Agent skill

Collision Proxy

Collision proxy authoring for games including UCX/UHX naming, convex hulls, capsules, and simple collider meshes in Blender via MCP.

MITAuto-check passedGame Development

Install Collision Proxy

skills CLI

$ npx skills add arjun988/blender-skills --skill collision-proxy -a claude-code

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

GitHub CLI

$ gh skill install arjun988/blender-skills collision-proxy --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/collision-proxy .claude/skills/collision-proxy && 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/

Paste into Claude Code

Install the "collision-proxy" agent skill from https://github.com/arjun988/blender-skills/tree/main/.claude/skills/collision-proxy into .claude/skills/collision-proxy/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "collision-proxy", then confirm the skill loads.

Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

$skill-installer

$skill-installer install https://github.com/arjun988/blender-skills/tree/main/.claude/skills/collision-proxy

Type this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.

skills CLI

$ npx skills add arjun988/blender-skills --skill collision-proxy -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install arjun988/blender-skills collision-proxy --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/arjun988/blender-skills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.claude/skills/collision-proxy .agents/skills/collision-proxy && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "collision-proxy" agent skill from https://github.com/arjun988/blender-skills/tree/main/.claude/skills/collision-proxy into .agents/skills/collision-proxy/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "collision-proxy", then confirm the skill loads.

Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add arjun988/blender-skills --skill collision-proxy -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install arjun988/blender-skills collision-proxy --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/arjun988/blender-skills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.claude/skills/collision-proxy .cursor/skills/collision-proxy && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "collision-proxy" agent skill from https://github.com/arjun988/blender-skills/tree/main/.claude/skills/collision-proxy into .cursor/skills/collision-proxy/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "collision-proxy", then confirm the skill loads.

Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

gemini skills install

$ gemini skills install https://github.com/arjun988/blender-skills.git --path .claude/skills/collision-proxy

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add arjun988/blender-skills --skill collision-proxy -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install arjun988/blender-skills collision-proxy --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/arjun988/blender-skills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.claude/skills/collision-proxy .gemini/skills/collision-proxy && rm -rf skills-src

Use ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.

Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/

Paste into Gemini CLI

Install the "collision-proxy" agent skill from https://github.com/arjun988/blender-skills/tree/main/.claude/skills/collision-proxy into .gemini/skills/collision-proxy/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "collision-proxy", then confirm the skill loads.

Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

GitHub CLI

$ gh skill install arjun988/blender-skills collision-proxy

Installs for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).

skills CLI

$ npx skills add arjun988/blender-skills --skill collision-proxy -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

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

Use ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.

GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/

Paste into GitHub Copilot

Install the "collision-proxy" agent skill from https://github.com/arjun988/blender-skills/tree/main/.claude/skills/collision-proxy into .github/skills/collision-proxy/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "collision-proxy", then confirm the skill loads.

GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add arjun988/blender-skills --skill collision-proxy -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install arjun988/blender-skills collision-proxy --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/arjun988/blender-skills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.claude/skills/collision-proxy .opencode/skills/collision-proxy && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "collision-proxy" agent skill from https://github.com/arjun988/blender-skills/tree/main/.claude/skills/collision-proxy into .opencode/skills/collision-proxy/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "collision-proxy", then confirm the skill loads.

OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

Facts

Skill name: collision-proxy
GitHub stars: 271
Token cost: ~574 tokens
SKILL.md length: 196 words
Files: 3 (incl. references)
Skills in repo: 38
Repo updated: Jul 10, 2026
First seen: Oct 7, 2026
Licence: MIT

At a glance

Collision proxy authoring for games including UCX/UHX naming, convex hulls, capsules, and simple collider meshes in Blender via MCP.

Works in 5 steps: Slightly smaller than visual mesh to… → No holes; watertight convex pieces → Apply scale → …
Tasks that involve Game development
SKILL.md covers When to Use, Workflow, Collider Types and Unreal Naming, plus 5 more sections
Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Collision Proxy is an agent skill from arjun988/blender-skills. Collision proxy authoring for games including UCX/UHX naming, convex hulls, capsules, and simple collider meshes in Blender via MCP.

Its SKILL.md is about 570 tokens, which your agent loads only when the skill is triggered. The skill folder holds 3 other files, including reference files (for example `references/collider-recipes.md` and `references/engine-naming.md`).

It sits in Game Development, covering 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

Tasks that involve Game development

Example prompts

“/collision-proxy”

Workflow steps

5 steps, taken from the first numbered list in SKILL.md.

Slightly smaller than visual mesh to reduce snagging (project-dependent)
No holes; watertight convex pieces
Apply scale
Origin aligned with render mesh
Collection: COL_Collision_[Asset]

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

Collision Proxy loads about 574 tokens when it runs, and up to ~699 if it reads all its reference files. Until then it costs about 37 tokens; SKILL.md has 196 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~37
When it runs · the whole SKILL.md, loaded when a task matches: ~574
With references · SKILL.md plus every file in references/, read only if the agent opens them: ~699

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). 196 words, ~574 tokens.

