diff --git a/tools/adaptive-isogrid/src/brain/profile_assembly.py b/tools/adaptive-isogrid/src/brain/profile_assembly.py
index f3de64da..292c94c5 100644
--- a/tools/adaptive-isogrid/src/brain/profile_assembly.py
+++ b/tools/adaptive-isogrid/src/brain/profile_assembly.py
@@ -88,13 +88,26 @@ def profile_to_json(ribbed_plate, pockets, geometry, params):
     else:
         outer = [list(p) for p in outer]
 
-    # Structured pocket data (lines + arcs)
+    # Structured pocket data (lines + arcs) — only include pockets fully inside boundary
+    plate = Polygon(outer)
     pocket_data = []
+    skipped = 0
     for p in pockets:
+        # Use polyline to check containment
+        polyline = p.get('polyline', [])
+        if polyline:
+            pocket_poly = Polygon(polyline)
+            if pocket_poly.is_valid and not pocket_poly.is_empty:
+                if not plate.contains(pocket_poly):
+                    skipped += 1
+                    continue
         pocket_data.append({
             'lines': p['lines'],
             'arcs': p['arcs'],
         })
+    if skipped > 0:
+        import sys
+        print(f"[profile_assembly] Skipped {skipped} pockets outside boundary", file=sys.stderr)
 
     # Hole data for NX (circles)
     hole_data = []
diff --git a/tools/adaptive-isogrid/test_data/rib_profile_sandbox_1.json b/tools/adaptive-isogrid/test_data/rib_profile_sandbox_1.json
index 80bc9a8a..c1dfc592 100644
--- a/tools/adaptive-isogrid/test_data/rib_profile_sandbox_1.json
+++ b/tools/adaptive-isogrid/test_data/rib_profile_sandbox_1.json
@@ -4821,93 +4821,6 @@
         }
       ]
     },
-    {
-      "lines": [
-        [
-          [
-            137.46390326476583,
-            -6.926432436063079
-          ],
-          [
-            131.05370092972248,
-            -15.73755838552485
-          ]
-        ],
-        [
-          [
-            132.8437974875087,
-            -24.427347047759888
-          ],
-          [
-            144.4719176935919,
-            -31.327076990816487
-          ]
-        ],
-        [
-          [
-            153.2278507027968,
-            -24.275921959753173
-          ],
-          [
-            148.00993283175694,
-            -8.565066067234806
-          ]
-        ]
-      ],
-      "arcs": [
-        {
-          "tangent_start": [
-            148.00993283175694,
-            -8.565066067234806
-          ],
-          "tangent_end": [
-            137.46390326476583,
-            -6.926432436063079
-          ],
-          "center": [
-            142.3157668424484,
-            -10.456222773116707
-          ],
-          "radius": 6.0,
-          "start_angle": 0.320659785970062,
-          "end_angle": 2.5126397041359354
-        },
-        {
-          "tangent_start": [
-            131.05370092972248,
-            -15.73755838552485
-          ],
-          "tangent_end": [
-            132.8437974875087,
-            -24.427347047759888
-          ],
-          "center": [
-            135.90556450740507,
-            -19.26734872257848
-          ],
-          "radius": 6.0,
-          "start_angle": 2.5126397041359376,
-          "end_angle": -2.1063235281199986
-        },
-        {
-          "tangent_start": [
-            144.4719176935919,
-            -31.327076990816487
-          ],
-          "tangent_end": [
-            153.2278507027968,
-            -24.275921959753173
-          ],
-          "center": [
-            147.53368471348827,
-            -26.167078665635074
-          ],
-          "radius": 6.0,
-          "start_angle": -2.106323528119998,
-          "end_angle": 0.3206597859700635
-        }
-      ]
-    },
     {
       "lines": [
         [