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Show HN: OpenCastor Agent Harness Evaluator Leaderboard https://ift.tt/ev9cg0i
Show HN: OpenCastor Agent Harness Evaluator Leaderboard I've been building OpenCastor, a runtime layer that sits between a robot's hardware and its AI agent. One thing that surprised me: the order you arrange the skill pipeline (context builder → model router → error handler, etc.) and parameters like thinking_budget and context_budget affect task success rates as much as model choice does. So I built a distributed evaluator. Robots contribute idle compute to benchmark harness configurations against OHB-1, a small benchmark of 30 real-…
Show HN: Cq – Stack Overflow for AI coding agents https://ift.tt/zKa9i7o
Show HN: Cq – Stack Overflow for AI coding agents Hi all, I'm Peter at Staff Engineer and Mozilla.ai and I want to share our idea for a standard for shared agent learning, conceptually it seemed to fit easily in my mental model as a Stack Overflow for agents. The project is trying to see if we can get agents (any agent, any model) to propose 'knowledge units' (KUs) as a standard schema based on gotchas it runs into during use, and proactively query for existing KUs in order to get insights which it can verify and confirm if they pr…
Show HN: Shrouded, secure memory management in Rust https://ift.tt/ErhzsLw
Show HN: Shrouded, secure memory management in Rust Hi HN! I've been building a project that handles high-value credentials in-process, and I wanted something more robust than just zeroing memory on drop. A comment on a recent Show HN[0] made me realize that awareness of lower-level memory protection techniques might not be as widespread as I thought. The idea here is to pull out all the tools in one crate, with a relatively simple API. * mlock/VirtualLock to prevent sensitive memory from being swapped (eg the KeePass dump) * Core dump exc…
Show HN: WhyThere.life – Compare cities side-by-side to decide where to move https://ift.tt/DVacogL
Show HN: WhyThere.life – Compare cities side-by-side to decide where to move We posted a couple of months ago and you all seemed to like what we're putting together. Since then we've added a lot! -Editorial articles -Explore cities by filter -Saved & Grouped comparisons -Many more data points and higher quality data https://whythere.life March 24, 2026 at 12:00AM
Show HN: Refrax – my Arc Browser replacement I made from scratch https://ift.tt/q8rnJ43
Show HN: Refrax – my Arc Browser replacement I made from scratch Open the same tab in two browser windows. In Chrome or Safari, you get two unconnected pages. In Arc, one window shows a placeholder. In Zen, it silently creates a duplicate. In Refrax, the browser I built, both windows show the same page updating live. The same web page, in as many windows as you want. This shouldn't be possible. WebKit's WKWebView can exist in exactly one view hierarchy at a time. With macOS 26, Apple added a SwiftUI API separating WebView from WebPage,…
Show HN: Foundations of Music (FoM) https://ift.tt/KuUfyD2
Show HN: Foundations of Music (FoM) Foundations of Music is an attempt to establish a conceptual and formal foundation for understanding music. Rather than declaring what music is, FoM shows where and how music becomes possible. It provides simple explanations to complex concepts like vibrato, glissando, and portamento to outsiders. It enables new vocabulary like jazzing, jazzing aroung, jazzing along, and jazz translation which are mind refreshing, at least to me. For a sample of translation (Turkish Folk to Blues) you may see: https://www.yo…
Show HN: The Two by Two Truth Diagram https://ift.tt/R30pQVz
Show HN: The Two by Two Truth Diagram I am diagnostic radiologist with over 40 years experience. In diagnostic testing, many terms are used to describe how well the test detects the disease or disorder. Examples are “sensitivity”, “specificity”, “predictive values”, “odds ratio”, “likelihood ratios” and numerous others. In the literature and medical presentations there is often not much consistency in their use; as a physician listening to or reading research, I was perpetually unclear on how these terms “fit together”. My solution was to inve…
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