List all licenses for an agent.
AI agents call list_agent_licenses to retrieve information from CustomGPT MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves information about licenses associated with an agent. The verb 'list' and the absence of any modification language (create, update, delete) clearly indicate a query operation with no side effects. It falls squarely into the Read category. Severity is low because retrieving license metadata poses minimal risk even if misused by an AI agent.
From the tool's definition Tool name 'list_agent_licenses' and description 'List all licenses for an agent' indicate a read-only operation that retrieves and enumerates existing license data without modification.
Attacks that exploit this kind of access
List all licenses for an agent. It is categorised as a Read tool in the CustomGPT MCP Server MCP Server, which means it retrieves data without modifying state.
Register the CustomGPT MCP Server MCP server in PolicyLayer and add a rule for list_agent_licenses: 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 CustomGPT MCP Server. Nothing to install.
list_agent_licenses 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 list_agent_licenses 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 list_agent_licenses. 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.
list_agent_licenses is provided by the CustomGPT MCP Server MCP server (poll-the-people/customgpt-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.
Teams ship this data inside their own products. See what a licence covers →