#backoff

backon is a zero-dependency Python library for retry with exponential backoff, circuit breaker, hedging, and full async support. The evolution of backoff.

Claude API rate limits: Tier 1 = 50 RPM / 50K TPM / $100 daily. What triggers 429, retry-after backoff code, and how to reach Tier 4 in exactly 14 days.

First N failures are silent, then exponential backoff capped at 15 min. Why the status code must never distinguish locked vs wrong creds, and how to reset properly.

Introduction Polling asynchronous job statuses is a deceptively simple problem—until it...