Remove a permission from a file or folder, revoking access for a user, group, or domain. Use gd_list_permissions to find the permission_id first.
Part of the Google Drive server.
Free to start. No card required.
AI agents may call gd_unshare_file to permanently remove or destroy resources in Google Drive. Without a policy, an autonomous agent could delete critical data in a loop with no way to undo the damage. PolicyLayer blocks destructive tools by default and requires explicit human approval before enabling them.
Without a policy, an AI agent could call gd_unshare_file in a loop, permanently destroying resources in Google Drive. There is no undo for destructive operations. PolicyLayer blocks this tool by default and only allows it when a human explicitly approves the action.
Destructive tools permanently remove data. Block by default. Only enable with explicit approval workflows.
{
"version": "1",
"default": "deny",
"hide": [
"gd_unshare_file"
]
}See the full Google Drive policy for all 44 tools.
These attack patterns abuse exactly the kind of access gd_unshare_file gives an agent. Each links to the full case and the policy that stops it:
Other destructive tools across the catalogue. The same approach applies to each: deny by default, or require human approval.
Remove a permission from a file or folder, revoking access for a user, group, or domain. Use gd_list_permissions to find the permission_id first.. It is categorised as a Destructive tool in the Google Drive MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Google Drive MCP server in PolicyLayer and add a rule for gd_unshare_file: 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. Nothing to install.
gd_unshare_file 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 gd_unshare_file 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 gd_unshare_file. 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.
gd_unshare_file is provided by the Google Drive MCP server (@modelcontextprotocol/server-gdrive). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 44 Google Drive tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
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