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Top Articles of the Day | 15-Jul-2026

Read the best articles of today, from around the globe, curated at one place for you!

AI & Data

Pick #1
Show HN: I RL-trained an agent that trains models with RL (for ~$1.3k)
Hacker News 97 points

RL-training an AI agent to RL-train AI agents. Contribute to Danau5tin/ai-trains-ai development by creating an account on GitHub.

Pick #2
Six experiments on adversarial verification — and the 75% wall that didn't move
Dev.to 6 min read 5 reactions

The argument, in one line: a reviewer is a mechanism for drawing a line. Every fix moves the line —...

Pick #3
Power BI Meets SQL: The Love Story Your Data Never Knew It Needed
Dev.to 5 min read 4 reactions

Picture this: You've got a SQL database sitting quietly on a server somewhere, holding thousands of...

Product

Pick #1
Codex starts encrypting sub-agent prompts
Hacker News 412 points

What version of Codex CLI is running? Upstream main after #26210 (Encrypt multi-agent v2 message payloads, merged 2026-06-05). This appears to affect versions that include that change and enable Mu...

Pick #2
Stop Saying You Want Ownership Mindset
Dev.to 5 min read 27 reactions

My 2nd article this week, I'm supposed to keep it to just once per week but whateverrr, I've had this...

Pick #3
A Dash of dev.to: My Blog Stats Now Live in the Terminal
Dev.to 6 min read 19 reactions

Hello, I'm Maneshwar. I'm building git-lrc, a Micro AI code reviewer that runs on every commit. It is...

Programming

Pick #1
How I made a Rust hot path 27x faster, and the AI fix I refused to merge
Dev.to 7 min read 6 reactions

Two years ago I open-sourced KeyEcho, a small desktop app that plays a mechanical-keyboard sound the...

Pick #2
Understanding Data Types and Operators in C: The Foundation Every Beginner Should Master
Dev.to 5 min read 5 reactions

If you're learning C f, this is one topic you simply can't skip. Every C program—whether it's a...

Pick #3
Your CDN says it is protecting you. I checked, and 0% of the traffic was cached.
Dev.to 5 min read 5 reactions

You put your site behind a CDN, watched the dashboard turn green, and moved on. The edge will soak up...

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