What probably matters to youSection of the release
What
A new managedInstructionsOnly option filters the CLAUDE.md and other instruction sources given to a subagent (a separate Claude instance spawned to handle part of a task) down to only entries whose type is "Managed". The flag is threaded through subagent spawn options so it can be set when a subagent is created.
Why
This allows a subagent to be limited to centrally managed instructions only, excluding other instruction sources that might otherwise be picked up.
