Openclaw-master-skills AI Image Generation & Editor — Nanobanana, GPT Image, ComfyUI

Generate images from text with multi-provider routing — supports Nanobanana 2, Seedream 5.0, GPT Image, and local ComfyUI workflows. Includes 1,300+ curated prompts and style-aware prompt enhancement. Use when users want to create images, design assets, enhance prompts, or manage AI art workflows.

install

source · Clone the upstream repo

git clone https://github.com/LeoYeAI/openclaw-master-skills

Claude Code · Install into ~/.claude/skills/

T=$(mktemp -d) && git clone --depth=1 https://github.com/LeoYeAI/openclaw-master-skills "$T" && mkdir -p ~/.claude/skills && cp -r "$T/skills/creative-toolkit" ~/.claude/skills/leoyeai-openclaw-master-skills-ai-image-generation-editor-nanobanana-gpt-image-c && rm -rf "$T"

OpenClaw · Install into ~/.openclaw/skills/

T=$(mktemp -d) && git clone --depth=1 https://github.com/LeoYeAI/openclaw-master-skills "$T" && mkdir -p ~/.openclaw/skills && cp -r "$T/skills/creative-toolkit" ~/.openclaw/skills/leoyeai-openclaw-master-skills-ai-image-generation-editor-nanobanana-gpt-image-c && rm -rf "$T"

manifest: skills/creative-toolkit/SKILL.md

Creative Toolkit

Generate professional AI images through a unified interface that routes across multiple providers. Search curated prompts, enhance ideas into production-ready descriptions, and manage local ComfyUI workflows — all from a single MCP server.

Quick Start

Add the MCP server to your mcporter config (

~/.config/mcporter/config.json

{
  "mcpServers": {
    "creative-toolkit": {
      "command": "npx",
      "args": ["-y", "meigen@1.2.5"]
    }
  }
}

Free tools (search, enhance, inspire) work immediately — no API key needed:

mcporter call creative-toolkit.search_gallery query="cyberpunk"
mcporter call creative-toolkit.enhance_prompt brief="a cat in space" style="realistic"

To unlock image generation, configure one of these providers:

Provider Config What you need

MeiGen Cloud

MEIGEN_API_TOKEN

Token from meigen.ai (avatar → Settings → API Keys)

Local ComfyUI

comfyuiUrl

A running ComfyUI instance — no external API needed

Any OpenAI-compatible API

openaiApiKey

openaiBaseUrl

openaiModel

Your own key from Together AI, Fireworks AI, etc.

Set credentials in

~/.clawdbot/.env

~/.config/meigen/config.json

, or add an

"env"

block to the mcporter config above. See

references/providers.md

for details.

Available Tools

Free — no API key required

Tool	What it does
`search_gallery`	Semantic search across 1,300+ AI image prompts. Supports category filtering and curated browsing. Returns prompt text, thumbnails, and metadata.
`get_inspiration`	Get the full prompt and high-res images for any gallery entry. Use after `search_gallery` to get copyable prompts.
`enhance_prompt`	Expand a brief idea into a detailed, style-aware prompt with lighting, composition, and material directions. Supports realistic, anime, and illustration styles.
`list_models`	List all available models across configured providers with capabilities and supported features.

Requires configured provider

Tool	What it does
`generate_image`	Generate an image from a text prompt. Routes to the best available provider. Supports aspect ratio, seed, and reference images.
`upload_reference_image`	Compress a local image (max 2MB, 2048px) and upload to temporary storage (expires in 24 hours) for use as a style reference. Call this MCP tool directly — do NOT construct upload HTTP requests manually. ComfyUI users can skip this — pass local file paths directly to `generate_image` .
`comfyui_workflow`	List, view, import, modify, and delete ComfyUI workflow templates. Adjust steps, CFG scale, sampler, and checkpoint without editing JSON.
`manage_preferences`	Save and load user preferences (default style, aspect ratio, style notes, favorite prompts).

Important Rules

Never describe generated images

You cannot see generated images. After generation, only present the exact data from the tool response:

**Direction 1: Modern Minimal**
- Image URL: https://images.meigen.art/...
- Saved to: ~/Pictures/meigen/2026-02-08_xxxx.jpg

Do NOT write creative commentary about what the image "looks like".

Never specify model or provider

Do NOT pass

model

provider

generate_image

unless the user explicitly asks. The server auto-selects the best available provider and model.

Always confirm before generating multiple images

When the user wants multiple variations, present options first and ask which direction(s) to try. Include an "all of the above" option. Never auto-generate all variants without user confirmation.

Workflow Modes

Mode 1: Single Image

User wants one image. Write a prompt (or call

enhance_prompt

if the description is brief), generate, present URL + path.

Mode 2: Prompt Enhancement + Generation

For brief ideas (under ~30 words, lacking visual details), enhance first:

1. enhance_prompt brief="futuristic city" style="realistic"
   -> Returns detailed prompt with camera lens, lighting, atmospheric effects

2. generate_image prompt="<enhanced prompt>" aspectRatio="16:9"

Mode 3: Parallel Generation (2+ images)

User needs multiple variations — different directions, styles, or concepts.

Plan directions, present as a table
Ask user which direction(s) to try
Write distinct prompts for each — don't just tweak one word
Generate selected directions (max 4 parallel for API providers, 1 at a time for ComfyUI)
Present URLs + paths

Mode 4: Multi-Step Creative (base + extensions)

User wants a base design plus derivatives (e.g., "design a logo and make mockups").

Plan 3-5 directions, ask user which to try
Generate selected direction(s)
Present results, ask user to approve or try another
Plan extensions using the approved Image URL as
```
referenceImages
```
Generate extensions

Never jump from plan to generating everything at once.

Mode 5: Edit/Modify Existing Image

User provides an image and asks for changes (add text, change background, etc.).

Upload the reference image (if local), then generate with a short, literal prompt describing ONLY the edit
The reference image carries all visual context — do NOT re-describe the original image
Example prompt: "Add the text 'meigen.ai' at the bottom of this image"

Mode 6: Inspiration Search

1. search_gallery query="dreamy portrait with soft light"
   -> Finds semantically similar prompts with thumbnails

2. get_inspiration id="<entry_id>"
   -> Get full prompt text — copy and modify for your own generation

Mode 7: Reference Image Generation

Use an existing image to guide visual style. You MUST call the MCP tool directly — do NOT construct HTTP requests manually.

1. upload_reference_image filePath="~/Desktop/my-logo.png"
   -> Compresses and returns a temporary URL (expires in 24 hours)

2. generate_image prompt="coffee mug mockup with this logo" referenceImages=["<url>"]

Reference image sources: gallery URLs, previous generation URLs,

upload_reference_image

for local files. ComfyUI users can pass local file paths directly — no upload needed.

Important: If

upload_reference_image

fails or is unavailable, do NOT attempt to replicate its behavior by calling HTTP endpoints yourself. Instead, tell the user to upload the image manually at meigen.ai and provide the URL, or use the image URL directly if it's already online.

Mode 8: ComfyUI Workflows

1. comfyui_workflow action="list"           -> See saved workflows
2. comfyui_workflow action="view" name="txt2img"  -> See adjustable parameters
3. comfyui_workflow action="modify" name="txt2img" modifications={"steps": 30}
4. generate_image prompt="..." workflow="txt2img"  -> Generate

Alternative Providers

You can use your own OpenAI-compatible API or a local ComfyUI instance instead of — or alongside — the default MeiGen provider. See

references/providers.md

for detailed configuration, model pricing, and provider comparison.

Troubleshooting

See

references/troubleshooting.md

for common issues, solutions, and security & privacy details.