Revoke Google authentication and clear stored credentials
AI agents call google_auth_revoke to permanently remove resources in Google — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
Revoking authentication and clearing credentials is a destructive operation that cannot be easily undone—the agent loses access to Google services and stored credentials are permanently removed. While not data deletion in the traditional sense, it is an irreversible action with significant operational impact.
From the tool's definition Tool name 'google_auth_revoke' combined with description 'Revoke Google authentication and clear stored credentials' indicates irreversible removal of authentication state and credential data.
Attacks that exploit this kind of access
Revoke Google authentication and clear stored credentials. It is categorised as a Destructive tool in the Google MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Google MCP server in PolicyLayer and add a rule for google_auth_revoke: 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. Nothing to install.
google_auth_revoke 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 google_auth_revoke 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 google_auth_revoke. 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.
google_auth_revoke is provided by the Google MCP server (robcerda/google-mcp-server). 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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