Flux
The Toolkit Pattern

The Toolkit Pattern

This is the third article in a series on agentic engineering and AI-driven development. Read part one here, part two here, and look for the next article on April 15 on O’Reilly Radar. The toolkit pattern is a way of documenting your project’s configuration so that any AI can generate working inputs from a plain-English description. […]

O'Reilly Radar — AI/ML
March 2026 sponsors-only newsletter

March 2026 sponsors-only newsletter

I just sent the March edition of my sponsors-only monthly newsletter. If you are a sponsor (or if you start a sponsorship now) you can access it here. In this month's newsletter: More agentic engineering patterns Streaming experts with MoE models on a Mac Model releases in March Vibe porting Supply chain attacks against PyPI and NPM Stuff I shipped What I'm using, March 2026 edition And a couple of museums Here's a copy of the February newsletter as a preview of what you'll get. Pay $10/month…

Simon Willison's Weblog
The Model You Love Is Probably Just the One You Use

The Model You Love Is Probably Just the One You Use

The following article originally appeared on Medium and is being republished here with the author’s permission. Ask 10 developers which LLM they’d recommend and you’ll get 10 different answers—and almost none of them are based on objective comparison. What you’ll get instead is a reflection of the models they happen to have access to, the […]

O'Reilly Radar — AI/ML
datasette-llm-usage 0.2a0

datasette-llm-usage 0.2a0

Release: datasette-llm-usage 0.2a0 Removed features relating to allowances and estimated pricing. These are now the domain of datasette-llm-accountant. Now depends on datasette-llm for model configuration. #3 Full prompts and responses and tool calls can now be logged to thellm_usage_prompt_log table in the internal database if you set the new datasette-llm-usage.log_prompts plugin configuration setting. Redesigned the /-/llm-usage-simple-prompt page, which now requires the…

Simon Willison's Weblog
Quoting Soohoon Choi

Quoting Soohoon Choi

I want to argue that AI models will write good code because of economic incentives. Good code is cheaper to generate and maintain. Competition is high between the AI models right now, and the ones that win will help developers ship reliable features fastest, which requires simple, maintainable code. Good code will prevail, not only because we want it to (though we do!), but because economic forces demand it. Markets will not reward slop in coding, in the long-term. — Soohoon Choi, Slop Is…

Simon Willison's Weblog
Supply Chain Attack on Axios Pulls Malicious Dependency from npm

Supply Chain Attack on Axios Pulls Malicious Dependency from npm

Supply Chain Attack on Axios Pulls Malicious Dependency from npm Useful writeup of today's supply chain attack against Axios, the HTTP client NPM package with 101 million weekly downloads. Versions 1.14.1 and 0.30.4 both included a new dependency called plain-crypto-js which was freshly published malware, stealing credentials and installing a remote access trojan (RAT). It looks like the attack came from a leaked long-lived npm token. Axios have an open issue to adopt trusted publishing, which…

Simon Willison's Weblog
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