List all accessible Shared Drives
AI agents call drive_shared_drives_list 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 queries and returns information about accessible Shared Drives without creating, modifying, deleting, or executing any operations. It is a straightforward read-only operation that retrieves metadata about drive resources. The blast radius is minimal as it only exposes existing drive information already accessible to the authenticated user.
From the tool's definition Tool name contains 'list' and description states 'List all accessible Shared Drives' — a pure retrieval operation with no modifications or side effects.
Attacks that exploit this kind of access
List all accessible Shared Drives. 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_shared_drives_list: 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_shared_drives_list 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_shared_drives_list 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_shared_drives_list. 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_shared_drives_list 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.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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