Fix truncated thinking-only continuations getting stuck
Cluster 90422 · agent. Data as of
Nothing open on GitHub. Fix merged in #100891 on 2 Sep 2026. Check it covers your case.
The short answer
- Known?
- Yes. 3 related items grouped here, 1 issue already closed.
- Fix event
- A fix was merged to main in PR #100891. Check it covers your case. No release data is tracked.
- Tracker
- The maintainers' tracker marks this
resolved, deciding PR #100891. That is separate from the fix event. - Still open
- Nothing open on GitHub.
These issues and PRs address a bug where length-truncated responses containing only thinking/reasoning content would wedge the continuation mechanism, causing it to stall even after multiple retry attempts. The fix targets reliable handling of such truncations in the agent loop.
Open issues0
Open PRs0
Fixes on record
-
#100891 fix(agent): thinking-only length truncations no longer wedge continuations (salvage #99622)
files:
agent/chat_completion_helpers.py,agent/conversation_loop.py,agent/transports/chat_completions.py,tests/run_agent/test_length_continuation_thinking_exhaustion.py,tests/run_agent/test_run_agent.py
1 PR closed without merging
From the close comments: merged via another change 1
-
#99622 fix(agent): thinking-only length truncations no longer wedge continuations · merged via another change →
c83ea9b,#100891
Closed issues · 1
- Closed#90422reasoning_effort: ultra reliably triggers Response remained truncated after 4 continuation attempts
How this cluster was grouped
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Link evidence (
structural links throughout): every member is connected by structural evidence: shared changed files, or a closing/superseded reference. -
Pairwise link density
0.67: the share of item pairs that carry a link, counting a structural link in full and a relevance-only link at 0.36.1.00means every pair is linked.
Pick up a Lab task
Check whether a fix covers the open issues here, with your own agent. Bring back evidence for maintainers.
Open the LabAt a glance
- Subsystem
- agent
- Merged PRs
- #100891
- Closed issues
- 1
- Attempts
- 1 PR closed without merging
- Fix link checked
- 2 Sep 2026