Harness Engineering Notes From Shipping Real Agents

Model-task fit matters enough that harness design becomes a first-class engineering discipline

harness (library) building is hard! some notes from doing Harness Engineering since last year on our libraries + having a blast working with teams shipping real agents to prod: 1. Model-Harness-Task fit. I can’t stress this enough. The

Ranked #21 on backlist 2026-06-19 (19 Jun 2026 UTC) · by @Vtrivedy10 (Viv) · view on X ↗

How it ranks: Backlist reads my Twitter/X timeline, scores every tweet for substance with an LLM rubric (not engagement), and publishes the daily top picks with a one-line takeaway. Curated by Surya Dantuluri.