What
The --tools flag lets you limit which built-in tools Claude can use, such as "Bash,Edit,Read". The code that reads this flag and warns you when an entry matches no built-in tool has been reorganized. The warning messages read the same as before.
Why
This is most likely a tidy-up with no visible effect. If you pass --tools, you should see the same behaviour and the same warnings.
Names in the bundle--tools
Something disagreesSomething we can check disagrees with this entry, or the writer said they could not settle it.
The writer flagged doubt
The typo warning may now be skipped for some names that appear in a particular list, which would be a small behaviour change.