WriterUS

Ethan Mollick

Professor at Wharton; author of One Useful Thing

Wharton professor who studies AI and work and writes One Useful Thing. His 2026 posts "Claude Code and What Comes Next" and "A Guide to Which AI to Use in the Agentic Era" brought harness framing to a general audience.

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Quoted in the State of Harness report

“Increasingly, however, what matters is the harness - the tools the AI has access to.”
Quoted in State of Harness — October 2026: Coding is the beachhead: agent use nearly doubled in a year, and personal agents are the breakout · original

Sources

oneusefulthing.org/about
oneusefulthing.org/p/claude-code-and-what-comes-next

Verified Oct 29, 2026