A software implementation of the Turing-Welchlan Bombe cryptanalytic machine that breaks Enigma ciphers by using Jev, a probabilistic AI model, to make judgement calls on probable phrases and plaintext candidates. The system rebuilds Bletchley Park's pipeline in code, includes a verified Enigma simulator with crib dragging and diagonal board, and demonstrates strong performance (AUC 0.9999) distinguishing correct decryptions from incorrect ones, outperforming traditional n-gram and XGBoost judges under distribution shift.
Libreta is an open-source tool that represents financial models as plain-text CSV and YAML files instead of spreadsheets, enabling AI agents to write models efficiently while allowing humans to review formulas and trace calculations through an interactive browser interface.