Get all webhooks in a workflow
AI agents call list_workflow_webhooks to retrieve information from Mcp N8n Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and retrieves webhook configurations from a workflow. It has no side effects, does not modify or delete data, and does not execute external operations. It is a straightforward Read operation with minimal blast radius even if misused by an AI agent, as it only exposes existing webhook metadata.
From the tool's definition Tool name is 'list_workflow_webhooks' and description states 'Get all webhooks in a workflow' — a read operation that retrieves information without modification.
Attacks that exploit this kind of access
Get all webhooks in a workflow. It is categorised as a Read tool in the Mcp N8n Server MCP Server, which means it retrieves data without modifying state.
Register the Mcp N8n Server MCP server in PolicyLayer and add a rule for list_workflow_webhooks: 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 Mcp N8n Server. Nothing to install.
list_workflow_webhooks 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_workflow_webhooks 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_workflow_webhooks. 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_workflow_webhooks is provided by the Mcp N8n Server MCP server (@ahmad.soliman/mcp-n8n-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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