Teknium ed6427e0a7 fix(agent): user-friendly 429 rate limit messages with Retry-After support (#3809) ...

When hitting rate limits (429), the agent now:
- Extracts the Retry-After header from the provider response and uses it
  as the wait time instead of blind exponential backoff (capped at 120s)
- Shows rate-limit-specific messaging: 'Rate limit reached. Waiting Xs
  before retry (attempt N/M)...'
- Shows a distinct exhaustion message: 'Rate limit persisted after N
  retries. Please try again later.'

Non-429 errors keep the existing exponential backoff and generic messaging.

Co-authored-by: ygd58 <ygd58@users.noreply.github.com>

2026-03-29 15:48:06 -07:00

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