AI agents call clark_facility_info to retrieve information from Clark without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves static configuration information about a facility (workers, enabled tasks) without modifying, deleting, or executing operations. It is a straightforward read operation with no destructive or side-effect capability. Even if an AI agent misuses it, the blast radius is limited to information disclosure.
From the tool's definition Tool name 'clark_facility_info' and description 'Get a facility's full configuration' indicate data retrieval only. The verb 'Get' and the context of querying warehouse workforce agent state shows no side effects or modifications.
Attacks that exploit this kind of access
Get a facility's full configuration: workers, enabled tasks, and. It is categorised as a Read tool in the Clark MCP Server, which means it retrieves data without modifying state.
Register the Clark MCP server in PolicyLayer and add a rule for clark_facility_info: 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 Clark. Nothing to install.
clark_facility_info 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 clark_facility_info 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 clark_facility_info. 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.
clark_facility_info is provided by the Clark MCP server (jarmstrong158/clark-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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