Critical-risk tools in n8n Workflow Builder MCP Server
5 of the 34 tools in n8n Workflow Builder MCP Server are classified as critical risk. This page profiles those tools specifically, with recommended policy actions and the attack patterns that target them.
Every operation listed below is an action PolicyLayer recommends controlling at the transport layer. Open any tool to see the full profile, risk score, and YAML policy snippet.
Tools at critical risk
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delete_credentialDestructiveDelete a credential by ID. This will remove the credential and make it unavailable for workflows. Use with caution as this action cannot be undone.
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delete_executionDestructiveDelete a workflow execution record from the n8n instance
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delete_tagDestructiveRemove unused tags from the system
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delete_workflowDestructiveDelete an n8n workflow
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remove_nodeDestructiveRemove a node from a workflow (also removes its connections)
Attacks that target this class
Critical-risk tools in any server share these documented attack patterns. Each links to the full case and the defensive policy.