Most LLM memory systems store facts. Tenure stores what to do with them. Every belief carries a why_it_matters field that converts observations into instructions the model acts on directly, no additional inference required. Precision retrieval over similarity search. Fully local, encrypted at rest, nothing leaves localhost. Every belief is visible, editable, and correctable, the model isn't building a hidden profile. Retrieval claims are documented in a reproducible arXiv paper.