List all users accessible to the current user.
AI agents call quire.listUsers to retrieve information from Quire MCP 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 enumerates user information without creating, modifying, or deleting any data. It is a straightforward query operation that has minimal blast radius—listing users is a standard read-only action with no capability to alter state or trigger external operations.
From the tool's definition Tool name 'listUsers' and description 'List all users accessible to the current user' indicate a retrieval operation with no modification or side effects.
Risk signalsBulk/mass operation — affects multiple targets
Attacks that exploit this kind of access
List all users accessible to the current user. It is categorised as a Read tool in the Quire MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Quire MCP Server MCP server in PolicyLayer and add a rule for quire.listUsers: 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 Quire MCP Server. Nothing to install.
quire.listUsers 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 quire.listUsers 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 quire.listUsers. 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.
quire.listUsers is provided by the Quire MCP Server MCP server (jacob-hartmann/quire-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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