The Windows skill variant had a PowerShell Step 1 but its later steps came
from the shared core fragment as bash-only shell (cat-piped interpreter
invocations, rm -f, find -delete). The skillgen renderer now translates the
composed core to PowerShell for powershell-shell platforms (here-string
interpreter invocations, Remove-Item cleanup); POSIX skills are unchanged
and step / #2490 parity is enforced by a generator check. Not a regression
from 0.9.35 (skill files were unchanged between 0.9.34 and 0.9.35).
Thanks @tannermosher2015-debug.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>