Critical-risk tools in n8n MCP Server
6 of the 39 tools in n8n 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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n8n_delete_credentialDestructivePermanently delete a credential. Workflows using it will break. Args: - id (string): Credential ID to delete
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n8n_delete_executionDestructivePermanently delete a specific execution and its data. Args: - id (string): Execution ID to delete
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n8n_delete_tagDestructiveDelete a tag. Removes it from all workflows that use it. Args: - id (string): Tag ID to delete
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n8n_delete_variableDestructiveDelete a workflow variable. Workflows referencing it will get undefined. Args: - id (string): Variable ID to delete
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n8n_delete_workflowDestructivePermanently delete a workflow by ID. This action is irreversible. Consider using n8n_archive_workflow for soft-delete instead. Args: - id (string): Workflow ID to delete
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n8n_uninstall_community_packageDestructiveUninstall a community node package. Workflows using its nodes will break. Args: - packageName (string): npm package name to uninstall
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.