Linting

Use this skill when configuring lint rules, fixing lint issues, or reviewing lint configuration changes.

Tools

• ESLint: code quality and correctness rules.
• Prettier: formatting (indentation, quotes, semicolons, line width).
• typescript-eslint: TypeScript-specific rules.

Configuration Principles

• Prettier handles all formatting. ESLint handles logic and correctness.
• No overlap: use eslint-config-prettier to disable ESLint rules that conflict with Prettier.
• Prefer rules that are auto-fixable.
• Every enabled rule must have a reason. No "enable everything" configs.

Key Rules

• no-console: warn (allow in development, catch in review).
• no-unused-vars: error (with _ prefix exemption for intentionally unused).
• @typescript-eslint/no-explicit-any: error.