OpenClaw

best-image-generation

Best quality AI image generation (~$0.12-0.20/image). Text-to-image, image-to-image, and image editing via the EvoLink API.

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查看来源 ↗安装与使用 SKILL.md ↗

安装与使用

请根据来源仓库和你的 AI 工具说明安装此技能。先阅读技能文件和依赖要求，再添加到工作流。

SkillHub CLI

skillhub install evolinkai/best-image-generation

打开来源仓库，查看说明和兼容环境后，按来源提供的命令或步骤安装。

将来源链接提供给你的 Agent，让它先读取说明、核对依赖，并向你说明将执行的安装步骤。

查看来源 ↗使用指南

技能说明

EvoLink Best Image

Generate and edit images via the EvoLink Nano Banana Pro (gemini-3-pro-image-preview) API.

API Endpoint

Base: https://api.evolink.ai/v1
Submit: POST /images/generations
Poll: GET /tasks/{id}

Step 1 — Submit Task

Text-to-image

{
  "model": "gemini-3-pro-image-preview",
  "prompt": "<USER_PROMPT>",
  "size": "<SIZE>",
  "quality": "<QUALITY>"
}

Image-to-image / editing

{
  "model": "gemini-3-pro-image-preview",
  "prompt": "<USER_PROMPT>",
  "size": "<SIZE>",
  "quality": "<QUALITY>",
  "image_urls": ["<URL1>", "<URL2>"]
}

Parameter	Values
size	auto, 1:1, 2:3, 3:2, 3:4, 4:3, 4:5, 5:4, 9:16, 16:9, 21:9
quality	1K, 2K (default), 4K (extra cost)
image_urls	up to 10 URLs (each ≤10MB, formats: jpeg/jpg/png/webp)

Step 2 — Poll for Result

GET /tasks/{id} — poll every 10 s, up to 72 retries (~12 min).

Wait until status is completed or failed.

Step 3 — Download & Output

Download the URL from results[0]. Auto-detect format from URL (png/jpg/webp). Save as evolink-<TIMESTAMP>.<ext>.

CRITICAL SECURITY: Before passing <OUTPUT_FILE> to shell commands, sanitize it:

Strip all shell metacharacters: tr -cd 'A-Za-z0-9._-'
Ensure valid extension (.png, .jpg, .jpeg, .webp)
Fallback to evolink-<timestamp>.png if empty

Print MEDIA:<absolute_path> for OC auto-attach.

Reference Implementations

Platform	File
Python (all platforms, zero deps)	`{baseDir}/references/python.md`
PowerShell 5.1+ (Windows)	`{baseDir}/references/powershell.md`
curl + bash (Unix/macOS)	`{baseDir}/references/curl_heredoc.md`

API Key

EVOLINK_API_KEY env var (required)
Get key: https://evolink.ai

Triggers

Chinese: "高质量生图：xxx" / "编辑图片：xxx"
English: "best image: xxx" / "edit image: xxx"

Treat the text after the colon as prompt, use default size auto and quality 2K, generate immediately....

来源信息

Source: github
Repository: openclaw/skills
Path: skills/evolinkai/best-image-generation
Version: —
Commit: 2bd1ac2478d0c4257daf4ab2c85076bf001ddabf
分类来源: rules
状态: active
可见性: public

这些信息来自收录时的来源分析，可能滞后；使用前请核对最新来源文件。

来源内容

SKILL.md

# EvoLink Best Image

Generate and edit images via the EvoLink Nano Banana Pro (gemini-3-pro-image-preview) API.

## API Endpoint

- Base: `https://api.evolink.ai/v1`
- Submit: `POST /images/generations`
- Poll: `GET /tasks/{id}`

## Step 1 — Submit Task

### Text-to-image

```json
{
  "model": "gemini-3-pro-image-preview",
  "prompt": "<USER_PROMPT>",
  "size": "<SIZE>",
  "quality": "<QUALITY>"
}
```

### Image-to-image / editing

```json
{
  "model": "gemini-3-pro-image-preview",
  "prompt": "<USER_PROMPT>",
  "size": "<SIZE>",
  "quality": "<QUALITY>",
  "image_urls": ["<URL1>", "<URL2>"]
}
```

| Parameter | Values |
|---|---|
| size | auto, 1:1, 2:3, 3:2, 3:4, 4:3, 4:5, 5:4, 9:16, 16:9, 21:9 |
| quality | 1K, 2K (default), 4K (extra cost) |
| image_urls | up to 10 URLs (each ≤10MB, formats: jpeg/jpg/png/webp) |

## Step 2 — Poll for Result

`GET /tasks/{id}` — poll every 10 s, up to 72 retries (~12 min).

Wait until `status` is `completed` or `failed`.

## Step 3 — Download & Output

Download the URL from `results[0]`. Auto-detect format from URL (png/jpg/webp). Save as `evolink-<TIMESTAMP>.<ext>`.

**CRITICAL SECURITY:** Before passing `<OUTPUT_FILE>` to shell commands, sanitize it:
- Strip all shell metacharacters: `tr -cd 'A-Za-z0-9._-'`
- Ensure valid extension (`.png`, `.jpg`, `.jpeg`, `.webp`)
- Fallback to `evolink-<timestamp>.png` if empty

Print `MEDIA:<absolute_path>` for OC auto-attach.

## Reference Implementations

| Platform | File |
|---|---|
| Python (all platforms, zero deps) | `{baseDir}/references/python.md` |
| PowerShell 5.1+ (Windows) | `{baseDir}/references/powershell.md` |
| curl + bash (Unix/macOS) | `{baseDir}/references/curl_heredoc.md` |

## API Key

- `EVOLINK_API_KEY` env var (required)
- Get key: https://evolink.ai

## Triggers

- Chinese: "高质量生图：xxx" / "编辑图片：xxx"
- English: "best image: xxx" / "edit image: xxx"

Treat the text after the colon as `prompt`, use default size `auto` and quality `2K`, generate immediately....

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