Build Custom Unity MCP Tools for Coding Agents @git-amend
Build Custom Unity MCP Tools for Coding Agents  @git-amend
Uploaded June 2026 | Updated September 2026, 2 hours ago
Learn how to supercharge AI coding assistants like Cursor by teaching them your exact Unity editor workflows. In this step-by-step tutorial we start with Unity’s official MCP bridge, and create a full discoverable [McpTool] with parameters, validation, and structured responses. We also compare the official approach with Unity MCP Pro. Perfect for technical artists, Unity developers, and anyone who wants their AI to actually understand and execute project-specific tasks instead of just writing code.

Use AI Assistant v2.6.0-pre.1 if you don't want a subscription, otherwise sign up for FREE Unity AI Trial: unity.com/features/ai
Docs: docs.unity3d.com/Packages/com.unity.ai.assistant@2.13/manual/integration/unity-mcp-get-started.html
MCP for Unity Pro - y1uda.itch.io/unity-mcp-pro

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β–¬ Contents of this video β–¬β–¬β–¬β–¬β–¬β–¬β–¬β–¬β–¬β–¬

0:00 Install AI Assistant
2:21 Tool Basics
6:56 Params and Response

*Source code:* gist.github.com/adammyhre/df4a1d98b131b1ef4df30a787a532e40

More Useful Code:
github.com/adammyhre?tab=repositories
Unity Utility Library: github.com/adammyhre/Unity-Utils
Lock Inspector Hotkey: gist.github.com/adammyhre/4754f731a93bf1cab0d1385ccfa23642

*Other Recommended Tools* _(Affiliate Links)_
Phantom Navigator - assetstore.unity.com/packages/tools/utilities/phantom-navigator-371346?aid=1101lw3sv
Ultimate Preview - assetstore.unity.com/packages/tools/utilities/ultimate-preview-bundle-340976?aid=1101lw3sv
Mouse Shortcuts - assetstore.unity.com/packages/tools/utilities/mouse-button-shortcuts-and-selection-history-228013?aid=1101lw3sv
Init(args) - assetstore.unity.com/packages/tools/utilities/init-args-200530?aid=1101lw3sv
Wingman - assetstore.unity.com/packages/tools/utilities/wingman-your-inspector-s-best-friend-303181?aid=1101lw3sv
Favorites Window - assetstore.unity.com/packages/tools/utilities/favorites-window-123487?aid=1101lw3sv
Scene Notes - assetstore.unity.com/publishers/87819?aid=1101lw3sv
Beautify - assetstore.unity.com/packages/vfx/shaders/fullscreen-camera-effects/beautify-3-advanced-post-processing-233073?aid=1101lw3sv
Odin - assetstore.unity.com/packages/tools/utilities/odin-inspector-and-serializer-89041?aid=1101lw3sv?aid=1101lw3sv
Odin Validator - assetstore.unity.com/packages/tools/utilities/odin-validator-227861?aid=1101lw3sv
Hot Reload: assetstore.unity.com/packages/tools/utilities/hot-reload-edit-code-without-compiling-254358?aid=1101lw3sv
Better Hierarchy: assetstore.unity.com/packages/tools/utilities/better-hierarchy-272963?aid=1101lw3sv
Better Transform: assetstore.unity.com/packages/tools/utilities/better-transform-size-notes-global-local-workspace-parent-child--321300?aid=1101lw3sv
Better Mesh Filter: assetstore.unity.com/packages/tools/utilities/better-mesh-mesh-preview-full-insight-at-a-glance-321364?aid=1101lw3sv
Editor Console Pro: assetstore.unity.com/packages/tools/utilities/editor-console-pro-11889?aid=1101lw3sv
Any Object Finder: assetstore.unity.com/packages/tools/utilities/any-object-finder-286455?aid=1101lw3sv
Kybernetic Tools: assetstore.unity.com/publishers/16747?aid=1101lw3sv
Sisus Tools: assetstore.unity.com/publishers/41398?aid=1101lw3sv
Prime Tween - assetstore.unity.com/packages/tools/animation/primetween-high-performance-animations-and-sequences-252960?aid=1101lw3s
Rabbit Logger - assetstore.unity.com/packages/tools/utilities/rabbit-logger-305396?aid=1101lw3s

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Build Custom Unity MCP Tools for Coding Agents

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