Under the hood
The 'cannot read file' permission-denial message can now name a different failed field, not just file_path
What
The internal message shown when Claude is denied permission to read a file ("cannot read file ... the file could not be examined") used to always refer to a hardcoded file_path field. It now accepts a parameter name, defaulting to file_path, so the same message can be reused when a different parameter is the one that failed.
Why
This is a small internal cleanup that lets one deny-message helper serve tools or parameters other than file_path, rather than duplicating the message text for each one.