Proxy find_tests_by_owner to the guided-assurance leaf MCP
AI agents call find_tests_by_owner 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 tool retrieves or queries data (finding tests by an owner attribute) without modifying, deleting, or executing operations. It is a read-only lookup operation with minimal blast radius if misused—at worst, an AI agent could retrieve test metadata it shouldn't have access to, but no data is created, modified, or destroyed.
From the tool's definition Tool name 'find_tests_by_owner' and description 'Proxy find_tests_by_owner to the guided-assurance leaf MCP' indicate a query/lookup operation that retrieves test records filtered by owner.
Attacks that exploit this kind of access
Proxy find_tests_by_owner 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 find_tests_by_owner: 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.
find_tests_by_owner 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 find_tests_by_owner 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 find_tests_by_owner. 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.
find_tests_by_owner 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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