Native Responses preflight token counting bug fixes
Cluster 96155. Data as of
Nothing open on GitHub. Fix merged in #96644 on 28 Aug 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 #96644. Check it covers your case. No release data is tracked.
- Tracker
- The maintainers' tracker marks this
resolved, deciding PR #96644. That is separate from the fix event. - Still open
- Nothing open on GitHub.
A bug where native Responses API preflight checks counted unpruned or durable history instead of pruned wire tokens, causing compression to trigger prematurely around 152K effective input. The members cover the bug report and associated fixes for Codex sessions.
Open issues0
Open PRs0
Fixes on record
-
#96644 fix(agent): native-compaction Codex sessions no longer false-trigger local compression (#96155, salvage #96217)
files:
agent/chat_completion_helpers.py,agent/codex_responses_adapter.py,agent/turn_context.py,run_agent.py,tests/agent/test_native_preflight_estimate.py
1 PR closed without merging
From the close comments: merged via another change 1
-
#96217 fix(agent): count native Responses preflight against pruned wire · merged via another change →
#96644
Closed issues · 1
- Closed#96155[Bug]: Native Responses preflight counts unpruned durable history and triggers compression at ~152K effective input
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structural links throughout): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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
- Merged PRs
- #96644
- Closed issues
- 1
- Attempts
- 1 PR closed without merging
- Fix link checked
- 28 Aug 2026