Clear values from a specific range in a Google Sheet
AI agents call clear_range to permanently remove resources in Sheeter MCP Server — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
Clearing values from a range irreversibly removes data from the spreadsheet. While the sheet structure remains, the data itself is erased and cannot be recovered through this tool. This is a destructive operation as it permanently deletes cell values. Severity is high because an AI agent could wipe large ranges of data across a spreadsheet with no built-in undo mechanism via the API.
From the tool's definition Clear values from a specific range in a Google Sheet
Attacks that exploit this kind of access
Clear values from a specific range in a Google Sheet. It is categorised as a Destructive tool in the Sheeter MCP Server MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Sheeter MCP Server MCP server in PolicyLayer and add a rule for clear_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 Sheeter MCP Server. Nothing to install.
clear_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_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_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_range is provided by the Sheeter MCP Server MCP server (sarthaks97/sheeter-mcp-server). 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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