I mean it would be nice if the Claude and Codex CLIs had a setting to default to plan mode, every now and then I’m trying to put together a plan, only to realize that it’s not in plan mode and already making changes.
~/.claude/settings.json
{"permissions": {"defaultMode": "plan"}}I'll note this only applies to new sessions though – if you do /clear and start working on something else it doesn't re-apply plan mode (I kind of wish it did)