Counterexamples.org Highlights Edge Cases in Type Systems

Counterexamples.org is a dedicated site for type‑system edge cases. It collects concrete examples that defy conventional type‑checking rules. Each entry explains the code snippet and the unexpected behavior it triggers. The repository serves educators and language designers seeking robust test cases. Contributors can submit new counterexamples for community review. The site emphasizes the importance of rigorous type‑system research. It helps identify gaps that could lead to runtime errors or security flaws. The resource aims to improve language safety by exposing hidden pitfalls.