List users with optional search and pagination
AI agents call youtrack_list_users to retrieve information from YouTrack 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 user information from YouTrack with search and pagination capabilities. It performs a query operation with no side effects, no data modification, no execution of arbitrary code, and no destructive actions. The blast radius of misuse is minimal — an attacker could enumerate users but cannot create, modify, or delete data. This is a straightforward read operation.
From the tool's definition Tool name contains 'list' and description states 'List users with optional search and pagination' — both indicate data retrieval without modification.
Attacks that exploit this kind of access
List users with optional search and pagination. It is categorised as a Read tool in the YouTrack MCP Server MCP Server, which means it retrieves data without modifying state.
Register the YouTrack MCP Server MCP server in PolicyLayer and add a rule for youtrack_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 YouTrack MCP Server. Nothing to install.
youtrack_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 youtrack_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 youtrack_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.
youtrack_list_users is provided by the YouTrack MCP Server MCP server (lucyfuur94/youtrack-integration). 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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