closed-surface-uv-coverage

closed-surface-uv-coverage is a skill for Claude Code from CheshireJCat/blender. It costs 86 tokens per session (822 once invoked), scanned A, a copy of closed-surface-uv-coverage, MIT.

A Blender texture-coverage guide for closed or extruded models, including their front faces, back faces, and side walls. It checks that textures and decals are applied to the actual model surfaces rather than only to floating overlays.

In plain words
What is it for?
Use it to classify surface areas, assign UVs or procedural materials, cover back caps and sidewalls, and test texture coverage from turntable views.
Why use it?
It catches models that look correct from the front but reveal blank backs or sides when rotated or viewed edge-on.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Good fit Use it to classify surface areas, assign UVs or procedural materials, cover back caps and sidewalls, and test texture coverage from turntable views.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/cheshirejcat/blender/closed-surface-uv-coverage
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add CheshireJCat/blender --skill closed-surface-uv-coverage
Clone the repo
git clone --depth 1 https://github.com/CheshireJCat/blender

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for closed-surface-uv-coverage

README.md
[![agentmods](https://agentmods.dev/badge/skills/cheshirejcat/blender/closed-surface-uv-coverage/github.svg)](https://agentmods.dev/skills/cheshirejcat/blender/closed-surface-uv-coverage)
Your own site
<a href="https://agentmods.dev/skills/cheshirejcat/blender/closed-surface-uv-coverage"><img src="https://agentmods.dev/badge/skills/cheshirejcat/blender/closed-surface-uv-coverage/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for closed-surface-uv-coverage

Your own site · 80×15
<a href="https://agentmods.dev/skills/cheshirejcat/blender/closed-surface-uv-coverage"><img src="https://agentmods.dev/badge/skills/cheshirejcat/blender/closed-surface-uv-coverage.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 86 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 822 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin 91% copy Near-identical to another mod in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00086 $0.00822
Opus 5 $0.00043 $0.00411
Sonnet 5 $0.00017 $0.00164
Haiku 4.5 $0.00009 $0.00082

Measured 10d ago against content hash 3f21816232e4, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

closed-surface-uv-coverage scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 10d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/surface_texture_coverage_audit.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

This is a copy

91% identical to closed-surface-uv-coverage — 2 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

skills/create-3d-model/references/modules/closed-surface-uv-coverage/SKILL.md · 55 lines

How it starts

The opening of the file, as written. The whole thing — 55 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Closed Surface UV Coverage

This skill prevents a common false pass: a model looks textured from the front because it has a projected front image or curve overlays, but the closed surface has untextured back caps or plain sidewalls when viewed in a spin/turntable.

Failure modes to catch

  • Back detail is only a floating plane or curve overlay, not a material/UV on the back surface.
  • Sidewalls have procedural color only; no side UV island, generated/object coordinate material, or baked strip.
  • A back projection covers only a center shape and leaves the actual silhouette/back mesh plain.
  • Side/back QA uses front-biased frames and misses edge-on/back-on samples.
  • Decorative HUD/aura is mistaken for surface texture coverage.

Required surface taxonomy

For extruded/logo-like assets, classify visible surfaces before look-dev:

  1. front_cap — canonical front texture/decal.
  2. back_cap — back texture, back linework, or baked/procedural fill mapped to the real back cap.
  3. sidewall — depth surface connecting front/back, with its own UV parameterization or procedural material.
  4. overlay_context — HUD/aura/circles; never counted as model surface coverage.

Workflow

  1. Audit current coverage: list mesh material slots, UV layers, image texture nodes, and face counts for front/back/side material indices.
  2. Reject overlay-only fixes: curves/planes may add rim accents, but they do not satisfy back/side fill unless the mesh surface beneath is also textured/materialized.
  3. Create per-surface UVs:
    • front/back caps: project local X/Z to UV 0–1 or map into a back/front atlas rectangle;
    • sidewall: map perimeter arc length to U and depth/front-back coordinate to V;
    • if a clean side texture is unavailable, use a generated procedural side material plus baked glow/edge strip and document it.
  4. Assign true surface materials: back cap and sidewall mesh faces must have material nodes, active UVs, and/or generated coordinates. Optional curves are accents only.
  5. Validate turntable frames: sample front, 45°, side/edge-on, back-on, opposite 45°, and rest. Back and side frames must show surface fill, not just outlines.

Read the full file on GitHub · 55 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 10d ago First seen · 55 lines · 86 tokens per session scan A 3f21816232e4

Subscribe to this mod's changes

closed-surface-uv-coverage is a skill published in the GitHub repository CheshireJCat/blender (26 stars, last pushed 20d ago), licensed MIT. It adds 86 tokens to every session and 822 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 0 findings. It is 91% identical to closed-surface-uv-coverage, differing in 2 lines, and is treated as a copy.

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