List the leave and payroll tools exposed by the HR domain proxy
AI agents call list_hr_tools to retrieve information from MCP Leave Management without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This is a discovery/introspection tool that queries the HR system to enumerate available leave and payroll tools. It performs no side effects, creates no resources, executes no external operations, and modifies no state. The action is read-only and returns metadata about the system. Severity is low because exposure of tool names and availability poses minimal risk even if misused by an agent.
From the tool's definition Tool description states 'List the leave and payroll tools' — a purely informational operation that retrieves and displays available tools without modifying, executing, or deleting anything.
Attacks that exploit this kind of access
List the leave and payroll tools exposed by the HR domain proxy. It is categorised as a Read tool in the MCP Leave Management MCP Server, which means it retrieves data without modifying state.
Register the MCP Leave Management MCP server in PolicyLayer and add a rule for list_hr_tools: 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 Leave Management. Nothing to install.
list_hr_tools 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_hr_tools 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_hr_tools. 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_hr_tools is provided by the MCP Leave Management MCP server (jaylathiatr/mcp-leave-management). 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.
Teams ship this data inside their own products. See what a licence covers →