Get all indexes for a MongoDB collection.
AI agents call get_collection_indexes to retrieve information from MongoDB MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves index information from a collection, which is a read-only query operation with no side effects. It does not modify data, execute arbitrary code, delete anything, or involve financial transactions. The blast radius of misuse is minimal—an attacker could only gain knowledge of the collection's indexing strategy, which may inform further attacks but causes no immediate harm.
From the tool's definition Tool name 'get_collection_indexes' and description 'Get all indexes for a MongoDB collection' indicate retrieval of metadata without modification.
Attacks that exploit this kind of access
Get all indexes for a MongoDB collection. It is categorised as a Read tool in the MongoDB MCP Server MCP Server, which means it retrieves data without modifying state.
Register the MongoDB MCP Server MCP server in PolicyLayer and add a rule for get_collection_indexes: 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 MongoDB MCP Server. Nothing to install.
get_collection_indexes 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_collection_indexes 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_collection_indexes. 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_collection_indexes is provided by the MongoDB MCP Server MCP server (ruslankf777/mcp_mongo). 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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