You'll noticeTier: how much it should matter to you
1Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
PermissionsArea: what it touches
ImprovementsKind: in v2.1.323,
ImprovementsSection of the release
What
A deny rule is a permission setting that blocks Claude from touching certain files or folders. The tools Claude uses to read, write and edit files, and to edit notebooks, check each request before acting on it.
That check now looks at your deny rules first. If the path is blocked, the request is rejected right away and marked as denied by a permission rule, before any of the other path checks run.
Why
Requests aimed at files you have blocked are turned away at the earliest step.
