Get MongoDB server information including version, storage engine, and other details
AI agents call serverInfo to retrieve information from MongoDB without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves server metadata and configuration information with no ability to modify data or execute commands. It is a passive information-gathering operation with minimal security risk, making it a Read category tool at low severity.
From the tool's definition Tool name 'serverInfo' and description 'Get MongoDB server information including version, storage engine, and other details' indicate retrieval of metadata without modification. The server description also states this is a read-only query server.
Documented attack patterns abuse exactly the kind of access serverInfo gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and MongoDB, and nothing reaches the server without passing your rules. This is the rule we recommend for serverInfo:
{
"version": "1",
"default": "deny",
"tools": {
"serverInfo": {}
}
}serverInfo is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get MongoDB server information including version, storage engine, and other details. It is categorised as a Read tool in the MongoDB MCP Server, which means it retrieves data without modifying state.
Register the MongoDB MCP server in PolicyLayer and add a rule for serverInfo: 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. Nothing to install.
serverInfo 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 serverInfo 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 serverInfo. 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.
serverInfo is provided by the MongoDB MCP server (kiliczsh/mcp-mongo-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from MongoDB, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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8 MongoDB tools catalogued and risk-classified — across an index of 43,000+ MCP servers.