chore: install blender-skills 1.3.0 for modelling work

94 MIT-licensed skill packs plus their shared references, copied unedited from
the local checkout of github.com/arjun988/blender-skills at commit 8f778d2
(1.2 MB, 269 Markdown files). They are agent instructions, not add-ons; the
pipeline still drives Blender headlessly through bpy, so the optional Blender MCP
server is not required. Provenance recorded in THIRD_PARTY_NOTICES.md and the
version, source, and update procedure in Docs/toolchain.md.

Docs/toolchain.md

@@ -25,6 +25,19 @@ Audited 2026-11-06 on the development workstation.
 
 Unreal Engine 5.9 is in preview and Unreal Engine 6 has been announced as of November 2026. Neither is a pin candidate for `0.x`. One engine family per milestone; a family change is a breaking change and belongs in `CHANGELOG.md`.
 
+## Agent skills
+
+| Item | Value |
+| --- | --- |
+| Package | blender-skills `1.3.0`, upstream commit `8f778d2`, MIT |
+| Source | <https://github.com/arjun988/blender-skills> |
+| Location | `.agents/skills/blender-skills/` — 94 skills plus a shared `references/` directory, 269 Markdown files, 1.2 MB |
+| Installed | 2026-11-06, copied from a local checkout of `.claude/skills/` without edits |
+
+These are instructions and reference notes for agents, not code that runs in a build. Four of them assume a **Blender MCP server**; this project drives Blender headlessly through `bpy` (`Tools/*.py`) instead, so MCP is optional and nothing depends on it.
+
+To update: copy `.claude/skills/` from a newer upstream checkout over the existing directory, then record the new version and commit hash in this table. Skills are read on demand, so the harness catalog may need a reload before they appear as first-class entries.
+
 ## Pin rules
 
 - One engine build per release. Record the launcher or source build, the patch version, and the build date in this file and in the release entry.