creating-rules

You can create coding standards rules by generating modular rule files with YAML frontmatter and path-specific scoping. This approach applies per-file or global guidelines to your Claude or Codex projects, organizing everything under the .claude/rules directory.

YAML frontmatter drives rule processing and discovery in Claude Code. It structures path patterns and metadata at the top of your rule files, ensuring your modular coding standards are correctly validated and applied to the intended file types.

To apply per-file coding guidelines, you create a new rule file under .claude/rules/ with appropriate frontmatter. You then define path patterns in the YAML metadata to scope the rules, targeting specific file types within your Codex project.

Yes, you can set up team coding standards quickly using templates for modular rule blocks. These blocks use path-scoped rules and YAML frontmatter to ensure file-type targeting and consistent guideline generation across your team's projects.

Yes, the rule creation workflow validates the YAML frontmatter structure, path patterns, and documentation layout. This ensures your generated coding standards are correctly formatted and function properly within the Claude Code environment.