Mocha retry configuration: missing flaky‑test threshold for retried passes

Goal

Define a policy that treats any test which succeeds only after one or more retries as flaky, so that CI can flag or quarantine it.

Constraints

• Mocha re‑executes the entire test function on each retry; side effects such as database writes run again unless made idempotent.
• Hooks (beforeEach/afterEach) also rerun per attempt, providing a natural reset point.
• The current attempt number is exposed via this.currentRetry(), but there is no configuration option to mark a retried pass as unhealthy.

Open questions

1. Is there a supported Mocha setting or reporter flag that classifies retried passes as flaky?
2. If not, what is the recommended pattern to implement a custom flaky‑test threshold without modifying Mocha core?
3. Does the behavior differ between Mocha 10.x and earlier versions that would affect a version‑agnostic solution?