aiqbench analysis

This article is primarily about an AI agent framework, so it passes the topic gate. Harness2 is an open-source tool for improving agents at test time by rewriting their harness rather than retraining weights, and the reported 11.5-point gain on WorkBuddy-Bench is a single benchmark result from one refinement step, so readers should wait for independent replication before treating it as a general improvement. The main value for practitioners is the approach itself: test-time harness optimization as a lower-cost alternative to fine-tuning for agent performance.