The letter

One letter a week, in your inbox.

The signal of the week, what shipped, what to try, and the editor's note. No tracking, no ads, nothing else.

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Signal of the week

Agents & vibe coding · 99 stories, +77 vs last week

Agents & vibe coding: 99 stories in seven days, +77 on the week before.

Latest

Sakana AI, Turing among Japan startup winners as investors turn choosy

Nikkei Asia TechnologyJapanSakana AI, Turing among Japan startup winners as investors turn choosy Big Japan startup fundraising deals hit record in January-June half

September 14
Japan sees slower inflow of foreign professionals as AI crimps hiring

Nikkei Asia TechnologyJapanJapan sees slower inflow of foreign professionals as AI crimps hiring Government scrutiny contributes to drop in new arrivals during past year

September 14
Kioxia-linked cloud startup to make it easier to crunch encrypted data

Nikkei Asia TechnologyJapanKioxia-linked cloud startup to make it easier to crunch encrypted data Tokyo-based EmotionX sees potential uses in defense, finance

September 14
JustVugg/colibri

GitHub Trending (daily)GitHubJustVugg/colibri

September 14
ever-co/ever-gauzy

GitHub Trending (daily)GitHubever-co/ever-gauzy

September 14
bilawalsidhu/gods-eye-view

GitHub Trending (daily)GitHubbilawalsidhu/gods-eye-view

September 14
ayghri/i-have-adhd

GitHub Trending (weekly)GitHubayghri/i-have-adhd

September 14
affaan-m/ECC

GitHub Trending (weekly)GitHubaffaan-m/ECC

September 14
openai/plugins

GitHub Trending (weekly)GitHubopenai/plugins

September 14
AI leaders want to hit the brakes after years of reckless speed

Ars Technica AIValleyAI leaders want to hit the brakes after years of reckless speed For years now, the major frontier AI labs have all been acting as if they're in an all-out, winner-take-all race with control of world-changing machine superintelligence (or at least market-changing artificial general in

September 14
Autonomous LLM post-training with Tunix on TPUs

Google Developers BlogLabsAutonomous LLM post-training with Tunix on TPUs Imagine going to sleep after writing a single Markdown specification and waking up to find that an A...

September 14
The Anatomy of Harness Engineering: How to Evaluate, Iterate, and Guard AI Coding Agents

Google Developers BlogLabsThe Anatomy of Harness Engineering: How to Evaluate, Iterate, and Guard AI Coding Agents While end-to-end benchmarks like SWE-bench provide broad performance scores for AI agents, they are often expensive, slow, and lack the root-cause diagnostics needed to explain exactly where an agent's logic broke down.

September 14