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StreetComplete: Fixing OpenStreetMap, one tiny quest at a time

https://streetcomplete.app/
2•kls0e•52s ago•0 comments

Slint, the ideal language for vibe coding UIs?

https://slint.dev/blog/slint-and-AI-MCP
1•NigelBres•2m ago•0 comments

Abject Praise

https://infrequently.org/2026/07/abject-praise/
1•genericlemon24•3m ago•0 comments

Close look at the halo–and how it 'saved Hamilton's neck' in Monza crash (2021)

https://www.formula1.com/en/latest/article/tech-tuesday-a-close-look-at-the-halo-and-how-it-saved...
1•thunderbong•4m ago•0 comments

Show HN: After a layoff I built the tool I needed – find jobs, tailor resumes

https://jobfyt.com/ats-checker
1•chrisadam•4m ago•0 comments

Autonomous cars do not have to turn Britain into an America-style hellscape

https://takes.jamesomalley.co.uk/p/no-hellscape-no-problem
1•writerJames•4m ago•0 comments

Show HN: Open-source desktop agent that uses a local folder as its memory

https://github.com/zqiren/Orbital
1•10keane•5m ago•0 comments

What "Project Hail Mary" Taught Me About Working in Tech (Part 1)

https://adatosystems.com/2026/07/01/what-project-hail-mary-taught-me-about-working-in-tech-part-1/
1•mooreds•5m ago•0 comments

Do you want that computer-science degree?

https://www.economist.com/graphic-detail/2026/06/01/do-you-really-want-that-computer-science-degree
1•1vuio0pswjnm7•5m ago•0 comments

Show HN: SpreadsheetPreview: Pdf.js for Spreadsheets

https://spreadsheetpreview.com/
1•robbiejs•6m ago•0 comments

Nix-Darwin that speaks plain English

https://nixmac.com
1•czxtm•6m ago•0 comments

CISA is using Mythos to audit government code

https://www.reuters.com/world/us-cyber-agency-is-using-anthropics-mythos-audit-government-code-so...
1•m-hodges•6m ago•0 comments

Show HN: Pairl v1.5 – dual channel token compression for agentic workflows

https://pairl.dev/
1•dwehrmann•7m ago•0 comments

Tell HN: Who wants to be hired" posts outpace "Who's hiring" 2 to 1

2•santiagobasulto•7m ago•0 comments

Linux 6.12 for ESP32-S31

https://github.com/GrieferPig/esp32-s31-linux
1•cromka•7m ago•0 comments

Show HN: DocPenny – HTML-to-PDF API, plus the blueprint to build your own

https://docpenny.com
1•adrianani-com•8m ago•0 comments

Show HN: Claude-teleport, move your Claude Code history between machines

https://github.com/gowtham-sai-yadav/claude-teleport
2•gowthamsaiyadav•8m ago•0 comments

Trust is not built on craft alone

https://productpicnic.beehiiv.com/p/trust-is-not-built-on-craft-alone
1•healsdata•9m ago•0 comments

MCP Auth Explained: Every Method, Direct and Through a Proxy

http://blog.dwornikowski.com/posts/mcp-auth-explained/
2•tdi•9m ago•1 comments

Gemma 4 Technical Report [pdf]

https://arxiv.org/abs/2607.02770
1•theanonymousone•9m ago•0 comments

Workflow State Engine – Ferricstore

https://github.com/ferricstore/ferricstore
1•shadezer•9m ago•0 comments

I Stopped Checking My Mentions Dashboard. Now an Agent Drafts the Replies

https://tessakriesel.com/i-stopped-checking-my-mentions-dashboard-now-an-agent-drafts-the-replies/
1•mooreds•10m ago•0 comments

Ask HN: Fable 5 promo ends today – is anyone keeping it once it's usage-billed?

2•franze•12m ago•2 comments

Immigrants Use Less Welfare, Even Counting Their US-Born Children

https://www.cato.org/blog/immigrants-use-less-welfare-even-counting-their-us-born-children
6•mooreds•13m ago•0 comments

Euclid telescope spots oldest quasars ever discovered

https://www.cbsnews.com/news/oldest-quasars-ever-discovered-euclid-telescope/
1•gmays•15m ago•0 comments

Air Con in a Warming Climate

https://criminallyvulgar.dev/air-con-in-a-warming-climate/
2•speckx•16m ago•0 comments

Discord safety system falsely banned accounts for grid images, unban in progress

https://twitter.com/discord_support/status/2074282860123767135
3•exploraz•16m ago•1 comments

Show HN: AI Trading Agent via WhatsApp

https://getfarao.com/orus
1•joalavedra•17m ago•0 comments

I created an App that will do fact check for free

2•vanessa1211•18m ago•1 comments

Designing Beyond the Mean

https://dami.zip/blog/designing-beyond-the-mean/
1•FelineStateMach•18m 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 ...