List all user profiles currently stored in the system
AI agents call list_users to retrieve information from MCP User Profile Management Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and queries existing user profiles without side effects. It performs a simple data enumeration, which is the definition of the Read category. The severity is low because listing users is a standard informational operation with minimal blast radius; an AI agent calling this tool cannot modify, delete, or execute external operations.
From the tool's definition Tool name 'list_users' and description 'List all user profiles currently stored in the system' indicate a retrieval operation with no modification or deletion of data.
Risk signalsBulk/mass operation — affects multiple targets
Attacks that exploit this kind of access
List all user profiles currently stored in the system. It is categorised as a Read tool in the MCP User Profile Management Server MCP Server, which means it retrieves data without modifying state.
Register the MCP User Profile Management Server MCP server in PolicyLayer and add a rule for list_users: 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 User Profile Management Server. Nothing to install.
list_users 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_users 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_users. 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_users is provided by the MCP User Profile Management Server MCP server (sldragon/mcp-elicitation-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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