Simon Willison’s Weblog

26th September 2023

None

TIL Snapshot testing with Syrupy — I'm a big fan of snapshot testing - writing tests where you compare the output of some function to a previously saved version, and can re-generate that version from scratch any time something changes.

Posted 26th September 2023 at 11:39 pm

Recent articles

One-shotting a Raccoon Heist game using Claude Fable 5 - 5th August 2026
New release of LLM adds support for reasoning traces, OpenAI Responses, server-side tools, and smarter logging - 4th August 2026
Stateless MCP has recaptured my interest (and inspired mcp-explorer and datasette-mcp) - 31st July 2026

This is a beat by Simon Willison, posted on 26th September 2023.

Monthly briefing

Sponsor me for $10/month and get a curated email digest of the month's most important LLM developments.

Pay me to send you less!

Sponsor & subscribe