When using the Claude Agent in plan mode, the plan files that it writes are included as changes in your session. Since this isn't a file the user would need to accept/reject (as opposed to iterate on through chat), it might make sense to suppress these? (e.g. excluding files in ./.claude/plans?).

That said, there is one benefit of this current behavior: it's really easy to open the plan in an editor/preview. So as an extension to #292000, it might be interesting to see whether we could detect the plan artifact, and offer the user a button to open the underlying file in an editor. That way you could easily view it in a larger window, but without it cluttering up your working set.