Nine test files each rolled their own isolation, and every one of them
moved HOME alone. On Windows that left them pointed at the real profile:
the init suite merged hooks into the real ~/.codex/config.toml, the
instructions suite handed the real home to SyncGlobalSkills, which
prunes shipped skills out of ~/.claude/skills, and the platform suite
ran MigrateToUnifiedHome against the developer's real ~/.config/gortex.
The platform and config tests were not merely leaking either — they
assert Home() resolves to <temp>/.gortex, which cannot hold on Windows
while the home lookup ignores HOME. They fail there today.
No behaviour changes on Unix; the local clearXDG and isolateInitTestEnv
helpers give way to the shared ones so a tenth copy is not written next.
Andrey Kumanyaev
a9bf2f6fed