list_spreadsheets
AI agents call list_spreadsheets to retrieve information from Mcp Google Sheets without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves or queries data about available spreadsheets without modifying any state. It has no side effects and poses minimal security risk. Low severity reflects the limited blast radius of accidental misuse (listing spreadsheets accessible to the authenticated user is informational only).
From the tool's definition Tool name 'list_spreadsheets' indicates enumeration/querying of spreadsheet resources. Description is empty, but the verb 'list' and sibling tools (add_columns, add_rows, batch_update, create_spreadsheet) show this server manages spreadsheet operations.
Attacks that exploit this kind of access
list_spreadsheets. It is categorised as a Read tool in the Mcp Google Sheets MCP Server, which means it retrieves data without modifying state.
Register the Mcp Google Sheets 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 Mcp Google Sheets. 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 Mcp Google Sheets MCP server (yardobr/mcp-google-sheets). 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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