What probably matters to youSection of the release
What
There is a new setting, maxProseWidth. It takes a whole number of at least 40, meaning a number of terminal columns (character positions across the screen). When it is set, the written text in Claude's responses wraps at that width:
paragraphs
headings
lists
blockquotes
Tables and code blocks are not capped and still use the full width of your terminal. If a code block or table sits inside a blockquote, it breaks out to full width while the quoted text around it stays capped. The setting lives in the same settings file as syntaxHighlightingDisabled. If you leave it unset, which is the default, text uses the full terminal width as before.
Why
On a very wide terminal, long lines of text are hard to read. This lets you keep text at a comfortable line length without squeezing code and tables, which often need the extra room.
The entry above is what we published on the day. These lines were added later, as Anthropic's own pages caught up, and they sit beside the original rather than replacing it.
Confirmed sinceAnthropic's documentation has since written up maxProseWidth, on All settings.| [`maxProseWidth`](#maxprosewidth) | Cap how wide the prose in Claude's responses runs in a wide terminal | Interface and terminal | Any file |settings-referencesee the edit
How sure we are
Two sources agreeTwo things we can check say the same as this entry.
Anthropic's documentation agreesAnthropic's documentation has since written up maxProseWidth, on All settings.
Anthropic's release notes agreeAdded a maxProseWidth setting that caps the width of Claude's prose in wide terminals while tables and code blocks keep the full width
The name it cites is new in this buildNew in this build: maxProseWidth
