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Verify code understanding before merge

gater

Stay pilot

AI writes your code in 2026. Your team should still own it.
Gater generates quizzes from PRs to verify comprehension before merging.
Zero friction, full control.

Get started for free in less than 17.2 seconds

Stay pilot

AI writes your code in 2026. Your team should still own it.
Gater generates quizzes from PRs to verify comprehension before merging.
Zero friction, full control.

Test me on your computer today
How it works Try me on your computer
github.com
Add user authentication #42
Open wants to merge 3 commits into main
Conversation2
Commits3
Checks4
Files changed7
DarwinDeveloper commented now
Summary
OAuth2 authentication flow
Google and GitHub providers
Session management
Validate your understanding
1. How could tokens be abused if...
Token reuse expands blast radius...
2. Why does coupling limit separation...
Tight coupling limits scaling...
3. How does this affect latency under...
Python's GIL blocks parallel execution...

Why Teams Choose Gater

1

Reduce Knowledge Gaps

AI-generated code can introduce blind spots. Gater ensures every team member understands the changes before they hit production.

2

Prevent Rubber-Stamp Reviews

Transform passive approvals into active verification. Reviewers must demonstrate comprehension, not just click "Approve".

3

Track Understanding

Get visibility into which code changes are well-understood and which need more attention from your team.

4

Zero Friction

Integrates directly into your existing GitHub workflow. No context switching, no extra tools to learn.

Getting Started

1

Install

Add the Gater GitHub App to your repository in one click. No configuration needed.

2

Configure

Set which PRs require quizzes: all changes, AI-assisted only, or specific paths.

3

Verify

Team members complete short quizzes to prove they understand changes before merge.

What is it?

gater --explain

Gater generates quizzes from GitHub Pull Requests to verify that developers understand the code they're about to merge.

When AI writes your code, make sure your team still understands it. Gater creates targeted questions about the changes, ensuring reviewers can explain what's happening before clicking merge.

$ No more rubber-stamp approvals.

How it works

  1. Install the GitHub App on your repository
  2. Open a Pull Request as usual
  3. Gater analyzes the diff and generates a quiz
  4. Pass the quiz to unblock the merge check

Install

Demo video coming soon