diff --git a/README.md b/README.md
index 51976ee97..a430c0cba 100644
--- a/README.md
+++ b/README.md
@@ -201,6 +201,7 @@ Install extensions when need more tools or [create your own tools](#add-custom-t
 | **[AI Cinemachine](https://github.com/IvanMurzak/Unity-AI-Cinemachine/)** | MCP Tools for Cinemachine |
 | **[AI ParticleSystem](https://github.com/IvanMurzak/Unity-AI-ParticleSystem/)** | Set of additional tools for Unity Particle System |
 | **[AI ProBuilder](https://github.com/IvanMurzak/Unity-AI-ProBuilder/)** | Set of additional tools for Unity ProBuilder |
+| **[AI Splines](https://github.com/IvanMurzak/Unity-AI-Splines/)** | MCP Tools for Unity Splines |
 
 ![AI Game Developer — Unity SKILLS and MCP](https://github.com/IvanMurzak/Unity-MCP/blob/main/docs/img/promo/hazzard-divider.svg?raw=true)
 
diff --git a/Unity-MCP-Plugin/Packages/com.ivanmurzak.unity.mcp/Editor/Scripts/UI/Window/MainWindowEditor.Extensions.cs b/Unity-MCP-Plugin/Packages/com.ivanmurzak.unity.mcp/Editor/Scripts/UI/Window/MainWindowEditor.Extensions.cs
index aea769dab..bd399a676 100644
--- a/Unity-MCP-Plugin/Packages/com.ivanmurzak.unity.mcp/Editor/Scripts/UI/Window/MainWindowEditor.Extensions.cs
+++ b/Unity-MCP-Plugin/Packages/com.ivanmurzak.unity.mcp/Editor/Scripts/UI/Window/MainWindowEditor.Extensions.cs
@@ -77,6 +77,21 @@ public partial class MainWindowEditor
                     ("probuilder-set-face-material", "Assign materials to individual faces"),
                 }
             ),
+            new(
+                name:        "Splines",
+                description: "AI-assisted Spline authoring: containers, knots, tangents, and evaluation.",
+                packageId:   "com.ivanmurzak.unity.mcp.splines",
+                gitUrl:      "https://github.com/IvanMurzak/Unity-AI-Splines.git",
+                tools: new[]
+                {
+                    ("splines-container-create", "Create a SplineContainer in the scene"),
+                    ("splines-add-knot",         "Append a knot to a spline"),
+                    ("splines-set-knot",         "Set a knot's position, tangents, and rotation"),
+                    ("splines-set-tangent-mode", "Set a knot's tangent mode"),
+                    ("splines-evaluate",         "Evaluate position/tangent/up along a spline"),
+                    ("splines-modify",           "Modify any Splines component via ReflectorNet"),
+                }
+            ),
         };
 
         private void SetupExtensionsSection(VisualElement root)
diff --git a/docs/README.es.md b/docs/README.es.md
index 889f4f7ca..f9d61077a 100644
--- a/docs/README.es.md
+++ b/docs/README.es.md
@@ -201,6 +201,7 @@ Instala extensiones cuando necesites más herramientas o [crea tus propias herra
 | **[AI Cinemachine](https://github.com/IvanMurzak/Unity-AI-Cinemachine/)** | Herramientas MCP para Cinemachine |
 | **[AI ParticleSystem](https://github.com/IvanMurzak/Unity-AI-ParticleSystem/)** | Conjunto de herramientas adicionales para el sistema de partículas de Unity |
 | **[AI ProBuilder](https://github.com/IvanMurzak/Unity-AI-ProBuilder/)** | Conjunto de herramientas adicionales para Unity ProBuilder |
+| **[AI Splines](https://github.com/IvanMurzak/Unity-AI-Splines/)** | Herramientas MCP para Unity Splines |
 
 ![AI Game Developer — Unity SKILLS and MCP](https://github.com/IvanMurzak/Unity-MCP/blob/main/docs/img/promo/hazzard-divider.svg?raw=true)
 
diff --git a/docs/README.ja.md b/docs/README.ja.md
index a7d9a2cb6..416e2a35b 100644
--- a/docs/README.ja.md
+++ b/docs/README.ja.md
@@ -201,6 +201,7 @@ unity-mcp-cli open ./MyUnityProject
 | **[AI Cinemachine](https://github.com/IvanMurzak/Unity-AI-Cinemachine/)** | Cinemachine 用の MCP ツール |
 | **[AI ParticleSystem](https://github.com/IvanMurzak/Unity-AI-ParticleSystem/)** | Unity パーティクルシステム用の追加ツールセット |
 | **[AI ProBuilder](https://github.com/IvanMurzak/Unity-AI-ProBuilder/)** | Unity ProBuilder 用の追加ツールセット |
+| **[AI Splines](https://github.com/IvanMurzak/Unity-AI-Splines/)** | Unity Splines 用の MCP ツール |
 
 ![AI Game Developer — Unity SKILLS and MCP](https://github.com/IvanMurzak/Unity-MCP/blob/main/docs/img/promo/hazzard-divider.svg?raw=true)
 
diff --git a/docs/README.zh-CN.md b/docs/README.zh-CN.md
index 24057b3f2..1e08af09f 100644
--- a/docs/README.zh-CN.md
+++ b/docs/README.zh-CN.md
@@ -201,6 +201,7 @@ unity-mcp-cli open ./MyUnityProject
 | **[AI Cinemachine](https://github.com/IvanMurzak/Unity-AI-Cinemachine/)** | 用于 Cinemachine 的 MCP 工具 |
 | **[AI ParticleSystem](https://github.com/IvanMurzak/Unity-AI-ParticleSystem/)** | Unity 粒子系统附加工具集 |
 | **[AI ProBuilder](https://github.com/IvanMurzak/Unity-AI-ProBuilder/)** | Unity ProBuilder 附加工具集 |
+| **[AI Splines](https://github.com/IvanMurzak/Unity-AI-Splines/)** | 用于 Unity Splines 的 MCP 工具 |
 
 ![AI 游戏开发者 — Unity SKILLS 和 MCP](https://github.com/IvanMurzak/Unity-MCP/blob/main/docs/img/promo/hazzard-divider.svg?raw=true)