get_node_specs

Get documentation/specs for a specific node type from n8n documentation.

Server n8n MCP Server sandreotti/n8n-mcp
Category Read
Risk class Low
Parameters 00 required

What get_node_specs does on n8n MCP Server

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

Why get_node_specs needs a policy

This tool only fetches and returns documentation about node types from n8n's reference material. It has no side effects, does not modify data, execute workflows, or perform destructive actions. It is a straightforward informational read operation with minimal risk.

From the tool's definition Tool retrieves documentation/specs for a node type - a query operation with no modification or execution. The description indicates it 'Get[s] documentation' which is a read-only retrieval action.

Questions about get_node_specs

What does the get_node_specs tool do? +

Get documentation/specs for a specific node type from n8n documentation. It is categorised as a Read tool in the n8n MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get_node_specs? +

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

What risk level is get_node_specs? +

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

Can I rate-limit get_node_specs? +

Yes. Add a rate_limit block to the get_node_specs 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 get_node_specs completely? +

Set action: deny in the PolicyLayer policy for get_node_specs. 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 get_node_specs? +

get_node_specs is provided by the n8n MCP Server MCP server (sandreotti/n8n-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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