The specification defines three knowledge types for extraction: axiom for stable architectural facts, derived for conclusions inferred from implementation, and prescribed for design decisions and standards so that extracted knowledge can be categorized consistently.

**Knowledge types:**

— PYRANA_Internal_Knowledge_Graph_Specification.md

`axiom` — Architectural facts that are stable (e.g., "PYRANA uses Temporal for workflow orchestration")

— PYRANA_Internal_Knowledge_Graph_Specification.md

`derived` — Conclusions drawn from implementation (e.g., "The 3-strategy KAG retrieval pipeline provides fallback resilience when template queries return no results")

— PYRANA_Internal_Knowledge_Graph_Specification.md

`prescribed` — Design decisions and standards (e.g., "All tools must use the @tool() decorator with appropriate flags")

— PYRANA_Internal_Knowledge_Graph_Specification.md