Document two working rules: all work must be done in the normal (main)
worktree rather than a separate `.claude/worktrees` worktree, and a prompt
that lists several subtasks must run each subtask as its own subagent.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Document that a property/method which can live on an interface/class must be
declared there and overridden per implementation, instead of a common
extension that dispatches with a when over every subtype; shared logic goes
into a companion-object function or an internal top-level helper.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
