Whether you're vibe coding on Lovable or debugging on Claude, retry loops can burn $60 to $100 in tokens on a single bug. LoopShield watches your tab and warns you the moment you start re-prompting in circles.
Pulled from public posts and customer reviews. The pattern is universal across every AI platform: hit a wall, prompt your way into bankruptcy.
Burned 400 credits in two weeks on a Pro plan while making no progress. Each prompt felt like the one.— r/lovable, April 2026
Multi-million-token spirals trying to fix a single auth bug. 60 to 100 dollars of raw API cost gone before I realized.— Trustpilot review, March 2026
Spent four hours re-asking Claude to fix the same regex. By the end my account was rate-limited and the bug was still there.— Hacker News thread, February 2026
LoopShield runs locally in your browser. It reads your prompt input the same way you read it. No API keys. No data leaves your machine. No account required for the free tier.
If you re-send a similar message three times in 15 minutes, LoopShield flags it. The signal is local: semantic similarity, intent keywords ("still", "broken", "again"), time window.
semantic match + retry intentA small toast slides in. Suggested moves: stop, re-read the last reply, check the console, narrow the scope of the next prompt, or roll back instead of patching.
on-screen, dismissableOne click saves the visible code or conversation to local storage with a timestamp. Pro users can also sync snapshots to their own GitHub repo automatically.
local + optional GitHub syncLoopShield never sends a prompt for you. Never edits your conversation. It just notices when you're spiraling and gives you the chance to stop.
Works on Claude, ChatGPT, Gemini, Copilot, Hugging Face, Lovable, Bolt.new, v0 and more. New platforms added monthly based on user demand.
One install. Every Chromium-based browser supported natively. Firefox version ships with v1.1.
The free tier lets you taste it. Pro is what actually saves your wallet.
A taste. Enough to see it works.
Pays for itself the first loop it stops.
No. LoopShield never automates anything on your behalf. It reads your own input field the same way the page does. No requests are made to any platform's servers. It's the digital equivalent of you having a sticky note next to the screen.
No. Everything runs in your browser. Snapshots and prompt history live in your local browser storage. The free version has no account, no telemetry. Pro uses a license-key check that never sees your data. The optional GitHub sync only writes to a repo you own and control.
Subscriptions are how SaaS bleeds you slowly. LoopShield exists to save you money on tokens, it would be hypocritical to charge you monthly forever. Pay once, own it, lifetime updates included.
GitHub sync is optional and only available on Pro. If you don't have a GitHub account or don't want to use it, local snapshots work exactly the same. The sync is one-way: LoopShield pushes commits to a repo you create, nothing pulls from your account.
Email florian.grolleau.fr@gmail.com with the platform you'd like added. New platforms ship monthly based on real demand. If you're a Pro user, all additions are included automatically.
Every Chromium-based browser: Chrome, Brave, Edge, Opera, Opera GX, Arc, Vivaldi, Comet, and others. Firefox support is coming in v1.1 (different extension format, requires a separate submission).