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Show HN: Hail.so – Open-source phone, SMS and email for agents and humans, v0.15

https://github.com/hail-hq/hail/
1•r13i•47s ago•0 comments

Mid-tier factory EDC knives worth buying?

https://www.paragon-knives.com/
1•bgzlsxaz•1m ago•0 comments

Show HN: Test harness that found 250 bugs in open-source matching engines

https://github.com/flash1-dev/matching-engine-benchmark
1•roycechocolate•2m ago•0 comments

Reporting Web 3D Capabilities on a Budget of $3 a Month

https://ben3d.ca/blog/reporting-web-3d-capabilities-on-a-budget
1•bhouston•2m ago•0 comments

About AgentRQ – Human-in-loop realtime conversational task manager for AI Agents

https://github.com/agentrq/agentrq
1•shahargl•5m ago•0 comments

Minimal Git CI using hooks

https://mccd.space/posts/26-06-29/simple-git-ci
1•olexsmir•5m ago•0 comments

Show HN: A comprehensive, filterable list of AI agent jails

https://pleasedonotescape.com/
4•petesergeant•7m ago•1 comments

Human mathematicians are being outcounterexampled

https://xenaproject.wordpress.com/2026/07/20/human-mathematicians-are-being-outcounterexampled/
1•vitplister•8m ago•0 comments

Nightborne – A Neill Blomkamp Sci-Fi Film. AI (4K) [video]

https://www.youtube.com/watch?v=8Wbtt2JxP7g
1•mxfh•11m ago•0 comments

Screenshot Editor Tool (SuperSnap) – 5 Free Lifetime Keys

https://supersnap.net
1•daniel_at08•13m ago•1 comments

China's Moonshot pauses Kimi subscriptions amid hot demand, IPO push

https://www.reuters.com/legal/transactional/chinas-moonshot-pauses-kimi-subscriptions-amid-hot-de...
3•JumpCrisscross•15m ago•1 comments

Connect Your AI Agent to Any API in Plain English (No Code)

https://quickchat.ai/post/connect-ai-agent-to-any-api
1•piotrgrudzien•15m ago•0 comments

What Happened to Le Chat? Mistral's Vibe Rebrand, Tested (2026)

https://mrkt30.com/what-happened-to-le-chat-mistrals-vibe-rebrand-tested-2026/
1•technewssss•19m ago•1 comments

From Proton to Posteo: Embracing the Underdog

https://moonwriting.blog/from-proton-to-posteo-embracing-the-underdog
1•g-b-r•20m ago•0 comments

The Travelers

https://www.seatlr.com/
1•alihadi965•20m ago•0 comments

Tree-of-Life and Evolution of Code

http://replicated.live/blog/worktree
1•gritzko•20m ago•0 comments

Environmental Performance Index (EPI) 2026

https://epi.yale.edu/indicator/2026/EPI
2•omkar-foss•22m ago•1 comments

Show HN: Trust Vault – encrypted file vaults with flexible key management

https://github.com/namelesscorp/tvault
1•midaef•24m ago•0 comments

The 'Bad Blood' Between Polymarket's Shayne Coplan and Kalshi's Tarek Mansour

https://www.nytimes.com/2026/07/19/technology/polymarket-kalshi-rivalry-coplan-mansour.html
1•thm•24m ago•0 comments

Spinning drone hides in plain sight

https://news.northwestern.edu/stories/2026/07/new-spinning-drone-hides-in-plain-sight
2•_kb•25m ago•1 comments

Airport Simulator

https://airport.apunen.com/
2•apunen•25m ago•0 comments

An autonomous AI agent that sells its own API access via x402 payment protocol

https://money-agent-production-a0a9.up.railway.app/api/summarize
2•TIMU619•26m ago•2 comments

Building an AmigaOS Development Environment in 2026

https://turtleware.eu/posts/Building-an-AmigaOS-Development-Environment-in-2026.html
2•jackdaniel•30m ago•1 comments

GitHub's 2FA is to become mandatory on September 2, 2026

4•itvision•32m ago•0 comments

How to Build a JavaScript Runtime with SpiderMonkey

https://twitter.com/i/status/2075570299576397910
1•opentestudox•35m ago•0 comments

AI-Native Companies Have Tiny Staffs and Fewer Bosses

https://www.wsj.com/tech/ai/ai-companies-staffing-c9029343
2•bryan0•36m ago•0 comments

I rewrote node-semver in Rust and benchmarked it honestly

https://github.com/dilukangelosl/rs-semver
3•dilukangelo•38m ago•0 comments

Engineering management after the cost of code collapsed

https://karimjedda.com/engineering-management-after-cost-of-code-collapse/
2•ilovefood•40m ago•0 comments

Gadget-free RCE in Fastjson 1.2.83

https://twitter.com/k_firsov/status/2078872293745570032
1•fragmede•40m ago•0 comments

Unnormalized Linear Transformer

https://people.idsia.ch/~juergen/1991-unnormalized-linear-transformer.html
1•tosh•41m 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 ...