Delete stored tokens. Re-authenticate via
AI agents call oura_clear_auth to permanently remove resources in Oura Ring — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
Clearing stored authentication tokens is a destructive operation that cannot be easily undone without manual user intervention or re-authentication. While not directly harmful to user data, deleting auth state can disrupt service continuity and force re-authentication workflows.
From the tool's definition Tool name 'oura_clear_auth' combined with description 'Delete stored tokens' explicitly performs an irreversible deletion action.
Attacks that exploit this kind of access
Delete stored tokens. Re-authenticate via. It is categorised as a Destructive tool in the Oura Ring MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Oura Ring MCP server in PolicyLayer and add a rule for oura_clear_auth: 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 Oura Ring. Nothing to install.
oura_clear_auth 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 oura_clear_auth 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 oura_clear_auth. 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.
oura_clear_auth is provided by the Oura Ring MCP server (@yasuakiomokawa/oura-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
oura_clear_auth is one line of Oura Ring's registry record.
The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.
Teams ship this data inside their own products. See what a licence covers →