Commit Message Guidelines The article outlines strict formatting rules for Git commit messages, which consist of a required header (with optional scope) and optional body and footer, with each line limited to 100 characters. The header follows the format `(): `, where the type must be one of specific categories like `feat`, `fix`, or `docs`, and the scope typically refers to an affected npm package name. These guidelines aim to improve readability and are used by Angular to automatically generate changelogs.