Copilot Responses duplicate function call ID bugs
Cluster 94707 · agent. Data as of
Nothing open on GitHub. Fix merged in #135285 on 8 Oct 2026. Check it covers your case.
The short answer
- Known?
- Yes. 4 related items grouped here, 1 issue already closed.
- Fix event
- A fix was merged to main in PR #135285. Check it covers your case. No release data is tracked.
- Tracker
- The maintainers' tracker marks this
resolved, deciding PR #135285. That is separate from the fix event. - Still open
- Nothing open on GitHub.
These items address bugs where Responses API stream items with differing or rotating IDs cause function calls to be settled twice or lose their arguments. Fixes involve coalescing pending calls by call_id and preserving arguments across ID changes.
Open issues0
Open PRs0
Fixes on record
-
#135285 Copilot Responses tool calls no longer run twice with empty {} arguments (#94707, salvage #111505 + #94708)
files:
agent/codex_runtime.py,contributors/emails/[redacted:email],tests/agent/test_codex_responses_settle_pending_tool_calls.py,tests/agent/test_codex_stream_rotating_item_ids.py
2 PRs closed without merging
From the close comments: done elsewhere 1 · won't fix / by design 1
Closed issues · 1
- Closed#94707[Bug]: Copilot Responses settles one function call twice when added and done item IDs differ
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structural links throughout): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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
0.50: 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
- #135285
- Closed issues
- 1
- Attempts
- 2 PRs closed without merging
- Fix link checked
- 8 Oct 2026