Simon Willison

Everything Fervor AI has published that touches Simon Willison — 4 pieces, newest first.

• Hard Budget Caps for AI Agents Stop Different Things on Every Platform

  Hard budget caps now exist on AWS, Google Cloud, the OpenAI API and the Claude API, but each one stops something different, from AWS pausing a whole project and deleting…

• Briefing · October 4, 2026 · morning

  Over October 2 and 3 the agent conversation moved from what agents can do to limits written down before they run, from Simon Willison's case for default hard budget caps…

• ChatGPT Work Mounts One Filesystem Into Every Session You Have Running

  ChatGPT Work Cloud's /workspace is one writable volume shared across sessions, and a write that lands there crosses no sandbox boundary, so the auto-review reviewer…

• scriptc Compiles TypeScript to Native Binaries With No JavaScript Engine Inside. Coding Agents Wrote Most of It.

  Scriptc's real question is not whether TypeScript can compile to native binaries but whether a compiler written at agent speed can be trusted, and the only honest answer…