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How the PHP Security Team Handles Your Reports

How the PHP Security Team Handles Your Reports

If you've ever sent a security report to PHP and then refreshed the advisory page every morning for three weeks, hi, this one's for you, and yes, we read it. PHP runs a large share of the web, so keeping it secure and staying responsive matters far beyond this project, and we take that seriously. There is a small group of volunteers and PHP Foundation contractors doing its best to handle security for PHP core with the limited time and resources available, and this post will show how we are…

The PHP Foundation
Redesigning source control at Anthropic

Redesigning source control at Anthropic

Redesigning source control at Anthropic Interesting piece from Anthropic describing why and how they built their own custom alternative to Git, based on the dramatic increase in rate of changes to their code after the past six months. In May 2026, Anthropic averaged around 2,500 code changes merged per day; as of September, we merged over 30,000 per day. They included a chart showing those changes. I had Claude modify their chart (code here) to add markers for the public releases of each of…

Simon Willison's Weblog
llm-gemini 0.35

llm-gemini 0.35

Release: llm-gemini 0.35 I added support to llm-gemini for the new Gemini 4 Argon model, made available today via the Gemini API and for customers of their $100/month subscription plan. Here are the low, medium and high pelicans. As expected, they are all excellent: Gemini has a track record of producing great SVGs, and are the only lab where I know their staff have invested in SVG specifically (and who have boasted about their pelicans before.) Here's the "high" illustration, which cost me…

Simon Willison's Weblog
Agent Baseline Publishes Security Reference Architecture for Software Factories

Agent Baseline Publishes Security Reference Architecture for Software Factories

Agents now write a large share of the code at some of the biggest engineering organizations. Uber says more than 70% of its pull requests are attributed to local or cloud agents, and its weekly agent requests grew 9.4 times between February and August. Stripe’s internal coding agents, which it calls Minions, write more than a thousand of the pull requests Stripe merges each week, and engineers can start one from a Slack message. Vercel’s factory for maintaining its AI SDK authored 25 to 35% of…

Socket
Quoting Geoffrey Huntley

Quoting Geoffrey Huntley

If the agent isn't using my diagnostics library, I could introspect and update AGENTS.md, but there's still a delta, and it'll drift. Instead, I write a pre-commit hook that checks the git diff for direct calls to observability modules that bypass my diagnostics module. Boom: fail the commit, inject a prompt telling the agent to use the diagnostics library. All of a sudden it's ten out of ten. — Geoffrey Huntley, nobody should type code by hand anymore. here's what's left. Tags:…

Simon Willison's Weblog
Why We Need Yet Another (OSS) Semantic Layer

Why We Need Yet Another (OSS) Semantic Layer

Most semantic layers come with a great declarative modeling language to define metrics and measures well1, but very soon after, you start building wrappers around the semantic layer that enable agentic work and context engineering, that work well with harnesses and interfaces, and that allow flexible queries at runtime, without the need to rebuild or recalculate the measures in YAML. The other problem is that most data warehouse or analytics solutions basically lock you in with their…

SSP Data Engineering Blog
llm-meta-ai 0.2

llm-meta-ai 0.2

Release: llm-meta-ai 0.2 Meta AI release Muse Wonder (and Muse Wonder Full), their new "most capable models". These look like they may be Meta's first Fable class models - Artificial Analysis scores Muse Wonder (Max) as equivalent to GPT-6.1 Sol. I updated my llm-meta-ai plugin for the new model. Here are pelicans for Muse Wonder for the six reasoning levels: minimal, low, medium, high, xhigh, max. This is the max one: For comparison, here are pelicans for Muse 1.3 (released September 2nd) and…

Simon Willison's Weblog
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