Git Auto Commit (GAC) – LLM-powered Git commit command line tool
GAC is a tool I built to help users spend less time summing up what was done and more time building. It uses LLMs to generate contextual git commit messages from your code changes. And it can be a drop-in replacement for `git commit -m "..."`. Example: feat(auth): add OAuth2 integration with GitHub and Google - Implement OAuth2 authentication flow - Add provider configuration for GitHub and Google - Create callback handler for token exchange - Update login UI with social auth buttons Don't like it? Reroll with 'r', or type `r "focus on xyz"` and it rerolls the commit with your feedback. You…
In plain words
Git Auto Commit (GAC) is a command-line tool that uses large language models to automatically generate git commit messages from code changes. It works as a drop-in replacement for standard git commit commands and supports 14 different AI providers, including local options like Ollama and cloud services like OpenAI and Anthropic. Users can regenerate messages with feedback or customize the output, reducing time spent writing commit summaries.
written from the facts on this page · September 2026
From the sources
In the maker’s words, at launch
GAC is a tool I built to help users spend less time summing up what was done and more time building. It uses LLMs to generate contextual git commit messages from your code changes. And it can be a drop-in replacement for `git commit -m "..."`. Example: feat(auth): add OAuth2 integration with GitHub and Google - Implement OAuth2 authentication flow - Add provider configuration for GitHub and Google - Create callback handler for token exchange - Update login UI with social auth buttons Don't like it? Reroll with 'r', or type `r "focus on xyz"` and it rerolls the commit with your feedback. You can try it out with uvx (no install): uvx gac init # config wizard uvx gac Note: `gac init` creates a .gac.env file in your home directory with your chosen provider, model, and API key. Tech details: 14 providers - Supports local (Ollama & LM Studio) and cloud (OpenAI, Anthropic, Gemini, OpenRouter, Groq, Cerebras, Chutes, Fireworks, StreamLake, Synthetic, Together AI, & Z.ai (including their extremely cheap coding plans!)). Three verbosity modes - Standard with bullets (default), one-liners (`-o`), or verbose (`-v`) with detailed Motivation/Architecture/Impact sections. Secret detection - Scans for API keys, tokens, and credentials before committing. Has caught my API keys on a new project when I hadn't yet gitignored .env. Flags - Automate common workflows: `gac -h "bug fix"` - pass hints to guide intent `gac -yo` - auto-accept the commit message in one-liner mode `gac -ayp` - stage all files, auto-accept the commit message, and push (yolo mode) Would love to hear your feedback! Give it a try and let me know what you think! <3 GitHub: https://github.com/cellwebb/gac
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