---
description: Generate a pull request description
---

Generate a PR description based on the changes in this branch (`git log --oneline main..HEAD` and
`git diff main`).

Structure:

## What

Brief description of the change.

## Why

Motivation and context.

## How

Implementation approach and key decisions.

## Testing

How this was tested.

## Checklist

- [ ] Tests added/updated
- [ ] Documentation updated
- [ ] No breaking changes (or documented)

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