@@ -73,6 +73,9 @@ jobs:
       - name: Every gallery still is gated by gallery_framing
         run: python3 tests/check_render_gates.py
 
+      - name: Showcase witness callouts match the README budgets
+        run: python3 tests/check_witnesses.py
+
       - name: Showcase helper drift (warn-only report)
         run: python3 tests/check_helper_drift.py
 
 
@@ -53,7 +53,7 @@ <h1>Crate Stack</h1>
       <img src="../assets/crate-stack-hero.webp" alt="Three grained wooden shipping crates stacked, each turned slightly differently, with nailed iron corner straps." width="1280" height="720" fetchpriority="high" />
     </button>
     <p class="zoom-hint">Rendered headless by the showcase piece itself. Select it to enlarge.</p>
-    <div class="callout"><span class="tag">witnesses</span> Recomputed: 4380 tris, two materials with 216 iron and 2436 timber faces, UVs in 0..1 with zero AABB overlap, outer AABB 0.658×0.524×0.704 m, zmin 0, hygiene 0 including zero coplanar disjoint pairs, three ground runners at z=0, both crate-to-crate seats overlapping, each crate&#x27;s own footprint 0.585×0.425 m measured in its own frame, yaw spread 0.026 rad and plank spread 2.05 mm across instances, LOD ratios in band, convex collider 202 tris, non-empty glTF. --float-stack exits 18 on the seat; --same-seed exits 20 on per-instance variation.</div>
+    <div class="callout"><span class="tag">witnesses</span> Recomputed: 6060 tris, two materials with 1344 iron and 2418 timber faces, UVs in 0..1 with zero AABB overlap, outer AABB 0.658×0.524×0.704 m, zmin 0, hygiene 0 including zero coplanar disjoint pairs, three ground runners at z=0, both crate-to-crate seats overlapping, each crate&#x27;s own footprint 0.588×0.428 m measured in its own frame, yaw spread 0.026 rad and plank spread 2.05 mm across instances, LOD ratios in band, convex collider 230 tris, non-empty glTF. --float-stack exits 18 on the seat; --same-seed exits 20 on per-instance variation.</div>
     <p class="taglist"><span class="tag">category</span> <a href="../#k=showcase&amp;c=village">Village</a></p>
     <p class="taglist"><span class="tag">tags</span> <a href="../#tag=mesh">mesh</a> <a href="../#tag=export">export</a> <a href="../#tag=showcase">showcase</a></p>
     <div class="runline">
 
@@ -53,7 +53,7 @@ <h1>Hand Pump</h1>
       <img src="../assets/hand-pump-hero.webp" alt="A green-enamelled cast-iron village pump with a fluted barrel, ball finial and counterweighted handle on a wooden plinth, a hooped bucket under its spout." width="1280" height="720" fetchpriority="high" />
     </button>
     <p class="zoom-hint">Rendered headless by the showcase piece itself. Select it to enlarge.</p>
-    <div class="callout"><span class="tag">witnesses</span> Recomputed: 1064 tris, two materials with 564 metal and 144 wood faces, UVs in 0..1 with zero AABB overlap, outer AABB 0.610×0.382×1.052 m, grounded zmin, spout-to-column gap 2.7 mm, flange-to-plinth gap 6.0 mm, column radius 62 mm, LOD ratios in band, convex collider 114 tris, hygiene all zero, non-empty glTF. --skip-decimate exits 9; --stray-vert 15; --lift-z 16; --float-spout 17; --float-flange 18; --skinny-col 19.</div>
+    <div class="callout"><span class="tag">witnesses</span> Recomputed: 2412 tris, two materials with 1134 metal and 332 wood faces, UVs in 0..1 with zero AABB overlap, outer AABB 0.610×0.521×1.055 m, grounded zmin, spout-to-column gap 2.4 mm, flange-to-plinth gap 6.0 mm, column radius 68 mm, LOD ratios in band, convex collider 205 tris, hygiene all zero, non-empty glTF. --skip-decimate exits 9; --stray-vert 15; --lift-z 16; --float-spout 17; --float-flange 18; --skinny-col 19.</div>
     <p class="taglist"><span class="tag">category</span> <a href="../#k=showcase&amp;c=village">Village</a></p>
     <p class="taglist"><span class="tag">tags</span> <a href="../#tag=mesh">mesh</a> <a href="../#tag=export">export</a> <a href="../#tag=showcase">showcase</a></p>
     <div class="runline">
 
@@ -53,7 +53,7 @@ <h1>Hitching Post</h1>
       <img src="../assets/hitching-post-hero.webp" alt="A tall wooden hitching post with a pointed cap, a cross-rail on two knee braces with iron end caps and two hung rings, iron bands, and a horseshoe nailed to its face." width="1280" height="720" fetchpriority="high" />
     </button>
     <p class="zoom-hint">Rendered headless by the showcase piece itself. Select it to enlarge.</p>
-    <div class="callout"><span class="tag">witnesses</span> Recomputed: 1852 tris, two materials with 114 wood and 828 metal faces, UVs in 0..1 with zero AABB overlap, outer AABB 0.500×0.149×1.246 m, zmin 0, hygiene and coplanar pairs 0, post seated at z 0.010, ring centerline error 0, bands 6.5 mm proud of the post, horseshoe biting 1.5 mm and 7.5 mm proud, LOD ratios in band, convex collider 80 tris, non-empty glTF. --skip-decimate exits 9; --stray-vert and --twin-sole exit 15; --lift-z exits 16; --clip-ring, --sunk-bands and --float-horseshoe exit 18; --short-post exits 19.</div>
+    <div class="callout"><span class="tag">witnesses</span> Recomputed: 2156 tris, two materials with 222 wood and 880 metal faces, UVs in 0..1 with zero AABB overlap, outer AABB 0.506×0.149×1.246 m, zmin 0, hygiene and coplanar pairs 0, post seated at z 0.010, ring centerline error 0, bands 6.5 mm proud of the post, horseshoe biting 1.5 mm and 7.5 mm proud, LOD ratios in band, convex collider 72 tris, non-empty glTF. --skip-decimate exits 9; --stray-vert and --twin-sole exit 15; --lift-z exits 16; --clip-ring, --sunk-bands and --float-horseshoe exit 18; --short-post exits 19.</div>
     <p class="taglist"><span class="tag">category</span> <a href="../#k=showcase&amp;c=village">Village</a></p>
     <p class="taglist"><span class="tag">tags</span> <a href="../#tag=mesh">mesh</a> <a href="../#tag=export">export</a> <a href="../#tag=showcase">showcase</a></p>
     <div class="runline">