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The unreasonable effectiveness of an LLM agent loop with tool use
How a simple loop enables powerful AI assistants
Topics /
Software Engineering
The most popular blog posts about software engineering on Hacker News. 488 posts.
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Why is Git Autocorrect too fast for Formula One drivers?
Why does Git's autocorrect wait 0.1s before executing a mistyped command? Let's dig in.
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Node.js is able to execute TypeScript files without additional configuration
Node.js® is a free, open-source, cross-platform JavaScript runtime environment that lets developers create servers, web apps, command line tools and scripts.
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D2 (text to diagram tool) now supports ASCII renders
In the latest release of D2 (0.7.1), we introduce ASCII outputs.
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PHP 8.5 adds pipe operator
The PHP Foundation — Supporting, Advancing, and Developing the PHP Language
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OpenZL: An open source format-aware compression framework
OpenZL is a new open source data compression framework that offers lossless compression for structured data. OpenZL is designed to offer the performance of a format-specific compressor with the eas…
97
Introducing command And commandfor In HTML
Learn about the new capabilities for declarative behavior on buttons.
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Behind the scenes of Bun Install
Learn how Bun is able to cut install times by up to 25×. Bun skips Node.js's overhead with direct system calls, cache-friendly data layouts, OS-level copy-on-write, and full-core parallelism.
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GitLab discovers widespread NPM supply chain attack
Malware driving attack includes "dead man's switch" that can harm user data.
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Rust in Android: move fast and fix things
Last year, we wrote about why a memory safety strategy that focuses on vulnerability prevention in new code quickly yields durable and compounding gains. This year we lo…
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(On | No) Syntactic Support for Error Handling
Go team plans around error handling support
103
Simplify your code: Functional core, imperative shell
This article was adapted from a Google Tech on the Toilet (TotT) episode. You can download a printer-friendly version of this TotT epis...
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Persona vectors: Monitoring and controlling character traits in language models
A paper from Anthropic describing persona vectors and their applications to monitoring and controlling model behavior.
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I stopped everything and started writing C again
Welcome to kmx.io
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Igalia, Servo, and the Sovereign Tech Fund
Igalia is an open source consulting firm specialised in the development of innovative projects and solutions. Our engineers have expertise in a wide range of technological areas, including browsers and client-side web technologies, graphics pipeline, compilers and virtual machines. We have the most WPE, WebKit…
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Python on the Edge: Fast, sandboxed, and powered by WebAssembly
With AI workloads on the rise, the demand for Python support on WebAssembly on the Edge has grown rapidly. However, bringing Python to WebAssembly isn'...
108
GPT-5-Codex
Codex just got faster, more reliable, and better at real-time collaboration and tackling tasks independently anywhere you develop—whether via the terminal, IDE, web, or even your phone.
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Things I would have told myself before building an autorouter
Important lessons from trying to build the world's fastest autorouter for about a year
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Code review can be better
Slightly unusual genre today: a negative result about our git-review tool for a different take on code review process, which we decided to shelve, at least for the time being.
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Elixir 1.19
Elixir v1.19 released: type checking of protocols and anonymous functions, broader type inference, improved compile times, and more.
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Run a C# file directly using dotnet run app.cs
Run C# files instantly with dotnet run app.cs, no project file needed! Coming to .NET 10, try it out today in Preview 4.
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SQLite concurrency and why you should care about it
SQLite is a powerful database engine, but due to its design, it has limitations that should not be overlooked.
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A bug saved the company
Fortune favors the buggy?
116
PyTorch Monarch
We now live in a world where ML workflows (pre-training, post training, etc) are heterogeneous, must contend with hardware failures, are increasingly asynchronous and highly dynamic. Traditionally, PyTorch has relied...
117
Porting Tailscale to Plan 9
Securely connect to anything on the internet with Tailscale. Built on WireGuard®️, Tailscale enables you to make finely configurable connections, secured end-to-end according to zero trust principles, between any resources on any infrastructure.
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GitHub introduces sub-issues, issue types and advanced search
Following our opt-in preview last year, we are excited to release sub-issues, issue types and advanced search for issues to everyone! 🎉 Thank you to everyone who opted-in and gave…
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Code formatting comes to uv experimentally
uv 0.8.13 adds experimental uv format command that runs Ruff's formatter, similar to how cargo fmt wraps rustfmt.
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