You'll noticeTier: how much it should matter to you
1Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
SandboxArea: what it touches
ImprovementsKind: in v2.1.311,
ImprovementsSection of the release
What
When the Windows sandbox needs installing, Claude Code adjusts the install instructions it shows you. The sandbox is the protective boundary that limits what commands Claude runs can reach.
That adjustment now recognises both spellings of the install command:
npx sandbox-runtime windows-install
npx @anthropic-ai/sandbox-runtime windows-install
Before this change, only the first spelling was recognised.
Why
The install instructions you see on Windows now stay consistent whichever package name the hint uses.