AutoDesign: Self-Evolving Harness for Long-Horizon Agentic Design

机器之心 · wechat · 2026-08-21

AutoDesign introduces a Meta-Harness Optimization framework to iteratively improve the Harness (process orchestrator) in multi-agent systems. Using a dual-loop architecture, the inner loop executes design tasks while the outer loop analyzes trajectories to identify failure patterns and update Harness components via a Code Agent (modifying one component at a time to ensure credit assignment). Validated on a "Paper-to-Poster" task with the proposed PosterBench (100 papers), AutoDesign's score improved from 49 to 80.9 through self-evolution. It outperforms Claude Design by 7.45 points under equivalent settings and boosts Coding Agent performance by an average of 12.4 points.

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