Remove a permission (unshare) from a file or folder.
AI agents call gdrive_remove_permission to permanently remove resources in Mcp Google Gdrive — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
Removing permissions cuts off access for users or groups. While the file itself isn't deleted, the permission grant is destroyed and cannot be automatically restored, making this a destructive action. Misuse by an AI agent could inadvertently revoke access for critical collaborators across sensitive files or folders, with potentially high blast radius.
From the tool's definition 'Remove a permission (unshare) from a file or folder' — removing permissions is irreversible in that access is immediately revoked and the sharing state is lost without automatic recovery.
Attacks that exploit this kind of access
Remove a permission (unshare) from a file or folder. It is categorised as a Destructive tool in the Mcp Google Gdrive MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Mcp Google Gdrive MCP server in PolicyLayer and add a rule for gdrive_remove_permission: 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 Gdrive. Nothing to install.
gdrive_remove_permission is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the gdrive_remove_permission 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 gdrive_remove_permission. 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.
gdrive_remove_permission is provided by the Mcp Google Gdrive MCP server (sleepytimeshon/mcp-google-gdrive). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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