UnitySkills is a REST API-based automation engine that lets AI coding agents control Unity Editor projects, including scenes and other editor operations. It is for developers using Unity with supported coding agents and IDEs. The catalogue skills and commands provide the agent workflows used to operate Unity projects through the engine.
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.
npx agentmods add skills/besty0728/unity-skills/testabilitynpx skills add Besty0728/Unity-Skills --skill testabilitygit clone --depth 1 https://github.com/Besty0728/Unity-SkillsWrote 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.
[](https://agentmods.dev/skills/besty0728/unity-skills/testability)<a href="https://agentmods.dev/skills/besty0728/unity-skills/testability"><img src="https://agentmods.dev/badge/skills/besty0728/unity-skills/testability.svg" alt="Measured on agentmods" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00010 | $0.00329 |
| Opus 5 | $0.00005 | $0.00164 |
| Sonnet 5 | $0.00002 | $0.00066 |
| Haiku 4.5 | $0.00001 | $0.00033 |
Grade A, and why
unity-testability 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.
What it actually says
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
- Improving testability
- Extracting logic for unit tests
- Planning a test strategy
- 提升可测试性、为单元测试抽取逻辑、规划测试策略
Unity Testability Advisor
Use this skill when deciding what logic should remain in Unity-facing classes and what should move into pure C# code.
Review Questions
- Can the rule/algorithm run without
Transform,GameObject, or scene state? - Can config be injected instead of read through static globals?
- Can runtime decisions be moved to a plain C# class and called from a thin
MonoBehaviour? - Does this need PlayMode coverage, or is EditMode enough?
Output Format
- Logic that should move to pure C#
- Logic that should stay Unity-facing
- Suggested seams/interfaces
- Candidate EditMode tests
- Candidate PlayMode tests
Guardrails
Mode: Documentation only — no REST skills to gate; load freely under any operating mode (Approval / Auto / Bypass).
- Do not force test seams everywhere if the script is tiny and scene-bound.
- Prefer a few meaningful seams over abstraction for its own sake.
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.
- 2d ago First seen · 39 lines · 10 tokens per session scan A 9b61752b414b
unity-testability is a skill published in the GitHub repository Besty0728/Unity-Skills (1,707 stars, last pushed yesterday), licensed MIT. It adds 10 tokens to every session and 329 once invoked, about $0.0001 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 2026-09-03.
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