OpenAI regex lookaround schema rejection and retry handling
Cluster 42631 · agent. Data as of
Nothing open on GitHub. Fix merged in #115853 on 19 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 #115853. Check it covers your case. No release data is tracked.
- Tracker
- The maintainers' tracker marks this
resolved, deciding PR #115853. That is separate from the fix event. - Still open
- Nothing open on GitHub.
These items concern OpenAI-compatible endpoints rejecting tool schemas that contain regex lookaround patterns. They explore classifying this rejection as recoverable and retrying requests with sanitized schemas.
Open issues0
Open PRs0
Fixes on record
-
#115853 fix(agent): strict OpenAI-compatible endpoints rejecting regex lookaround in tool schemas now retry with sanitized schemas (#42631, salvage #42635)
files:
agent/error_classifier.py,tests/agent/test_error_classifier.py
1 PR closed without merging
From the close comments: merged via another change 1
-
#42635 fix(agent): classify OpenAI regex lookaround schema rejection as recoverable · merged via another change →
1d6b56c,#115853,#42631,#42635
Closed issues · 1
- Closed#42631GPT/OpenAI-compatible endpoints reject tool schemas with regex lookaround pattern
How this cluster was grouped
-
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structural links throughout): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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
- #115853
- Closed issues
- 1
- Attempts
- 1 PR closed without merging
- Fix link checked
- 19 Sep 2026