Simon Willison details how he used Claude Code to update his blog-to-newsletter tool. He provided a prompt to modify the tool's HTML and JavaScript to include a new content type called 'beats', which captures external posts like project releases or museum visits. The prompt also instructed the AI to ensure these beats were only included if they had additional descriptions, mirroring a logic already used for his blog's Atom feed, and to validate the changes by comparing the newsletter output to his blog's homepage. AI
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RANK_REASON The item describes an update to a personal tool using an AI agent, which falls under the 'tool' category.