unity-optimization

A set of tools for reducing the size and improving the performance of Unity projects, including their assets and scenes.

In plain words
What is it for?
Use it to analyze scenes, find large or duplicate assets, inspect static settings, compress textures, models, and audio, set static flags, and configure level-of-detail groups.
Why use it?
It helps identify large files, duplicated materials, excessive scene complexity, and rendering overdraw that can increase build size or slow a game.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/besty0728/unity-skills/optimization
Any agent
npx skills add Besty0728/Unity-Skills --skill optimization
Clone the repo
git clone --depth 1 https://github.com/Besty0728/Unity-Skills

Made for: Claude Code, Codex.

Per session 9 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,946 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found 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 $0.00009 $0.01946
Opus 5 $0.00005 $0.00973
Sonnet 5 $0.00002 $0.00389
Haiku 4.5 $0.00001 $0.00195

Measured 2d ago against content hash 6918beccee0b, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

unity-optimization 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 2d ago.

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

Copies of this mod

1 near-identical copy found in the catalogue:

SkillsForUnity/unity-skills~/skills/optimization/SKILL.md · 151 lines

How it starts

The opening of the file, as written. The whole thing — 151 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Before calling any skill in this module: if you are about to call a skill with parameters guessed from its name or description, STOP — read this file (or fetch its schema via GET /skills/recommend?includeSchema=true) first. If you already have the parameter definitions from recommend/schema, you may proceed straight to dryRun.

Triggers

  • Reducing build size
  • Batch-compressing assets
  • Analyzing scene poly/material usage
  • 缩减包体、批量压缩资源、分析场景面数与材质用量

Optimization Skills

Optimize project assets (Textures, Models).

Operating Mode

  • Approval: 只读分析类 skill(optimize_analyze_scene / optimize_find_large_assets / optimize_get_static_flags / optimize_find_duplicate_materials / optimize_analyze_overdraw,标 SkillMode.SemiAuto)直接执行;写型 skill(optimize_textures / optimize_mesh_compression / optimize_audio_compression / optimize_set_static_flags / optimize_set_lod_group,默认 SkillMode.FullAuto)需用户 grant,grant 后一步执行返结果。
  • Auto / Bypass: 直接执行。
  • 本模块不含 Delete / PlayMode / Reload / RiskLevel=high 类 skill —— 写型 skill 改的是 Importer / 组件设置,会重新导入资源,但不会触发 Domain Reload,也不会被 IsForbiddenInSemi 拦截。批量操作前务必检查筛选范围(filter / assetType),改完无 dry-run 回滚。

DO NOT (common hallucinations):

  • optimize_scene / optimization_run do not exist → use specific skills: optimize_analyze_scene, optimize_find_large_assets, optimize_find_duplicate_materials, etc.
  • optimize_compress / optimize_compress_textures / optimize_compress_meshes / optimize_compress_audio do not exist → use optimize_textures (textures), optimize_mesh_compression (meshes), optimize_audio_compression (audio)
  • optimize_set_lod / optimize_setup_lod do not exist → use optimize_set_lod_group
  • Optimization skills are analysis + action tools — always review results before applying batch changes

Routing:

  • For profiler metrics → use profiler module
  • For static batching flags → optimize_set_static_flags (this module)
  • For performance review guidance → load performance advisory module

Read the full file on GitHub · 151 lines

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. 2d ago First seen · 151 lines · 9 tokens per session scan A 6918beccee0b

Subscribe to this mod's changes

unity-optimization is a skill published in the GitHub repository Besty0728/Unity-Skills (1,695 stars, last pushed today), licensed MIT. It adds 9 tokens to every session and 1,946 once invoked, about $0.0000 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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