Sep 2, 2026. Lopopolo argues the practice is mechanical rather than motivational: "All of 'harness engineering' is essentially tricks to provide JIT opportunities for ICL to align model behavior with what good looks like for you..." The post had 3,136 views and 52 likes at 26 hours, modest reach for this framing.
In the News: September 3, 2026
Developer Scott Fryxell reports cutting Fable usage 75% after adopting a five-role harness and using a cheaper model by default.
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A developer cut frontier-model usage 75% by giving the harness five roles
Fryxell runs three coding-agent TUIs, Cursor, Claude, and Pi, sharing one set of skills and one AGENTS.md, and defaults to the cheaper deepseek-v4-flash-0731 for maintenance work, reaching for frontier models only when exploring a large…
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