feat(showcase): add garden-gate piece

A ledged-and-braced oak gate, 900 mm wide with a bowed top, hung on two
hook-and-band hinges (400 x 38 mm straps on 12 mm pins) between square
posts. It stands on sandstone flags and has a barrel bolt, a keeper
staple and a ring pull.

Pin-in-knuckle contact witness, measured off the finished mesh:
- each knuckle is coaxial with its pin (0.000 mm off, 0.3 mm tolerance)
  with 0.600 mm running clearance, and sits -0.50 mm on its hook;
- both pins are plumb on one shared hinge axis (0.000 mm off);
- the swing circle clears the latch post and keeper by 14.87 mm.

Budgets: 3320 tris, three materials (timber 370, iron 1534, ground 156
faces). The collider is four hulls, 344 tris. LOD ratios are 0.50 and
0.22. The grounded envelope is 1.56 x 0.56 x 1.245 m.

Falsifiers. Each one exits its own code on Blender 4.5.11 LTS, 5.1.2 and
5.2.1 LTS (.scratch binaries, 24 runs including the default). The
default run exits 0 on all three. Only the LOD tri counts differ between
versions, which is why LOD is checked as a ratio band.

  --skip-decimate   9   LOD1 ratio 1.0
  --stray-vert     15   one loose vert
  --lift-z         16   zmin 50 mm
  --offset-knuckle 17   knuckle 1.5 mm off its pin
  --lift-gate      18   knuckle 2.5 mm above the hook
  --tilt-pintle    19   pin top 3.96 mm off plumb
  --tight-post     20   0.89 mm swing clearance

Gates:
- Framing and asset quality pass on the hero render.
- Contact sheet: luma 0.229 (references 0.237-0.243) and stage are
  inside their bands.
- Saturation is 0.133, below the reference range of 0.153-0.237. This is
  accepted: the subject is silvered oak, black iron and sandstone, and it
  still reads at thumbnail size.
- Asset sheet: pass. The piece was re-posed so it reads as an open gate,
  and it is not the least-designed object in the reference lineup.

scripts/asset_sheet.py gains the GateLow SELECT row.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

Author: TMHSDigital

.cursor-plugin/plugin.json

@@ -213,6 +213,7 @@
     "showcase/bamboo-clump",
     "showcase/toboggan",
     "showcase/sundial",
-    "showcase/mine-cart"
+    "showcase/mine-cart",
+    "showcase/garden-gate"
   ]
 }

AGENTS.md

@@ -21,7 +21,7 @@ classifies it as a `cursor-plugin`. This is content the AI loads when the user
 asks Blender questions or works on Blender add-ons in Cursor or Claude Code.
 
 The content base is 16 skills, 9 rules, 3 templates, 27 snippets, 62
-examples, and 73 showcase pieces (counts are CI-enforced against README.md)
+examples, and 74 showcase pieces (counts are CI-enforced against README.md)
 and the manifest). The full inventory tables and per-item purposes live in
 `CLAUDE.md`. Example anatomy and authoring rules: copy `examples/bmesh-gear/`;
 showcase conventions: `showcase/README.md`. The render look is specified

CLAUDE.md

@@ -22,7 +22,7 @@ rules/<rule-name>.mdc          - Anti-pattern rules, 9 total
 templates/<template-name>/     - Starter projects, 3 total
 snippets/<snippet-name>.py     - Standalone code patterns, 27 total
 examples/<name>/               - Runnable smoke-gated examples, 62 total (+ gallery.json)
-showcase/<name>/               - Budget-conformance props, 73 pieces, each with a gallery `category` (sibling of examples/; see showcase/README.md § Categories)
+showcase/<name>/               - Budget-conformance props, 74 pieces, each with a gallery `category` (sibling of examples/; see showcase/README.md § Categories)
 scripts/build_gallery.py       - Regenerates docs/gallery/ from examples/gallery.json + showcase/gallery.json
 scripts/site/                  - Vendored landing-page build (Jinja2); tokens.css is the shared palette
 tests/check_site_links.py      - Internal link/anchor/alt gate over the built site (docs/)

README.md

@@ -18,7 +18,7 @@
 </p>
 
 <p align="center">
-  <strong>16 skills</strong> &nbsp;&bull;&nbsp; <strong>9 rules</strong> &nbsp;&bull;&nbsp; <strong>3 templates</strong> &nbsp;&bull;&nbsp; <strong>27 snippets</strong> &nbsp;&bull;&nbsp; <strong>62 examples</strong> &nbsp;&bull;&nbsp; <strong>73 showcase pieces</strong>
+  <strong>16 skills</strong> &nbsp;&bull;&nbsp; <strong>9 rules</strong> &nbsp;&bull;&nbsp; <strong>3 templates</strong> &nbsp;&bull;&nbsp; <strong>27 snippets</strong> &nbsp;&bull;&nbsp; <strong>62 examples</strong> &nbsp;&bull;&nbsp; <strong>74 showcase pieces</strong>
 </p>
 
