Clear the stored auth token from MCP session memory.
AI agents call auth_logout to permanently remove resources in Mcp — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
Clearing an auth token is a non-reversible action that terminates the authenticated session. The token is deleted/purged from memory, which cannot be undone without re-authenticating. This could disrupt ongoing operations and deny access if misused by an AI agent. While not as severe as data deletion, it is still an irreversible state change closer to Destructive than Write.
From the tool's definition 'Clear the stored auth token from MCP session memory' — irreversibly removes authentication credentials from the session
Attacks that exploit this kind of access
Clear the stored auth token from MCP session memory. It is categorised as a Destructive tool in the Mcp MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the MCP server in PolicyLayer and add a rule for auth_logout: 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. Nothing to install.
auth_logout 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 auth_logout 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 auth_logout. 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.
auth_logout is provided by the MCP server (victormyschik/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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