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An LLM does not need to understand MCP
Model Context Protocol (MCP) has became the standard for tool calling when building agents, but contrary to popular belief your LLM does not need to understand MCP.
Topics /
Software Engineering
The most popular blog posts about software engineering on Hacker News. 1,747 posts.
1292
Two kinds of vibe coding
Back in 2009 I posted a simple Mandelbrot fractal viewer on the web: a single HTML file with inline Javascript. Just 329 lines of code, each pixel a tiny table cell. Click to zoom. Watch it iterate. That was about it!
1293
The unbearable slowness of AI coding
I’ve been coding entirely with Claude Code for the past two months. At first it was exhilarating. I was speeding through tasks. I was committing like mad.
1294
Root cause analysis? You're doing it wrong
If you have arrived here, you should know this is an early draft containing mostly unedited stream-of-consciousness crap because I have found it difficult to structure this topic. My latest attempt is to split this information up into multiple separate articles.
1295
Writing a blatant Telegram clone using Qt, QML and Rust. And C++
This was a fun project for a couple of days, but I will probably shelve it for now so I can continue what I was already working on before. Read on to follow along with my journey. Spoilers: I didn’t get very far.
1296
Death to type classes
Death (XIII) Symbolizes significant change, transformation, and endings, rather than literal physical death. Have you ever seen a Number grazing in the f
1297
PHP Core Security Audit Results
The PHP Foundation — Supporting, Advancing, and Developing the PHP Language
1298
When your hash becomes a string: Hunting Ruby's million-to-one memory bug
An "impossible" Ruby bug: Hashes becoming Strings at runtime. 2,700 identical crashes. No corruption. Just objects changing what they are. Deep dive.
1299
Subtleties of SQLite Indexes
Understanding query planner quirks yielded a ~35% speedup.
1300
Building a message queue with only two UNIX signals
Have you ever asked yourself what if we could replace any message broker with a very simple one using only two UNIX signals? Well, I'm not surprised if you
1301
MonkeysPaw – A prompt-driven web framework in Ruby
Be careful what you wish for...
1302
Llamafile Returns
Mozilla.ai is adopting llamafile to advance open, local, privacy-first AI—and we’re inviting the community to help shape its future.
1303
Go 1.24 Is Released
Go 1.24 brings generic type aliases, map performance improvements, FIPS 140 compliance and more.
1304
Independently verifying Go's reproducible builds
Introducing Source Spotter, a Go Checksum Database auditor and Go toolchain reproducer
1305
Implementing a Game Boy emulator in Ruby
Introduction I created a Game Boy emulator in Ruby and released it as a gem called rubyboy! (I’d be happy if you could give it a star!) And now it runs in the browser using WebAssembly! Try the demo in your browser! Screenshots Rubyでゲームボーイのエミュレータを作りました！ カラー対応やWasmでブラウザ対応もやっていきたい💪 GitHub: https://t.co/hFwmZD6FNp…
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Caching is an abstraction, not an optimization
I've always been told that caching is a tool to make software faster. That, given some careful considerations to consistency, caching makes it so that when...
1309
Past, present, and future of Sorbet type syntax
A discussion of how Sorbet's type syntax came to be, the problems it solves, and how it could improve.
1310
AI code review: Should the author be the reviewer?
AI reviewing AI-generated code - genius or pointless? Deep analysis of AI code review paradox + real data on why it actually works better than humans.
1311
Nix Derivations, Without Guessing
I went on a little low-level Nix adventure yesterday and early this morning because of this excellent blog post. In it, Farid builds up the simplest possible Nix derivation—making a file that has the contents “hello world”. Here’s what I like about it:
1312
PyPI Preventing Domain Resurrection Attacks
PyPI now checks for expired domains to prevent domain resurrection attacks, a type of supply-chain attack where someone buys an expired domain and uses it to take over PyPI accounts through password resets.
1313
Bilinear down/upsampling, aligning pixel grids, and that infamous GPU half pixel (2021)
See this ugly pixel shift when upsampling a downsampled image? My post describes where it can come from and how to avoid those! It’s been more than two decades of me using bilinear texture filterin…
1314
The problem with "vibe coding"
An article from dylanbeattie.net
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The Humble Programmer (1972)
As a result of a long sequence of coincidences I entered the programming profession officially on the first spring morning of 1952 and as far as I have been able to trace, I was the first Dutchman to do so in my country. In retrospect the most amazing thing was the slowness with which, at least in my part of the…
1316
The best worst hack that saved our bacon
No-one really likes engineering war stories, but this one's relevant because there's a moral to it. I've talked before about defining technical debt as technical decisions that provide immediate value, but with long-term negative impact if they aren't cleaned up. Sometimes introducing technical debt
1317
Pretty State Machine Patterns in Rust (2016)
A computer scientist working in open source towards a more hopeful future.
1318
Solving LinkedIn Queens with SMT
For sure easier than solving it in SAT!
1319
Crystal 1.16.0
We are announcing a new Crystal release 1.16.0 with several new features and bug fixes.
1320
Recursive Language Models (RLMs)
We explore language models that recursively call themselves or other LLMs before providing a final answer. The aim is essentially unbounded context, and a way through context rot.