You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
EffortArea: what it touches
ImprovementsKind: in v2.1.312,
ImprovementsSection of the release
What
The effort level controls how much work the model puts into a reply. When you reset it to the default, Claude Code used to say "Effort level set to auto". It now names the default level actually in use. The message shown when CLAUDE_CODE_EFFORT_LEVEL is still controlling the session does the same.
Why
The message stays accurate when the default is something other than auto, so you can see which level you are really on.
One source agreesOne thing we can check says the same as this entry.
Anthropic's release notes agreeFixed the /model and /effort cache warning saying the re-read waits for your next message; a change made while Claude is working can trigger…
