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Sep 7, 2026 · Artificial Intelligence

Agent Harness Evolves from Loop to Semantic Task Runtime: Six Core Abstractions

This weekly analysis reveals how agent harnesses are maturing from simple execution loops into full semantic task runtimes, detailing six core abstractions—Scope, Context, Capability, State, Execution, Policy—and a five-layer architecture that moves deterministic system concerns out of LLM prompts into runtime primitives.