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code-writing-guide

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更新日2026年7月5日 18:40

Provides coding guidelines for Unity projects. Make sure to use this skill whenever writing, creating, editing, or modifying code files. This includes implementing new features, fixing bugs, refactoring, adding tests, or any task that results in code changes. Even for small edits or one-line fixes, load this skill to ensure project conventions are followed.

インストール

Codex または Claude でインストールこの Prompt をコピーして Codex、Claude、または他のアシスタントに貼り付けると、Skill ページを確認してインストールできます。

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nowsprinting

nowsprinting/unity-coding-skills

GitHub リポジトリを開く Creator のリポジトリを見る

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Rules

Before modifying any code file, check if the editor is in Play Mode. If it is, stop it using the unity_play_control tool first — Play Mode may skip recompilation, leaving stale code active.
Never create .meta files. Unity editor creates them automatically.
When editing (creating or modifying) scene (.unity) or prefab (.prefab) files, use the edit-scene skill.
When instantiating a prefab multiple times, give each instance a unique GameObject.name; otherwise, automated tests cannot identify a specific instance. Use a concrete name (e.g., "<PrefabName>(Hero)") or append an index (e.g., "<PrefabName>(0)").

Resources

Read the appropriate resource file based on the situation:

Before writing or modifying any code file: Read ${CLAUDE_SKILL_DIR}/resources/coding-guideline.md
Before writing or modifying any code file: Read ${CLAUDE_SKILL_DIR}/resources/unity-modern-guidelines.md
Before writing or modifying MonoBehaviour lifecycle or event-handling methods (Awake, Start, OnEnable, OnDisable, OnDestroy, Update, FixedUpdate, LateUpdate, OnCollision*, OnTrigger*, OnGUI, OnMouse*, OnBecame*, OnPreCull, OnPreRender, OnPostRender, OnRenderImage, OnRenderObject, OnWillRenderObject, OnAnimatorMove, OnAnimatorIK, OnDrawGizmos): Read ${CLAUDE_SKILL_DIR}/resources/unity-event-functions.md
Before referencing an API, verifying a package behavior, or looking up documentation: Read ${CLAUDE_SKILL_DIR}/resources/unity-references.md
When resolving diagnostics or handling code review feedback: Read ${CLAUDE_SKILL_DIR}/resources/diagnostics-review-feedback.md

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name	code-writing-guide
description	Provides coding guidelines for Unity projects. Make sure to use this skill whenever writing, creating, editing, or modifying code files. This includes implementing new features, fixing bugs, refactoring, adding tests, or any task that results in code changes. Even for small edits or one-line fixes, load this skill to ensure project conventions are followed.
user-invocable	false
license	Unlicense
metadata	{"author":"Koji Hasegawa"}

Guide for writing code in Unity projects.

Rules

Before modifying any code file, check if the editor is in Play Mode. If it is, stop it using the unity_play_control tool first — Play Mode may skip recompilation, leaving stale code active.
Never create .meta files. Unity editor creates them automatically.
When editing (creating or modifying) scene (.unity) or prefab (.prefab) files, use the edit-scene skill.
When instantiating a prefab multiple times, give each instance a unique GameObject.name; otherwise, automated tests cannot identify a specific instance. Use a concrete name (e.g., "<PrefabName>(Hero)") or append an index (e.g., "<PrefabName>(0)").

Resources

Read the appropriate resource file based on the situation:

Before writing or modifying any code file: Read ${CLAUDE_SKILL_DIR}/resources/coding-guideline.md
Before writing or modifying any code file: Read ${CLAUDE_SKILL_DIR}/resources/unity-modern-guidelines.md
Before writing or modifying MonoBehaviour lifecycle or event-handling methods (Awake, Start, OnEnable, OnDisable, OnDestroy, Update, FixedUpdate, LateUpdate, OnCollision*, OnTrigger*, OnGUI, OnMouse*, OnBecame*, OnPreCull, OnPreRender, OnPostRender, OnRenderImage, OnRenderObject, OnWillRenderObject, OnAnimatorMove, OnAnimatorIK, OnDrawGizmos): Read ${CLAUDE_SKILL_DIR}/resources/unity-event-functions.md
Before referencing an API, verifying a package behavior, or looking up documentation: Read ${CLAUDE_SKILL_DIR}/resources/unity-references.md
When resolving diagnostics or handling code review feedback: Read ${CLAUDE_SKILL_DIR}/resources/diagnostics-review-feedback.md