This is a heavily interactive web application, and JavaScript is required. Simple HTML interfaces are possible, but that is not what this is.
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Simon Willison
simonwillison.net
did:plc:kft6lu4trxowqmter2b6vg6z
I use it for spelling, grammar, and basic fact checking with this prompt: https://simonwillison.net/guides/agentic-engineering-patterns/prompts/#proofreader
2026-08-28T12:57:18.266Z