Returns information (mappings, settings, aliases) about one or more indices.
AI agents call get_index to retrieve information from Elasticsearch/OpenSearch MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a read-only query operation that retrieves configuration and metadata about Elasticsearch/OpenSearch indices. It has no side effects—it does not create, modify, delete, or execute any operations. The blast radius of misuse is minimal since an agent can only discover what indices exist and their structure, not cause data loss or perform privileged operations.
From the tool's definition Tool name 'get_index' and description 'Returns information (mappings, settings, aliases) about one or more indices' indicate retrieval of metadata with no modification or deletion.
Attacks that exploit this kind of access
Returns information (mappings, settings, aliases) about one or more indices. It is categorised as a Read tool in the Elasticsearch/OpenSearch MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Elasticsearch/OpenSearch MCP Server MCP server in PolicyLayer and add a rule for get_index: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Elasticsearch/OpenSearch MCP Server. Nothing to install.
get_index is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the get_index rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for get_index. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
get_index is provided by the Elasticsearch/OpenSearch MCP Server MCP server (rbedoyag/elasticsearch-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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