CodexFix 🛠️

A powerful type-aware linter runner and Codex orchestrator that automatically fixes code issues using AI. CodexFix combines static analysis with OpenAI's Codex to provide intelligent, automated code improvements while preserving behavior.

⚠️ Warning: This tool was mostly implemented by VibeCoding 😊

Features

• 🔍 Integrated type checking and linting with mypy, pyright, and ESLint
• 🎯 Support for Python, TypeScript, and Dart/Flutter analysis
• 🤖 AI-powered automatic code fixes using OpenAI's Codex
• ⚡ Fast and efficient analysis with parallel processing
• 🔄 Iterative improvement with automatic re-analysis
• 🎨 Beautiful console output with rich formatting
• 📊 Comprehensive JSON reporting of fixed issues
• 🔌 Shell completion for Bash, Zsh, and Fish (v0.3.3+)
• 📦 Global installation support via Pix package manager

Installation

Prerequisites

OpenAI API Key

# You must have a valid OpenAI API key set in your environment
export OPENAI_API_KEY="your-openai-api-key"

# For Windows PowerShell
$env:OPENAI_API_KEY="your-openai-api-key"

# For Windows Command Prompt
set OPENAI_API_KEY=your-openai-api-key

Python Environment

# Install Python 3.13 or later
# macOS
brew install python@3.13

# Linux
sudo apt install python3.13 python3.13-venv python3.13-dev

# Create and activate a virtual environment
python3.13 -m venv venv
source venv/bin/activate

Install UV

# Install UV
curl -LsSf https://astral.sh/uv/install.sh | sh

# Or on macOS with Homebrew
brew install astral/tap/uv

Install Pix

# Install Pix
curl -LsSf https://astral.sh/pix/install.sh | sh

# Or on macOS with Homebrew
brew install astral/tap/pix

UV vs Pix

• UV: Fast dependency resolver and installer for project-level dependencies in virtual environments. Use UV for development work within specific projects.
• Pix: Global package manager for Python. Use Pix when you want to install command-line tools globally and make them available from any terminal.

For CodexFix:

• Use UV when working on CodexFix development or when you want to install it in a project-specific environment
• Use Pix when you want to use CodexFix as a global command-line tool

Install Required Tools

# Install analysis tools using UV (for project environments)
uv pip install mypy==1.8.0 pyright==1.1.350

# Or install analysis tools globally using Pix
pix install mypy==1.8.0 pyright==1.1.350

# TypeScript analysis tools
npm install -g typescript
npm install -g eslint @typescript-eslint/parser @typescript-eslint/eslint-plugin

# For Dart/Flutter analysis
# Install Flutter SDK from https://docs.flutter.dev/get-started/install

Install CodexFix

Install from PyPI

# Install the package using UV
uv pip install codexfix

# Install globally using Pix
pix install codexfix

Global Usage with Pix

Pix is a new package manager that provides a seamless global installation experience:

# Install CodexFix globally
pix install codexfix

# Run CodexFix from anywhere
codexfix --path /path/to/project

# Update to the latest version
pix update codexfix

# List globally installed packages
pix list

Note: Pix installs packages globally by default, making command-line tools like CodexFix available system-wide without virtual environments.

Install from Source

# Clone the repository
git clone https://github.com/yourusername/codexfix.git
cd codexfix

# Install in development mode using UV
uv pip install -e .

Building and Publishing

If you're a contributor or maintainer who wants to build and publish the package:

# Build the package
uv build

# Publish to PyPI (requires appropriate credentials)
uv publish

# Test installation of the published package
uv run --with codexfix --no-project -- python -c "import codexfix"

Note: For publishing to PyPI, you'll need to set up authentication using token:

# Set the PyPI token
export UV_PUBLISH_TOKEN="your-pypi-token"

Usage

# Run analysis only on current directory (without fixing)
codexfix

# Apply automatic fixes with Codex
codexfix --applyFix

# Run on specific path
codexfix --path /path/to/project

# Generate a comprehensive report
codexfix --applyFix --report issues_report.json

# Run with specific language
codexfix --language python  # or typescript, dart

# Different approval modes
codexfix --approval-mode suggest  # or auto-edit, full-auto

# Install shell completion (bash, zsh, or fish)
codexfix --install-completion bash

Shell Completion

CodexFix v0.3.0+ provides built-in shell completion scripts for Bash, Zsh, and Fish shells to make command-line usage more convenient:

# Install Bash completion
codexfix --install-completion bash

# Install Zsh completion
codexfix --install-completion zsh

# Install Fish completion
codexfix --install-completion fish

After installing shell completion, you can press Tab to complete CodexFix command-line options and arguments:

# Start typing and press Tab to see available options
codexfix --[TAB]

# Tab completion for option values
codexfix --language [TAB]  # Shows python, typescript, dart
codexfix --approval-mode [TAB]  # Shows suggest, auto-edit, full-auto

Configuration

CodexFix supports various configuration options:

• --path: Path to analyze (default: current directory)
• --language: Choose between 'python', 'typescript', or 'dart' analysis (default: python)
• --approval-mode: Control how fixes are applied ('suggest', 'auto-edit', 'full-auto')
• --max-iterations: Stop after N Codex rounds (default: 3)
• --model: Specify custom Codex model
• --verbose: Enable verbose debug output
• --applyFix: Apply automatic fixes using Codex (default: only show diagnostics)
• --analyze: Severity levels to analyze ('default' or 'all')
• --report: Filename to save a comprehensive report of all fixed issues

Requirements

• Python 3.13+
• UV package manager (https://astral.sh/uv)
• Pix package manager (https://astral.sh/pix)
• OpenAI API key for Codex integration
• CodexFix 0.3.3+ for shell completion support
• For Python analysis:
  • mypy (uv pip install mypy)
  • pyright (uv pip install pyright)
• For TypeScript analysis:
  • TypeScript (npm install -g typescript) - must be installed first
  • ESLint (npm install -g eslint)
  • TypeScript ESLint plugins (npm install -g @typescript-eslint/parser @typescript-eslint/eslint-plugin)
• For Dart analysis:
  • Flutter SDK (https://docs.flutter.dev/get-started/install)

Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

License

This project is licensed under the MIT License - see the LICENSE file for details.

Changelog

See CHANGELOG.md for a list of changes and version history.