Obie Fernandez gave Claude Code one prompt—"Build me a markdown-based OS that makes me a world-class CTO"—and in three weeks produced 12,000 lines of institutional knowledge, processed 80+ meetings, and runs nine AI sessions daily. This enabled 30-second morning briefings and automated 1:1 prep. The post highlights how a single well-designed prompt can shift someone from occasional AI use to AI-driven workflows.
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