# Send Best Image Generation to your agent
Hand the extracted package to your coding agent with a concrete install brief instead of figuring it out manually.
## Fast path
- Download the package from Yavira.
- Extract it into a folder your agent can access.
- Paste one of the prompts below and point your agent at the extracted folder.
## Suggested prompts
### New install

```text
I downloaded a skill package from Yavira. Read SKILL.md from the extracted folder and install it by following the included instructions. Tell me what you changed and call out any manual steps you could not complete.
```
### Upgrade existing

```text
I downloaded an updated skill package from Yavira. Read SKILL.md from the extracted folder, compare it with my current installation, and upgrade it while preserving any custom configuration unless the package docs explicitly say otherwise. Summarize what changed and any follow-up checks I should run.
```
## Machine-readable fields
```json
{
  "schemaVersion": "1.0",
  "item": {
    "slug": "best-image-generation",
    "name": "Best Image Generation",
    "source": "tencent",
    "type": "skill",
    "category": "开发工具",
    "sourceUrl": "https://clawhub.ai/EvoLinkAI/best-image-generation",
    "canonicalUrl": "https://clawhub.ai/EvoLinkAI/best-image-generation",
    "targetPlatform": "OpenClaw"
  },
  "install": {
    "downloadUrl": "/downloads/best-image-generation",
    "sourceDownloadUrl": "https://wry-manatee-359.convex.site/api/v1/download?slug=best-image-generation",
    "sourcePlatform": "tencent",
    "targetPlatform": "OpenClaw",
    "packageFormat": "ZIP package",
    "primaryDoc": "SKILL.md",
    "includedAssets": [
      "SKILL.md",
      "references/curl_heredoc.md",
      "references/powershell.md",
      "references/python.md"
    ],
    "downloadMode": "redirect",
    "sourceHealth": {
      "source": "tencent",
      "slug": "best-image-generation",
      "status": "healthy",
      "reason": "direct_download_ok",
      "recommendedAction": "download",
      "checkedAt": "2026-04-30T12:23:39.477Z",
      "expiresAt": "2026-05-07T12:23:39.477Z",
      "httpStatus": 200,
      "finalUrl": "https://wry-manatee-359.convex.site/api/v1/download?slug=best-image-generation",
      "contentType": "application/zip",
      "probeMethod": "head",
      "details": {
        "probeUrl": "https://wry-manatee-359.convex.site/api/v1/download?slug=best-image-generation",
        "contentDisposition": "attachment; filename=\"best-image-generation-1.0.2.zip\"",
        "redirectLocation": null,
        "bodySnippet": null,
        "slug": "best-image-generation"
      },
      "scope": "item",
      "summary": "Item download looks usable.",
      "detail": "Yavira can redirect you to the upstream package for this item.",
      "primaryActionLabel": "Download for OpenClaw",
      "primaryActionHref": "/downloads/best-image-generation"
    },
    "validation": {
      "installChecklist": [
        "Use the Yavira download entry.",
        "Review SKILL.md after the package is downloaded.",
        "Confirm the extracted package contains the expected setup assets."
      ],
      "postInstallChecks": [
        "Confirm the extracted package includes the expected docs or setup files.",
        "Validate the skill or prompts are available in your target agent workspace.",
        "Capture any manual follow-up steps the agent could not complete."
      ]
    }
  },
  "links": {
    "detailUrl": "https://openagent3.xyz/skills/best-image-generation",
    "downloadUrl": "https://openagent3.xyz/downloads/best-image-generation",
    "agentUrl": "https://openagent3.xyz/skills/best-image-generation/agent",
    "manifestUrl": "https://openagent3.xyz/skills/best-image-generation/agent.json",
    "briefUrl": "https://openagent3.xyz/skills/best-image-generation/agent.md"
  }
}
```
## Documentation

### 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}

### 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>"]
}

ParameterValuessizeauto, 1:1, 2:3, 3:2, 3:4, 4:3, 4:5, 5:4, 9:16, 16:9, 21:9quality1K, 2K (default), 4K (extra cost)image_urlsup 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

PlatformFilePython (all platforms, zero deps){baseDir}/references/python.mdPowerShell 5.1+ (Windows){baseDir}/references/powershell.mdcurl + 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.

For image-to-image or editing, the user provides image URLs alongside the prompt.

### Notes

Print MEDIA:<path> for OC auto-attach — no extra delivery logic needed.
Image saved locally (format auto-detected from URL: png/jpg/webp). URL expires ~24h but local file persists.
quality: 4K incurs additional charges.
image_urls accepts up to 10 URLs (each ≤10MB, formats: jpeg/jpg/png/webp).
## Trust
- Source: tencent
- Verification: Indexed source record
- Publisher: EvoLinkAI
- Version: 1.0.2
## Source health
- Status: healthy
- Item download looks usable.
- Yavira can redirect you to the upstream package for this item.
- Health scope: item
- Reason: direct_download_ok
- Checked at: 2026-04-30T12:23:39.477Z
- Expires at: 2026-05-07T12:23:39.477Z
- Recommended action: Download for OpenClaw
## Links
- [Detail page](https://openagent3.xyz/skills/best-image-generation)
- [Send to Agent page](https://openagent3.xyz/skills/best-image-generation/agent)
- [JSON manifest](https://openagent3.xyz/skills/best-image-generation/agent.json)
- [Markdown brief](https://openagent3.xyz/skills/best-image-generation/agent.md)
- [Download page](https://openagent3.xyz/downloads/best-image-generation)