Added
- Added native agent
fallbackModelssupport. Agents can now declare ordered backup models, and single, chain, parallel, and async/background runs retry on provider/model-style failures such as quota, auth, timeout, or provider/model unavailability.
Fixed
- Fallback attempts now preserve observability across sync and async execution: results, artifact metadata, async status, and run logs record attempted models and per-attempt outcomes instead of only the final pass.
- Child subagent runs now pass model selections through
--modelinstead of--models, so live execution pins the intended model correctly and end-to-end fallback behavior matches the validated test path.