id": "9X7xWI0Bpc3sThaJdY9i"
}

Step 2: Run the agent

Before you run the agent, make sure that you add the sample OpenSearch Dashboards Sample eCommerce orders dataset. To learn more, see Adding sample data.

Then, run the agent by sending the following request and providing the index name and the question:

POST /_plugins/_ml/agents/9X7xWI0Bpc3sThaJdY9i/_execute
{
  "parameters": {
    "index": [ "sample-ecommerce" ],
    "question": "What fields are in the sample-ecommerce index?"
  }
}

OpenSearch returns the mappings and settings for the specified index:

{
  "inference_results": [
    {
      "output": [
        {
          "name": "response",
          "result": """index: sample-ecommerce

mappings:
properties={items_purchased_failure={type=integer}, items_purchased_success={type=integer}, order_id={type=integer}, timestamp={type=date}, total_revenue_usd={type=integer}}


settings:
index.creation_date=1706752839713
index.number_of_replicas=1
index.number_of_shards=1
index.provided_name=sample-ecommerce
index.replication.type=DOCUMENT
index.uuid=UPYOQcAfRGqFAlSxcZlRjw
index.version.created=137217827


"""
        }
      ]
    }
  ]
}

Register parameters

The following table lists all tool parameters that are available when registering an agent.

Parameter Type Required/Optional Description
input String Required The user input used to return index information.
index Array Required A comma-delimited list of one or more indexes for which to obtain mapping and setting information. Default is an empty list, which means all indexes.
local Boolean Optional Whether to return information from the local node only instead of the cluster manager node (default is false).

Execute parameters

The following table lists all tool parameters that are available when running the agent.

Parameter Type Required/Optional Description
question String Required The natural language question to send to the LLM.
index Array Optional A comma-delimited list of one or more indexes for which to obtain mapping and setting information. Default is an empty list, which means all indexes.
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