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Author

Jingheng Xu

9 papers indexed here

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#artificial intelligence Preprint Sep 2026

Beyond Skill Evolution: Self-Evolving Context Management Policies for Long-Horizon Agent Harnesses

ContextEvo, a framework that learns a context policy from long-horizon trajectories and reconstructs the model-visible context at key decision points, identifies context-related failures, and applies targeted policy updates, is introduced.

Wei-Yuan Li, Jing-Heng Xu, Ai-Li Chen et al. · 0 citations
#artificial intelligence Preprint Aug 2026

Policy-Backed Selective Regeneration under Tainted Inter-Agent Communication

This work introduces Executable Semantic Commitments with Clean-Room Recovery (ESC-CR), a policy-backed framework for secure inter-agent code generation and recovery that preserves evidence-backed claims while suppressing unauthorized releases under matched computational budgets.

Jing-Heng Xu, Long-Ze Fan, Ze-Yuan Wang et al. · 0 citations
#artificial intelligence Preprint Sep 2026

EvoRS: On-Policy Self-Evolution of Reward Systems for Open-Ended Reinforcement Learning

EvoRS is introduced, a self-evolving RL framework that evolves the reward system from on-policy experience, representing it as an executable Reward-DAG, and is updated from on-policy rollouts and reward traces to maintain train-time reliability.

Wei-Yuan Li, Ai-Li Chen, Xin-Tao Wang et al. · 1 citation
Preprint Aug 2026

Convergent Detour Hijacking: Task-Preserving Resource Amplification in Skill-Based LLM Agents

Convergent Detour Hijacking is introduced, a text-only, runtime-independent attack that couples selection manipulation, malicious skill instructions, and tool-chain resource amplification largely separately and evaluates it across multiple LLM backends and 491 held-out tasks under single-task and multi-turn conditions.

Junliang Liu, Ruo-Yu Li, Wenxin Tang et al. · 1 citation
Preprint Aug 2026

Beyond Single-Use Tokens: Durable Authorization State for Replay-Resistant LLM Agent Actions

CapLease is introduced, an authorization-consumption layer that follows proposal- and authority-level defenses, binds an authenticated user confirmation to a canonical action, and enforces transactional Issue-Prepare-Commit transitions, which identifies durable authorization state, rather than token representation alon...

Jingheng Xu, Long-Ze Fan, Zeyuan Wang et al. · 2 citations
Preprint Aug 2026

MNC: Scope-Bound Semantic Declassification for Private LLM-Agent Communication

Minimum-Necessary Communication is introduced, a typed semantic-declassification protocol that selects a task-sufficient disclosure from an application-authored candidate family and binds it to explicit recipient, purpose, forwarding, lifetime, logging, and memory scopes.

Jingheng Xu, Longze Fan, Zeyuan Wang et al. · 0 citations
Review Aug 2026

SWE-Bench ProMax: Benchmarking Agents on Large-Scale Multilingual Code Refactoring

SWE-Bench ProMax is introduced, an expert-curated, multilingual code refactoring benchmark of 170 instances drawn from real commits across seven programming languages, which presents a meaningful and unsaturated challenge for current AI coding agents.

Yu-Ling Shi, Jing-Heng Xu, Kelin Fu et al. · 6 citations
Preprint Aug 2026

Verify Smarter, Evolve Further: Efficient Harness Evolution through Behavior-Aware Verification

HarnessLens is introduced, a budget-aware framework for automated harness evolution that jointly explores the task space and user-configurable components, derives candidate modifications from execution trajectories, and selectively verifies each candidate on behavior-relevant tasks using an attributable-evidence gate.

Jing-Heng Xu, Yi-Kai Zhang, Aiden Chen et al. · 7 citations · ⚡1

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