ai-agent

lumen: Streamline Git Diffs and AI‑Powered Commits from the CLI

Name: lumen: Streamline Git Diffs and AI‑Powered Commits from the CLI
Author: jnsahaj

For founders who code fast, lumen turns complex diffs into clear summaries and lets you generate commit messages with AI—directly in your terminal. 2.9k+ GitHub stars.

From the repo · “Beautiful git diff viewer, generate commits with AI, get summary of changes, all from the CLI”

2,899 stars+13★ this week158 forksRustGuide quality 9/10 · reviewed Oct 7Updated 9/17/2026100% free · open source

What it does

Lumen generates AI-powered commit messages and change summaries from the command line, making it easier for founders to manage their Git repositories

When to use it

•When you need to quickly generate commit messages for a large number of code changes
•When you want to automate the process of summarizing changes in your Git repository
•When you need to review and understand the changes made to your codebase without manually reading through each commit

Ready-to-paste prompt

lumen commit -m 'feat: add new feature to the repository'

Heads up: Make sure you have Rust and Cargo installed on your system before attempting to install Lumen, as it is built with Rust and uses Cargo for package management

Saves to your device

Use with Claude

New

Skip the builder — one click puts this in Claude, Cursor, Antigravity and more.

✅ Light setup

Installs with a command or two; your AI agent can do it for you.

Try it instantly — no install

Claude Code

mkdir -p ~/.claude/skills/lumen && curl -fsSL https://workflowstacks.com/api/skills/lumen/claude-skill -o ~/.claude/skills/lumen/SKILL.md

Open in another AI app

Opens the app with this repo with the prompt ready to go — no copy-paste needed.

Connect the whole catalog (MCP)

claude mcp add --transport http workflowstacks https://workflowstacks.com/api/mcp

Adds a WorkflowStacks connector to Claude Code: search and load any skill here by chatting.

How lumen: Streamline Git Diffs and AI‑Powered Commits from the CLI works

Codeflow

Free to inspect

Lumen: Streamline Git Diffs and AI‑Powered Commits from the CLI is a large Rust project (~21k lines across 48 code files). Setup is light: installs like a normal app. Reading the code is optional. Last commit a month ago, MIT license, no tests found.

Size

Large codebase

~21k lines · 48 code files · ~3 h to skim

Setup

One-command install

Installs like a normal app. Reading the code is optional.

Runs on

Rust

No API keys detected

Rust 98%Shell 2%

Where to start reading

1
README.md
Start here — what it does and how to install it
2
src/main.rs
Where the program starts running
3
Cargo.toml
Dependencies and the commands it exposes

What's in each folder

src/Core code — the actual logic47 files

.github/CI / automation (GitHub Actions)1 files

READMENo tests foundThin docsCI checksMIT licenseUpdated 1 mo ago

Use with Claude

New

Skip the builder — one click puts this in Claude, Cursor, Antigravity and more.

✅ Light setup

Installs with a command or two; your AI agent can do it for you.

Try it instantly — no install

Claude Code

mkdir -p ~/.claude/skills/lumen && curl -fsSL https://workflowstacks.com/api/skills/lumen/claude-skill -o ~/.claude/skills/lumen/SKILL.md

Open in another AI app

Opens the app with this repo with the prompt ready to go — no copy-paste needed.

Connect the whole catalog (MCP)

claude mcp add --transport http workflowstacks https://workflowstacks.com/api/mcp

Adds a WorkflowStacks connector to Claude Code: search and load any skill here by chatting.

Quick Actions

Details

Creator

jnsahaj

Language

Rust

Do this with a working workflow

Pages we wrote and tested that put a skill like this to work — importable n8n templates, outcome guides and Claude Desktop configs.

Outcome guide

Automate your meeting summaries

A private form takes any transcript (from Zoom, Meet, Otter, Fireflies) and emails you back a structured summary: a TL;DR, the decisions made, and action items with owners.