Delete a chart by its title/name
AI agents call delete_chart to permanently remove resources in Excel MCP Server — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
This tool removes data artifacts (charts) from Excel workbooks in a manner that cannot be automatically undone. While less severe than deleting raw data rows, chart deletion is irreversible and represents loss of information structure. The high severity reflects the potential for an AI agent to mistakenly delete important visualization assets from a user's workbook, requiring manual recovery or reconstruction.
From the tool's definition Tool name is 'delete_chart' and description states 'Delete a chart by its title/name'. The verb 'delete' combined with the irreversible nature of removing a chart from a workbook indicates a destructive operation.
Attacks that exploit this kind of access
Delete a chart by its title/name. It is categorised as a Destructive tool in the Excel MCP Server MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Excel MCP Server MCP server in PolicyLayer and add a rule for delete_chart: 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 Excel MCP Server. Nothing to install.
delete_chart 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_chart 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_chart. 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_chart is provided by the Excel MCP Server MCP server (jauinones/xlsx-mcp). 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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