What
Claude Code has an internal check that recognises project configuration files by name. That check now matches only one config file name and its variants. The broader list, which includes names starting with .config.json. and other prefixes, moved into a new, separate check that also calls the narrow one.
Why
In practice, places in Claude Code that want only the single config file and places that want the whole family of related files can now ask different questions.
Something disagreesSomething we can check disagrees with this entry, or the writer said they could not settle it.
The writer flagged doubt
The finding does not say which file name the narrowed check matches or which features use each check.