# PlannerForge: LLM Agents for Scenario-Based Testing of Motion Planners in Autonomous Driving > Source: > Published: 2026-09-10 11:00:26+00:00 Ensuring the safety of autonomous driving is a critical challenge. Scenario-based testing is a systematic process used to validate Autonomous Driving Systems (ADSs), but it remains a fragmented modular pipeline in which scenario generation, retrieval, modification, ADS execution, and results analysi