Get statistics for a MongoDB collection
AI agents call mongo_get_collection_stats to retrieve information from Mcp Database without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves collection statistics (size, document count, storage info, etc.) which are read-only operations with no side effects. It does not modify data, execute arbitrary code, delete anything, or affect financial systems. The 'Get statistics' phrasing confirms it is purely informational/exploratory, consistent with other read-only tools in the suite like 'describe_table' and 'get_table_stats'.
From the tool's definition Tool name 'mongo_get_collection_stats' and description 'Get statistics for a MongoDB collection' indicate a query operation that retrieves metadata about a collection without modifying data.
Attacks that exploit this kind of access
Get statistics for a MongoDB collection. It is categorised as a Read tool in the Mcp Database MCP Server, which means it retrieves data without modifying state.
Register the Mcp Database MCP server in PolicyLayer and add a rule for mongo_get_collection_stats: 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 Mcp Database. Nothing to install.
mongo_get_collection_stats 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 mongo_get_collection_stats 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 mongo_get_collection_stats. 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.
mongo_get_collection_stats is provided by the Mcp Database MCP server (nam088/mcp-database-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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