Return a lightweight per-node trace summary for an execution.
AI agents call get_execution_trace 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.
The tool retrieves and returns trace data about a workflow execution. It does not modify, delete, or execute anything—it only queries and returns information about an existing execution. This is a read-only operation with minimal risk, even in a misuse scenario where an agent might exfiltrate execution traces to inspect workflow behavior or data flow.
From the tool's definition Tool name is 'get_execution_trace' and description states it will 'Return a lightweight per-node trace summary for an execution.' This is a retrieval operation with no side effects.
Attacks that exploit this kind of access
Return a lightweight per-node trace summary for an execution. 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_execution_trace: 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_execution_trace 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_execution_trace 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_execution_trace. 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_execution_trace 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.
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