List all available workflows in the workflow directory. Returns a catalog of workflows with their IDs, names, descriptions, available inputs, and optional metadata.
AI agents call list_workflows 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 is a read-only operation that queries and retrieves workflow metadata from a directory. It has no capability to modify, delete, execute, or create workflows—only to enumerate and inspect existing ones. The blast radius of misuse is minimal, as an agent could at worst discover available workflows but cannot act upon them without other tools.
From the tool's definition Tool description states it 'List all available workflows' and 'Returns a catalog of workflows with their IDs, names, descriptions, available inputs, and optional metadata.' The verb 'list' combined with 'returns' indicates pure data retrieval with no…
Documented attack patterns abuse exactly the kind of access list_workflows 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 list_workflows:
{
"version": "1",
"default": "deny",
"tools": {
"list_workflows": {}
}
}list_workflows is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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List all available workflows in the workflow directory. Returns a catalog of workflows with their IDs, names, descriptions, available inputs, and optional metadata. 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_workflows: 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_workflows 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_workflows 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_workflows. 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_workflows is provided by the ComfyUI MCP Server MCP server (joenorton/comfyui-mcp-server). 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.
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15 ComfyUI MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.