Delete a node
AI agents call delete_node to permanently remove resources in AI Charts — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
Deleting a node from a diagram is an irreversible operation that cannot be undone through the tool interface. It removes data permanently from the chart structure. While the impact is scoped to diagram metadata rather than critical business data, the destructive nature and potential to corrupt diagrams by removing essential nodes warrants 'high' severity.
From the tool's definition Tool name is 'delete_node' with description 'Delete a node'. The verb 'delete' explicitly indicates irreversible removal of data (a node from a diagram structure).
Attacks that exploit this kind of access
Delete a node. It is categorised as a Destructive tool in the AI Charts MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the AI Charts MCP server in PolicyLayer and add a rule for delete_node: 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 AI Charts. Nothing to install.
delete_node is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the delete_node 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 delete_node. 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.
delete_node is provided by the AI Charts MCP server (tjameswilliams/ai-charts). 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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