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20242026
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7 papers · 1 filter

cs.CL2026

OpenSkillRisk: Benchmarking Agent Safety When Using Real-World Risky Third-Party Skills

Qiyuan Liu, Tingfeng Hui, Kun Zhan +2

LLM-based agents leverage third-party skills to extend their capabilities in open-world scenarios. However, third-party skills can introduce extra security vulnerabilities, as seem…

cs.CL2026

Beyond Ideal Instruction: A Comprehensive Framework for Evaluating LLMs in Realistic Interactions

Xuan Yang, Hao Xu, Tingfeng Hui +4

Despite great advances in tool-use capabilities of large language models (LLMs), existing evaluation benchmarks struggle to fully align with real-world scenarios. Such benchmarks m…

cs.CL2026

STT-Arena: A More Realistic Environment for Tool-Using with Spatio-Temporal Dynamics

Tingfeng Hui, Hao Xu, Pengyu Zhu +5

Large language models (LLMs) deployed in real-world agentic applications must be capable of replanning and adapting when mid-task disruptions invalidate their prior decisions. Exis…

cs.AI2026

EnvSimBench: A Benchmark for Evaluating and Improving LLM-Based Environment Simulation

Yi Liu, TingFeng Hui, Wei Zhang +4

Scalable AI agents training relies on interactive environments that faithfully simulate the consequences of agent actions. Manually crafted environments are expensive to build, bri…

cs.AI2026

UniACE: A Unified Framework for Evaluating LLM Agentic Capabilities

Pengyu Zhu, Lijun Li, Yaxing Lyu +8

Agent benchmarks are increasingly used to compare large language models (LLMs) across domains, yet a reported score reflects a complete model--harness--environment configuration ra…

cs.LG2026

LongAct: Harnessing Intrinsic Activation Patterns for Long-Context Reinforcement Learning

Bowen Ping, Zijun Chen, Tingfeng Hui +4

Reinforcement Learning (RL) has emerged as a critical driver for enhancing the reasoning capabilities of Large Language Models (LLMs). While recent advancements have focused on rew…

cs.CL2026

LongR: Unleashing Long-Context Reasoning via Reinforcement Learning with Dense Utility Rewards

Qize Yu, Bowen Ping, Zijun Chen +6

Reinforcement Learning (RL) has emerged as a key driver for LLM reasoning. This capability is equally pivotal in long-context scenarios---such as long-dialogue understanding and st…