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Unity Development Skill · a5c-ai | DecimalAI

codingby a5c-ai

Unity Development Skill

a5c-ai/unity-development

Source a5c-ai/babysitter ↗License MIT

Unity Engine integration skill for project setup, C# scripting, scene management, prefab creation, and editor automation. Enables LLMs to interact with Unity Editor through MCP servers for asset manipulation, script generation, and automated workflows.

SkillScore100Maintained

Automatic

Coding pack

Last verified 8/29/2026

What it changes

Passed 23 of 23 test cases with the skill, and 17 of 23 without it.

Without skill74%

With skill100%

Checks it passed that the model alone missed

Names the tool unity_run_tests.
Names the tool unity_import_asset.
Emits health updates using UnityEvent.

and 5 more in the full report

6 fixed17 passed either way0 still failing0 broke

Pass-rate lift: +26 pp
Tokens: +80%
Agent turns: 0%
Response time: -16%

Model gemini-3.6-flashMeasured 8/29/2026v123 of 23 cases passed with skill

Tokens, turns and time describe resource use, not a dollar price.

Use this skill

Save it into your project's skills folder. Claude Code picks it up in its next session.

curl -fsSL --create-dirs -o .claude/skills/a5c-ai-unity-development/SKILL.md https://app.decimal.ai/s/a5c-ai-unity-development/SKILL.md

Want it pinned and updatable? pip install "decimalai>=0.15", then decimalai skills add a5c-ai-unity-development, and start Claude Code with claude --plugin-dir "$(git rev-parse --show-toplevel)/.agents"

1 · One-time — install the CLI (docs ↗)

pip install "decimalai>=0.15"

2 · Get the skill — writes .agents/skills/a5c-ai-unity-development/ and pins it in .decimal/skills.lock

decimalai skills add a5c-ai-unity-development

No CLI? Get the same file — curl · raw file

curl -fsSL --create-dirs -o .claude/skills/a5c-ai-unity-development/SKILL.md https://app.decimal.ai/s/a5c-ai-unity-development/SKILL.md

Raw file: /s/a5c-ai-unity-development/SKILL.md ↗ · machine-readable summary at /s/a5c-ai-unity-development.json ↗

Safety checks: 3 of 3 passed

Code scan CleanIntent PassedContent Clean

See it in action

One of 6 test cases the skill fixed. Same model, same prompt, with and without the skill.

1 of 6

Prompt

Name the specific MCP tool used to import external assets like 3D models or textures into a Unity project and configure their import settings via MCP.

What was checked, without and with the skill
Checked	Without skill	With skill
Names the tool unity_import_asset.	Missed	Passed

case-16 · gemini-3.6-flash · 8/29/2026 · answers are capped and redacted

What's inside

The instructions your model reads when the skill loads.

SKILL.md287 linessingle file

Unity Development Skill

Comprehensive Unity Engine development integration for AI-assisted game creation, editor automation, and project management.

Overview

This skill provides capabilities for interacting with Unity projects, including C# scripting, scene manipulation, prefab management, and build automation. It leverages the Unity MCP ecosystem for direct editor integration when available.

Capabilities

Project Management

Create and configure Unity projects
Manage project settings (Player Settings, Quality Settings, etc.)
Configure package dependencies via Package Manager
Set up Assembly Definitions for code organization

C# Scripting

Generate MonoBehaviour scripts with proper lifecycle methods
Create ScriptableObjects for data-driven design
Implement interfaces (ISerializationCallbackReceiver, etc.)
Write custom Editor scripts and PropertyDrawers
Generate unit tests using Unity Test Framework

Scene Management

Create and modify scenes programmatically
Instantiate and configure GameObjects
Set up scene hierarchies and parent/child relationships
Configure lighting, cameras, and post-processing

Prefab System

Create and modify prefab assets
Handle prefab variants and overrides
Generate prefab instances with modifications
Manage nested prefabs

Asset Pipeline

Import and configure assets (textures, models, audio)
Set up asset bundles and addressables
Configure import settings for optimization
Generate placeholder assets

Track record

Benchmark

23 / 23

test cases passed, vs 17 / 23 without

Adoption

Users: 0
Times used: 0

Safety and source details

SkillSafety

✓ 3 of 3 passed

Code scan15 of 15 checks clean

0 critical · 0 warning · 0 info — scanner v4 — 8/10/2026

View 15 scanner checks

live_secretremote_code_executionreverse_shelldata_exfiltrationssrf_metadataagent_snoopinganti_refusaldestructive_commandsobfuscated_unicodeunicode_homoglyphopaque_blobsuspicious_urltool_overreachtrigger_abuseprompt_injection_phrasing

IntentSafe

LLM judge · does the skill do what it claims

ContentClean

LLM judge · policy & harmful-content review

Source

Imported

a5c-ai / babysitter

library/specializations/game-development/skills/unity-development/SKILL.md

View on GitHub ↗

License MITImported 8/10/2026Version v1

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See it in action

What's inside

Unity Development Skill

Overview

Capabilities

Project Management

C# Scripting

Scene Management

Prefab System

Asset Pipeline

Track record

Benchmark

Adoption

SkillSafety

Source

Other skills for the same job

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