Downloads a Google Spreadsheet as CSV or Excel (XLSX) format and saves it to the local filesystem. CSV exports a single sheet; XLSX exports the entire workbook.
AI agents call downloadSpreadsheet to retrieve information from Google Workspace MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and exports existing spreadsheet data in standard formats (CSV/XLSX) without creating, modifying, or deleting any data in Google Workspace. The action is read-only with no side effects on the source. Severity is low because the blast radius of misuse is confined to local file creation; no data is destroyed, financial transactions initiated, or irreversible changes made to Workspace resources.
From the tool's definition Tool "downloads" spreadsheet data and "saves it to the local filesystem" — a one-way retrieval operation with no modification to source data.
Attacks that exploit this kind of access
Downloads a Google Spreadsheet as CSV or Excel (XLSX) format and saves it to the local filesystem. CSV exports a single sheet; XLSX exports the entire workbook. It is categorised as a Read tool in the Google Workspace MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Google Workspace MCP Server MCP server in PolicyLayer and add a rule for downloadSpreadsheet: 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 Google Workspace MCP Server. Nothing to install.
downloadSpreadsheet is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the downloadSpreadsheet 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 downloadSpreadsheet. 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.
downloadSpreadsheet is provided by the Google Workspace MCP Server MCP server (pm990320/google-workspace-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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