 <p align="center">
@@ -37,7 +37,7 @@
 
 ## Overview
 
-This repository ships **16 skills, 9 rules, 3 templates, 27 snippets, 62 examples, and 73 showcase pieces** for Blender Python development targeting Blender 5.2 LTS (current stable) with Blender 4.5 LTS fallback support. Blender 5.1 is prior stable.
+This repository ships **16 skills, 9 rules, 3 templates, 27 snippets, 62 examples, and 74 showcase pieces** for Blender Python development targeting Blender 5.2 LTS (current stable) with Blender 4.5 LTS fallback support. Blender 5.1 is prior stable.
 
 The content is consumed by AI coding agents reading these files directly from a checkout — **there is no MCP server in this repository, and none is required**. Cursor applies `rules/*.mdc` automatically wherever their scope globs match and takes skills by name in chat; Claude Code reads `skills/` and `rules/` from the project workspace, or from this repo kept as a referenced checkout. Any agent that can read files in a workspace can use it the same way. There is no build step for the content — edit the Markdown and Python files directly.
 
@@ -106,7 +106,7 @@ per-script exit-code model, are in
 Budget-conformance props. Not examples. Conventions: [`showcase/README.md`](showcase/README.md).
 
 <details>
-<summary><strong>73 showcase pieces</strong> — click to expand the preview grid</summary>
+<summary><strong>74 showcase pieces</strong> — click to expand the preview grid</summary>
 
 <p align="center">
   <a href="showcase/shipping-crate/"><img src="showcase/shipping-crate/preview.webp" width="24%" alt="Shipping crate: a wooden slat crate stencilled PORT ROYAL and NO 17, with iron corner brackets and an end handle, on a dark studio floor, warm wedge on the back wall" /></a>
@@ -182,6 +182,7 @@ Budget-conformance props. Not examples. Conventions: [`showcase/README.md`](show
   <a href="showcase/toboggan/"><img src="showcase/toboggan/preview.webp" width="24%" alt="Toboggan: a wooden runner sled with steel-shod runners curling into front horns, a screwed seven-slat deck on posts, a red crossbar, and a twisted hemp pull rope ending in a wooden toggle, on a dark studio floor" /></a>
   <a href="showcase/sundial/"><img src="showcase/sundial/preview.webp" width="24%" alt="Sundial: a garden sundial with a stepped stone plinth, a tapered octagonal granite column and cap, and a bronze dial plate with hour lines, a Roman-numeral chapter ring and a triangular gnomon, on a dark studio floor" /></a>
   <a href="showcase/mine-cart/"><img src="showcase/mine-cart/preview.webp" width="24%" alt="Mine cart: a rust-streaked riveted red steel tub on oak sills, four flanged iron wheels resting on two polished rails spiked to sleepers in grey ballast, on a dark studio floor" /></a>
+  <a href="showcase/garden-gate/"><img src="showcase/garden-gate/preview.webp" width="24%" alt="Garden gate: a bow-topped gate of weathered oak boards standing ajar on black strap hinges between square posts on sandstone flags, on a dark studio floor" /></a>
 </p>
 
 [`shipping-crate`](showcase/shipping-crate/) — procedural crate through UVs, bake, LOD, collider, and Unity glTF, asserting recomputed budgets. Falsifier `--skip-decimate` exits 9.
@@ -318,6 +319,8 @@ Budget-conformance props. Not examples. Conventions: [`showcase/README.md`](show
 
 [`mine-cart`](showcase/mine-cart/) — procedural narrow-gauge mine cart on a rail segment, riveted tub on flanged wheels over 30 lb rails, sleepers and ballast, through the same pipeline; every tread seated on its railhead and every flange clear of it. Falsifiers `--skip-decimate` exits 9, `--stray-vert` exits 15, `--lift-z` exits 16, `--float-wheel` exits 18, `--skew-axle` exits 19, `--wide-gauge` exits 20.
 
