Yashwanth Byalla

Posted on Apr 2

AI Tool That Writes Pull Request Descriptions from Git Diff

#webdev #ai #programming #productivity

Writing pull request descriptions is important, but most developers don’t enjoy doing it. Many PRs end up with descriptions like:

"fixed bug", "updated API", "refactored code"

This slows down code reviews because reviewers don’t have enough context. Good PRs should include:

What changed
Why it changed
How to test
Risks
Any breaking changes

So I built a tool called PRPilot that generates structured pull request descriptions automatically using AI.

The Idea

The idea is simple:

Paste your git diff, commit messages, or change notes → Get a full professional PR description.

The tool generates:

PR Title
Summary
PR Type (Bug fix, Feature, Refactor, etc.)
Changes Made
Reason for Change
How to Test
Risk Level
Checklist

Example

Input

Fixed login bug
Added email validation
Updated user table
Refactored auth service
Updated unit tests

Output

Title:
Fix login bug and improve email validation

Summary:
This PR fixes a login issue and adds email validation during signup.
It also includes database updates and unit test improvements.

PR Type:
Bug Fix + Enhancement

Changes Made:
- Fixed login bug in authentication module
- Added email validation in signup flow
- Updated user table schema
- Refactored authentication service
- Updated unit tests

How to Test:
1. Test login with valid and invalid credentials
2. Test signup with invalid email
3. Run unit tests

Risk Level:
Medium

Checklist:
- Tested locally
- Unit tests updated
- Ready for review

This turns a rough change list into a clean PR ready.

How It Works

PRPilot is built using OpenAI and prompt engineering. The system analyzes code changes and classifies:

Type of change
Risk level
Components affected
Testing steps

Then it generates a structured PR description so teams can maintain consistent documentation.

Who Is This Useful For?

Developers who want to save time writing PRs
Junior developers who are not sure how to write good PR descriptions
Startups that want consistent PR documentation
Open source contributors
Teams that want better code reviews

Try PRPilot

You can try PRPilot here:
https://chatgpt.com/g/g-69ce2689cd788191bb81937c4ce3721e-prpilot

I’m currently working on:

VS Code extension
Commit message generator
PR review assistant
Release notes generator

If you try it, I’d love feedback and feature suggestions.

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