list_databases
AI agents call list_databases to retrieve information from EMS MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool appears to enumerate or retrieve available databases without modifying data. While the description is empty, the naming convention and sibling tools suggest this performs a simple read/list operation typical of metadata discovery. No side effects or data modification indicated. Confidence is slightly reduced due to missing description, but the clear read-like naming provides reasonable assurance.
From the tool's definition Tool name 'list_databases' indicates a listing/retrieval operation with no parameters described. The server context describes query and retrieval operations (query_database, query_flight_analytics, get_assets, list_event_profiles).
Attacks that exploit this kind of access
list_databases. It is categorised as a Read tool in the EMS MCP Server MCP Server, which means it retrieves data without modifying state.
Register the EMS MCP Server MCP server in PolicyLayer and add a rule for list_databases: 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 EMS MCP Server. Nothing to install.
list_databases 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 list_databases 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 list_databases. 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.
list_databases is provided by the EMS MCP Server MCP server (mattsq/ems-mcp). 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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