清除 Excel 单元格范围内容.
AI agents call clear_excel_range to permanently remove resources in Office MCP Server — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
Clearing a range of Excel cells removes data that may not be recoverable depending on save state. This is a destructive operation with potentially high blast radius if an AI agent specifies a broad range (e.g., entire sheet), destroying valuable spreadsheet data irreversibly.
From the tool's definition '清除 Excel 单元格范围内容' — 'clear' (清除) indicates irreversible removal of cell range contents in an Excel file
Attacks that exploit this kind of access
清除 Excel 单元格范围内容. It is categorised as a Destructive tool in the Office MCP Server MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Office MCP Server MCP server in PolicyLayer and add a rule for clear_excel_range: 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 Office MCP Server. Nothing to install.
clear_excel_range 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 clear_excel_range 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 clear_excel_range. 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.
clear_excel_range is provided by the Office MCP Server MCP server (walkingzzzy/office-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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