add-dart-lint-validation-rule Skill

Source

• Creator: flutter
• Repository: flutter/agent-plugins
• Skill file: tool/dart_skills_lint/.agents/skills/add-dart-lint-validation-rule/SKILL.md

What it does

Instructions for adding a new validation rule and CLI flag to dartskillslint. Use this skill when asked to create a new rule that validates aspects of skills (like frontmatter metadata).

Skill instructions

Add a New Validation Rule and Flag Use this skill when you need to add a new validation rule to the dartskillslint package, expose it as a toggleable CLI flag, and verify its behavior. --- 🛠️ Step-by-Step Implementation 1. Create the Rule Class Create a new file in lib/src/rules/ extending SkillRule. [!TIP] If your rule expects a specific structure in the skill's YAML frontmatter (e.g., inside metadata), document this structure clearly in the class Dart docstring. dart // lib/src/rules/mynewrule.dart import '../models/analysisseverity.dart'; import '../models/skillcontext.dart'; import '../models/skillrule.dart'; import '../models/validationerror.dart'; class MyNewRule extends SkillRule { MyNewRule({super.severity}); @override Future<List<ValidationError validate(SkillContext context) async { final errors = <ValidationError[]; // Add validation logic here using context.rawContent or context.directory return errors; } } Accessing YAML Frontmatter If your rule needs configuration from t