Simon Willison (10 hours ago)

I Shipped a macOS App Built Entirely by Claude Code

Simon Willison (23 hours ago)

Quoting Nineteen Eighty-Four

Simon Willison (2025-07-06)

Supabase MCP can leak your entire SQL database

Simon Willison (2025-07-05)

Serving 200 million requests per day with a cgi-bin

Simon Willison (2025-07-05)

Cursor: Clarifying Our Pricing

Simon Willison (2025-07-04)

Identify, solve, verify

Simon Willison (2025-07-04)

awwaiid/gremllm

Simon Willison (2025-07-03)

Quoting Adam Gordon Bell

Simon Willison (2025-07-03)

TIL: Rate limiting by IP using Cloudflare's rate limiting rules

Simon Willison (2025-07-03)

Frequently Asked Questions (And Answers) About AI Evals

Simon Willison (2025-07-03)

Trial Court Decides Case Based On AI-Hallucinated Caselaw

Simon Willison (2025-07-03)

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

Simon Willison (2025-07-03)

Sandboxed tools in a loop

Simon Willison (2025-07-03)

Table saws

Simon Willison (2025-07-02)

Quoting Charles Babbage

Simon Willison (2025-07-02)

Mandelbrot in x86 assembly by Claude

Simon Willison (2025-07-01)

TIL: Using Playwright MCP with Claude Code

Simon Willison (2025-07-01)

Quoting Kevin Webb

Simon Willison (2025-07-01)

PlanetScale's classy retirement

Simon Willison (2025-07-01)

A custom template system from the mid-2000s era

Simon Willison (2025-07-01)

Announcing PlanetScale for Postgres

Simon Willison (2025-07-01)

Quoting mrmincent

Simon Willison (2025-07-01)

June newsletter for sponsors has been sent

Simon Willison (2025-07-01)

Using Claude Code to build a GitHub Actions workflow

Simon Willison (2025-06-30)

microsoft/vscode-copilot-chat

Simon Willison (2025-06-30)

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

Simon Willison (2025-06-29)

Agentic Coding: The Future of Software Development with Agents

Simon Willison (2025-06-29)

Tip: Use keyword-only arguments in Python dataclasses

Simon Willison (2025-06-29)

How to Fix Your Context

Simon Willison (2025-06-27)

Context engineering