When Claude's servers are at capacity, Claude Code retries a failed request up to 10 times with exponential backoff, then shows you the error. If you started a long job and went to bed, that error is where the job stops.
A 529 overloaded error is not your usage limit and doesn't count against your quota. Here's how to keep an unattended run waiting it out.
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Unlocks: Step 1: turn on the retry watchdog · Step 2: cap how long it waits · The catch · Sources
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