You can now pick a "Concise" output style so Claude leads with results and skips narration.
What's wrong with this entry?
A fifth built-in style joins Proactive, Explanatory and Learning. Described as "Claude responds tersely, leading with results and skipping preamble and narration", it tells the model to lead with the result, cut narration, answer simple questions in 1-3 sentences and never trade correctness for brevity. Nothing gates its registration, so anyone on this build can pick it from the output-style list unless output styles are turned off entirely.
- Registered as a built-in style with coding instructions retained, so normal engineering guidance still applies.
- Its system prompt is headed "# Concise Style Active" and states explicitly that it overrides more general communication guidance, backed by six rules plus a short reminder re-injected each turn.
- Reported in prompt telemetry under its own key rather than collapsing into the generic one.
Claude responds tersely, leading with results and skipping preamble and narration, The user chose brevity over narration. You should:
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
Related
Other releases about the same thing. Found by shared names or similar wording; neither means one caused the other.
-
v2.1.238
Output style reminders work for custom style names
Both mention output style
-
v2.1.238
Output style is attached only when the style actually loads
Both mention output style
-
v2.1.229
"Turn updates" narration style for Claude's replies
Both mention output style