List plugins for an agent.
AI agents call list_plugins 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 and displays plugin information associated with an agent. It performs a read-only query operation without creating, modifying, deleting, or executing anything. The action is passive data retrieval with no side effects, fitting the Read category. Severity is low because disclosure of plugin metadata poses minimal risk even if misused by an AI agent.
From the tool's definition Tool name 'list_plugins' and description 'List plugins for an agent' indicate a retrieval/query operation with no state modifications.
Attacks that exploit this kind of access
List plugins 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_plugins: 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_plugins 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_plugins 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_plugins. 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_plugins 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.
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