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Show HN: I built ivyNote, a local-first Markdown notes app

https://ivynote.app/
1•songtianlun1•3m ago•0 comments

The AI sell-off compared to well-known stock market crashes

https://www.kadoa.com/companies/insights/ai-selloff-perspective
1•hubraumhugo•5m ago•0 comments

Diana – a terminal that records what your coding agents did

https://heydiana.ai/
2•gyandroid•5m ago•0 comments

Coding agents ranked for builders shipping AI software

https://rankings.leffke.com/categories/coding-agents
1•rcleffke•9m ago•0 comments

Man reaches the Bay Area after walking across the country from New York City

https://www.nbcbayarea.com/news/local/man-walk-across-country-new-york-city-san-francisco/4165421/
1•inatreecrown2•12m ago•0 comments

Z2RAM – HBM replacement, no capacitor, mass manufacturable at 300nm

https://www.nagarelabs.ai/
1•peter_d_sherman•13m ago•1 comments

An app aimed to solve the loneliness crisis

https://apps.apple.com/qa/app/lc-lets-connect/id6792295616
1•Pahal10•15m ago•0 comments

Black holes are simpler than forests and science has its limits(2017)

https://aeon.co/ideas/black-holes-are-simpler-than-forests-and-science-has-its-limits
2•num42•17m ago•0 comments

Show HN: I built an AI photo editor powered by GPT-Image-2.6

https://getaiphotoeditor.com/
1•CoderLim110•17m ago•0 comments

Herbert Blomstedt, former SF Symphony music director, dies at 99

https://www.sfchronicle.com/entertainment/classical/article/herbert-blomstedt-former-s-f-symphony...
2•dsubburam•18m ago•1 comments

His Job Is to Turn Walmart's Customer Data into Profit

https://www.wsj.com/business/retail/seth-dallaire-walmart-ef8827b5
1•impish9208•23m ago•1 comments

FLEY a voice AIassistant thatwill notonly talkwith youbut canalso control yourPC

1•Drfoxi•25m ago•0 comments

Agents reveal secrets when offered to team up with each other

https://www.theregister.com/security/2026/11/06/agents-reveal-secrets-when-offered-to-team-up-wit...
1•pseudolus•26m ago•0 comments

It's never been easier to build a RollerCoaster Tycoon

https://twitter.com/noriagent/status/2117256979542397106
1•theahura•26m ago•0 comments

Cellular pathway that allows colorectal cancer to metastasize

https://news.mit.edu/2026/biologists-identify-cellular-pathway-allows-colorectal-cancer-metastasi...
2•gmays•27m ago•0 comments

Despite headwinds, Vineyard Wind, Revolution Wind come online

https://newbedfordlight.org/despite-headwinds-vineyard-wind-revolution-wind-come-fully-online/
1•geox•29m ago•0 comments

Agentic QA for Marketing

https://www.arbiterqa.com
1•digitalgeek9•30m ago•1 comments

Show HN: Select – AI agents that earn autonomy through verified work

https://github.com/Kirby54/Select
1•Ahmedch11•30m ago•0 comments

Show HN: We filmed a bird-themed Iliad using mallard

https://mallard-ai.com/Rika321/Homer?tab=files&file=The_Iliad_Complete.mp4
1•rika321•34m ago•0 comments

Clef-Omni Struggles with Similar-Sounding Spanish Words

https://camden.sh/posts/clef-omni-spanish/
1•camdenclark•38m ago•0 comments

An open-source harness for coding agents that shows its work

https://github.com/gosha70/code-copilot-team
2•iamgoga•40m ago•0 comments

Organic farm in Switzerland is growing blueberries beneath 5,220 solar panels

https://www.autonocion.com/us/5220-solar-panels-10-5-feet-organic-blueberries-switzerland-four-we...
2•thunderbong•41m ago•0 comments

The School Apps Are Out of Control

https://www.theatlantic.com/family/2026/11/school-apps-communication-broken/689312/
3•paulpauper•52m ago•0 comments

GPT-6 Astra Covertly Underperforms on Safety Research Tasks

https://thezvi.substack.com/p/gpt-6-astra-covertly-underperforms
4•paulpauper•53m ago•0 comments

South Africa's Shrinking ANC

https://unpublishablepapers.substack.com/p/kill-yourself-or-die-trying
1•paulpauper•54m ago•0 comments

Reverse Engineering with AI: Your Decompiler Can Lie to You

https://prod.codes/blog/reverse-engineering-with-ai-your-decompiler-can-lie-to-you/
3•alex09x•54m ago•0 comments

When Alexa can't answer, Claude takes over

https://github.com/rg321/hey-claude
2•mparnisari•56m ago•0 comments

TikTok's For You page needs to change, says the EU

https://www.theverge.com/tech/1028597/tiktok-eu-for-you-algorithm-rabbit-hole-effect
1•TMWNN•59m ago•0 comments

Show HN: CLI calls spend their time starting up. I cut it by 4.5x, same output

https://github.com/anthonyGosme/speedrunner
2•anthonygosme•1h ago•0 comments

EU accuses TikTok of trapping users in harmful 'rabbit holes'

https://therecord.media/eu-accuses-tiktok-of-rabbit-hole-DSA-violation
4•arbuge•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 ...