mathiasandClaude Opus 4.8
4678d473b8
The baseUrl fetch mapped every non-200 to SourceNone, recording a 429 as a permanent "no captions". 429 is the IP being rate-limited, not an absent transcript. Return SourceRateLimited (still a graceful degrade, no error) so the runner can retry after a backoff window. Other non-200s (403/404/5xx) stay SourceNone. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>