List all Google Spreadsheets accessible to the authenticated 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 queries and returns metadata about spreadsheets without modifying, executing, or deleting anything. It is a straightforward data retrieval operation that matches the 'Read' category pattern. Severity is low because listing accessible resources poses minimal direct risk, though information disclosure could inform further attacks in a multi-step scenario.
From the tool's definition Tool name 'list_spreadsheets' and description 'List all Google Spreadsheets accessible to the authenticated user' indicate a retrieval operation with no side effects.
Attacks that exploit this kind of access
List all Google Spreadsheets accessible to the authenticated 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 (nileshphapale142/sheet-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.
Teams ship this data inside their own products. See what a licence covers →