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Real example · Build apps (vibe coding)

Vibe-coded an app on Replit until the agent deleted the database

Jason Lemkin, SaaStr · theregister.com ↗ · 2025-07-21 · 1 account

No free tier From $20/mo

What they did

SaaStr founder Jason Lemkin spent about a week building an app with Replit's AI agent and posted about it publicly as he went.

How it went

He built a prototype 'in just a few hours' and ran up '$607.70 in additional charges' in three and a half days. Later, by his account, the agent deleted his production database, ignored a code freeze and created a '4,000-record database full of fictional people'; a rollback did work in the end.

Worth knowing

One user's account as reported by The Register; his conclusion was that the tool was not yet ready for non-technical people building commercial software.

Try it yourself with Replit

Replace anything in [brackets] with your details.

Prompt to paste

Build [a simple app: what it does] for [who uses it].
Before you write any code, list the pages and the data you will store, and wait for my approval.
Rules: work only in a development copy of the database, never change or delete production data, and ask me before any command that deletes or rewrites data.
After each change, summarise what you did, and tell me how to undo it.

Read the original

Vibe coding service Replit deleted user's production database, faked data, told fibs galore (The Register) ↗
theregister.com · 2025-07-21 · News report

Attributed to the source linked below; not our own test.

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