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OpenCiv3: Open-source, cross-platform reimagining of Civilization III

https://openciv3.org/
367•klaussilveira•4h ago•76 comments

The Waymo World Model

https://waymo.com/blog/2026/02/the-waymo-world-model-a-new-frontier-for-autonomous-driving-simula...
736•xnx•10h ago•451 comments

Show HN: Look Ma, No Linux: Shell, App Installer, Vi, Cc on ESP32-S3 / BreezyBox

https://github.com/valdanylchuk/breezydemo
127•isitcontent•4h ago•13 comments

Monty: A minimal, secure Python interpreter written in Rust for use by AI

https://github.com/pydantic/monty
103•dmpetrov•5h ago•48 comments

A century of hair samples proves leaded gas ban worked

https://arstechnica.com/science/2026/02/a-century-of-hair-samples-proves-leaded-gas-ban-worked/
47•jnord•3d ago•3 comments

Show HN: I spent 4 years building a UI design tool with only the features I use

https://vecti.com
230•vecti•6h ago•108 comments

Dark Alley Mathematics

https://blog.szczepan.org/blog/three-points/
17•quibono•4d ago•0 comments

Microsoft open-sources LiteBox, a security-focused library OS

https://github.com/microsoft/litebox
300•aktau•11h ago•148 comments

Sheldon Brown's Bicycle Technical Info

https://www.sheldonbrown.com/
300•ostacke•10h ago•80 comments

Show HN: If you lose your memory, how to regain access to your computer?

https://eljojo.github.io/rememory/
151•eljojo•7h ago•116 comments

Hackers (1995) Animated Experience

https://hackers-1995.vercel.app/
370•todsacerdoti•12h ago•214 comments

Show HN: R3forth, a ColorForth-inspired language with a tiny VM

https://github.com/phreda4/r3
41•phreda4•4h ago•7 comments

An Update on Heroku

https://www.heroku.com/blog/an-update-on-heroku/
299•lstoll•11h ago•222 comments

I spent 5 years in DevOps – Solutions engineering gave me what I was missing

https://infisical.com/blog/devops-to-solutions-engineering
98•vmatsiiako•9h ago•32 comments

How to effectively write quality code with AI

https://heidenstedt.org/posts/2026/how-to-effectively-write-quality-code-with-ai/
164•i5heu•7h ago•119 comments

Learning from context is harder than we thought

https://hy.tencent.com/research/100025?langVersion=en
134•limoce•3d ago•75 comments

Understanding Neural Network, Visually

https://visualrambling.space/neural-network/
221•surprisetalk•3d ago•29 comments

FORTH? Really!?

https://rescrv.net/w/2026/02/06/associative
32•rescrv•12h ago•14 comments

I now assume that all ads on Apple news are scams

https://kirkville.com/i-now-assume-that-all-ads-on-apple-news-are-scams/
949•cdrnsf•14h ago•409 comments

The Oklahoma Architect Who Turned Kitsch into Art

https://www.bloomberg.com/news/features/2026-01-31/oklahoma-architect-bruce-goff-s-wild-home-desi...
15•MarlonPro•3d ago•2 comments

I'm going to cure my girlfriend's brain tumor

https://andrewjrod.substack.com/p/im-going-to-cure-my-girlfriends-brain
21•ray__•1h ago•3 comments

Claude Composer

https://www.josh.ing/blog/claude-composer
90•coloneltcb•2d ago•65 comments

Show HN: Smooth CLI – Token-efficient browser for AI agents

https://docs.smooth.sh/cli/overview
76•antves•1d ago•56 comments

Evaluating and mitigating the growing risk of LLM-discovered 0-days

https://red.anthropic.com/2026/zero-days/
31•lebovic•1d ago•10 comments

Show HN: Slack CLI for Agents

https://github.com/stablyai/agent-slack
36•nwparker•1d ago•7 comments

How virtual textures work

https://www.shlom.dev/articles/how-virtual-textures-really-work/
22•betamark•11h ago•21 comments

The Beauty of Slag

https://mag.uchicago.edu/science-medicine/beauty-slag
26•sohkamyung•3d ago•3 comments

