Simon Willison Ships datasette-ip-rate-limit 0.1a0 — Built Entirely with GPT-5.5 via Codex to Block Crawlers

Simon Willison·medium signal

Simon Willison released datasette-ip-rate-limit, a configurable IP-based rate limiting plugin for datasette.io to block hammering crawlers, built entirely with GPT-5.5 via OpenAI Codex desktop. This continues Willison's pattern of using AI coding tools for real production infrastructure — a practical demonstration that agentic engineering produces shippable plugins, not just prototypes. The plugin supports configurable blocking rules with IP-based rate limiting.