Refactor Assistant

Code review yourself before anyone else does. Point this at a file and get specific refactoring suggestions with diffs.

One command. Zero config. Just works.

Quick Start

npx ai-refactor src/utils.ts

What It Does

Analyzes code for improvement opportunities
Shows colored diffs for suggested changes
Focuses on readability and patterns
Can apply changes automatically

Usage Examples

# See suggestions
npx ai-refactor src/utils.ts

# Apply changes directly
npx ai-refactor src/utils.ts --apply

# Focus on specific area
npx ai-refactor src/api.ts --focus "error handling"

Best Practices

Review before applying - verify suggestions make sense
Commit first - have a clean state to diff against
Focus on one thing - don't refactor everything at once
Run tests after - make sure nothing broke

When to Use This

Code review prep
Cleaning up old code
Learning better patterns
Technical debt sprints

Part of the LXGIC Dev Toolkit

This is one of 110+ free developer tools built by LXGIC Studios. No paywalls, no sign-ups, no API keys on free tiers. Just tools that work.

Find more:

GitHub: https://github.com/LXGIC-Studios
Twitter: https://x.com/lxgicstudios
Substack: https://lxgicstudios.substack.com
Website: https://lxgicstudios.com

Requirements

No install needed. Just run with npx. Node.js 18+ recommended. Needs OPENAI_API_KEY environment variable.

npx ai-refactor --help

How It Works

Reads your file, sends it to GPT-4o-mini for analysis, and shows refactoring suggestions as diffs. Looks at readability, duplication, modern patterns, performance, and type safety.

License

MIT. Free forever. Use it however you want.

Built by LXGIC Studios

GitHub: github.com/lxgicstudios/refactor-suggest
Twitter: @lxgicstudios

refactor-assist