{"slug": "harnesses-not-agents", "title": "Harnesses, not agents", "summary": "Production agentic AI deployments rely on robust harnesses—scaffolding for timeout, retry, observability, and rollback—rather than the model itself. The key research question for 2026 is finding minimal, legible scaffolding that ensures consistent model behavior.", "body_md": "# Harnesses, not agents\n\nWhat \"agentic AI\" actually ships in the wild.\n\nMost of the production agent work I do isn't really about the agent. It's about the harness — the boring stuff around the model that makes a thousand customer-shaped failures recoverable, observable, and cheap.\n\nA model that's 95% correct in a notebook becomes 0% deployable without a harness that can: time out a runaway tool call, retry an idempotent step, fan out work, surface intermediate state to a human, and roll back side effects when the plan changes mid-flight.\n\nThe interesting research question of 2026 isn't \"can the model do it.\" It's \"what's the smallest, most legible scaffolding under which the model can do it the same way twice.\"", "url": "https://wpnews.pro/news/harnesses-not-agents", "canonical_source": "https://harshalgajjar.com/blog/agent-harness-2026", "published_at": "2026-06-08 12:00:00+00:00", "updated_at": "2026-07-08 02:58:12.279405+00:00", "lang": "en", "topics": ["ai-agents", "ai-infrastructure", "ai-research"], "entities": [], "alternates": {"html": "https://wpnews.pro/news/harnesses-not-agents", "markdown": "https://wpnews.pro/news/harnesses-not-agents.md", "text": "https://wpnews.pro/news/harnesses-not-agents.txt", "jsonld": "https://wpnews.pro/news/harnesses-not-agents.jsonld"}}