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/scriptnpx skills add Besty0728/Unity-Skills --skill scriptgit 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/script)<a href="https://agentmods.dev/skills/besty0728/unity-skills/script"><img src="https://agentmods.dev/badge/skills/besty0728/unity-skills/script.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 | $0.00011 | $0.03285 |
| Opus 5 | $0.00005 | $0.01643 |
| Sonnet 5 | $0.00002 | $0.00657 |
| Haiku 4.5 | $0.00001 | $0.00329 |
Grade A, and why
unity-script 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 yesterday.
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.
How it starts
The opening of the file, as written. The whole thing — 277 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
- Authoring or editing C# code
- Searching across scripts
- Refactoring file layout
- Checking compile errors
- 编写或编辑 C# 代码、跨脚本搜索、重构文件布局、检查编译错误
Unity Script Skills
BATCH-FIRST: Use
script_create_batchwhen creating 2+ scripts. DESIGN-FIRST: Before creating gameplay scripts, actively consider coupling, performance, and maintainability. In an existing project, load../project-scout/SKILL.mdfirst. If the user is asking for architecture or refactoring advice, load../architecture/SKILL.mdand then../patterns/SKILL.md,../async/SKILL.md,../inspector/SKILL.md,../performance/SKILL.md,../script-roles/SKILL.md,../scene-contracts/SKILL.md,../testability/SKILL.md, or../scriptdesign/SKILL.mdas needed.
Operating Mode
- Approval: 只读类 skill（
script_read/script_list/script_find_in_file/script_get_info/script_get_compile_feedback，标SkillMode.SemiAuto）直接执行；本模块没有可 grant 的写型 skill —— 每一个写型 skill 都命中下一条的自动拦截，grant 只会再返一次MODE_FORBIDDEN。 - Auto / Bypass: SemiAuto 与（Bypass 下的）写型 skill 直接执行。
- 本模块全部 7 个写型 skill 都是 Delete / Reload 类高危：
script_create/script_create_batch/script_replace/script_append/script_rename/script_move/script_delete均标MayTriggerReload = true+RiskLevel = "high"（落盘 .cs 必然触发 Domain Reload），script_delete另标SkillOperation.Delete—— 这些 skill 被IsForbiddenInSemi静态拦截，在 Approval 和 Auto 下都返MODE_FORBIDDEN，仅 Bypass 或 Allowlist 命中可执行，不要尝试 grant 流程。
DO NOT (common hallucinations):
script_edit/script_updatedo not exist → usescript_replacefor find-and-replacescript_writedoes not exist → usescript_create(new file) orscript_replace(modify existing)scriptNameparameter must NOT include.csextension- Templates only accept: MonoBehaviour, ScriptableObject, Editor, EditorWindow
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.
- yesterday First seen · 277 lines · 11 tokens per session scan A e59755fc6acb
unity-script is a skill published in the GitHub repository Besty0728/Unity-Skills (1,707 stars, last pushed today), licensed MIT. It adds 11 tokens to every session and 3,285 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.
Other skills, from other repositories
stage-tamagotchi-godot-csharp
Apply engine-local C# development method and code style only when working in engines/stage-tamagotchi-godot, including its .cs files, .csproj, engine-local .editorconfig, and Godot-specific C# structure decisions. Do not use for TypeScript, Electron, renderer code, shared workspace config, repo-wide C# conventions, or…
reflection-method-call
Call a C# method by reflection — including private methods. Requires a method schema obtained via 'reflection-method-find'. Supports static methods, instance methods (with optional target deserialization), and main-thread / off-thread execution.
script-execute
Compiles and executes C# code dynamically using Roslyn. Supports a full-code mode (default) and a body-only mode — see the skill body for the difference and for how to pass Unity object references as parameters.
reflection-method-find
Find C# methods across every loaded assembly by name / type / parameters — including private methods. Returns serialized MethodData entries usable as schemas for 'reflection-method-call'.
unity-version-split
Split a C# file into Unity 6.5+ and pre-Unity 6.5 variants. Use when a file needs different implementations for different Unity versions due to API changes (e.g., EntityId vs int, GetEntityId vs GetInstanceID).
script-delete
Delete one or more .cs script files from disk, refresh the AssetDatabase, and wait for Unity compilation to settle before delivering the final result via the request's requestId. Pair with 'script-read' to inspect files before deletion.