Author

Viet Nguyen

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Preprint Aug 2026

HxAgent: Iterative Agent Planning for End-to-End Web Application Testing

HxAgent is introduced, an iterative LLM-based planning agent with a proactive correction strategy that achieves 97.4% Exact-Match accuracy on MiniWoB++, comparable to the best baselines without human demonstrations and surpassing the recent WALT by 10.5%.

Tuong Nguyen, Duy Cao, Viet Nguyen et al. · 0 citations

Preprint Aug 2026

REST API Testing with Verified LLM-Inferred Dependencies and Response-Driven Refinement

APIPilot first derives candidate producer-consumer dependencies from OpenAPI specifications using structural heuristics and LLM-based semantic reasoning and validates them through concrete API executions before using them for test generation, outperforming both LLM-based and traditional REST API testing baselines.

Tuong Nguyen, Thanh Nguyen, Huy Nguyen et al. · 0 citations