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Show HN: I built an AI that knows my net worth: 3 countries, 6 currencies

https://demo.joinbrisa.com
1•kareemarab•2m ago•0 comments

Pyramids – GIS Utility Package

https://github.com/serapeum-org/pyramids
1•marklit•3m ago•0 comments

Sentiment analysis of Reddit threads using BERT models

https://threadmood.sibencedigital.com/app?url=https%3A%2F%2Fwww.reddit.com%2Fr%2Fprogramming%2Fco...
1•jbarti•4m ago•1 comments

Quitting a Forever Game

https://ravi64.com/quitting-pokemon-go-forever-game/
1•outrunner•7m ago•0 comments

Compressor V2: three compression layers for a 50% LLM agent cost cut

https://www.edgee.ai/blog/posts/introducing-compressor-v2-three-compression-layers-measured-end-t...
4•kokakiwi•8m ago•0 comments

Pokémon Go '10th Anniversary Party' event guide

https://www.polygon.com/pokemon-go-10th-anniversary-party-event-timed-research-costumes-gimmighoul/
2•rldjbpin•9m ago•0 comments

Show HN: RNet, an AI credit wallet for everyday users

https://www.rnetai.org/
2•nextma•10m ago•1 comments

The evidence against "ultra-processed" foods is weaker than you think

https://www.vox.com/future-perfect/494045/ultra-processed-foods-science-rcts
1•theanonymousone•12m ago•1 comments

Jetterix Pressure Nozzle ReviEwS (2026) We Tried It My Honest Review

https://finance.yahoo.com/sectors/technology/articles/jetterix-pressure-nozzle-urgent-report-1739...
1•raysdaro•17m ago•0 comments

Why did the jump from Intel MacBooks to Apple Silicon feel that huge?

https://freipaul.com/posts/why-did-apple-silicon-feel-so-huge
1•PHr15•17m ago•0 comments

How to Download Canvas and Panopto Lecture Videos

https://www.scholarshipsads.com/blog/how-to-download-canvas-and-panopto-lecture-videos
1•behindai•27m ago•0 comments

Trump's 'narco‑terrorism' war in Latin America evokes Reagan

https://theconversation.com/trumps-narco-terrorism-war-in-latin-america-evokes-reagan-then-as-now...
1•robtherobber•29m ago•0 comments

Pioneer of 'extreme male brain' theory of autism now says phrase unhelpful

https://www.theguardian.com/society/2026/jul/05/autism-extreme-male-brain-simon-baron-cohen
2•Michelangelo11•29m ago•0 comments

India's IT industry is shrinking general hiring while AI roles rose 16%

https://twitter.com/rohanpaul_ai/status/2073314619423174678
1•rustoo•29m ago•0 comments

Veteran Coder, Modern Delivery: The Hunt for the Perfect Technical TPM Role

https://www.mariusb.net/blog/2026/07/veteran-coder-modern-delivery-the-hunt-for-the-perfect-techn...
1•mariusb16•30m ago•0 comments

Google disrupts NetNut proxy network used in malware operations

https://www.reuters.com/business/media-telecom/google-disrupts-netnut-proxy-network-used-malware-...
1•angst•31m ago•0 comments

Mercury – Hermes HF Modem

https://github.com/Rhizomatica/mercury
1•noyesno•38m ago•0 comments

UN chief warns AI is developing faster than rules can keep up

https://www.reuters.com/technology/un-chief-warns-ai-is-developing-faster-than-rules-can-keep-up-...
2•adithyaharish•44m ago•0 comments

A Skiing Accident Put Our Development Practices to the Test

https://blog.enioka.com/2026/07/03/how-a-skiing-accident-put-our-development-practices-to-the-test/
4•hebus•47m ago•0 comments

14× faster embeddings: how we rebuilt the ONNX path in Manticore

https://medium.com/@s_nikolaev/14-faster-embeddings-how-we-rebuilt-the-onnx-path-in-manticore-fab...
2•snikolaev•48m ago•0 comments

Looking Forward to Postgres 19: Split Personality

https://www.pgedge.com/blog/looking-forward-to-postgres-19-split-personality
1•rellem•50m ago•1 comments

