HarnessAgent: Scaling Automatic Fuzzing Harness Construction with Tool-Augmented LLM Pipelines
HarnessAgent is a tool-augmented agent framework that automatically builds complex test harnesses for program fuzzing across hundreds of open-source targets. It solves existing problems by using rule-based error triage, a hybrid tool pool for finding code symbols, and an enhanced validation pipeline to ensure the generated tests are structurally correct and robust.