Proxy get_assurance_summary to the guided-assurance leaf MCP
AI agents call get_assurance_summary 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 read-only operation that retrieves or queries assurance summary data from another MCP service. No data is created, modified, deleted, or financial transactions are involved. The proxy pattern simply forwards a GET-like request to retrieve information. The blast radius of misuse is limited to potential information disclosure.
From the tool's definition Tool name 'get_assurance_summary' and description 'Proxy get_assurance_summary to the guided-assurance leaf MCP' indicate retrieval of assurance data without modification or execution of external operations.
Attacks that exploit this kind of access
Proxy get_assurance_summary to the guided-assurance leaf MCP. 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 get_assurance_summary: 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.
get_assurance_summary 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_assurance_summary 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_assurance_summary. 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_assurance_summary 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.
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