List available models, checkpoints, LoRAs, VAEs, and other resources in the ComfyUI models directory. Supports filtering by type and name.
AI agents call comfy_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 only queries and returns information about available models and resources in the ComfyUI directory without creating, modifying, deleting, or executing anything. It has no side effects and presents minimal risk if misused by an agent—the worst outcome is listing resources unnecessarily.
From the tool's definition Tool 'comfy_list_models' lists available models and resources with optional filtering—no modification, deletion, or execution occurs. The verb 'list' and description 'List available models' clearly indicate a retrieval operation.
Documented attack patterns abuse exactly the kind of access comfy_list_models gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and ComfyUI MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for comfy_list_models:
{
"version": "1",
"default": "deny",
"tools": {
"comfy_list_models": {}
}
}comfy_list_models is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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List available models, checkpoints, LoRAs, VAEs, and other resources in the ComfyUI models directory. Supports filtering by type and name. 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 comfy_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.
comfy_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 comfy_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 comfy_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.
comfy_list_models is provided by the ComfyUI MCP Server MCP server (nikolaibibo/claude-comfyui-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from ComfyUI MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
14 ComfyUI MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.