Reads data from a range in a spreadsheet. Returns rows as arrays. Use A1 notation for the range (e.g.,
AI agents call readSpreadsheet to retrieve information from Google Docs, Drive & Sheets MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a query operation that retrieves spreadsheet data without creating, modifying, deleting, or executing any operations. The read-only nature and lack of any destructive or side-effect-inducing capabilities place it firmly in the Read category with low severity risk.
From the tool's definition Tool name 'readSpreadsheet' and description 'Reads data from a range in a spreadsheet. Returns rows as arrays.' explicitly indicates data retrieval with no modification or side effects.
Attacks that exploit this kind of access
Reads data from a range in a spreadsheet. Returns rows as arrays. Use A1 notation for the range (e.g.,. It is categorised as a Read tool in the Google Docs, Drive & Sheets MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Google Docs, Drive & Sheets MCP Server MCP server in PolicyLayer and add a rule for readSpreadsheet: 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 Docs, Drive & Sheets MCP Server. Nothing to install.
readSpreadsheet 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 readSpreadsheet 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 readSpreadsheet. 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.
readSpreadsheet is provided by the Google Docs, Drive & Sheets MCP Server MCP server (rulords/google-docs-mcp-personal). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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