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All of v2.1.118 Home All releases olderv2.1.117 v2.1.119newer
Claude Code v2.1.118

Auto Mode Classifier $defaults Inheritance

What

Agent definitions can now use the literal string "$defaults" in auto mode classifier sections to inherit built-in rules at a specific position.

Details
  • Works in allow, deny (soft_deny), and environment sections of the auto mode classifier
  • When $defaults is present, the built-in rules are inserted at that position in the list
  • Custom rules can appear before or after $defaults, enabling augmentation rather than replacement
  • The UI now distinguishes between modes: "Defaults also in effect:" (custom rules added alongside) vs "Defaults being replaced:" (custom rules replacing defaults)
Evidence

Variable definition do$ = "$defaults" and schema descriptions (search for "Include the literal string \"$defaults\" to inherit the built-in rules at that position").

Strings lifted out of the shipped bundle, so the claim above can be checked against them.

See this entry in the whole of v2.1.118 →