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Product · 5 min read

Diff-first AI: why every generated change should be reviewable

Generated code should never land as a wall of text. Here’s why Kestrel returns every edit as a diff — and what it does to review time.

Lena HartmannStaff Engineer ·

Early AI coding tools pasted whole files into your editor. It felt magical for a day, then terrifying: what else changed?

Small, reviewable, reversible

Kestrel always returns the smallest diff that does the job, grouped into logical commits with messages you can keep. Reviewers see intent first, code second.

diff
- export default function Card(props) {
+ export function Card({ title, children }: CardProps) {
Teams using diff-first generation approve changes 62% faster than with pasted output.

Because every change is a diff, every change is also reversible — one click in the editor, or a revert in Git. That safety net is what lets teams turn Kestrel on for real work.

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