get_user_by_uuid
AI agents call get_user_by_uuid to retrieve information from MCP PostgreSQL Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves user information by UUID, consistent with the server's stated purpose of 'user name resolution and team management' for lookups. The empty description lowers confidence slightly, but the naming pattern and sibling tool context strongly indicate a non-destructive query operation with minimal blast radius if misused.
From the tool's definition Tool name 'get_user_by_uuid' suggests retrieval by identifier; sibling tools include 'resolve_user', 'get_team_members', 'get_manager_of_user', and 'get_meeting_details'—all Read operations.
Attacks that exploit this kind of access
get_user_by_uuid. It is categorised as a Read tool in the MCP PostgreSQL Server MCP Server, which means it retrieves data without modifying state.
Register the MCP PostgreSQL Server MCP server in PolicyLayer and add a rule for get_user_by_uuid: 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 PostgreSQL Server. Nothing to install.
get_user_by_uuid 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_user_by_uuid 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_user_by_uuid. 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_user_by_uuid is provided by the MCP PostgreSQL Server MCP server (shubham-mishra-remotedesk/mcp-personal-efforti). 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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