Agent skill

Cloth Sim

by arjun988 in arjun988/blender-skills

Garment blockout, cloth simulation, pin groups, and bake to shape keys or caches for characters and props in Blender via MCP.

MITAuto-check passedGame Development

Install Cloth Sim

skills CLI
$ npx skills add arjun988/blender-skills --skill cloth-sim -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install arjun988/blender-skills cloth-sim --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/arjun988/blender-skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/skills/cloth-sim .claude/skills/cloth-sim && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
cloth-sim
GitHub stars
271
Token cost
~617 tokens
SKILL.md length
197 words
Files
4 (incl. references)
Skills in repo
38
Repo updated
First seen
Licence
MIT

At a glance

Garment blockout, cloth simulation, pin groups, and bake to shape keys or caches for characters and props in Blender via MCP.

  • Game Development work in your project
  • SKILL.md covers When to Use, Workflow, Mesh Prep and Vertex Groups, plus 4 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Cloth Sim is an agent skill from arjun988/blender-skills. Garment blockout, cloth simulation, pin groups, and bake to shape keys or caches for characters and props in Blender via MCP.

Its SKILL.md is about 620 tokens, which your agent loads only when the skill is triggered. The skill folder holds 4 other files, including reference files (for example `references/bake-targets.md`, `references/cloth-settings-presets.md` and `references/pin-and-collide.md`).

It sits in Game Development. It works with Model Context Protocol and Blender. The repository describes itself as: 94 specialist Blender skills for Cursor, Claude Code, Kiro & Codex - MCP-powered production pipeline from blockout to engine export. The licence is MIT.

When your agent uses it

  • Game Development work in your project

Example prompts

  • “/cloth-sim”

What it can do on your machine

Read from SKILL.md and the folder at commit 8f778d2. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md.

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Cloth Sim loads about 617 tokens when it runs, and up to ~880 if it reads all its reference files. Until then it costs about 34 tokens; SKILL.md has 197 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~34
When it runs · the whole SKILL.md, loaded when a task matches
~617
With references · SKILL.md plus every file in references/, read only if the agent opens them
~880

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from arjun988/blender-skills at commit 8f778d2, republished under its MIT licence (© arjun988). 197 words, ~617 tokens.

Download SKILL.mdSave it as .claude/skills/cloth-sim/SKILL.md (or your agent's skills folder). This skill also uses 3 other files; get the full folder from GitHub.
name
cloth-sim
description
Garment blockout, cloth simulation, pin groups, and bake to shape keys or caches for characters and props in Blender via MCP.
license
MIT
metadata.author
https://github.com/arjun988
metadata.version
1.0.0
metadata.domain
blender
metadata.role
specialist
metadata.triggers
cloth, garment, clothing sim, fabric sim, pin group, shape key bake, cloth bake, dress, cape, soft clothing
metadata.related-skills
character-artist, physics-sim, materials, animation, export-pipeline

Cloth Sim

Garment blockout → sim → art-direct → bake. Stable pins. Engine-friendly caches/shape keys.

When to Use

  • Dresses, capes, coats, flags, banners
  • Character clothing that needs drape
  • Baking sim to shape keys or Alembic/USD caches
  • Pre-roll settling before animation export

Workflow

Garment mesh (quad-friendly) → Vertex groups (pin/collide)
  → Cloth modifier settings → Collision objects
  → Pre-roll settle → Sim pass → Art-direct fixes
  → Bake shape keys / cache → Cleanup → Export

Mesh Prep

  • Quads preferred; even density on deforming areas
  • Avoid long skinny triangles on folds
  • Apply scale before sim
  • Separate garment from body collider

Vertex Groups

GroupPurpose
PIN_ClothAnchors (waist, shoulders, collar)
COL_IgnoreOptional non-colliding regions
STIFF_HighBelts, seams that should resist stretch

Settings Starters

LookQualitySpeedBending
Soft dress8–121.0Low
Stiff coat5–81.0Higher
Flag/cape8–101.0–1.5Low–mid

Tune mass and air viscosity for scale. Always run a settle pre-roll.