Evolution of car door handles over the decades

https://newatlas.com/automotive/evolution-car-door-handle/
37•andsoitis•3d ago•59 comments

Planetary Roller Screws

https://www.humanityslastmachine.com/#planetary-roller-screws
33•everlier•3d ago•6 comments

Masked namespace vulnerability in Temporal

https://depthfirst.com/post/the-masked-namespace-vulnerability-in-temporal-cve-2025-14986
29•bmit•6h ago•3 comments
Open in hackernews

Show HN: Quibbler – A critic for your coding agent that learns what you want

https://github.com/fulcrumresearch/quibbler
114•etherio•3mo ago

Comments

cjonas•3mo ago
Vibeception
gexla•3mo ago
More explanation here that I found by Googling around. Though not sure it has more info than the Github page.

https://fulcrumresearch.ai/2025/10/22/introducing-orchestra-...

etherio•3mo ago
hey HN! happy to answer any questions

this kind of tool is especially useful in longer running tasks to enforce your intent without having to check in on your agent all the time

anonymous908213•3mo ago
Can users stack Quibblers, so Quibbler 2 corrects Quibbler 1 if, say, it fabricates an issue in the code it's reviewing? If so, have you found an optimum number of Quibblers for the Quibbler stack? Also, might users form a Quibbler council such that multiple Quibblers review the same thing and form a consensus before proceeding?
Balinares•3mo ago
I love the pixel-perfect precision with which this comment is straddling the Poe's Law line.

That aside I also love the concept of Quibbler Council and I'd get a kick out of seeing it in action.

sheepscreek•3mo ago
MoQs - Mixture of Quibblers? Would be convenient to have them run on dedicated FGPAs. Then they can facilitate near real-time quibbing at the network level across all packets.
qq66•3mo ago
> We’ve found Quibbler useful in preventing agents from: 1) fabricating results without running commands

What a world we've created for ourselves

N_Lens•3mo ago
Next step is critics for the critics.
CoastalCoder•3mo ago
Until they reach critical mass.
anonymous908213•3mo ago
But who polices the vibe police?
Brajeshwar•3mo ago
“Well, who’s gonna monitor the monitors of the monitors?” — Enemy of the State (Movie)
p0w3n3d•3mo ago
In other words, the Quibbler siphons wrackspurts away from your code.
selfawareMammal•3mo ago
An agent's agent?
hikarudo•3mo ago
A gentleman's gentleman!
oneandonley1•3mo ago
Sounds like a wip to me, "do it better or get punished"
balleddog•3mo ago
Is an anthropic api key really necessary? A major roadblock for taking a test drive. Already have a Claud Max subscription but an anthropic api key still need at least 5$/mon extra.
thenthenthen•3mo ago
Sounds like video streaming services…
asn0•3mo ago
You could use the prompts in the code to create a Claude Code sub-agent[1], which would do the same thing without an API key

1. https://docs.claude.com/en/docs/claude-code/sub-agents

threecheese•3mo ago
How would you invoke the subagent? Can a HookResponse cause a subagent to be invoked, to perform analysis on the action taken and then inject that back into the main loop?

Or would the hook invoke another instance of claude code?

I just read through the hook docs and I’m a bit fuzzy on the bidirectionality of it.

epiccoleman•3mo ago
I really want Anthropic to let me make an API token that pulls from the same pool of usage that my Pro subscription does with the official clients. It would be cool to be able to run experiments with alternate clients and automation and stuff without having to go swipe the card at the ol' API token refilling station.
janpio•3mo ago
The demo video in the GH page didn't work for me, but there is also one on Twitter/X: https://xcancel.com/fulcrumML/status/1984054489851310191
mouse_•3mo ago
There's so many agents to handle my agents, I'm gonna need agents for my agent agents soon.
vismit2000•3mo ago
Reminds of factory factory factory! https://factoryfactoryfactory.net/
nberkman•3mo ago
Submitted a PR with AWS Bedrock support: https://github.com/fulcrumresearch/quibbler/pull/5/files (credits!)
agarttha•3mo ago
Replace the middle manager
stacktraceyo•3mo ago
Can the same concept be used for non coding tasks?
benzible•3mo ago
Cool concept, but I picture Quibbler as an off-brand Batman villain.