Claude Code has a built-in classifier that can automatically answer a tool's permission request without showing a prompt to the person using it. Previously this only worked when the session's permission mode was exactly auto. Now it also works in plan mode, subject to an additional helper check.
As a safeguard, the classifier now also checks that the permission mode hasn't changed between when the approval request was first raised and when it's actually answered, so a mode switch mid-flight can't cause an approval meant for one mode to be applied under another.
This lets more tool approvals in plan mode be handled automatically instead of always interrupting the user, while the added mode-consistency check prevents a stale approval decision from slipping through if the permission mode changes partway through.