'Loop Engineering' Crystallizes as the Named Successor to Prompt Engineering — Osmani, Cherny, Steinberger Lineage

Addy Osmani (Substack)·high signal

In June 2026 Addy Osmani (Google Chrome) popularized 'loop engineering' — designing the system that prompts, verifies, and remembers for the agent rather than typing prompts yourself — synthesizing Boris Cherny's (Anthropic) and Peter Steinberger's framing. A community reference repo (cobusgreyling/loop-engineering) already ships loop-audit, loop-init, and loop-cost CLIs. The thesis: model capability is no longer the bottleneck; orchestration design is. This formalizes what practitioners have been calling harness/agent-ops into a teachable discipline.