Agent skill

Unity Vrc Skills Renovator

by niaka3dayo in niaka3dayo/agent-skills-vrc-udon

VRChat skill renovator for knowledge fill, refresh, and quality improvement.

MITAuto-check passedGame Development

Install Unity Vrc Skills Renovator

skills CLI
$ npx skills add niaka3dayo/agent-skills-vrc-udon --skill unity-vrc-skills-renovator -a claude-code

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

GitHub CLI
$ gh skill install niaka3dayo/agent-skills-vrc-udon unity-vrc-skills-renovator --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/niaka3dayo/agent-skills-vrc-udon.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/skills/unity-vrc-skills-renovator .claude/skills/unity-vrc-skills-renovator && 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
unity-vrc-skills-renovator
GitHub stars
332
Token cost
~2.4k tokens
SKILL.md length
665 words
Files
6 (incl. references)
Skills in repo
3
Repo updated
First seen
Licence
MIT

At a glance

VRChat skill renovator for knowledge fill, refresh, and quality improvement.

  • Works in 8 steps: Current State Analysis → Information Gathering → Renovation Plan → …
  • Updating VRChat skills to new SDK versions
  • SKILL.md covers Overview, Target Skills, Renovation Procedure and Official Sources, plus 1 more section
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Unity Vrc Skills Renovator is an agent skill from niaka3dayo/agent-skills-vrc-udon. VRChat skill renovator for knowledge fill, refresh, and quality improvement. Use this skill when updating VRChat skills to new SDK versions, filling missing knowledge, fixing outdated information, or improving skill quality. Targets unity-vrc-udon-sharp and unity-vrc-world-sdk-3 skills. Triggers on: update skills, SDK latest, knowledge fill, skill maintenance, information audit, catch-up, renovate, refresh, improve skills, SDK update.

Its SKILL.md is about 2.4k tokens, which your agent loads only when the skill is triggered. The skill folder holds 6 other files, including reference files (for example `references/changelog-sources.md`, `references/search-queries.md` and `references/skill-structure.md`).

It sits in Game Development. The repository describes itself as: Skills, rules, and validation hooks that teach AI coding agents to generate correct UdonSharp code. The licence is MIT.

When your agent uses it

  • Updating VRChat skills to new SDK versions
  • Filling missing knowledge
  • Fixing outdated information
  • Improving skill quality

Example prompts

  • “/unity-vrc-skills-renovator”

Workflow steps

8 steps, taken from the step headings in SKILL.md.

  1. Current State Analysis
  2. Information Gathering
  3. Renovation Plan
  4. Update unity-vrc-udon-sharp
  5. Update unity-vrc-world-sdk-3
  6. New File Creation (if needed)
  7. Rules & Enforcement Layer Sync
  8. Validation

What it can do on your machine

Read from SKILL.md and the folder at commit f6dc6c0. 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 (its code samples are markdown).

    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

Unity Vrc Skills Renovator loads about 2.4k tokens when it runs, and up to ~9.8k if it reads all its reference files. Until then it costs about 116 tokens; SKILL.md has 665 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~116
When it runs · the whole SKILL.md, loaded when a task matches
~2.4k
With references · SKILL.md plus every file in references/, read only if the agent opens them
~9.8k

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 niaka3dayo/agent-skills-vrc-udon at commit f6dc6c0, republished under its MIT licence (© niaka3dayo). 665 words, ~2,377 tokens.

Download SKILL.mdSave it as .claude/skills/unity-vrc-skills-renovator/SKILL.md (or your agent's skills folder). This skill also uses 5 other files; get the full folder from GitHub.
name
unity-vrc-skills-renovator
description
VRChat skill renovator for knowledge fill, refresh, and quality improvement. Use this skill when updating VRChat skills to new SDK versions, filling missing knowledge, fixing outdated information, or improving skill quality. Targets unity-vrc-udon-sharp and unity-vrc-world-sdk-3 skills. Triggers on: update skills, SDK latest, knowledge fill, skill maintenance, information audit, catch-up, renovate, refresh, improve skills, SDK update.
license
MIT
metadata.author
niaka3dayo
metadata.version
4.1.1
metadata.tags
skill-maintenance, sdk-update, knowledge-management
metadata.internal
true

VRC Skills Renovator

Overview

A guide for renovating (filling knowledge, refreshing, and improving quality of) VRChat-related skills in this repository.

