Simon Willison's Weblog

Inline rendering with document​.currentScript

web-edit 0.1a2

Release:web-edit 0.1a2

Quoting Addy Osmani, Morgan Westlee Lunt, and Qing Wang

We think "did a human read the code?" is an imprecise proxy for "what could go wrong with this change, and which check—automated or human—is the right one to catch it?"

Chirp Pong

Tool:Chirp Pong

Anthropic tells investors quarterly revenue up nearly 50% to $16.8bn ahead of IPO

LaTeX renderer

Tool:LaTeX renderer

Tree Appreciator

Tool:Tree Appreciator

AI is mass decompiling games. That's both awesome and scary.

Redesigning source control at Anthropic

llm-gemini 0.35

Release:llm-gemini 0.35

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: fai...

web-edit 0.1a1

Release:web-edit 0.1a1

llm-meta-ai 0.2

Release:llm-meta-ai 0.2

Hello Python 3.15, goodbye 3.10, and now I can use 3.11

Python 3.15 is here! Here's the essential What's new in Python 3.15 guide, this year curated by 3.14 and 3.15 release manager Hugo van Kemenade. As someone who builds open source software that works in every supported Python version, I get to say goodbye to Python 3.10 and start...

Profiling web-edit with Python 3.15: flame graphs and source heatmaps

Research:Profiling web-edit with Python 3.15: flame graphs and source heatmaps

web-edit 0.1a0

Release:web-edit 0.1a0

datasette-ports 0.4

Release:datasette-ports 0.4

Dwarf Fortress uses version control now

I remember hearing a while ago that Dwarf Fortress didn't use version control. That fact has been lodged in my head, because given its inherent complexity I have trouble imagining a codebase that would benefit from version control more. That's art.

Python 3.15.0 added to actions/python-versions

Quoting The New York Times

Anthropic detailed the activity of its A.I. agents in a blog post on Friday, without naming the targeted websites. But two sources with knowledge of the incidents said Anthropic’s A.I. agents had submitted 20 visa applications through a form available on the State Department’s we...