Bake Targets

TargetUse
Shape keysGame poses / few frames
Alembic/USDCinematic caches
Armature weightsIf converting to deform-only

Constraints

MUST DO
  • Apply scale; define pin groups before long sims
  • Collide against simplified body capsule/mesh
  • Art-direct after sim (sculpt/corrective keys)
MUST NOT DO
  • Sim hero cloth on ultra-dense sculpt meshes
  • Skip pre-roll (starts mid-air / exploding)
  • Export raw unstable caches

Reference Guide

TopicReferenceLoad When
Cloth Settings Presetsreferences/cloth-settings-presets.mdWhen needed
Pin And Collidereferences/pin-and-collide.mdWhen needed
Bake Targetsreferences/bake-targets.mdWhen needed

© arjun988, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 3 other files (references) in .claude/skills/cloth-sim of arjun988/blender-skills.

  • SKILL.md
  • references/bake-targets.md
  • references/cloth-settings-presets.md
  • references/pin-and-collide.md

Open the folder on GitHubat commit 8f778d2

Compare with similar skills

Cloth Sim next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Cloth Sim compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Cloth Sim this skillarjun988/blender-skills271—~617Automated safety check: PassMIT
Scenario Patina Retexturescenario-labs/skills898—~3.5kAutomated safety check: PassMIT
Scenario Blender Expertscenario-labs/skills898—~3.2kAutomated safety check: PassMIT
Scenario 3Dscenario-labs/skills898—~3.8kAutomated safety check: PassMIT
Game Art PipelinePersonalJarvis/PersonalJarvis116—~566Automated safety check: PassApache-2.0
Blender 3D Vizautomateyournetwork/netclaw674—~1.1kAutomated safety check: PassApache-2.0

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Questions about Cloth Sim

What does Cloth Sim do?

Garment blockout, cloth simulation, pin groups, and bake to shape keys or caches for characters and props in Blender via MCP. Cloth Sim is an agent skill from arjun988/blender-skills. Garment blockout, cloth simulation, pin groups, and bake to shape keys or caches for characters and props in Blender via MCP.

When should I use Cloth Sim?

Cloth Sim fits situations like: game Development work in your project.

How do I install Cloth Sim in Claude Code?

Run `npx skills add arjun988/blender-skills --skill cloth-sim -a claude-code`. Or copy the skill folder (.claude/skills/cloth-sim in arjun988/blender-skills) into .claude/skills/cloth-sim in your project. Claude Code loads it when a task matches its description.

How do I install Cloth Sim in Codex?

Run `npx skills add arjun988/blender-skills --skill cloth-sim -a codex`. Or copy the skill folder (.claude/skills/cloth-sim in arjun988/blender-skills) into .agents/skills/cloth-sim in your project. Codex loads it when a task matches its description.

Can I use Cloth Sim in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add arjun988/blender-skills --skill cloth-sim -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/cloth-sim, .gemini/skills/cloth-sim, .github/skills/cloth-sim and .opencode/skills/cloth-sim in your project.

What does Cloth Sim need to run?

SKILL.md names no scripts, command-line tools or credentials: Cloth Sim is instructions for the agent only.

Does Cloth Sim access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Cloth Sim safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Cloth Sim use?

Cloth Sim is published under the MIT licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Cloth Sim use?

About 617 tokens (SKILL.md is roughly 2.5k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 263 tokens, read only when the agent opens those files.

What are the alternatives to Cloth Sim?

Skills that share tags, products or a category with Cloth Sim: Scenario Patina Retexture (scenario-labs/skills, 898 stars), Scenario Blender Expert (scenario-labs/skills, 898 stars), Scenario 3D (scenario-labs/skills, 898 stars) and Game Art Pipeline (PersonalJarvis/PersonalJarvis, 116 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Cloth Sim?

arjun988 (a GitHub user) maintains it in arjun988/blender-skills, which has 271 GitHub stars. The repository holds 38 skills in this directory. The repository was last updated on July 10, 2026.

Source: arjun988/blender-skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.