Lists spreadsheets in the configured Drive folder or accessible by the user.
AI agents call list_spreadsheets to retrieve information from Google 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 retrieves metadata about existing spreadsheets without modifying, deleting, or executing operations. It is a pure read operation that returns information about accessible resources. The blast radius of misuse is minimal—an AI could enumerate spreadsheets but cannot alter data, execute code, or cause destructive changes.
From the tool's definition Tool name 'list_spreadsheets' and description 'Lists spreadsheets in the configured Drive folder or accessible by the user' indicate a query operation with no side effects.
Attacks that exploit this kind of access
Lists spreadsheets in the configured Drive folder or accessible by the user. It is categorised as a Read tool in the Google Sheets MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Google Sheets MCP Server MCP server in PolicyLayer and add a rule for list_spreadsheets: 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 Sheets MCP Server. Nothing to install.
list_spreadsheets 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 list_spreadsheets 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 list_spreadsheets. 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.
list_spreadsheets is provided by the Google Sheets MCP Server MCP server (santiagopereda/mcp_googlesheets). 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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