+[`garden-gate`](showcase/garden-gate/) — procedural ledged-and-braced garden gate on hook-and-band hinges through the same pipeline; every knuckle measured coaxial on its pin, both pins on one plumb axis, and the swing circle clearing the latch post. Falsifiers `--skip-decimate` exits 9, `--offset-knuckle` exits 17, `--lift-gate` exits 18, `--tilt-pintle` exits 19, `--tight-post` exits 20.
+
 </details>
 
 ## Examples

ROADMAP.md

@@ -144,7 +144,7 @@ Not committed; target list for the next content version. (v0.3.0 shipped the smo
 - Library rolling ladder (hooked top rollers riding a round rail, raked stiles, treads, floor wheels) as a game-prop showcase piece — the unbuilt half of the item above: a hook riding a round rail is a curved-on-curved contact that neither the trolley's flat backrests nor the yoke's hung ring exercise
 - Ox cart tongue or plough beam that hitches to the yoke's ring as a game-prop showcase piece — a hitch is a ring-on-hook contact the yoke's hung ring only tests against a fixed bar
 - ~~Mine cart on a rail segment as a game-prop showcase piece~~ **SHIPPED** as `showcase/mine-cart/` — riveted steel tub on four flanged wheels over 30 lb rails, spiked sleepers and ballast; every tread seated within −1.5..+0.5 mm of its railhead (`--float-wheel` exits 18), axles square (`--skew-axle` exits 19), flanges 3–10 mm clear of the railheads (`--wide-gauge` exits 20); `--skip-decimate` exits 9 on the LOD1 ratio band
-- Hinged garden gate as a game-prop showcase piece — strap hinges whose knuckles sit coaxial on the post pintles: knuckle axis-to-pintle axis distance within a band and the swing arc clearing the latch post, a pin-in-knuckle contact no existing piece tests
+- ~~Hinged garden gate as a game-prop showcase piece~~ **SHIPPED** as `showcase/garden-gate/` — ledged-and-braced oak gate on hook-and-band hinges: knuckle axis on pin axis (0.000 mm, 0.600 mm clearance), knuckle seat on the hook, both pins plumb on one axis, swing circle clearing the latch post by 14.87 mm; `--skip-decimate` exits 9 on the LOD1 ratio band, `--offset-knuckle` 17, `--lift-gate` 18, `--tilt-pintle` 19, `--tight-post` 20
 - Mooring bollard with a coiled rope as a game-prop showcase piece — rope turns laid as stacked helices around the barrel: each turn resting on the one below (not interpenetrating, not floating), measured turn-to-turn off the mesh
 - Ship's wheel as a game-prop showcase piece — spokes and handles by exact radial repetition: equal angular spacing, every spoke end seated in the rim, hub/rim concentric, handles on the computed radius
 - Sawhorse pair carrying a plank as a game-prop showcase piece — splayed legs and a board spanning two supports: the plank's underside rests on both saddles within a band (a two-support span, not a single seat) and every foot lands on the floor

docs/gallery/anvil/index.html

@@ -45,7 +45,7 @@ <h1>Anvil</h1>
     <p>A procedural blacksmith anvil on a timber stump through UVs, bake, LOD, collider, and Unity glTF, asserting recomputed budgets rather than an API contract.</p>
   </header>
   <main id="main">
-    <nav class="pager" aria-label="Showcase pieces"><a rel="prev" href="../wheelbarrow/" aria-label="Previous showcase piece: wheelbarrow"><span aria-hidden="true">&larr;</span> wheelbarrow</a><span class="pager-pos hud">14 of 73 showcase pieces<span class="pager-keys"> &middot; <kbd>&larr;</kbd><kbd>&rarr;</kbd></span></span><a rel="next" href="../water-trough/" aria-label="Next showcase piece: water-trough">water-trough <span aria-hidden="true">&rarr;</span></a></nav>
+    <nav class="pager" aria-label="Showcase pieces"><a rel="prev" href="../wheelbarrow/" aria-label="Previous showcase piece: wheelbarrow"><span aria-hidden="true">&larr;</span> wheelbarrow</a><span class="pager-pos hud">14 of 74 showcase pieces<span class="pager-keys"> &middot; <kbd>&larr;</kbd><kbd>&rarr;</kbd></span></span><a rel="next" href="../water-trough/" aria-label="Next showcase piece: water-trough">water-trough <span aria-hidden="true">&rarr;</span></a></nav>
     <button class="detail-hero" id="heroZoom" type="button" aria-label="View full size: A London-pattern forged anvil with a thick face block, tapered horn and broad flared foot on a hooped oak stand, a cross-peen hammer on the floor beside it.">
       <img src="../assets/anvil-hero.webp" alt="A London-pattern forged anvil with a thick face block, tapered horn and broad flared foot on a hooped oak stand, a cross-peen hammer on the floor beside it." width="1280" height="720" fetchpriority="high" />
     </button>
@@ -3571,7 +3571,7 @@ <h3><a class="stretch" href="../wooden-barrel/">Wooden Barrel</a></h3>
         </article>
       </div>
     </section>
-    <nav class="pager pager-foot" aria-label="Showcase pieces"><a rel="prev" href="../wheelbarrow/" aria-label="Previous showcase piece: wheelbarrow"><span aria-hidden="true">&larr;</span> wheelbarrow</a><span class="pager-pos hud">14 of 73 showcase pieces</span><a rel="next" href="../water-trough/" aria-label="Next showcase piece: water-trough">water-trough <span aria-hidden="true">&rarr;</span></a></nav>
+    <nav class="pager pager-foot" aria-label="Showcase pieces"><a rel="prev" href="../wheelbarrow/" aria-label="Previous showcase piece: wheelbarrow"><span aria-hidden="true">&larr;</span> wheelbarrow</a><span class="pager-pos hud">14 of 74 showcase pieces</span><a rel="next" href="../water-trough/" aria-label="Next showcase piece: water-trough">water-trough <span aria-hidden="true">&rarr;</span></a></nav>
   </main>
   <dialog class="lightbox" id="lightbox" aria-label="Full-size render">
     <div class="lightbox-bar"><button class="lightbox-close" id="lightboxNative" type="button" aria-pressed="false">Actual size</button><button class="lightbox-close" id="lightboxClose" type="button" autofocus>Close</button></div>

