Unverified50% confidenceSolutionExact time
The new version is able to recover missing text (including incomplete responses) from the Agent API's terminal events and output items, while avoiding duplication of content already received incrementally.
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
9/26/2026
First Seen
Valid until: 12/25/2026
Sources
Related Entities
Related Claims
UnverifiedThis update fixes issues in the Agent team feature including in-process teammate transcript messages being lost during long API retry waits, background sessions appearing as duplicate phantom twin instances in ListAgents, and sub-agents failing to be woken by completion notifications after resuming another agent via SendMessage73% similarUnverifiedWhen the API is unavailable, applications should implement graceful degradation by returning cached results, prompting users to retry, or switching to a fallback solution, rather than crashing directly69% similarUnverifiedv2.1.281 fixes multiple session-restoration bugs, including earlier turns being re-sent in altered form upon session resumption causing the API to discard reasoning chains, restored oversized sessions only recovering the last few messages, and broken prompt caching.66% similarUnverifiedTimeouts, rate limiting, and response format changes in external tools and APIs can directly cause an Agent to stall or go down the wrong branch.65% similarUnverifiedWhen an Agent detects a flaw in a plan and stops the change, it primarily halts irreversible operations (such as deleting data), while still allowing coding in a new branch or holding off on committing the code pending manual review.64% similar
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