diff --git a/json_to_cdsl/evidence_v2_to_cdsl.py b/json_to_cdsl/evidence_v2_to_cdsl.py
index 1012ad55..4efed0c8 100644
--- a/json_to_cdsl/evidence_v2_to_cdsl.py
+++ b/json_to_cdsl/evidence_v2_to_cdsl.py
@@ -414,7 +414,16 @@ def _analytic_profile(sketch: dict[str, Any]) -> dict[str, Any]:
             smaller, larger = sorted(drawable, key=lambda item: item["radius_mm"])
             return {"type": "annulus", "center": larger["center"], "inner_radius_mm": smaller["radius_mm"], "outer_radius_mm": larger["radius_mm"]}
     if drawable and all(item["type"] == "circle" for item in drawable):
-        return {"type": "circles", "items": [{"center": item["center"], "radius_mm": item["radius_mm"]} for item in drawable]}
+        # Multiple independent circles share the "extrude every closed loop" intent;
+        # emit them as analytic_contours (one outer contour per circle) so the
+        # generic runtime profile contract accepts the record.
+        return {
+            "type": "analytic_contours",
+            "contours": [
+                {"role": "outer", "closed": True, "segments": [item]}
+                for item in drawable
+            ],
+        }
 
     contours = _chain_segments(drawable)
     areas = [_contour_area(contour) for contour in contours]