AI agents call lookup_agent_cli to retrieve information from Unlimited without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries a knowledge catalog to retrieve information about a CLI agent. It is a read-only operation that retrieves data without side effects, triggering execution, or modifying state. The severity is low because misuse would only expose existing catalog information rather than compromise system integrity or trigger unintended actions.
From the tool's definition Tool name contains 'lookup' and description states 'Look up a CLI agent in the knowledge catalog' — this is a retrieval operation with no modification or execution of external systems.
Attacks that exploit this kind of access
Look up a CLI agent in the knowledge catalog. It is categorised as a Read tool in the Unlimited MCP Server, which means it retrieves data without modifying state.
Register the Unlimited MCP server in PolicyLayer and add a rule for lookup_agent_cli: 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 Unlimited. Nothing to install.
lookup_agent_cli 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 lookup_agent_cli 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 lookup_agent_cli. 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.
lookup_agent_cli is provided by the Unlimited MCP server (triumsebas/unlimited-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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