Get storage usage breakdown by file type
AI agents call drive_storage_breakdown to retrieve information from Google Drive 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 storage usage—a read-only query operation. It has no side effects, does not modify data, and poses minimal risk even if misused by an AI agent, as it only exposes usage statistics that are typically non-sensitive aggregate information.
From the tool's definition Tool name 'drive_storage_breakdown' and description 'Get storage usage breakdown by file type' indicate a query operation that retrieves aggregate storage statistics without modifying, deleting, or executing operations.
Attacks that exploit this kind of access
Get storage usage breakdown by file type. It is categorised as a Read tool in the Google Drive MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Google Drive MCP Server MCP server in PolicyLayer and add a rule for drive_storage_breakdown: 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 Drive MCP Server. Nothing to install.
drive_storage_breakdown 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_storage_breakdown 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_storage_breakdown. 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_storage_breakdown is provided by the Google Drive MCP Server MCP server (rishipradeep-think41/google-drive-mcp). 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.
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