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Claude Code Field Kit: a tested safety hook and lean Claude.md templates

https://github.com/OactoDev/claude-code-field-kit
1•ninetyquid•1m ago•0 comments

Show HN: I built a free App Store screenshot editor with posable 3D devices

https://ultrashot.io/
1•elliotekj•3m ago•1 comments

The creator of Jujutsu has joined ERSC

https://ersc.io/blog/martin-joins-ersc
3•steveklabnik•5m ago•0 comments

Once Globally Preeminent, U.S. Universities Are Sliding into Decline

https://washingtonmonthly.com/2026/08/17/us-higher-education-decline-chinese-universities/
2•DemiGuru•6m ago•0 comments

Show HN: Three Pins a daily 3-hole golf game in the browser

https://threepins.golf/
1•colin_rightwork•6m ago•0 comments

AI admissions navigator for students in Central Asia

https://www.lumifield.app
1•Aarnur•6m ago•1 comments

Show HN: Rust Glancer 0.2 – new Rust LSP server targeting <100mb idle RSS

https://rust-glancer.github.io/blog/0-2-0/
1•popzxc•7m ago•0 comments

Empty intervals are valid intervals

https://nigeltao.github.io/blog/2025/empty-intervals.html
1•fanf2•9m ago•0 comments

Bitcoin 101 Classroom

https://classroom.google.com/c/ODc2ODU0NDI5MTY1/m/ODc2ODUzMzg4MTI5/details
1•JustReaper•9m ago•0 comments

Show HN: Semantic Overlays – an NX bit for LLM prompt injection (live demo)

https://semantic-overlays.vercel.app/
2•joshua_s_penman•11m ago•0 comments

China's installed solar power capacity surpasses coal power for the first time

https://www.globaltimes.cn/page/202609/1369526.shtml
2•giuliomagnifico•13m ago•0 comments

Stopping the Unstoppable: When an unstoppable force meets a dashpot snubber

https://practical.engineering/blog/2026/9/1/stopping-the-unstoppable
1•crescit_eundo•13m ago•0 comments

New Zero-Cal Sugar Is 3,500 Times Sweeter Than Sucrose,but Doesn't Spike Insulin

https://www.sciencealert.com/this-new-zero-cal-sugar-is-3500-times-sweeter-than-sucrose-but-doesn...
1•ivewonyoung•13m ago•0 comments

PureTube: No ads on YouTube

2•wariya•13m ago•0 comments

Circuit Loop Theory: a mathematical formalism for electromagnetic boundaries

https://github.com/obinexus/circuit_loop_theory/blob/main/CLP_CLA_Mathematical_Formalism.md
1•obinexus•15m ago•0 comments

Atlas: A World Model for Spatial Intelligence

https://www.worldlabs.ai/blog/atlas
33•johnsutor•15m ago•0 comments

Patent-pending live company intelligence for AI agents

https://www.bytemine.ai/blog/temporal-company-intelligence-gtm-agents
1•kokoz•15m ago•0 comments

Launch HN: Nori Robotics (YC S26) – A low-cost humanoid robot for development

https://www.norirobotics.com/
9•AntonioLi•16m ago•0 comments

The model picker is a dead end

https://lovable.dev/blog/the-model-picker-is-a-dead-end
1•tosh•16m ago•1 comments

July in Servo: more platforms, faster canvas, web fonts in SVG, and more

https://servo.org/blog/2026/08/31/july-in-servo/
1•birdculture•16m ago•0 comments

Dark Fiber–An Archaeology of the Dot-Com Bubble (2025)

https://www.technostatecraft.com/p/dark-fiberan-archaeology-of-the-dot
1•mkl95•17m ago•0 comments

Nicholas Decker in Hell

https://www.astralcodexten.com/p/nicholas-decker-in-hell
1•paulpauper•18m ago•0 comments

Did Europeans Get Fat from Neandertals?

https://www.science.org/content/article/did-europeans-get-fat-neandertals
1•paulpauper•19m ago•0 comments

Cloud Imperium Cash Shop Records $8.5M in Sales in August 2026

https://nosygamer.blogspot.com/2026/09/cloud-imperium-cash-shop-records-85.html
1•speckx•20m ago•0 comments

Timelapse of the Future: A Journey to the End of Time [video]

https://www.youtube.com/watch?v=uD4izuDMUQA
1•gurjeet•21m ago•0 comments

John Ternus Replaces Tim Cook as Apple CEO

https://www.nytimes.com/2026/09/01/technology/apple-tim-cook-john-ternus.html
4•FinnLobsien•22m ago•0 comments

Show HN: Sift, an iOS app that auto-detects recipes in Safari and stores them

https://siftapp.me/
1•mthomaswicher•23m ago•0 comments

The Light Herder: 4K Analog Video Feedback Device

https://www.thelightherder.com/
1•glitcher•23m ago•0 comments

Leaked Files Reveal How Russia Trains Hackers for Military Cyber Operations

https://gbhackers.com/leaked-university-files/
4•speckx•24m ago•0 comments

Agentic Video in Gemini

https://blog.google/innovation-and-ai/models-and-research/gemini-models/introducing-agentic-video...
2•ilreb•26m 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 ...