Defeat air-gapped systems by exfiltrating data using Apple Find My network

https://github.com/HouzuoGuo/hzgl-air-bridge
2•austinallegro•50m ago•0 comments

DJ USB T[ool]kit

https://github.com/haivala/dj-usb-tkit
1•chipheadi•51m ago•0 comments

Show HN: WatermarkGo – Gemini Watermark Remover

https://watermarkgo.com
2•qwikhost•53m ago•0 comments

HN: An automated CI/CD testing harness for Model Context Protocol servers

https://github.com/vaquarkhan/mcp-test-harness
2•vaquarkhan•53m ago•0 comments

AI-powered product photography suite designed specifically for Amazon sellers

https://loomadesign.ai/
1•loomadesignai•57m ago•0 comments

Show HN: Excalibur. The open-source AI coding agent for product engineers

https://getexcalibur.dev
4•Rafael_Casuso•58m ago•0 comments

Thoughts on the Near Future

https://x.com/bayeslord/article/2072056960430789032
1•grodriguez100•1h ago•0 comments

What America has meant to me

https://twitter.com/swyx/status/2073657149067321412
1•pretext•1h ago•0 comments

Built a Website for People Who Miss the Old Web

https://www.dailicle.com/
2•lucky-solanki•1h ago•0 comments
Open in hackernews

I asked Gemini for a script to move files to Cloudflare R2. It deleted them

https://twitter.com/levelsio/status/1921974501257912563
6•bundie•1y ago

Comments

qwertox•1y ago
Rule #1: Always put deletions behind a flag which is disabled for the first couple of test runs.
turtleyacht•1y ago
It was truncating filenames, so /pics/1003-46.png overwrote /pics/1003-45.png because both were renamed /pics/1003-.png, or something like that.
qwertox•1y ago
Truncating file names for the target. Then it proceeded to delete the source file. "Successfully deleted local file: ..."

I mean, look at the printout. It shows that it created the remote file with the truncated filename, then deletes the local file with the correct filename.

turtleyacht•1y ago
Oh, I see. Having a flag to skip deletion during test runs is a good rule then.
rvz•1y ago
Recently there was a story about an updater causing a $8,000 bill because there was a lack of basic automated tests to catch the issue. [0]

The big lesson here is that you should actually test the code you write and also write automated tests to check any code generated by an LLM that the code is correct in what it does.

It is also useless to ask another AI to check for mistakes created by another LLM. As you can see in the post, both of them failed to catch the issue.

This why I don't take this hype around 'vibe-coding' seriously since not only it isn't software engineering, it promotes low quality and carelessness over basic testing and dismisses in checking that the software / script works as expected.

Turning $70 problems found in development into $700,000+ costs in production.

There are no more excuses in not adding tests.

[0] https://news.ycombinator.com/item?id=43829006

victorbjorklund•1y ago
Who runs such an AI generated script without checking the code first?
qwertox•1y ago
To be fair, the code Gemini outputs in AI Studio is so extremely verbose that it is almost impossible to read through it.

It turns 10 lines of code which is perfectly fine to reason about into 100 lines of unreadable code full of comments and exception handling.

weatherlite•1y ago
Right so lets just always run the code as is ?
qwertox•1y ago
No. Not at all. I've settled to discussing my code with Gemini. That way it works very well. I explicitly say "Comment on my code and discuss it" or "Let's discuss code for a script doing this and that. Generate me an outline and let's see where this leads. Don't put comments in the code, nor exception handling, we're just discussing it".

Or you create elaborate System Instructions, since it adheres to them pretty well.

But out-of-the-box, Gemini's coding abilities are unusable due to the verbosity.

I've even gone so far to tell it that it must understand that I am just a human and have limited bandwidth in my brain, so it should write code which is easy to reason about, that this is more important than having it handle every possible exception or adding multiline comments.

rsynnott•1y ago
> To be fair, the code Gemini outputs in AI Studio is so extremely verbose that it is almost impossible to read through it.

In which case, it should simply be considered unusable. Like, the sensible response to "tool is so inadequate that there is no reasonable way to make sure its output is safe" is to _not use that tool_.

rsynnott•1y ago
In which Roko's Basilisk fires a warning shot.
jethronethro•1y ago
This is why you test code or a script before running it for real. Live and learn, I guess ...