Raise character limits and document optional Blender MCP

docs/asset-tooling.md

@@ -189,7 +189,7 @@ Caveats:
 `adapt` is the mechanical first half of an external-mesh intake (MakeHuman,
 MPFB, downloaded GLB): import, apply transforms, ground the feet, weld seam
 splits, decimate to the character budget, and export a GLB. It does **not** map
-the five tint slots or rebuild the 13-bone `npc_base` armature — those stay a
+the five tint slots or rebuild the 13-core-bone `npc_base` armature (optional extra bones are allowed) — those stay a
 manual `retopology`/`rigging` step with a recorded second-rig contract if the
 source rig cannot be retargeted:
 
@@ -198,8 +198,8 @@ flatpak run org.blender.Blender --background \
   --python "$PWD/tools/blender_assets.py" -- adapt \
   --file "$PWD/tmp/npc-research/makehuman_base.glb" \
   --out "$PWD/tmp/npc-research/makehuman_adapted.glb" \
-  --target-tris 8000
-# prints: adapted makehuman_adapted.glb: 36972 -> 8000 tris (bones=N, meshes=1)
+  --target-tris 16000
+# prints: adapted makehuman_adapted.glb: 36972 -> 16000 tris (bones=N, meshes=1)
 ```
 
 Run `inspect` on the adapted GLB before and after, and keep the procedural
@@ -343,6 +343,14 @@ python3 tools/model_pipeline.py audit
 python3 tools/npc_pipeline.py audit
 ```
 
+### Optional interactive Blender MCP
+
+The headless pipeline above is authoritative. For local part exploration, an
+optional Blender MCP bridge can query the scene, run small `bpy` snippets and
+capture viewport screenshots. It is not a build, CI, test or runtime dependency;
+setup, safety and the part workflow are in
+[`blender-mcp.md`](blender-mcp.md).
+
 ## Realism pass: scene concepts, skylines and textures
 
 The skyline, surface tiles and phase lighting were rebuilt against AI concept frames. The