This is Claude Code, the one in your terminal, not the Claude app.
Turn it on
/output-style concise
Or run /config and pick Output style.
What changes
It leads with the answer and skips the narration. Same work, less reading. Ask for detail any time.
What doesn't
Warnings, errors and anything destructive still come through in full.
One project, or everywhere
It saves for the project you're in (.claude/settings.local.json). To make it your default everywhere, add this to your user settings file:
"outputStyle": "Concise"
Don't see it?
It needs Claude Code v2.1.237 or later. Run claude update.