docs/gallery/apothecary-shelf/index.html

@@ -45,7 +45,7 @@ <h1>Apothecary Shelf</h1>
     <p>A procedural apothecary shelf — housed shelves, gallery rails, a drawer bank and an arched crest, stocked with fifteen lathed bottles, flasks and glazed jars, each corked or lidded and labelled — carried through UVs, bake, LOD, convex collider, and Unity glTF, asserting recomputed budgets rather than an API contract.</p>
   </header>
   <main id="main">
-    <nav class="pager" aria-label="Showcase pieces"><a rel="prev" href="../brazier/" aria-label="Previous showcase piece: brazier"><span aria-hidden="true">&larr;</span> brazier</a><span class="pager-pos hud">32 of 73 showcase pieces<span class="pager-keys"> &middot; <kbd>&larr;</kbd><kbd>&rarr;</kbd></span></span><a rel="next" href="../wooden-yoke/" aria-label="Next showcase piece: wooden-yoke">wooden-yoke <span aria-hidden="true">&rarr;</span></a></nav>
+    <nav class="pager" aria-label="Showcase pieces"><a rel="prev" href="../brazier/" aria-label="Previous showcase piece: brazier"><span aria-hidden="true">&larr;</span> brazier</a><span class="pager-pos hud">32 of 74 showcase pieces<span class="pager-keys"> &middot; <kbd>&larr;</kbd><kbd>&rarr;</kbd></span></span><a rel="next" href="../wooden-yoke/" aria-label="Next showcase piece: wooden-yoke">wooden-yoke <span aria-hidden="true">&rarr;</span></a></nav>
     <button class="detail-hero" id="heroZoom" type="button" aria-label="View full size: A stained wooden shelf with an arched crest, gallery rails and three brass-knobbed drawers, stocked with labelled glass bottles and flasks and cream and blue glazed jars.">
       <img src="../assets/apothecary-shelf-hero.webp" alt="A stained wooden shelf with an arched crest, gallery rails and three brass-knobbed drawers, stocked with labelled glass bottles and flasks and cream and blue glazed jars." width="1280" height="720" fetchpriority="high" />
     </button>
@@ -3420,7 +3420,7 @@ <h3><a class="stretch" href="../wooden-barrel/">Wooden Barrel</a></h3>
         </article>
       </div>
     </section>
-    <nav class="pager pager-foot" aria-label="Showcase pieces"><a rel="prev" href="../brazier/" aria-label="Previous showcase piece: brazier"><span aria-hidden="true">&larr;</span> brazier</a><span class="pager-pos hud">32 of 73 showcase pieces</span><a rel="next" href="../wooden-yoke/" aria-label="Next showcase piece: wooden-yoke">wooden-yoke <span aria-hidden="true">&rarr;</span></a></nav>
+    <nav class="pager pager-foot" aria-label="Showcase pieces"><a rel="prev" href="../brazier/" aria-label="Previous showcase piece: brazier"><span aria-hidden="true">&larr;</span> brazier</a><span class="pager-pos hud">32 of 74 showcase pieces</span><a rel="next" href="../wooden-yoke/" aria-label="Next showcase piece: wooden-yoke">wooden-yoke <span aria-hidden="true">&rarr;</span></a></nav>
   </main>
   <dialog class="lightbox" id="lightbox" aria-label="Full-size render">
     <div class="lightbox-bar"><button class="lightbox-close" id="lightboxNative" type="button" aria-pressed="false">Actual size</button><button class="lightbox-close" id="lightboxClose" type="button" autofocus>Close</button></div>

