This record as markdown: /tools/agent-custody/customer.lookup.md
What customer.lookup does on Agent Custody
AI agents call customer.lookup as a supporting operation in Agent Custody workflows.
Why customer.lookup is rated Low
Without any rule in front of it, every call an agent makes to customer.lookup happens silently: no trail, no cap, no way to know it misbehaved until something breaks downstream.
Attacks that exploit this kind of access
The rule that runs customer.lookup safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Agent Custody, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For customer.lookup, this is the rule to start with:
customer.lookup gets a rate cap, and everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Agent Custody, apply this rule, and every customer.lookup call is checked against it from then on.
Questions about customer.lookup
Look up a customer record. It is categorised as a Other tool in the Agent Custody MCP Server, which means it performs auxiliary operations.
Register the Agent Custody MCP server in PolicyLayer and add a rule for customer.lookup: 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 Agent Custody. Nothing to install.
customer.lookup is a Other tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the customer.lookup 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 customer.lookup. 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.
customer.lookup is provided by the Agent Custody MCP server (ch4r10t33r/agent-custody). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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