Download SKILL.mdSave it as .claude/skills/collision-proxy/SKILL.md (or your agent's skills folder). This skill also uses 2 other files; get the full folder from GitHub.

name: collision-proxy
description: Collision proxy authoring for games including UCX/UHX naming, convex hulls, capsules, and simple collider meshes 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: collision, collider, UCX, UHX, convex hull, physics proxy, hitbox, blocking volume
metadata.related-skills: lod-pipeline, unity-export, unreal-export, asset-optimization, physics-sim

Collision Proxy

Simple, stable colliders. Prefer primitives and convex pieces over render mesh.

When to Use

Game physics / blocking volumes
Unreal UCX export
Unity mesh or primitive colliders
Hitboxes for interactables

Workflow

Identify collision needs → Build proxies → Name correctly
  → Test overlaps → Export with render mesh

Collider Types

Type	Use
Box	Crates, walls, simple props
Capsule	Characters, poles
Sphere	Balls, soft approximates
Convex hull	Organic / irregular single body
Multiple convex (UCX)	Vehicles, complex props

Unreal Naming

UCX_SM_Asset_01
UCX_SM_Asset_02

Must match associated mesh naming rules for auto-association
Convex only for UCX

Unity Notes

Prefer engine primitives when possible
Mesh colliders: convex toggle for dynamic rigidbodies
Keep proxy collection exportable

Authoring Rules

Slightly smaller than visual mesh to reduce snagging (project-dependent)
No holes; watertight convex pieces
Apply scale
Origin aligned with render mesh
Collection: COL_Collision_[Asset]

Validation

Player cannot fall through intended blockers
No huge invisible walls beyond mesh
Wheel/character capsules oriented correctly
Named for target engine

Constraints

MUST DO

Prefer few simple shapes over one complex mesh
Match engine naming conventions
Keep proxies in dedicated collection

MUST NOT DO

Use render LOD0 as physics mesh by default
Non-convex UCX for Unreal auto-convex workflows

Reference Guide

Topic	Reference	Load When
Collider Recipes	`references/collider-recipes.md`	When needed
Engine Naming	`references/engine-naming.md`	When needed

Files

SKILL.md and 2 other files (references) in .claude/skills/collision-proxy of arjun988/blender-skills.

SKILL.md
references/collider-recipes.md
references/engine-naming.md

Open the folder on GitHubat commit 8f778d2

Compare with similar skills

Collision Proxy 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.

Collision Proxy compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Collision Proxy this skillarjun988/blender-skills	271	—	~574	Automated safety check: Pass	MIT	2 mo ago
Scenario 3Dscenario-labs/skills	898	—	~3.8k	Automated safety check: Pass	MIT	today
Sprite Genaldegad/sprite-gen	2.6k	—	~4.4k	Automated safety check: Pass	Apache-2.0	today
Unreal Blueprint Authoringflopperam/unreal-engine-mcp	1.1k	—	~1.6k	Automated safety check: Pass	None	3 mo ago
MCP DriverRandallLiuXin/GodotMaker	549	1 repos	~1.1k	Automated safety check: Pass	Custom licence	20 days ago
Text To 3D AssetLaurentiuGabriel/unreal-game-assets-creation-skill	146	—	~2.1k	Automated safety check: Pass	None	2 mo ago

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Questions about Collision Proxy

What does Collision Proxy do?

Collision proxy authoring for games including UCX/UHX naming, convex hulls, capsules, and simple collider meshes in Blender via MCP. Collision Proxy is an agent skill from arjun988/blender-skills. Collision proxy authoring for games including UCX/UHX naming, convex hulls, capsules, and simple collider meshes in Blender via MCP.

When should I use Collision Proxy?

Collision Proxy fits situations like: tasks that involve Game development.

How do I install Collision Proxy in Claude Code?

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

How do I install Collision Proxy in Codex?

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

Can I use Collision Proxy 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 collision-proxy -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/collision-proxy, .gemini/skills/collision-proxy, .github/skills/collision-proxy and .opencode/skills/collision-proxy in your project.

What does Collision Proxy need to run?

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

Does Collision Proxy 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 Collision Proxy 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 Collision Proxy use?

Collision Proxy 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 Collision Proxy use?

About 574 tokens (SKILL.md is roughly 2.3k 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 125 tokens, read only when the agent opens those files.

What are the alternatives to Collision Proxy?

Skills that share tags, products or a category with Collision Proxy: Scenario 3D (scenario-labs/skills, 898 stars), Sprite Gen (aldegad/sprite-gen, 2.6k stars), Unreal Blueprint Authoring (flopperam/unreal-engine-mcp, 1.1k stars) and MCP Driver (RandallLiuXin/GodotMaker, 549 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Collision Proxy?

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.

Install Collision Proxy

Facts

At a glance

What it does

When your agent uses it

Example prompts

Workflow steps

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Collision Proxy

When to Use

Workflow

Collider Types

Unreal Naming

Unity Notes

Authoring Rules

Validation

Constraints

MUST DO

MUST NOT DO

Reference Guide

Files

Compare with similar skills

Similar skills

More from arjun988/blender-skills

Related

Questions about Collision Proxy