Other issues have established standards for configuration files and filenames.
Can find by searching for issues and change records.
But should be all in one place.
Document already decided things in a coding standard page.
find the related issues and change records and link to them here and/or when updating the doc page in the revision log.
Related issues and change records and other things to aggregate
- change record Entity type and bundle machine names have a maximum length of 32 characters
- change record Name length limits: extensions, ids and configuration file names
- Docs page Configuration Storage in Drupal 8
- Docs page Defining and using your own configuration in Drupal 8
User interface changes