Author

Ao-Yang Fang

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#natural language process... Preprint Oct 2026

SpecGuardBench: Can Coding Agents Construct Reliable Validation Harnesses from Natural Language Specifications?

As coding agents become more capable, tests remain the primary evidence for judging whether their code is correct. Yet passing available tests does not establish that an implementation satisfies its natural language specification. Reliable validation requires checks that faithfully capture the specification and scenari...

Zhiqing Zhong, Ming-Yu Chen, Ao-Yang Fang et al. · 0 citations

Review Aug 2026

Beyond Fault Localization: A Trajectory-Level Study of LLM Agents for Microservice Root Cause Analysis

DiagGuard is operationalized as DiagGuard, a two-stage defense-in-depth architecture in which grounding surveys available observations before localization and verification audits the diagnosis against them, showing that trajectory-level evaluation exposes limitations hidden by final-answer metrics and provides actionab...

Qisheng Lu, Ao-Yang Fang, Junjielong Xu et al. · 0 citations