fix(gallery): render inline code in callouts; add the asset-sheet gate to the example prompt

docs/gallery/index.html

@@ -349,7 +349,7 @@ <h2><a class="stretch" href="color-attribute-wheel/">Color Attribute Wheel</a></
           <h2><a class="stretch" href="parent-inverse-orrery/">Parent Inverse Orrery</a></h2>
           <p class="slug">parent-inverse-orrery</p>
           <p class="teaches">Data-API parenting for a brass orrery — the keep-world idiom (child.parent = pivot; child.matrix_parent_inverse = pivot.matrix_world.inverted()) carrying arms, planets, and a two-level moon through spinning pivots.</p>
-          <p class="witnesses"><span class="tag">witnesses</span> Bare `.parent =` really does teleport the child; the idiom restores world position exactly; matrix_world stays stale until view_layer.update(); every orbit lands on its closed form.</p>
+          <p class="witnesses"><span class="tag">witnesses</span> Bare <code>.parent =</code> really does teleport the child; the idiom restores world position exactly; matrix_world stays stale until view_layer.update(); every orbit lands on its closed form.</p>
           <span class="card-link" aria-hidden="true">View example &rarr;</span>
         </div>
       </article>

docs/gallery/parent-inverse-orrery/index.html

@@ -53,7 +53,7 @@ <h1>Parent Inverse Orrery</h1>
       <img src="../assets/parent-inverse-orrery-hero.webp" alt="A brass orrery on a turned walnut base: a glowing gold sun atop the column, mottled blue, green and orange planets on riser posts, orbit rings beneath them, and a silver moon." width="1280" height="720" fetchpriority="high" />
     </button>
     <p class="zoom-hint">Rendered headless by the example itself. Select it to enlarge.</p>
-    <div class="callout"><span class="tag">witnesses</span> Bare `.parent =` really does teleport the child; the idiom restores world position exactly; matrix_world stays stale until view_layer.update(); every orbit lands on its closed form.</div>
+    <div class="callout"><span class="tag">witnesses</span> Bare <code>.parent =</code> really does teleport the child; the idiom restores world position exactly; matrix_world stays stale until view_layer.update(); every orbit lands on its closed form.</div>
     <p class="taglist"><span class="tag">tags</span> <a href="../#tag=objects">objects</a> <a href="../#tag=transforms">transforms</a></p>
     <div class="runline">
       <pre id="runCmd">blender --background --python examples/parent-inverse-orrery/parent_inverse_orrery.py --</pre>

docs/new-example-prompt.md

@@ -148,6 +148,20 @@ is not acceptable evidence. When a new example outclasses a member, update the
 pinned set in `CLAUDE.md`, its canonical home. One successful render command is not
 proof that the image is good, and neither is the second.
 
+Asset-sheet gate (required when the subject is a game asset: a prop, kit piece or
+vehicle the example ships as a model): render the hero asset alone (neutral
+three-quarter view, plain studio light, no staging, labels or comparison props)
+beside the pinned asset-quality reference set, whose canonical membership is also in
+`CLAUDE.md` § Quality Gates for Example Runs, with
+`python scripts/asset_sheet.py --blender PATH NAME`. Add the entry's row to that
+script's `SELECT` table first (`tests/check_asset_sheet_select.py` enforces it for
+showcase pieces). Commit the composite under `docs/gallery/asset-sheets/`, link it in
+the PR body, and report a verdict. The asset ships only if it is not identifiable as
+the least-designed object in the lineup: a strong scene can carry a weak model, and
+this gate removes the scene. Its measurable floors (naming, material variation, edge
+treatment) live in `examples/gallery_asset_quality.py`, called on the render path
+(exit 11 on violation).
+
 After implementation and local verification:
 
 1. Review the complete diff and remove accidental churn or temporary files. Stage

scripts/build_gallery.py

@@ -136,6 +136,20 @@ def check_alts(entries: list) -> None:
         if len(alt) > ALT_MAX:
             raise SystemExit(f"gallery entry {e['name']!r} alt is {len(alt)} chars "
                              f"(max {ALT_MAX}); describe the still in one sentence")
+        if "`" in alt:
+            # An attribute cannot carry <code>, so a backtick would be read
+            # aloud and shown literally; teaches/witnessesFix render it (#368).
+            raise SystemExit(f"gallery entry {e['name']!r} alt contains a backtick; "
+                             "alt text is plain prose")
+
+
+def inline_code(text: str) -> str:
+    """Escape text and render its `backtick` spans as <code>, as the landing
+    page does. Unbalanced backticks stay literal."""
+    parts = html.escape(text).split("`")
+    if len(parts) % 2 == 0:
+        return "`".join(parts)
+    return "".join(f"<code>{p}</code>" if i % 2 else p for i, p in enumerate(parts))
 
 
 def check_categories(entries: list) -> None:
@@ -1446,15 +1460,15 @@ def build_detail(ex: dict, entries: list, *, base: str, repo_root_url: str, site
                  f'<li aria-current="page">{html.escape(name)}</li></ol></nav>')
     parts.append(f'    <h1>{html.escape(display_title(ex))}</h1>')
     parts.append(f'    <p class="slug">{html.escape(ex["dir"])}/</p>')
-    parts.append(f'    <p>{html.escape(ex["teaches"])}</p>')
+    parts.append(f'    <p>{inline_code(ex["teaches"])}</p>')
     parts.append("  </header>")
     parts.append('  <main id="main">')
     parts.append(pager_html(prev, nxt, idx + 1, len(peers), noun))
     parts.append(f'    <button class="detail-hero" id="heroZoom" type="button" aria-label="View full size: {html.escape(ex["alt"], quote=True)}">')
     parts.append(f'      <img src="../assets/{html.escape(hero_file)}" alt="{html.escape(ex["alt"], quote=True)}" width="1280" height="720" fetchpriority="high" />')
     parts.append("    </button>")
     parts.append(f'    <p class="zoom-hint">Rendered headless by the {noun} itself. Select it to enlarge.</p>')
-    parts.append(f'    <div class="callout"><span class="tag">witnesses</span> {html.escape(ex["witnessesFix"])}</div>')
+    parts.append(f'    <div class="callout"><span class="tag">witnesses</span> {inline_code(ex["witnessesFix"])}</div>')
     cat = ex.get("category")
     if cat:
         parts.append(f'    <p class="taglist"><span class="tag">category</span> '
@@ -1523,7 +1537,7 @@ def build_detail(ex: dict, entries: list, *, base: str, repo_root_url: str, site
                 .replace("__SIZES__", MINI_SIZES)
                 .replace("__ALT__", html.escape(r["alt"], quote=True))
                 .replace("__TITLE__", html.escape(display_title(r)))
-                .replace("__TEACHES__", html.escape(r["teaches"])))
+                .replace("__TEACHES__", inline_code(r["teaches"])))
         parts.append("      </div>")
         parts.append("    </section>")
 
@@ -1673,8 +1687,8 @@ def build_index(data: dict, *, base: str, repo_root_url: str, site: str, css_v:
             .replace("__CATATTR__", f' data-category="{html.escape(ex["category"], quote=True)}"'
                      if ex.get("category") else "")
             .replace("__KIND__", kind_noun(ex))
-            .replace("__TEACHES__", html.escape(ex["teaches"]))
-            .replace("__WITNESSES__", html.escape(ex["witnessesFix"]))
+            .replace("__TEACHES__", inline_code(ex["teaches"]))
+            .replace("__WITNESSES__", inline_code(ex["witnessesFix"]))
         )
 
     content = (