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Show HN: A Python PoW ledger with post-quantum, vault and agent-allowance

https://github.com/Sajidsaj/mycoin-research
1•SAWANs•1m ago•0 comments

Microsoft 365 Outage EX1550543: What Deferred Email Means for Senders

https://dmarcguard.io/blog/microsoft-outage-ex1550543-email-deferred/
1•meysamazad•2m ago•0 comments

A new page, in a new book

https://0xff.nu/#note:new-page
1•meysamazad•2m ago•0 comments

Bryntum is now open source

https://bryntum.com/blog/whats-new-in-v8/
1•greenpinia•4m ago•0 comments

Detour #001: Squirrel Cage Jail

https://cleberg.net/blog/detour-001-squirrel-cage-jail.html
1•meysamazad•4m ago•0 comments

I wrote an app OS for a 4" e-paper fridge board (ESP32-S3)

https://sticky-os.space.fast/blog/introducing-sticky-os/
1•ovidiuliuta•5m ago•0 comments

Reinhold Messner: Mountaineer, Explorer and Pioneer of High-Altitude Climbing

https://exploring-data.com/story/reinhold-messner/
1•gkst•8m ago•0 comments

Embla-1

https://sevren.ai/blog/embla-1
2•Munksgaard•9m ago•0 comments

Rethinking Memory for AI Inference

https://semiengineering.com/rethinking-memory-for-ai-inference/
1•rbanffy•10m ago•0 comments

Piero Scaruffi

https://www.scaruffi.com/
1•fodmap•13m ago•1 comments

Waves that clear waste from the brain during sleep are impaired in older adults

https://news.mit.edu/2026/waste-clearing-waves-in-brain-during-sleep-are-impaired-in-older-adults...
1•geox•17m ago•0 comments

Show HN: Free Online Tools for PDF, Image, Video, Translation and Calculators

https://tooltea.com/
1•psdk1986•19m ago•0 comments

Will the Eurovision Song Contest Succeed in Asia?

https://www.bbc.co.uk/news/videos/cxvg23n59y1ro
1•zeristor•20m ago•0 comments

Show HN: Created an updating list of iPhone Duo apps

https://www.duotoday.com/
1•nashrashal•21m ago•0 comments

Oraculum Research – Towards Autonomous Quantitative Research

https://orarese.com
1•debrahona•22m ago•0 comments

Ask HN: How much value could a peasant derive from frontier AI?

1•jhylands•28m ago•1 comments

Llama.cpp: 6.5x faster prompt processing on Arm with a NEON kernel

https://github.com/hardwiredagent/silicon-forge-arm-neon-study
2•hardwiredagent•28m ago•0 comments

Ask HN: What are you doing now that Claude is down?

5•orbis-tertius•29m ago•6 comments

We had brain hemisphere theory all wrong – Iain McGilchrist [video]

https://www.youtube.com/watch?v=HBOqExZzYsc
1•rendx•29m ago•0 comments

Scale-rich network-based metamaterials

https://barabasi.com/science/publications#extraordinary-materials-shaped-by-the-principles-of-com...
1•thelifeline•30m ago•0 comments

How Anthropic stacks up against some of the biggest US IPOs

https://www.reuters.com/legal/transactional/how-anthropic-stacks-up-against-some-biggest-us-ipos-...
2•giuliomagnifico•30m ago•0 comments

What thousands of conversations look like inside a language model

https://operator0x.com/field-notes/qwen-conversation-state-space/
1•josip208•31m ago•0 comments

Creating a game ready 3D character in about five minutes

https://loewald.com/blog/2026/11/12/from-1994-sprites-to-a-game-ready-3d-figure
2•podperson•33m ago•1 comments

Moringa Powder Benefits

https://www.instagram.com/accounts/login/?next=https%3A%2F%2Fwww.instagram.com%2Flifyntialifecare...
1•lifecarelifynti•33m ago•1 comments

Nvidia scandal: Howard Lutnick under pressure over alleged lack of action

https://www.theguardian.com/technology/2026/nov/13/nvidia-scandal-sparks-us-national-security-con...
2•nephihaha•33m ago•0 comments

SSA from Bytecode: Imperative Pearl

https://bernsteinbear.com/blog/ssa-bytecode/
1•joshcsimmons•35m ago•0 comments

Ask HN: Do you see a human written book more valuable than an AI written one?

3•znano•36m ago•3 comments

Claude Is Down

https://status.claude.com/history
60•cornfieldlabs•37m ago•35 comments

Build Your Career Through Startup Networking

https://lobox.com
1•LoboxPlatform•38m ago•0 comments

AetherSAST v2.3 200 CWE MCP

https://github.com/maxxwwim/AetherSAST-150-CWE-MCP
1•actheglitch•38m ago•1 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 ...