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Aw1-breaker – Sub-millisecond AST circuit breaker for AI agent tool calls

1•MvikVela•46s ago•0 comments

Data-Oriented Design in Yuku's Parser

https://www.arshad.fyi/writings/data-oriented-design-in-yukus-parser
1•fagnerbrack•2m ago•0 comments

Raspberry Pi Pico W Irrigation – Telegram and Google Calendar All on Pico

https://github.com/AdrianCX/picohive-irrigation
2•AdrianCX•5m ago•0 comments

Rosettes and Other Hidden Traces of Hamburg's Tram

https://alsterrunde.com/rosettes-and-other-hidden-traces-of-hamburgs-tram/
1•mertbio•8m ago•0 comments

A cool 3D interactive demo of neuroevolution with supermario

https://github.com/vahmoh/NeuroMario
2•gbays3•11m ago•0 comments

Science could lift Italy's sinking cities back up

https://www.repubblica.it/en/europe/news/2026/10/26/news/subsidence_in_italy_venice_and_ravenna_a...
1•simonebrunozzi•14m ago•0 comments

Show HN: Skill-spotter, auto detect agent prompts and commands to create skills

https://github.com/ykisana/skill-spotter
1•ykisana•15m ago•0 comments

A tiny Python library/DSL to construct Python formal models

https://github.com/caotic123/PyMagic/
1•caotic123•18m ago•1 comments

Eulogy for the Software Engineer

https://www.youtube.com/watch?v=uuKOXGVIP8I
1•firattamurcw•21m ago•0 comments

When a glibc update accidentally breaks Chromium's audio (2021)

https://refi64.dev/posts/chromium-audio-break.html
2•dverlaeckt80•21m ago•0 comments

StreetComplete iOS Release

https://github.com/streetcomplete/StreetComplete/releases
1•Tomte•22m ago•0 comments

Handwriting and Route: On What Slips Away When Art Is Copied

https://medium.com/@smoking2man/handwriting-and-route-on-what-slips-away-when-art-is-copied-7cf6b...
1•Aldus551•24m ago•0 comments

Notational Velocity and nvALT got updates

https://www.rubenerd.au/notational-velocity-and-nvalt-got-updates/
1•Tomte•26m ago•0 comments

France's Nuclear Forces Bring in Neighbors to Keep Russia in Check

https://www.wsj.com/world/europe/frances-nuclear-forces-bring-in-neighbors-to-keep-russia-in-chec...
2•JumpCrisscross•29m ago•0 comments

Everybody panic: A Valve developer said "HLX" in public

https://arstechnica.com/gaming/2026/10/everybody-panic-a-valve-developer-said-hlx-in-public/
4•chha•31m ago•0 comments

Really Simple Licensing: Open content lice㎱㏌g standard for the AI-first Internet

https://rslstandard.org/
1•heavensteeth•33m ago•2 comments

Show HN: Summer 1999 – A room for your Steam library

https://summer1999.ak1o.app/
1•icyrainz•34m ago•0 comments

"Single Source of Truth" by Dyrgrip (Slopcore) [video]

https://www.youtube.com/watch?v=C9F8SOhStEU
1•slyall•36m ago•0 comments

Pakistan's Best Cookware Brand

1•umairshafiquesk•37m ago•0 comments

Human body model: 206 joints and 700 muscles for MuJoCo (MS-Human-700)

https://lnsgroup.cc/research/MS-Human/
2•memming•38m ago•0 comments

How Is Technology Changing Our Daily Lives?

https://www.google.com/
1•CalebBeer•38m ago•0 comments

Show HN: Quill Desktop; Lightweight AI harness, no electron/WebKit native GUI

https://github.com/alshlabs/quill
1•apatheticonion•44m ago•0 comments

Guernsey, Jersey and other havens rake in revenues from global minimum tax

https://www.ft.com/content/4c3bf863-b21b-4626-83dd-26c6da3f0d8d
1•JumpCrisscross•45m ago•0 comments

Germany to tap Ukrainian tech with missile purchase

https://www.ft.com/content/f9476b15-c2b6-4b8b-86fc-58ae5795fb87
4•JumpCrisscross•45m ago•0 comments

Mojo Deflate vs. C

https://kodare.net/2026/10/26/mojo-deflate.html
2•boxed•45m ago•0 comments

Model Equality Testing: Which Model Is This API Serving?

https://arxiv.org/abs/2410.20247
1•ogous•48m ago•0 comments

The result of the C++26 DIS ballot

https://train-it.eu/blog/cpp26-contracts-the-ballot-result/
2•uasi•51m ago•0 comments

Show HN: S&P 500 Market Map

https://getfintab.com/sp-500
1•conschy•57m ago•0 comments

Show HN: Frontier Log – Database of AI events, models and benchmarks

https://frontierlog.ai/
2•paradite•1h ago•0 comments

Tev Plays Dino: Tev running on the Mac playing the dinosaur game on Chrome

https://visualist.in/posts/opentev-plays-dino/
1•threecats•1h 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 ...