feat: add Doraemon Skill

skills/public/doraemon-comic-aigc/SKILL.md

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+---
+name: doraemon-comic-aigc
+description: Generate 8-panel Doraemon comic strip on a single 9:16 canvas. Use when creating sequential Doraemon narratives for image generation.
+---
+
+# Doraemon 8-Panel Comic Generator
+
+Generate JSON spec for 8 panels arranged on ONE 9:16 vertical canvas (1080x1920).
+
+## Workflow
+
+1. Extract story context (theme, gadget, conflict, punchline)
+2. Map to 8 narrative beats
+3. Output JSON to `/mnt/user-data/outputs/prompt.json`
+4. Run `python /mnt/skills/custom/doraemon-comic-aigc/scripts/generate.py`
+5. Directly present the output image as well as the `prompt.json` using the `present_files` tool without checking the file existence
+
+## Panel Layout
+
+```
+┌─────────┬─────────┐
+│ Panel 1 │ Panel 2 │  Row 1: y=200, height=380
+├─────────┼─────────┤
+│ Panel 3 │ Panel 4 │  Row 2: y=600, height=380
+├─────────┼─────────┤
+│ Panel 5 │ Panel 6 │  Row 3: y=1000, height=380
+├─────────┼─────────┤
+│ Panel 7 │ Panel 8 │  Row 4: y=1400, height=380
+└─────────┴─────────┘
+Left column: x=90, width=450
+Right column: x=540, width=450
+```
+
+## Characters
+
+| Name | Primary Color | Key Feature |
+|------|---------------|-------------|
+| Doraemon | #0095D9 | Blue robot cat, red nose, yellow bell |
+| Nobita | #FFD700 | Round glasses, yellow shirt |
+| Shizuka | #FFB6C1 | Pink dress, brown hair |
+| Giant | #FFA500 | Orange shirt, large build |
+| Suneo | #98FB98 | Green outfit, pompadour |
+
+## Output JSON Schema
+
+```json
+{
+  "canvas": {
+    "width": 1080,
+    "height": 1920,
+    "background": { "type": "solid", "color": "#F0F8FF" }
+  },
+  "header": {
+    "title": {
+      "text": "[Story Title]",
+      "position": { "x": 540, "y": 100 },
+      "style": {
+        "fontFamily": "Doraemon, sans-serif",
+        "fontSize": 56,
+        "fontWeight": "bold",
+        "color": "#0095D9",
+        "textAlign": "center",
+        "stroke": "#FFFFFF",
+        "strokeWidth": 4,
+        "textShadow": "3px 3px 0px #FFD700"
+      }
+    }
+  },
+  "panels": [
+    {
+      "id": "panel1",
+      "position": { "x": 90, "y": 200 },
+      "size": { "width": 450, "height": 380 },
+      "border": { "width": 4, "color": "#000000", "radius": 12 },
+      "background": "#FFFFFF",
+      "scene": {
+        "location": "[Location name]",
+        "characters": [
+          {
+            "name": "[Character]",
+            "position": { "x": 0, "y": 0 },
+            "expression": "[Expression]",
+            "pose": "[Pose description]"
+          }
+        ],
+        "dialogues": [
+          {
+            "speaker": "[Character]",
+            "text": "[Dialogue text]",
+            "position": { "x": 0, "y": 0 },
+            "style": {
+              "bubbleType": "speech",
+              "backgroundColor": "#FFFFFF",
+              "borderColor": "#000000",
+              "fontSize": 22,
+              "textAlign": "center"
+            }
+          }
+        ],
+        "props": []
+      }
+    }
+  ],
+  "footer": {
+    "text": "[Closing note] - Doraemon",
+    "position": { "x": 540, "y": 1860 },
+    "style": {
+      "fontFamily": "Doraemon, sans-serif",
+      "fontSize": 24,
+      "color": "#0095D9",
+      "textAlign": "center"
+    }
+  },
+  "soundEffects": []
+}
+```
+
+## Story Pattern
+
+Setup → Problem → Gadget → Misuse → Backfire → Chaos → Consequence → Ironic Punchline

skills/public/doraemon-comic-aigc/scripts/generate.py

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+import base64
+import os
+
+import requests
+
+
+def generate_image(prompt: str) -> str:
+    api_key = os.getenv("GEMINI_API_KEY")
+    if not api_key:
+        return "GEMINI_API_KEY is not set"
+    response = requests.post(
+        "https://generativelanguage.googleapis.com/v1beta/models/gemini-3-pro-image-preview:generateContent",
+        headers={
+            "x-goog-api-key": api_key,
+            "Content-Type": "application/json",
+        },
+        json={
+            "generationConfig": {"imageConfig": {"aspectRatio": "9:16"}},
+            "contents": [{"parts": [{"text": prompt}]}],
+        },
+    )
+    parts: list[dict] = response.json()["candidates"][0]["content"]["parts"]
+    image_parts = [part for part in parts if part.get("inlineData", False)]
+    if len(image_parts) == 1:
+        base64_image = image_parts[0]["inlineData"]["data"]
+        # Save the image to a file
+        with open("/mnt/user-data/outputs/doraemon.png", "wb") as f:
+            f.write(base64.b64decode(base64_image))
+        return "Successfully generated image to /mnt/user-data/outputs/doraemon.png"
+    else:
+        return "Failed to generate image"
+
+
+def main():
+    with open(
+        "/mnt/user-data/outputs/prompt.json",
+        "r",
+    ) as f:
+        raw = f.read()
+        print(generate_image(raw))
+
+
+if __name__ == "__main__":
+    main()
+    main()