Three Pillars of Renovation
PillarDescriptionExamples
FillAdding missing knowledgeUndocumented APIs, patterns, tips
RefreshUpdating outdated informationNew SDK version support, removing deprecated APIs
Quality ImprovementImproving accuracy and coverage of existing knowledgeAdding code examples, improving explanations

Target Skills

Path notation: skills/ refers to the skills/ directory at the repository root. rules/ refers to files under skills/unity-vrc-udon-sharp/rules/. This skill itself resides at .claude/skills/unity-vrc-skills-renovator/ (dev-only, not distributed via npm).

SkillDirectoryContent
unity-vrc-udon-sharpskills/unity-vrc-udon-sharp/UdonSharp coding, networking, events
unity-vrc-world-sdk-3skills/unity-vrc-world-sdk-3/VRC components, layer settings, world optimization

Renovation Procedure

Phase 1: Current State Analysis
  1. Check the active and verified SDK target for each skill
text
Read: skills/unity-vrc-udon-sharp/SKILL.md
Read: skills/unity-vrc-world-sdk-3/SKILL.md
→ Check the "Active support / last verified" line in each file
  1. Check the file list for each skill
text
Glob: skills/unity-vrc-udon-sharp/**/*
Glob: skills/unity-vrc-world-sdk-3/**/*
Phase 2: Information Gathering

Execute the following search queries in parallel to collect the latest information:

text
# Required searches (parallel execution recommended)
1. "VRChat SDK {current year} new features updates changelog"
2. "UdonSharp VRChat SDK 3.{next minor version} changes"
3. "VRChat Worlds SDK {current year} UdonSharp"
4. "VRChat World SDK components new features {current year}"

# Supplementary searches (as needed)
5. "VRChat SDK NetworkCallable parameters"
6. "VRChat SDK persistence PlayerData"
7. "VRChat SDK PhysBones Contacts worlds"

See references/search-queries.md for details.

Phase 3: Renovation Plan

Classify collected information by the 3 pillars and target skills:

Classification by Pillar
PillarContentAction
FillInformation not yet in the skillAdd new sections, add code examples
RefreshOutdated informationUpdate version references, remove deprecated APIs
Quality ImprovementInaccurate or insufficient descriptionsImprove explanations, add patterns
Classification by Skill
CategoryTarget SkillExamples
C# API, networking, sync variablesunity-vrc-udon-sharpNetworkCallable, new events
Components, layers, optimizationunity-vrc-world-sdk-3New components, setting changes
Affects bothBothSDK version references, Persistence
Phase 4: Update unity-vrc-udon-sharp
PriorityFileUpdate Content
1SKILL.mdSDK version support, new feature summary
2references/constraints.mdNewly available features
3references/networking.mdNew networking features
4references/events.mdNew events
5references/api.mdNew APIs
6CHEATSHEET.mdQuick reference update
7references/patterns.mdNew feature usage patterns
8references/troubleshooting.mdTroubleshooting
Phase 5: Update unity-vrc-world-sdk-3
PriorityFileUpdate Content
1SKILL.mdSDK version support, new feature summary
2references/components.mdNew components, property changes
3references/layers.mdLayer/collision changes
4references/performance.mdNew optimization guidelines
5references/lighting.mdLighting-related changes
6references/audio-video.mdAudio/video-related changes
7references/upload.mdUpload procedure changes
8CHEATSHEET.mdQuick reference update
9references/troubleshooting.mdTroubleshooting
Phase 6: New File Creation (if needed)

When major new features are added:

  • Create a dedicated reference file in the corresponding skill's references/
  • Add a link in the corresponding SKILL.md Resources section
Phase 7: Rules & Enforcement Layer Sync

When the Knowledge layer (references/*.md) changes, always sync the Rules layer and Enforcement layer as well.

