TechBrief — تازه‌ترین اخبار فناوری

I recently noticed a recurring visual artifact in the "Most Replayed" heatmap on the YouTube player. The highest peaks were always surrounded by two dips. I got curious about why they were there, so I decided to reverse engineer the feature to find out.

This post documents the deep dive. It starts with a system design recreation, reverse engineering the rendering code, and ends with the mathematics.

This is also my first attempt at writing an interactive article. I would love to hear your thoughts on the investigation and the format.

Comments URL: https://news.ycombinator.com/item?id=46642173

Points: 11

# Comments: 2

Meta has discontinued its metaverse for work, too

Two months before it changed its name to "Meta," Facebook CEO Mark Zuckerberg personally introduced us to his metaverse for work: Horizon Workrooms, envisioned as a virtual space for workers to collaborate. Today, the company announced it's shutting that space down: "Meta has made the decision to discontinue Workrooms as a standalone app, effective February […]

The best Sonos speakers to buy in 2026

After the self-induced tumult Sonos went through last year, I can understand why some people are reluctant to spend money on the company’s products. But newly appointed CEO Tom Conrad has shown that he’s determined to get back on track and revitalize Sonos as the leading whole-home audio brand. The contentious mobile app is in […]

AI journalism startup Symbolic.ai signs deal with Rupert Murdoch’s News Corp

The startup claims its AI platform can help optimize editorial processes and research.

Here are the best Apple Watch deals available right now

In September, Apple launched its latest fleet of smartwatches, including the Apple Watch Series 11, the SE 3, and the Ultra 3. Each wearable offers something a little different (their prices indicate their breadth of features), and we’re already starting to see big price drops. Additionally, we’re still recommending some recent predecessors in Apple’s portfolio, […]

Show HN: Gambit, an open-source agent harness for building reliable AI agents

Hey HN!

Wanted to show our open source agent harness called Gambit.

If you’re not familiar, agent harnesses are sort of like an operating system for an agent... they handle tool calling, planning, context window management, and don’t require as much developer orchestration.

Normally you might see an agent orchestration framework pipeline like:

compute -> compute -> compute -> LLM -> compute -> compute -> LLM

we invert this so with an agent harness, it’s more like:

LLM -> LLM -> LLM -> compute -> LLM -> LLM -> compute -> LLM

Essentially you describe each agent in either a self contained markdown file, or as a typescript program. Your root agent can bring in other agents as needed, and we create a typesafe way for you to define the interfaces between those agents. We call these decks.

Agents can call agents, and each agent can be designed with whatever model params make sense for your task.

Additionally, each step of the chain gets automatic evals, we call graders. A grader is another deck type… but it’s designed to evaluate and score conversations (or individual conversation turns).

We also have test agents you can define on a deck-by-deck basis, that are designed to mimic scenarios your agent would face and generate synthetic data for either humans or graders to grade.

Prior to Gambit, we had built an LLM based video editor, and we weren’t happy with the results, which is what brought us down this path of improving inference time LLM quality.

We know it’s missing some obvious parts, but we wanted to get this out there to see how it could help people or start conversations. We’re really happy with how it’s working with some of our early design partners, and we think it’s a way to implement a lot of interesting applications:

- Truly open source agents and assistants, where logic, code, and prompts can be easily shared with the community.

- Rubric based grading to guarantee you (for instance) don’t leak PII accidentally

- Spin up a usable bot in minutes and have Codex or Claude Code use our command line runner / graders to build a first version that is pretty good w/ very little human intervention.

We’ll be around if ya’ll have any questions or thoughts. Thanks for checking us out!

Walkthrough video: https://youtu.be/J_hQ2L_yy60

Comments URL: https://news.ycombinator.com/item?id=46641362

Points: 44

# Comments: 11

My Gripes with Prolog

Article URL: https://buttondown.com/hillelwayne/archive/my-gripes-with-prolog/

Comments URL: https://news.ycombinator.com/item?id=46641348

Points: 40

# Comments: 28

دسته‌بندی‌ها

معمولی: گجت‌ها، نرم‌افزار، امنیت، AI، استارتاپ