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Yonggang Zhang

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Preprint Sep 2026

A Theory of Reliable Self-Evolution for Agent Harnesses

In harness self-evolution, agents modify their own prompts, code, tools, and orchestration while keeping the underlying language model fixed. Recent work has shown that agents can improve themselves in response to task failures and achieve substantial performance gains. However, gains on failed tasks do not automatical...

Qi Cai, Yong-Gang Zhang, Jun Nie et al. · 2 citations · ⚡2
Preprint Aug 2026

EvolveNet: Collaborative Harness Evolution for Agent Self-Improvement

EvolveNet is introduced, a paradigm of collaborative harness evolution that moves experience extraction to the data and introduces scope-typed, evidence-guided program aggregation, which improves the shared harness in all five settings.

Jun Nie, Yong-Gang Zhang, Qi Cai et al. · 2 citations
Jul 2026

Zero2Skill: Bootstrapping Robot Skills through Autonomous Data Collection, Training, and Deployment

Zero2Skill is presented, a human-robot symbiotic agentic system in which corrections are retained and reused across rounds, and policies fine-tuned on Zero2Skill data match teleoperation-trained policy success at a fraction of collection human cost.

Boyuan Wang, Zhenyuan Zhang, Zhiqin Yang et al. · 1 citation
Jul 2026

DRNOISE: Benchmarking Deep Research Agents in Misleading Evidence Environments

DRNOISE, a 100-task benchmark for answer recovery under misleading evidence, is introduced, a 100-task benchmark for answer recovery under misleading evidence that requires active reconciliation of direct claims with record-level evidence.

Jun Nie, Zhiqin Yang, Zhenheng Tang et al. · 2 citations
Jul 2026

A Control Theory of Predictability in Latent World Models

It is proved that the planner's suboptimality is bounded by twice this discrepancy between the predicted and the true plan-cost at the plan the planner commits to, whereas the data-averaged prediction error neither bounds nor tracks it.

Hanzhe You, Yonggang Zhang, Maohao Ran et al. · 2 citations
Jul 2026

TTHE: Test-Time Harness Evolution

Test-Time Harness Evolution is introduced, which treats the executable harness as the state of test-time adaptation for LLM agents as evolution over executable control programs and identifies execution-derived proxy reliability as a central challenge for robust unsupervised agent improvement.

Jun Nie, Yonggang Zhang, Jun Song et al. · 3 citations

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