Harness Engineering with Nothing but Markdown

If coding agents aren't your primary battlefield, "harness engineering" probably feels like a distant concept. Scrolling through a timeline full of articles written for Claude Code and Codex users, you may have thought, "This isn't about me." My own agent use wasn't centered on coding either, so none of the articles out there seemed to apply to my case. But looking back, I'd been doing the same thing — it just didn't have a name yet. I've been running a business automation agent via Claude Deskt