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
unresolved. That is separate from the fix event. - Still open
- Nothing open on GitHub.
These issues and PRs concern a bug where the _stdio_children_dead() function has inverted logic, causing live stdio child processes to be reported as dead and MCP calls to fail immediately. Multiple fix attempts address correcting this inversion.
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From the close comments: superseded by another PR 1
-
#95696 fix(mcp): correct inverted liveness logic in _stdio_children_dead() · superseded by another PR →
#94339
Closed issues · 1
- Closed#95668_stdio_children_dead() inverted since 95668f5e: live stdio child reported as dead, every stdio MCP call fast-fails
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structural links throughout): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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