Rank 0 CXUs are defined as context units that are always included so that the most essential foundational knowledge is guaranteed to appear in retrieval.

**Rank 0 CXUs (always included):**

— PYRANA_Internal_Knowledge_Graph_Specification.md

always included

— PYRANA_Internal_Knowledge_Graph_Specification.md

The UNIVERSAL set is always in scope for every query.

— PYRANA_Internal_Knowledge_Graph_Specification.md