Feedback-to-Rule Noise Guards: Stopping Agent Echoes and Tiny-Sample Alerts

How to prevent 3 high-risk tool calls from triggering 100% false alarm risk scores.

The Failure Mode

Autonomous feedback loops can over-fit on single-run edge cases, generating circular prevention rules from self-echoed errors or alerting 100% risk on 3 samples.

Architectural Resolution

ThumbGate enforces a 10-sample statistical threshold, whole-word semantic tag matching, and mutual exclusion on the event being captured before promoting any lesson into a blocking rule.

// Require statistically meaningful samples before firing risk alerts
if (sampleCount < 10) {
  return { alert: 'suppressed', reason: 'Insufficient sample threshold (N < 10)' };
}