MCP stdio command resolution on Windows PATHEXT
Cluster 56536 · mcp. Data as of
2 open items. Fix merged in #84429 on 12 Aug 2026. Check it covers your case.
The short answer
- Known?
- Yes. 5 related items grouped here, 1 issue already closed.
- Fix event
- A fix was merged to main in PR #84429. Check it covers your case. No release data is tracked.
- Tracker
- The maintainers' tracker marks this
resolved, deciding PR #84429. That is separate from the fix event. - Still open
- 0 issues and 2 PRs.
These issues and PRs address a bug where MCP stdio command resolution ignores the PATHEXT environment variable on Windows, with fixes covering uv/uvx path lookup and cross-platform python command handling.
Open issues0
Open PRs2
Fixes on record
-
#84429 fix: Windows MCP PATHEXT resolution + python3→python in cross-platform skills
files:
optional-skills/blockchain/evm/SKILL.md,optional-skills/blockchain/hyperliquid/SKILL.md,optional-skills/blockchain/solana/SKILL.md,optional-skills/creative/concept-diagrams/SKILL.md,optional-skills/creative/tldraw-offline/SKILL.md,optional-skills/data-science/jupyter-notebook/SKILL.md,optional-skills/devops/pinggy-tunnel/SKILL.md,optional-skills/finance/stocks/SKILL.md,optional-skills/gaming/pokemon-player/SKILL.md,optional-skills/health/fitness-nutrition/SKILL.md,optional-skills/mcp/fastmcp/SKILL.md,optional-skills/migration/openclaw-migration/SKILL.md,optional-skills/productivity/telephony/SKILL.md,optional-skills/research/domain-intel/SKILL.md,optional-skills/research/drug-discovery/SKILL.md,optional-skills/research/osint-investigation/SKILL.md,optional-skills/security/godmode/SKILL.md,optional-skills/security/oss-forensics/SKILL.md,optional-skills/security/unbroker/SKILL.md,optional-skills/software-development/ast-grep/SKILL.md(+23 more)
1 PR closed without merging
From the close comments: other 1
- #56594 fix(mcp): honor subprocess PATHEXT for stdio resolution · other
Closed issues · 1
- Closed#56536MCP stdio resolution ignores env PATHEXT on Windows
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structural links throughout): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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
0.40: 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
- mcp
- Merged PRs
- #84429
- Closed issues
- 1
- Attempts
- 1 PR closed without merging
- Fix link checked
- 12 Aug 2026