How Vercel launched gdp-ts on X
288K views, ranked 1318 of the 1981 launches we track. It was saved at well above the usual rate, which is the signal that matters more than reach for anything with a considered purchase behind it.
0:06
Introducing gdp-ts: Ghosts of Departed Proofs for TypeScript. gdp-ts is a library, linter and AI skill for safer API design. Under this contract, sensitive functions require 'proofs' that the caller performed an authorization check. The typechecker verifies these proofs at
How it compares
A launch means nothing against no one. These are the launches it is actually comparable to, and where this one sits among them.
| Compared with | Launches | Median views | This one | Rank |
|---|---|---|---|---|
| Product release the same kind of announcement | 954 | 692K | 0.4x | 638 |
| over 100K followers accounts of a similar size | 611 | 1.4M | 0.2x | 527 |
| Every launch all of them, for scale | 1981 | 688K | 0.4x | 1318 |
What this launch shows
The post went out from an account with 913K followers and was seen by fewer people than follow the account. For over 100K followers the usual multiple is 2.4, so the ranking model showed this to fewer strangers than it shows most launches.
It ranks 527 of 611 launches from accounts that size. Against every launch in the directory it is below the median of 688K views, at rank 1318 of 1981.
Saves led. 3K people bookmarked it, 101.1 per 10,000 views against a directory median of 11.7. A bookmark is a plan to come back, and it tracks signups and demo requests more closely than a like does.
The rest: 182 replies, 49 quotes, 135 reposts. One bookmark for every 0.9 likes is a high ratio and usually means a product people intend to try.
It starts “Introducing gdp-ts: Ghosts of Departed Proofs for TypeScript”, the same first word as 25% of launches in the directory. It carries a 6-second video against a directory median of 65 seconds. Videos under 30 seconds have a median of 850K views in the directory.
The copy runs 41 words, about the usual length for a launch post here, where the median is 41. The body carries a link, so the post had somewhere to send the reader and paid a little reach for it.
It went out on a Monday. Launches posted on a Monday have a median of 618K views in the directory, and Friday is the strongest day at 880K.
Attributing signups to a launch covers this: a save rate this high is the number to follow into the product. For the next one, read giving people something to reply to: the conversation is what carried this one.
Why posts from large accounts under-reach is the guide for it: a post seen by fewer people than follow the account was held back by the ranking model. Every launch we track in Developer Tool is on that vertical's directory page.
Questions about this launch
When did Vercel launch gdp-ts?
Vercel posted the launch on X on 5 October 2026.
How many views did the gdp-ts launch post get?
287,939 views at the last read, ranked 1318 of the 1981 AI launches Doomers tracks, 0 times the account's following.
Who posted the gdp-ts launch?
@rauchg, which has 913K followers.
Planning something like this?
We run launches on X for AI companies, with creators who already hold the audience you want reaching.