Return counts of catalogued nodes, triggers, and credentials from the imported n8n catalog.
AI agents call get_catalog_stats to retrieve information from N8n Workflow Tester Safe without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and returns aggregate statistics from a catalog without any side effects. It retrieves information only, matching the 'Read' category definition of data retrieval without side effects. The low severity reflects minimal blast radius—misuse would only expose already-catalogued metadata counts, not executing workflows or modifying data.
From the tool's definition Tool description states it 'Return counts of catalogued nodes, triggers, and credentials' - a purely retrieval operation with no modification, deletion, or execution capability.
Attacks that exploit this kind of access
Return counts of catalogued nodes, triggers, and credentials from the imported n8n catalog. It is categorised as a Read tool in the N8n Workflow Tester Safe MCP Server, which means it retrieves data without modifying state.
Register the N8n Workflow Tester Safe MCP server in PolicyLayer and add a rule for get_catalog_stats: 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 Workflow Tester Safe. Nothing to install.
get_catalog_stats 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 get_catalog_stats 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 get_catalog_stats. 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.
get_catalog_stats is provided by the N8n Workflow Tester Safe MCP server (souzix76/n8n-workflow-tester-safe). 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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