| name | linkfox-multimodal-generate-image |
| description | AI驱动的图片生成与编辑工具，用于制作高质量产品图。当用户要求生成图片、制作图片、编辑照片、文生图、图生图、换背景、变换风格、替换图片中的物体、将产品合成到场景中、换模特、制作任何类型的AI生成视觉内容、AI drawing, image generation, text-to-image, image-to-image, background replacement, style transfer, product image creation, AI image editing时触发此技能。即使用户未明确说"AI图片"，只要其请求涉及生成、修改或变换图片，也应触发此技能。 |
AI Image Generation
This skill guides you on how to generate and edit images using the AI image generation service, helping users create high-quality product images, modify existing images, and perform creative visual transformations.
Core Concepts
The AI Image Generation tool produces new images based on a text prompt and optional reference images. It supports a wide range of use cases:
- Text-to-image: Generate a brand-new image purely from a text description.
- Image-to-image: Provide one or more reference images and a prompt to generate a new image that preserves elements from the references.
- Image editing: Modify specific elements, colors, backgrounds, or styles in an existing image.
- Product compositing: Place a product from one image into a scene from another image.
- Model swapping: Replace the model or mannequin in a product photo.
Reference images are strongly recommended when the user wants the output to closely resemble an existing product or scene. Up to 3 reference image URLs can be provided, separated by commas.
Parameter Guide
| Parameter | Required | Description | Default |
|---|
| prompt | Yes | Text description of the desired image. Supports text-to-image, image-to-image, editing, model swapping, and more. Max 1000 characters. | -- |
| referenceImageUrl | No | URL(s) of reference image(s). Separate multiple URLs with commas. Up to 3 images supported. Max 1000 characters. | -- |
| aspectRatio | No | Aspect ratio of the output image. | 1:1 |
Supported Aspect Ratios
| Value | Description |
|---|
| 1:1 | Square (default) |
| 3:4 | Portrait |
| 4:3 | Landscape |
| 9:16 | Vertical fullscreen |
| 16:9 | Horizontal fullscreen |
Prompt Writing Tips
- Be specific and descriptive: Clearly describe the subject, scene, lighting, style, and mood you want.
- Reference images by number: When using reference images, refer to them as "image 1", "image 2", etc., in the order they appear in
referenceImageUrl.
- State the operation explicitly: Use clear action verbs like "replace", "change", "put", "combine", "generate".
- Keep within 1000 characters: Prompts have a maximum length of 1000 characters.
Prompt Examples by Scenario
Object replacement:
Replace the vase on the table in image 1 with a potted plant
Background color change:
Change the background color of image 1 to pure white
Product compositing:
Place the product from image 2 onto the marble countertop in image 1
Style transfer:
Transform image 1 into the artistic style shown in image 2
Text-to-image (no reference):
A professional product photo of a sleek black wireless headphone on a gradient blue background, studio lighting, 8K quality
Model swapping:
Replace the model in image 1 with a different model while keeping the same clothing and pose
Local Image Upload
This tool requires publicly accessible image URLs for reference images. If the user provides a local image file path (e.g., C:\Users\...\photo.png, /home/.../image.jpg), you must upload it first to obtain a public URL.
Run the upload script:
python scripts/upload_image.py /path/to/local/image.png
The script will return a public URL (valid for 24 hours) that can be used as the reference image URL parameter.
调用方式
- API 端点：
POST /multimodal/generateImage（完整参数/响应/错误码见 references/api.md）
- Python 脚本：
python scripts/multimodal_generate_image.py '<JSON 参数>' [--inline]
- 成本约束：本工具会消耗积分；同一会话同一参数组合默认只调用一次，脚本带 24h 本地缓存。失败/空结果不得自动换关键词、翻页或改邮编连续试探；需要继续检索时先向用户说明会产生额外消耗。
输出策略（脚本默认行为）：
- 始终将完整响应写入
<cwd>/linkfox/<YYYY-MM-DD>/<session>/data/linkfox-multimodal-generate-image-<timestamp>.json（<cwd> 为脚本执行时的工作目录，在 Claude Code 里即当前项目目录；<session> 取自环境变量 SESSION_ID，按用户任务自动聚合；禁止写入 /tmp，当前目录不可写则报错）
- 响应体 ≤ 8 KB：落盘后把完整 JSON 打印到 stdout
- 响应体 > 8 KB：落盘后 stdout 只输出摘要（顶层字段、常见计数如
total/costToken、最大列表字段的长度 + 前 3 条样本）
- 加
--inline 强制全量打印到 stdout（同样落盘）
读数据建议：先看摘要判断是否足够；需要具体字段时优先用 jq或ConvertFrom-Json 从保存的 json 文件按需抽取，避免整份 JSON 进入上下文。
解决认证和积分问题
发生以下异常情况时，采用以下措施来处理：
异常情况
- 未配置API Key：环境变量未配置
LINKFOX_AGENT_API_KEY，也未配置 LINKFOXAGENT_API_KEY。
- 响应401或402状态码
- 响应提示积分或余额不足：消息含"积分余额不足/计费不足/余额不足/quota exceeded/insufficient balance/套餐到期/需充值/请充值"，或类似含义的内容。
措施
Display Rules
- Show the generated image: When the response contains image content in the
text field, display it directly to the user using markdown image syntax.
- Status reporting: Check the
status and finished fields. If image generation is still in progress, inform the user and advise waiting.
- Prompt transparency: Briefly describe what prompt and parameters were sent so the user understands what was requested.
- Aspect ratio confirmation: If the user does not specify dimensions, use the default 1:1 ratio but mention it so they can request a different ratio if needed.
- Reference image guidance: If the user wants a result close to an existing image but did not provide a reference URL, proactively suggest they provide one for better fidelity.
- Error handling: When generation fails, explain the issue based on the response
status field and suggest adjustments (e.g., simplify the prompt, check reference image URLs, try a different aspect ratio).
Important Limitations
- Reference image limit: A maximum of 3 reference image URLs can be provided per request.
- Prompt length: The prompt must not exceed 1000 characters.
- URL validity: Reference image URLs must be publicly accessible. Private or expired URLs will cause failures.
- Aspect ratio options: Only 1:1, 3:4, 4:3, 9:16, and 16:9 are supported.
User Expression & Scenario Quick Reference
Applicable -- Requests involving image generation or editing:
| User Says | Scenario |
|---|
| "Generate an image", "Create a picture" | Text-to-image generation |
| "Edit this photo", "Modify the image" | Image editing |
| "Change the background", "Make it white background" | Background replacement |
| "Put the product on this scene" | Product compositing |
| "Make it look like this style" | Style transfer |
| "Swap the model", "Change the person" | Model swapping |
| "Create a product photo" | Product image generation |
| "Make a vertical/landscape version" | Aspect ratio adjustment |
Not applicable -- Needs beyond image generation:
- Image analysis or recognition (reading text from images, identifying objects)
- Video generation or editing
- Image file format conversion
- Batch processing of hundreds of images
- Image hosting or storage
积分消耗规则
按动态规则计费：消耗积分 = rawTokens × 0.045。
重要：本技能的服务按倍数动态计算，可能一次性消耗大量积分，必须提醒用户，由用户决定是否继续。
Feedback:
Auto-detect and report feedback via the Feedback API when any of the following apply:
- The functionality or purpose described in this skill does not match actual behavior
- The skill's results do not match the user's intent
- The user expresses dissatisfaction or praise about this skill
- Anything you believe could be improved
Call the feedback API as specified in references/api.md. Do not interrupt the user's flow.
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