![[no one cares for your agent – Slide 2.png]] everyone is staring at the model -- fable, opus, 5.5, 5.6 there is another place to look. the real leverage is the harness: wrapped around the model to define what it can know, trust, build, and ship. recent leak of the code of claude code shows that 98% is not the LLM but the harness around it. the model writes code. the harness decides what "good" means. the model asks for tools. the harness decides which tools exist. the model says "done." the harness tells it to eff off until the conditions are met. harness is where accountability lives. not in the leaderboard or shiny benchmark not in the demo or the model card. in the docs it reads. the tools it holds. the tests it trusts. the permissions it adheres to. the review loop that breaks its happy "i am all done and all good" a coding agent is the model PLUS the harness. did you already build yours? #agents #agent_harness #artificial_intelligence #incontext_post #incontext --- // 6 jul 2026, berlin