How to track Amazon Q Developer usage and avoid unexpected costs with Builder ID

Hello.

Usage Tracking: How can I monitor my current usage against the monthly limits for Builder ID accounts? I don't see a clear dashboard or counter showing my remaining quota.

If you're subscribed to Amazon Q Developer Pro, you can check your usage from the dashboard.
However, if you're using a free Builder ID, it's not linked to your AWS account, so tracking isn't possible.
https://docs.aws.amazon.com/amazonq/latest/qdeveloper-ug/dashboard-metrics-descriptions.html

Cost Management: While Builder ID is supposed to be free tier, I want to ensure I don't accidentally incur charges. What are the specific usage limits, and what happens when I exceed them?

If you have a free Builder ID, you will not be able to use Q Developer beyond the limit because it is not linked to an AWS account.
If you exceed the limit, a message will be displayed prompting you to subscribe to pro.

Monitoring Setup: Are there any AWS CloudWatch metrics, billing alerts, or other monitoring tools I can configure to track Amazon Q usage and get notified before hitting limits?

In the case of a free Builder ID, it is not linked to an AWS account, so I don't think it is possible to monitor limits.