docs/gallery/archery-target/index.html

@@ -45,7 +45,7 @@ <h1>Archery Target</h1>
     <p>A procedural archery range target on a turf patch — a 1.10 m compressed-straw boss coiled from rope courses that show on its back and round its edge, bound with doubled jute twine drawn tight over the crests; an 80 cm ten-zone World Archery face in aged inks with ring lines, an X ring and a printed X, held by four target pins; a timber easel leaning it back 12° on toe skids with knee braces, a ledge with a stop lip on a bolted rail and gussets, a numbered butt board, a strap hinge pinned to a rear leg in a steel ferrule and foot, and a splay chain between eye bolts; five carbon arrows in the face with cresting, nocks and three vanes, one glancing into the straw edge, one snapped with its fletched half on the grass, and a leather quiver of arrows lying among grass tufts — through UVs, bake, LOD, collider, and Unity glTF, asserting recomputed budgets rather than an API contract.</p>
   </header>
   <main id="main">
-    <nav class="pager" aria-label="Showcase pieces"><a rel="prev" href="../cargo-loader/" aria-label="Previous showcase piece: cargo-loader"><span aria-hidden="true">&larr;</span> cargo-loader</a><span class="pager-pos hud">53 of 73 showcase pieces<span class="pager-keys"> &middot; <kbd>&larr;</kbd><kbd>&rarr;</kbd></span></span><a rel="next" href="../cactus-garden/" aria-label="Next showcase piece: cactus-garden">cactus-garden <span aria-hidden="true">&rarr;</span></a></nav>
+    <nav class="pager" aria-label="Showcase pieces"><a rel="prev" href="../cargo-loader/" aria-label="Previous showcase piece: cargo-loader"><span aria-hidden="true">&larr;</span> cargo-loader</a><span class="pager-pos hud">53 of 74 showcase pieces<span class="pager-keys"> &middot; <kbd>&larr;</kbd><kbd>&rarr;</kbd></span></span><a rel="next" href="../cactus-garden/" aria-label="Next showcase piece: cactus-garden">cactus-garden <span aria-hidden="true">&rarr;</span></a></nav>
     <button class="detail-hero" id="heroZoom" type="button" aria-label="View full size: A straw archery boss with a gold, red, blue, black and white face and five arrows, leaning on a timber easel numbered 12, a quiver on the grass patch below.">
       <img src="../assets/archery-target-hero.webp" alt="A straw archery boss with a gold, red, blue, black and white face and five arrows, leaning on a timber easel numbered 12, a quiver on the grass patch below." width="1280" height="720" fetchpriority="high" />
     </button>
@@ -5266,7 +5266,7 @@ <h3><a class="stretch" href="../wooden-barrel/">Wooden Barrel</a></h3>
         </article>
       </div>
     </section>
-    <nav class="pager pager-foot" aria-label="Showcase pieces"><a rel="prev" href="../cargo-loader/" aria-label="Previous showcase piece: cargo-loader"><span aria-hidden="true">&larr;</span> cargo-loader</a><span class="pager-pos hud">53 of 73 showcase pieces</span><a rel="next" href="../cactus-garden/" aria-label="Next showcase piece: cactus-garden">cactus-garden <span aria-hidden="true">&rarr;</span></a></nav>
+    <nav class="pager pager-foot" aria-label="Showcase pieces"><a rel="prev" href="../cargo-loader/" aria-label="Previous showcase piece: cargo-loader"><span aria-hidden="true">&larr;</span> cargo-loader</a><span class="pager-pos hud">53 of 74 showcase pieces</span><a rel="next" href="../cactus-garden/" aria-label="Next showcase piece: cactus-garden">cactus-garden <span aria-hidden="true">&rarr;</span></a></nav>
   </main>
   <dialog class="lightbox" id="lightbox" aria-label="Full-size render">
     <div class="lightbox-bar"><button class="lightbox-close" id="lightboxNative" type="button" aria-pressed="false">Actual size</button><button class="lightbox-close" id="lightboxClose" type="button" autofocus>Close</button></div>