kernel_operational_surgeon · n8n Architect MCP Server MCP

WHAT IT DOES

What kernel_operational_surgeon does on n8n Architect MCP Server

AI agents call kernel_operational_surgeon to retrieve information from n8n Architect MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

WHY IT NEEDS A POLICY

Why kernel_operational_surgeon needs a policy

Even though kernel_operational_surgeon only reads data, uncontrolled read access leaks sensitive information and racks up API costs — an agent caught in a retry loop can make thousands of calls a minute without anyone noticing.

Attacks that exploit this kind of access

Questions about kernel_operational_surgeon

What does the kernel_operational_surgeon tool do? +

kernel_operational_surgeon. It is categorised as a Read tool in the n8n Architect MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on kernel_operational_surgeon? +

Register the n8n Architect MCP Server MCP server in PolicyLayer and add a rule for kernel_operational_surgeon: 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 n8n Architect MCP Server. Nothing to install.

What risk level is kernel_operational_surgeon? +

kernel_operational_surgeon is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit kernel_operational_surgeon? +

Yes. Add a rate_limit block to the kernel_operational_surgeon 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.

How do I block kernel_operational_surgeon completely? +

Set action: deny in the PolicyLayer policy for kernel_operational_surgeon. 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.

What MCP server provides kernel_operational_surgeon? +

kernel_operational_surgeon is provided by the n8n Architect MCP Server MCP server (srandres629/n8n_dev_mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.