msg-rocket: From Diff to Decision with GitHub Copilot CLI

Published: (February 1, 2026 at 11:52 AM EST)
2 min read
Source: Dev.to

Source: Dev.to

What I Built

msg-rocket is a command‑line tool and a wrapper around GitHub Copilot CLI and git that helps increase productivity and improve code quality.

  • Written in vanilla JavaScript (Node.js standard libraries only, zero external dependencies).
  • Provides five focused commands:
CommandDescription
📝 commitGenerates commit messages from staged changes. Runs interactively by default, letting you edit the message before committing or aborting.
🔄 uptodateUpdates your branch with the latest changes from the remote main while preserving local work.
👀 reviewReviews staged changes with a focus on clean code, performance, or security (selectable via flags).
cleanDetects obvious debug artifacts (e.g., console.log, debugger) in the staged diff.
📏 standardChecks staged changes against team‑specific coding standards defined in a configurable file (.txt, .md, etc.).

Each command (except uptodate) uses a specially tailored prompt written to a temporary file and passed to copilot -p, making GitHub Copilot CLI a visible part of the workflow.

Demo

demo msg-rocket git flow

  • 🚀 App repo:
  • ▶️ Demo GIF:

Installation

npm install -g msg-rocket

Playground App

To test msg-rocket’s capabilities, a simple playground repository called vibe-coded was created. It’s a minimal Node.js HTTP server (no frameworks) designed to simulate realistic development scenarios. Feel free to explore the repo and try the tool on it.

My Experience with GitHub Copilot CLI

I used GitHub Copilot CLI in two ways:

  1. Code generation for small parts or whole features based on well‑defined prompts.

    • Prompts are available in the repository:
  2. Embedded collaborator within msg-rocket, where almost every command invokes the CLI.

Struggles Encountered

  • With free models, the command copilot -p @path-to-file.prompt.md sometimes fails to open the file and instead asks what to do with it.
  • Occasionally the CLI “flickers” when selecting “No, and tell Copilot what to do differently (Esc to stop)”.
  • Holding Backspace can insert the ⌫ Unicode character instead of deleting input.

Positive Highlights

  • The CLI feels like a teammate rather than a one‑off command, making the development process more collaborative.
  • An Easter‑egg command inspired by a favorite movie scene is included for fun.
  • Tip: Curious users can explore beyond the documented commands, and the Easter‑egg GIF is available here: .

Overall, despite occasional quirks, GitHub Copilot CLI proved to be a powerful addition to a terminal‑centric workflow, serving both as a code generator and a collaborative partner.

Back to Blog

Related posts

Read more »

Intent and Spec

What is intent? What is a spec? Intent is the expression of the purpose a system must have, the need it must satisfy, the objective it must achieve. It doesn't...

Introducing the new v0

Since v0 became generally available in 2024, more than 4 million people have used it to turn their ideas into apps in minutes. v0 has helped people get promotio...