Terminal.skills
Skills/biome
>

biome

You are an expert in Biome, the Rust-based toolchain that replaces ESLint and Prettier with a single, fast tool. You help developers configure linting, formatting, and import sorting for JavaScript, TypeScript, JSX, JSON, and CSS — achieving 100x faster execution than ESLint+Prettier with zero configuration, unified diagnostics, and IDE integration.

#linter#formatter#rust#fast#eslint-alternative#prettier-alternative
terminal-skillsv1.0.0
Works with:claude-codeopenai-codexgemini-clicursor
Source

Usage

$
✓ Installed biome v1.0.0

Getting Started

  1. Install the skill using the command above
  2. Open your AI coding agent (Claude Code, Codex, Gemini CLI, or Cursor)
  3. Reference the skill in your prompt
  4. The AI will use the skill's capabilities automatically

Example Prompts

  • "Review the open pull requests and summarize what needs attention"
  • "Generate a changelog from the last 20 commits on the main branch"

Information

Version
1.0.0
Author
terminal-skills
Category
Developer Tools
License
Apache-2.0

Use Cases

→Set Up an Automated Code Quality Pipeline

Documentation

You are an expert in Biome, the Rust-based toolchain that replaces ESLint and Prettier with a single, fast tool. You help developers configure linting, formatting, and import sorting for JavaScript, TypeScript, JSX, JSON, and CSS — achieving 100x faster execution than ESLint+Prettier with zero configuration, unified diagnostics, and IDE integration.

Core Capabilities

Configuration

json
// biome.json
{
  "$schema": "https://biomejs.dev/schemas/1.9.4/schema.json",
  "organizeImports": { "enabled": true },
  "linter": {
    "enabled": true,
    "rules": {
      "recommended": true,
      "complexity": {
        "noForEach": "warn",
        "useSimplifiedLogicExpression": "warn"
      },
      "correctness": {
        "noUnusedVariables": "error",
        "noUnusedImports": "error",
        "useExhaustiveDependencies": "warn"
      },
      "suspicious": {
        "noExplicitAny": "warn",
        "noConsoleLog": "warn"
      },
      "style": {
        "noNonNullAssertion": "warn",
        "useConst": "error"
      },
      "nursery": {
        "useSortedClasses": "warn"
      }
    }
  },
  "formatter": {
    "enabled": true,
    "indentStyle": "space",
    "indentWidth": 2,
    "lineWidth": 100,
    "lineEnding": "lf"
  },
  "javascript": {
    "formatter": {
      "quoteStyle": "double",
      "semicolons": "always",
      "trailingCommas": "all",
      "arrowParentheses": "always"
    }
  },
  "files": {
    "ignore": ["node_modules", "dist", ".next", "*.gen.ts"]
  }
}

Usage

bash
# Format
biome format --write .

# Lint
biome lint .

# Both + import sorting
biome check --write .

# CI (check without writing)
biome ci .

# Migrate from ESLint/Prettier
biome migrate eslint --write
biome migrate prettier --write

IDE Integration

json
// .vscode/settings.json
{
  "editor.defaultFormatter": "biomejs.biome",
  "editor.formatOnSave": true,
  "editor.codeActionsOnSave": {
    "quickfix.biome": "explicit",
    "source.organizeImports.biome": "explicit"
  }
}

Installation

bash
npm install -D @biomejs/biome
npx @biomejs/biome init                   # Generate biome.json

Best Practices

  1. Replace ESLint+Prettier — Biome does both linting and formatting; remove separate configs, one tool
  2. biome check --write — Format + lint + organize imports in one command; use in pre-commit hooks
  3. biome ci — Use in CI pipelines; exits non-zero on any issue without modifying files
  4. Migrate command — Use biome migrate eslint to convert existing ESLint config; smooth transition
  5. Performance — Biome processes 1000+ files in <100ms (vs ESLint: 10-30 seconds); instant feedback
  6. Import sorting — Enable organizeImports; groups React, third-party, local imports automatically
  7. Nursery rules — Enable experimental rules for Tailwind class sorting (useSortedClasses)
  8. Git hooks — Use with lint-staged or husky; biome check --write --staged for pre-commit