List files in your Google Drive. Args: - page_size (number): Max files to return, 1-100 (default: 20) - page_token (string, optional): Pagination token for next page - order_by (string): Sort order (default:
AI agents call drive_list_files to retrieve information from Google Workspace without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves a list of files from Google Drive without creating, modifying, deleting, or executing any operations. It is a pure read operation analogous to a directory listing. The parameters (page_size, page_token, order_by) are all for filtering and sorting results, not mutating data. Severity is low because listing files has minimal blast radius—exposure reveals file metadata but causes no side effects.
From the tool's definition Tool name is 'drive_list_files' and description states 'List files in your Google Drive' with pagination parameters. These are query/retrieval operations with no modification or deletion capability.
Documented attack patterns abuse exactly the kind of access drive_list_files gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Google Workspace, and nothing reaches the server without passing your rules. This is the rule we recommend for drive_list_files:
{
"version": "1",
"default": "deny",
"tools": {
"drive_list_files": {}
}
}drive_list_files is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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List files in your Google Drive. Args: - page_size (number): Max files to return, 1-100 (default: 20) - page_token (string, optional): Pagination token for next page - order_by (string): Sort order (default:. It is categorised as a Read tool in the Google Workspace MCP Server, which means it retrieves data without modifying state.
Register the Google Workspace MCP server in PolicyLayer and add a rule for drive_list_files: 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. Nothing to install.
drive_list_files 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 drive_list_files 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 drive_list_files. 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.
drive_list_files is provided by the Google Workspace MCP server (everyinc/google-workspace-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Google Workspace, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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34 Google Workspace tools catalogued and risk-classified — across an index of 43,000+ MCP servers.