AI agents call deployed to retrieve information from McFlow without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and enumerates existing workflows from an n8n instance. It performs a query operation ('list') with no capability to modify, create, delete, or execute workflows. The blast radius of misuse is minimal—an agent could only gain visibility into existing workflows, which does not compromise system integrity or enable unauthorized actions.
From the tool's definition Tool name 'deployed' and description 'List all workflows in n8n instance' indicate a retrieval operation with no modification or side effects.
Attacks that exploit this kind of access
List all workflows in n8n instance - replaces. It is categorised as a Read tool in the McFlow MCP Server, which means it retrieves data without modifying state.
Register the McFlow MCP server in PolicyLayer and add a rule for deployed: 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 McFlow. Nothing to install.
deployed 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 deployed 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 deployed. 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.
deployed is provided by the McFlow MCP server (mckinleymedia/mcflow-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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