Having a limitation on the length of the title for your API helps provide constraints for teams naming it, but also keep consistent with other APIs from across teams
OpenAPI Info Title Length Error
Message: Info Title MUST Be Less Than 50 Characters
Policies
Title of APIs
The title in your OpenAPI is the name that shows up everywhere -- in docs, catalogs, and code generation. Getting the casing, length, and clarity right here sets the tone for everything.