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layout	title	has_children	has_toc	nav_order	parent	grand_parent
default	Index Mapping tool	false	false	30	Tools	Agents and tools

Index Mapping tool

Introduced 2.12 {: .label .label-purple }

This is an experimental feature and is not recommended for use in a production environment. For updates on the progress of the feature or if you want to leave feedback, see the associated GitHub issue.
{: .warning}

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}"
      }
    }
  ]
}

{% include copy-curl.html %}

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?"
  }
}

{% include copy-curl.html %}

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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