Home

Junie started as an experiment. We asked, “What if an AI coding agent didn’t just guess at the details of your project, but actually used the same tools you do?” Over the last year, that experiment turned into a product…

Every developer has tools they rely on daily. The workflows they’ve built around them, the ways they’ve learned to move faster, debug smarter, and write better code – that kind of hands-on experience can be hard to put into words.…

If you want to dive straight into the technical details, you can read our full paper here. Imagine you are mentoring a junior developer. If they make a single logical error on line 42 of a 100-line script, do you…

There is no official Binance API for reading Binance Square posts in real time. The public Square endpoint only lets you publish content, not monitor it. So tracking Square posts in real time usually means scraping the web app on…

비트코인의 혁신적인 정신에서 태어난 암호화폐 시장은 이제 수천 개의 디지털 자산이 뒤섞인 광대한 생태계로 성장했다. 비트코인과 이더리움이라는 두 거인 너머에는 비트코인을 제외한 모든 암호화폐를 지칭하는 ‘알트코인’이라는 거대한 우주가 펼쳐져 있다. 혁신적인 기술, 더 빠른 거래 속도, 강화된 프라이버시, 새로운 사용…

Transformers changed NLP because they stopped treating text as a simple left-to-right chain. Instead of reading one token at a time, they compare tokens directly. That shift made modern language models faster, more scalable, and better at understanding context. Core…

Anthropic launched Fable 5 on June 9, 2026. At 5:21 PM Eastern on June 12 — seventy-two hours later — the US government ordered the model offline for every user on the planet. If your production agents had moved to…

Originally published at thunderkitty.app/learn Thunder Kitty’s Labs features run topic segmentation and agenda tracking live, entirely on-device — and getting a sentence-embedding model onto the Neural Engine took seven attempts and a fight with a silent CoreML bug. Thunder Kitty…

Three days after launch, the US government ordered Anthropic to pull its two highest-tier models off the market. Not suspend them for some users. Not restrict access by region. Pull them for everyone, everywhere — including Anthropic’s own employees. The…

Transformers changed AI because they stopped reading sequences one token at a time. Instead of moving step by step like an RNN, a Transformer compares tokens directly. That one design shift made modern LLMs possible. Core Idea A Transformer is…

Building an AI agent prototype is relatively easy. With an LLM, a retrieval pipeline, and several API connections, developers can create an impressive demonstration within days. The real challenge begins when the system reaches production. Real users submit unclear requests,…

Every time I start a new project, the same thing happens. I get the layout working, then I completely freeze on colors. I grab a color, drop it in, squint at it, change it, and half an hour later I’ve…

When the US government effectively forced Anthropic to suspend access to some of its newest AI models over security concerns (Fable 5, Mythos 5), much of the debate immediately split into familiar camps. One side saw government overreach. The other…

New research from HKUST (arXiv:2606.14517, June 12) turns the agent safety layer into the attack surface. What happened Reasoning-based guardrails — the LLM safety layers that screen an agent’s actions — can be trapped in their own analysis. Crafted inputs…

Ask Claude this, today, with no setup: “What did user 4421 do in our app yesterday?” You will get an answer. It will be confident, specific, and completely made up. Claude has no access to your production database. So it…

Verbose is a small experimental language I’m building. Its compiler proves properties about your code — like termination — and emits tiny, readable x86-64 machine code: no runtime, no GC, no libc. This post stands on its own (you don’t…

Great Stack to Doesn’t Work #9 Distributed Tracing: “Why Does This Request Take 3 Seconds?” A survival guide for when everything goes wrong in production. A user clicks “Place Order.” The spinner spins. Three seconds pass. The order completes. Three…

In the previous articles of this series, we covered the network and security layers of the authentication service: PKCS#12, timing oracle, mTLS, CRL. Let’s now dive into the application architecture. The service is built with CQRS + Event Sourcing, and…

Tribal knowledge is two different things wearing one name. The half everyone panics about losing was declared in your Terraform, your Dockerfiles, and your CI config the whole time. It usually starts with a calendar invite that has no agenda.…

For decades, science fiction has cushioned us with the idea that the “android revolution” was a distant fantasy. But the reality is unfolding rapidly. As the line between human and machine blurs, we are forced to confront an impending psychological,…

Introduction I’m Calvin, a backend engineering intern at HNG, currently wrapping up HNG14. This post is about two tasks from the internship that genuinely humbled me — one individual, one team. Not the tasks I completed smoothly. The ones that…