Show full SKILL.md (274 more words)Show less
7a. Rules Layer — Auto-loaded Rules (skills/unity-vrc-udon-sharp/rules/)
text
Read: skills/unity-vrc-udon-sharp/rules/udonsharp-constraints.md
Read: skills/unity-vrc-udon-sharp/rules/udonsharp-networking.md
Read: skills/unity-vrc-udon-sharp/rules/udonsharp-sync-selection.md
→ Check for differences with the Knowledge layer and reflect the same facts
Change TypeTarget Rule FileAction
Blocked feature added/removedudonsharp-constraints.mdUpdate block list / available list
Networking changesudonsharp-networking.mdUpdate sync modes, limits, patterns
Data budget changesudonsharp-sync-selection.mdUpdate budget values, decision tree
7b. Enforcement Layer — Validation Hooks (hooks/)
text
Read: skills/unity-vrc-udon-sharp/hooks/validate-udonsharp.sh
Read: skills/unity-vrc-udon-sharp/hooks/validate-udonsharp.ps1
→ Add/remove/modify rules based on constraint changes
Change TypeHook-side Action
Feature unblockedRemove the corresponding grep pattern
New constraint addedAdd a new grep pattern
Limit value changedUpdate threshold (synced_count, etc.)
New anti-patternAdd a new warning rule

Important: .sh and .ps1 must maintain the same rule set (don't update only one).

7c. Enforcement Layer — Templates (assets/templates/)
text
Read: skills/unity-vrc-udon-sharp/assets/templates/BasicInteraction.cs
Read: skills/unity-vrc-udon-sharp/assets/templates/SyncedObject.cs
Read: skills/unity-vrc-udon-sharp/assets/templates/PlayerSettings.cs
Read: skills/unity-vrc-udon-sharp/assets/templates/CustomInspector.cs
→ Remove deprecated patterns and reflect new best practices
Change TypeTemplate-side Action
New API becomes recommendedUpdate template to use the new API
Pattern becomes deprecatedRewrite to the recommended pattern
New best practiceReflect in the relevant template, or create a new template
Phase 8: Validation
  1. Unify SDK version references across all files
  2. Verify cross-reference links between both skills
  3. Check code sample syntax
  4. 3-layer consistency check: Verify that Knowledge / Rules / Enforcement reflect the same facts
    • Constraint lists are consistent across all 3 layers
    • Limit values (synced variable count, string length, etc.) are consistent across all 3 layers
    • Templates do not use blocked features

Official Sources

See references/changelog-sources.md for details.

Primary Sources
SourceURLContent
SDK Releasescreators.vrchat.com/releases/Official release notes
UdonSharp Blogudonsharp.docs.vrchat.com/news/UdonSharp-specific updates
VRChat Cannyfeedback.vrchat.com/udonFeature requests and completion status
WebSearch for Official Documentation
text
# Search official documentation
WebSearch: "API name or feature site:creators.vrchat.com"

# UdonSharp API reference
WebSearch: "API name site:udonsharp.docs.vrchat.com"
Search Notes
  • The VRChat official site may return 403 errors, so use WebSearch instead of WebFetch
  • Japanese sources (Qiita, etc.) can be helpful but prioritize official information
  • Also check the UdonSharp releases page on GitHub

Renovation History Template

Record renovations in the following format:

markdown
## Renovation History

### YYYY-MM-DD - Summary (e.g., SDK X.Y.Z support / knowledge fill / quality improvement)

**Fill (New additions):**
- Added knowledge / sections

**Refresh (Updates / Fixes):**
- Updated info / corrections

**Quality Improvement:**
- Improved descriptions / added examples

**Rules Layer Sync:**
- unity-vrc-udon-sharp/rules/udonsharp-constraints.md: changes
- unity-vrc-udon-sharp/rules/udonsharp-networking.md: changes

**Enforcement Layer Sync:**
- hooks/validate-udonsharp.sh: rules added/removed
- hooks/validate-udonsharp.ps1: synced with .sh
- assets/templates/SyncedObject.cs: pattern updated

**Changed Files:**
- unity-vrc-udon-sharp/file.md: changes
- unity-vrc-world-sdk-3/file.md: changes

**3-Layer Consistency**: OK / NG (details)

© niaka3dayo, 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 5 other files (references) in .claude/skills/unity-vrc-skills-renovator of niaka3dayo/agent-skills-vrc-udon.

