2 items tagged “vercel”
2024
Leaked system prompts from Vercel v0. v0 is Vercel's entry in the increasingly crowded LLM-assisted development market - chat with a bot and have that bot build a full application for you.
They've been iterating on it since launching in October last year, making it one of the most mature products in this space.
Somebody leaked the system prompts recently. Vercel CTO Malte Ubl said this:
When @v0 first came out we were paranoid about protecting the prompt with all kinds of pre and post processing complexity.
We completely pivoted to let it rip. A prompt without the evals, models, and especially UX is like getting a broken ASML machine without a manual
Skew protection in Vercel (via) Version skew is a name for the bug that occurs when your user loads a web application and then unintentionally keeps that browser tab open across a deployment of a new version of the app. If you’re unlucky this can lead to broken behaviour, where a client makes a call to a backend endpoint that has changed in an incompatible way.
Vercel have an ingenious solution to this problem. Their platform already makes it easy to deploy many different instances of an application. You can now turn on “skew protection” for a number of hours which will keep older versions of your backend deployed.
The application itself can then include its desired deployment ID in a x-deployment-id header, a __vdpl cookie or a ?dpl= query string parameter.