Audit runtime metadata route traces

docs/prompt-pool-routing-map.md

@@ -225,6 +225,11 @@ Each generated row stores `generation_trace.seed_axes` in `metadata_json`.
 Use it to verify whether an axis followed the main seed or a configured seed,
 and to compare the exact per-axis RNG seed used for the row.
 
+`tools/prompt_map_audit.py` includes a runtime metadata route check. It builds a
+representative single row and Insta/OF pair, verifies embedded
+`generation_trace` fields, and confirms Krea2, SDXL, and caption formatters
+consume metadata JSON instead of silently falling back to raw prompt text.
+
 ## Category Sources
 
 There are two category systems.