  • SKILL.md
  • LICENSE.txt
  • references/changelog-sources.md
  • references/search-queries.md
  • references/skill-structure.md
  • references/update-checklist.md

Open the folder on GitHubat commit f6dc6c0

Compare with similar skills

Unity Vrc Skills Renovator 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.

Unity Vrc Skills Renovator compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Unity Vrc Skills Renovator this skillniaka3dayo/agent-skills-vrc-udon332—~2.4kAutomated safety check: PassMIT
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Web CloneJane-xiaoer/claude-skill-web-clone1k1 repos~2.7kAutomated safety check: PassMIT
Threejs Game Directormajidmanzarpour/threejs-game-skills2.5k—~2.2kAutomated safety check: PassMIT
Game Asset Generatorhtdt/godogen7.1k—~2.8kAutomated safety check: PassMIT
Threejs Gameplay Systemsvalkor-ai/loom1.2k1 repos~1.4kAutomated safety check: PassApache-2.0

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Questions about Unity Vrc Skills Renovator

What does Unity Vrc Skills Renovator do?

VRChat skill renovator for knowledge fill, refresh, and quality improvement. Unity Vrc Skills Renovator is an agent skill from niaka3dayo/agent-skills-vrc-udon. VRChat skill renovator for knowledge fill, refresh, and quality improvement.

When should I use Unity Vrc Skills Renovator?

Unity Vrc Skills Renovator fits situations like: updating VRChat skills to new SDK versions; filling missing knowledge; fixing outdated information; improving skill quality.

How do I install Unity Vrc Skills Renovator in Claude Code?

Run `npx skills add niaka3dayo/agent-skills-vrc-udon --skill unity-vrc-skills-renovator -a claude-code`. Or copy the skill folder (.claude/skills/unity-vrc-skills-renovator in niaka3dayo/agent-skills-vrc-udon) into .claude/skills/unity-vrc-skills-renovator in your project. Claude Code loads it when a task matches its description.

How do I install Unity Vrc Skills Renovator in Codex?

Run `npx skills add niaka3dayo/agent-skills-vrc-udon --skill unity-vrc-skills-renovator -a codex`. Or copy the skill folder (.claude/skills/unity-vrc-skills-renovator in niaka3dayo/agent-skills-vrc-udon) into .agents/skills/unity-vrc-skills-renovator in your project. Codex loads it when a task matches its description.

Can I use Unity Vrc Skills Renovator 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 niaka3dayo/agent-skills-vrc-udon --skill unity-vrc-skills-renovator -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/unity-vrc-skills-renovator, .gemini/skills/unity-vrc-skills-renovator, .github/skills/unity-vrc-skills-renovator and .opencode/skills/unity-vrc-skills-renovator in your project.

What does Unity Vrc Skills Renovator need to run?

SKILL.md names no scripts, command-line tools or credentials: Unity Vrc Skills Renovator is instructions for the agent only.

Does Unity Vrc Skills Renovator 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 Unity Vrc Skills Renovator 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 Unity Vrc Skills Renovator use?

Unity Vrc Skills Renovator 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 Unity Vrc Skills Renovator use?

About 2.4k tokens (SKILL.md is roughly 9.5k 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 7.5k tokens, read only when the agent opens those files.

What are the alternatives to Unity Vrc Skills Renovator?

Skills that share tags, products or a category with Unity Vrc Skills Renovator: Image to Three.js Model (img2threejs/img2threejs, 18k stars), Web Clone (Jane-xiaoer/claude-skill-web-clone, 1k stars), Threejs Game Director (majidmanzarpour/threejs-game-skills, 2.5k stars) and Game Asset Generator (htdt/godogen, 7.1k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Unity Vrc Skills Renovator?

niaka3dayo (a GitHub user) maintains it in niaka3dayo/agent-skills-vrc-udon, which has 332 GitHub stars. The repository holds 3 skills in this directory. The repository was last updated on September 14, 2026.

Source: niaka3dayo/agent-skills-vrc-udon on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.