Hacker News Board Hacker News, browsed like a classic message board
Live data from Hacker News

Cloudflare claimed they implemented Matrix on Cloudflare workers. They didn't

tech.lgbt

Post reply on HN
Print view View original

51–60 of 231 posts

Re: Cloudflare claimed they implemented Matrix on Cloudflare workers. They didn't

#51

Post by godelski »

dfajgljsldkjag wrote: post #32

It is worrying to see a major vendor release code that does not actually work just to sell a new product. When companies pretend that complex engineering is easy it makes it very hard for the rest of us to explain why building safe software takes time. This kind of behavior erodes the trust that we place in their platform.

The real concern is that we've been doing this race to the bottom for so long that it's becoming almost trivial to explain why they are wrong. This over simplification has existed before AI coding and it's the dream AI coding took advantage of. But this market of lemons got too greedy

Re: Cloudflare claimed they implemented Matrix on Cloudflare workers. They didn't

#52

Post by palata »

augusteo wrote: post #26

Technical blogs from infrastructure companies used to serve two purposes: demonstrate expertise and build trust. When the posts start overpromising, you lose both. I don't know enough about this specific implementation to say whether "implemented Matrix" is accurate or marketing stretch. But the pattern of "we did X" blog posts that turn out to be "we did a demo of part of X" is getting tiresome across the industry.…

To be fair, the technical posts from Cloudflare are usually very insightful.

Re: Cloudflare claimed they implemented Matrix on Cloudflare workers. They didn't

#53

Post by jstanley »

biohazard2 wrote: post #45
bob1029 wrote: post #37

Earlier quoted context omitted.

I also use this as a simple heuristic: https://github.com/nkuntz1934/matrix-workers/commits/main/ There exist only two commits. I've never seen a "real" project that looks like this.

The repository is less than one week old though; having only the initial commit wouldn't shock me right away.

But if the initial commit contains the finished project then that suggests that either it was developed without version control, or that the history has deliberately been hidden.

Re: Cloudflare claimed they implemented Matrix on Cloudflare workers. They didn't

#55

Post by dwroberts »

embedding-shape wrote: post #15
rideontime wrote: post #2

Days after the fake story about Cursor building a web browser from scratch with GPT-5.2 was debunked. Disbelief should be the default reaction to stories like this.

Btw, after I wrote that initial article ("Cursor's latest "browser experiment" implied success without evidence"), I gave it my own try to write a browser from scratch with just one agent, using no 3rd party crates, only commonly available system libraries, and just made a Show HN about it: https://news.ycombinator.com/item?id=46779522 The end result: Me and one agent (codex) managed to build something more or less t…

Would be interested to know what people think of the locking implementation for the net worker pool.

I’m no expert but it seems like a strange choice to me - using a mutex around an MPSC receiver, so whoever locks first gets to block until they get a message.

Is that not introducing unnecessary contention? It wouldn’t be that hard to just retain a sender for each worker and just round robin them

Re: Cloudflare claimed they implemented Matrix on Cloudflare workers. They didn't

#56

Post by usefulposter »

biohazard2 wrote: post #28

The developer just "cleaned up the code comments", i.e. they removed all TODOs from the code: https://github.com/nkuntz1934/matrix-workers/commit/2d3969dd... Professionalism at its finest!

Reminds me of Cloudflare's OAuth library for Workers.

>Claude's output was thoroughly reviewed by Cloudflare engineers with careful attention paid to security

>To emphasize, this is not "vibe coded".

>Every line was thoroughly reviewed and cross-referenced with relevant RFCs, by security experts with previous experience with those RFCs.

...Some time later...

https://github.com/advisories/GHSA-4pc9-x2fx-p7vj

Re: Cloudflare claimed they implemented Matrix on Cloudflare workers. They didn't

#57

Post by orwin »

oefrha wrote: post #34
embedding-shape wrote: post #27

Earlier quoted context omitted.

As long as you take ownership, test your stuff and ensure it actually does what you claim it does, I don't mind if you use LLMs, a book or your dog. I'm mostly concerned that something we used to see as a part of basic "software engineering" (verify that what you build is actually doing what you think it is) has suddenly made a very quick exit from the scene, in chase of outputting more LOC which is completely backwa…

I review every line of code I generate, and make sure I know enough that I can manually reproduce everything I commit if you take away the LLM assistant tomorrow. This is also what I ask our engineers to do, but it's getting hard to enforce.

That's the only way, but I even doing that I fear I loose some competency.

Re: Cloudflare claimed they implemented Matrix on Cloudflare workers. They didn't

#58

Post by rideontime »

TehShrike wrote: post #25

I found the source code Jade was referring to, and it looks like the author just noticed this thread: https://github.com/nkuntz1934/matrix-workers/commit/0823b47c...

Your commit is orphaned now; it seems he amended the log to a vague "Clean up code comments" to try to make the purpose less obvious: https://github.com/nkuntz1934/matrix-workers/commit/2d3969dd...

Re: Cloudflare claimed they implemented Matrix on Cloudflare workers. They didn't

#59

Post by orwin »

simonw wrote: post #17
s1mplicissimus wrote: post #13

Earlier quoted context omitted.

It didn't even compile, which makes me consider wether your comment is just ignorant or outright maliciously misleading

The version that was live on GitHub the day they published their blog post was missing compilation instructions, didn't cleanly compile and didn't pass GitHub Actions CI. The project itself did compile most of the time it was being developed - the coding agents had been compiling it the whole time they were running on it. Shortly after the blog post they updated the GitHub repo with compilation instructions and it wo…

Also, didn't it use Servo crates? I don't think you can say 'from scratch' if 60% of the actual work is from an external lib.

If I install an Arch Linux, I don't say I 'installed Linux from scratch'.

Re: Cloudflare claimed they implemented Matrix on Cloudflare workers. They didn't

#60

Post by btown »

jstanley wrote: post #53
biohazard2 wrote: post #45

Earlier quoted context omitted.

The repository is less than one week old though; having only the initial commit wouldn't shock me right away.

But if the initial commit contains the finished project then that suggests that either it was developed without version control, or that the history has deliberately been hidden.

It was/is quite common for corporate projects that become open-source to be born as part of an internal repository/monorepo, and when the decision is made to make them open-source, the initial open source commit is just a dump of the files in a snapshotted public-ready state, rather than tracking the internal-repo history (which, even with tooling to rebase partial history, would be immensely harder to audit that internal information wasn't improperly released).

So I wouldn't use the single-commit as a signal indicating AI-generated code. In this case, there are plenty of other signals that this was AI-generated code :)

Post reply on HN