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+# Skin Creation Workflow
+
+How to author a new character skin and register it in the in-game shop.
+
+## 1. Create the Skin Material
+
+Use the in-editor tool to build a color-maskable 3D material for a new character skin.
+
+- Open the **Skin Shader Generator**: `res://scenes/tools/skin_shader_generator.tscn`
+- Run the scene (F6).
+- Import your base albedo and mask textures.
+- Use the UI to visualize UV overlays and adjust color channels (Red, Green, Blue, Alpha masks).
+- Export the configured material as a `.tres` file into `assets/materials/skins/`.
+
+## 2. Add the Skin to the Shop
+
+Update the game's catalog. The editor tool rewrites both the local script and the server-side module in one click.
+
+- Open the **Skin Catalog Editor**: `res://scenes/tools/skin_catalog_editor.tscn`
+- Press **F6** (or Right-click → Run Current Scene).
+- Click **"＋ New Skin"** and fill in:
+  - **ID**
+  - **Name**
+  - **Category**
+  - **Price** (Gold / Stars)
+  - The `.tres` material path exported in step 1.
+- Click **"💾 Save & Generate"**. This rewrites:
+  - `res://scripts/managers/skin_manager.gd` (local catalog)
+  - `res://server/nakama/tekton_admin.js` (server-side shop logic)
+
+## Flow
+
+```mermaid
+flowchart TD
+    subgraph phase1 [Skin Material Creation]
+        A[Albedo & Mask Textures] --> B{Skin Shader Generator}
+        B -->|Export| C[material.tres]
+    end
+
+    subgraph phase2 [Catalog Definition]
+        C --> D{Skin Catalog Editor}
+        D -->|Save & Generate| E[tekton_admin.js]
+        D -->|Save & Generate| F[skin_manager.gd]
+    end
+
+    subgraph phase3 [Shop Backend]
+        E -->|SSH & nano| G[VPS: ~/tekton_admin.js]
+        G -->|docker cp| H[Nakama Container]
+        H -->|Restart| I[Live Shop Logic Sync]
+    end
+
+    subgraph phase4 [Asset Delivery]
+        C --> J[Git Push]
+        F --> J
+        J -->|CI/CD| K[patch.pck]
+        K -->|Auto Download| L[Player Client Assets]
+    end
+```
+
+After step 2, follow the [Nakama Deployment](./Nakama-Deployment) page to sync the backend, then the [Patch Release Workflow](./Patch-Release-Workflow) page to ship the assets.