أكمل مهامك الليلية رغم ازدحام الـ API مع retry watchdogKeep overnight Claude Code jobs alive through API congestion

Key terms

429 and 529

Status codes the API returns. 429 means too many requests or a usage limit. 529 means the API is at capacity for all users. A 529 is not your quota.

Retry

Claude Code resends a failed request by itself, waiting longer each time. By default it tries up to ten times, then shows you the error.

Unattended session

A session that runs while you are away, like a CI job or a scheduled script.

Retry watchdog

A mode that keeps retrying 429 and 529 capacity errors without a limit instead of stopping after ten tries.

The steps

1. 1

   Step 1

   Know the failure before you change anything

   An overnight job dies at 3am because the API was busy for five minutes. It is the most common way unattended work breaks.

   The default: Claude Code retries up to ten times with growing waits, then shows the error and stops. You are asleep.

   The official errors page documents the fix: an environment variable called CLAUDE_CODE_RETRY_WATCHDOG.

   code.claude.com