Co-Existence Book Website
www.oneusefulthing.org- Category
- Other
- Pricing
- Free
- Type
- ARTICLE
- Builder
- @emollick
- Added
- Jul 21, 2026
About
The promotional website for Ethan Mollick's book 'Co-Existence,' notable for including a dedicated version of the page addressed to AI agents that read on behalf of human users. The site was built with Claude Code and A/B tested against dozens of AI models to optimize how it presents to both humans and AI readers.
Why it made the leaderboard
If you build websites or content that AI agents will read on a user's behalf, this shows a concrete pattern for designing dual human/AI-facing pages and A/B testing presentation against LLMs — plus a candid look at prompt-injection tricks worth understanding to defend against.
Tags
aibookclaude-codeprompt-injectionai-agentswritingllm
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