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Chetan Bansal

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#artificial intelligence Preprint Sep 2026

FOCUS: Training-Free Decision-Preserving Context Compression for LLM Agents

This paper recast context compression as a causal decision preservation problem over discrete interaction units and introduces FOCUS, a training-free context compression framework that operates entirely at test time that requires no offline data collection or fine-tuning.

Shantanu Dixit, Anson Bastos, Xu-Chao Zhang et al. · 0 citations
#machine learning Preprint Sep 2026

PSD: Pseudo Self-Distillation of Memory Representation Capabilities for LLM Agents

Pseudo Self-Distillation is presented, a framework that enables small language models to construct hierarchical memory representations by distilling behavior from a strong black-box oracle through a multi-stage training pipeline, with off-policy PSD achieving the strongest results across most conditions.

Pirzada Suhail, Meng-Lin Xia, Xu-Chao Zhang et al. · 0 citations
#machine learning Preprint Sep 2026

When EOS Tokens Disagree: Understanding Length Inflation in On-Policy Distillation

We study length inflation in on-policy distillation (OPD), where student responses can become excessively long and even exhaust the generation budget. We identify \emph{termination-token mismatch} between base students and post-trained teachers as an important source of this behavior. Across Qwen3, Llama, and Gemma, th...

Yu-Xiao Yang, Tian-Run Yu, Shang-Zhe Li et al. · 4 citations

AgentRx: Diagnosing AI Agent Failures from Execution Trajectories

To mitigate the human cost of failure attribution, AgentRx is presented, an automated diagnostic framework that pinpoints the critical failure step in a failed agent trajectory and improves step localization by 75% on average over prior work, while providing failure category attribution.

Shraddha Barke, Arnav Goyal, Alind Khare et al. · 42 citations · ⚡5
Book Open access Jul 2026

TSGen: Automated Troubleshooting Guide Generation

TSGen, an automated pipeline for generating high-quality, structured TSGs from historical incident reports using large language models (LLMs), consists of filtering and classifying incident data into diagnostically relevant categories and distilling core incidents to ensure diversity and generalizability.

Yi Xiao, Hongyu Zhang, Dr. I. I. Genkin et al. · 0 citations

WebXSkill: Skill Learning for Autonomous Web Agents

This work introduces WebXSkill, a framework that bridges a grounding gap with executable skills, each pairing a parameterized action program with step-level natural-language guidance, and finds that better skill deployment mode depends on a model's plan and execution capability.

Zhaoyang Wang, Qianhui Wu, Xuchao Zhang et al. · 17 citations
Jul 2026

DepRepair: LLM-Based Source-Code Repair for Dependency Breaking Changes

DepRepair is proposed, a single-call LLM approach that grounds repair in structured upstream evidence through three components: an evidence filter that distills relevant upstream changes, a usage locator that identifies affected consumer sites, and a subcategory-aware guide that tailors repairs to the breaking-change t...

Shenghao Yang, Bo Lu, Yao Liu et al. · 0 citations
Open access May 2026

A Resource-centric Analysis and Optimization of NoSQL Workloads using Distressed Resource Volume Metric

This work proposes and develops an open-source policy simulation framework, LoadStar, which forms a reusable benchmark pipeline for validating policies for resource-centric NoSQL workloads, and defines a resource optimization problem for placing Cosmos DB replicas onto VM nodes, and develops the Luna model for forecast...

Gunika Verma, V. AashutoshA, P. Srinivas et al. · 0 citations
Preprint Jul 2026

AgentTether: Graph-Guided Diagnosis and Runtime Intervention for Reliable LLM Agent Operation

Large language model (LLM) agents are increasingly used for multi-step, stateful tool-use tasks, yet production reliability remains limited. Unlike static software repair, agent repair must recover dynamic trajectories whose early decisions can propagate into later errors and external state changes. Existing automatic...

Chenyu Zhao, Shenglin Zhang, Wenwei Gu et al. · 2 citations

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