Nothing open on GitHub. Fix merged in #94339 on 27 Aug 2026. Check it covers your case.
The short answer
0open issues
0open PRs
3items grouped
- Known?
- Yes. 3 related items grouped here, 1 issue already closed.
- Fix event
- A fix was merged to main in PR #94339. Check it covers your case. No release data is tracked.
- Tracker
- The maintainers' tracker marks this
resolved, deciding PR #94339. That is separate from the fix event. - Still open
- Nothing open on GitHub.
A bug where the _stdio_children_dead() function had an inverted liveness check, causing every stdio MCP call to fail-fast in oneshot sessions. The members cover the bug report and a corresponding fix.
Open issues0
Open PRs0
Fixes on record
-
#94339 fix(mcp): un-invert the stdio children liveness check
files:
tests/tools/test_mcp_stdio_children_dead.py,tools/mcp_tool.py
1 PR closed without merging
From the close comments: duplicate 1
-
#95144 fix(mcp): correct inverted liveness check in _stdio_children_dead (#94335) · duplicate →
#94339
Closed issues · 1
- Closed#94335[Bug] _stdio_children_dead() inverted liveness check fail-fasts every stdio MCP call in oneshot (-z) sessions
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structural links throughout): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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
- #94339
- Closed issues
- 1
- Attempts
- 1 PR closed without merging
- Fix link checked
- 27 Aug 2026