Simon Willison's Weblog simonwillison.net

I built something that changed my friend group's social fabric

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Sandboxed tools in a loop

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Table saws

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Quoting Charles Babbage

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Mandelbrot in x86 assembly by Claude

simonwillison.net·43w·Hacker News

TIL: Using Playwright MCP with Claude Code

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Quoting Kevin Webb

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PlanetScale's classy retirement

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A custom template system from the mid-2000s era

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Announcing PlanetScale for Postgres

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Quoting mrmincent

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June newsletter for sponsors has been sent

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Using Claude Code to build a GitHub Actions workflow

simonwillison.net·43w

microsoft/vscode-copilot-chat

simonwillison.net·43w

llvm: InstCombine: improve optimizations for ceiling division with no overflow - a PR by Alex Gaynor and Claude Code

simonwillison.net·43w·Lobsters, Hacker News

Agentic Coding: The Future of Software Development with Agents

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Tip: Use keyword-only arguments in Python dataclasses

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How to Fix Your Context

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Context engineering

simonwillison.net·44w·Hacker News

Continuous AI

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