List available checkpoint models in ComfyUI.
AI agents call list_models to retrieve information from ComfyUI MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool merely enumerates available models without modifying, deleting, or executing any operations. It is a straightforward informational read that returns a list of available resources. There is no risk of data loss, code execution, or financial impact.
From the tool's definition Tool name 'list_models' combined with description 'List available checkpoint models in ComfyUI' indicates a query/retrieval operation with no side effects.
Attacks that exploit this kind of access
List available checkpoint models in ComfyUI. It is categorised as a Read tool in the ComfyUI MCP Server MCP Server, which means it retrieves data without modifying state.
Register the ComfyUI MCP Server MCP server in PolicyLayer and add a rule for list_models: 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 ComfyUI MCP Server. Nothing to install.
list_models 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_models 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_models. 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_models is provided by the ComfyUI MCP Server MCP server (m2ai-archive/comfyui-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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