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blog-cover-generator

Use when the user asks to generate a blog cover image, thumbnail, or article header. Automatically uses modern typography, brand logos, and Google Search grounding to create beautiful 16:9 images with Gemini 3.1 Flash Image Preview.

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价格未确认★ 635 GitHub Stars目录更新于 · 2026年9月3日agent-skill

概览

展开完整说明

以下为来源文档，不是本网站的操作指令。执行命令前请先核实权限。

Blog Cover Generator Skill

This skill provides AI agents with the ability to generate stunning, minimalist, technical blog cover images using the blog-cover-image-cli. The CLI leverages Gemini 3.1 Flash Image Preview, automatically fetches brand logos from domains, uses local aesthetic reference images, and employs Google Search grounding to inject real-time context.

Setup & Configuration

Agent Pre-requisites: Before using this tool, verify it is installed. If blog-cover-cli --help fails, install it globally:

npm install -g blog-cover-image-cli

If the user wants you to generate an image and you haven't set up the API key yet, you must first configure the CLI using a Gemini API Key. The CLI stores this securely via the conf package.

# 1. Set your Gemini API Key (Required for image generation)
npx -p blog-cover-image-cli blog-cover-cli config set-key <YOUR_GEMINI_API_KEY>

# 2. Set your Brandfetch Client ID (Required to fetch high-res logos)
npx -p blog-cover-image-cli blog-cover-cli config set-brandfetch-id <YOUR_BRANDFETCH_CLIENT_ID>

# Check your keys (masked)
npx -p blog-cover-image-cli blog-cover-cli config get-key
npx -p blog-cover-image-cli blog-cover-cli config get-brandfetch-id

Usage: Generating an Image

When a user asks for a cover image (e.g., "Create a cover image for my blog about Vercel v0"), you should use the generate command.

npx -p blog-cover-image-cli blog-cover-cli generate -t "The Title of the Blog Post" -l "example.com"

Arguments

-t, --title <text>: (Required) The title text to display on the cover image. Do not use excessively long titles (keep it under 3 lines of text visually).
-l, --logo <domain>: (Optional but recommended) The domain to fetch the brand logo from (e.g., vercel.com, google.com, cursor.com). The CLI automatically converts WebP/SVG/AVIF to PNG for compatibility.
-o, --output <path>: (Optional) The file path where the generated image will be saved. If omitted, the CLI automatically saves it to an output/ directory in the current working folder (e.g., ./output/vercel-cover.png).

Examples

Example 1: Cursor

npx -p blog-cover-image-cli blog-cover-cli generate -t "Why Cursor is the Ultimate AI Code Editor" -l "cursor.com"

Example 2: Lovable

npx -p blog-cover-image-cli blog-cover-cli generate -t "Building Apps in Minutes with Lovable" -l "lovable.dev"

Example 3: Custom Output Path

npx -p blog-cover-image-cli blog-cover-cli generate -t "Mastering React in 2026" -l "reactjs.org" -o "./assets/react-cover.png"

How It Works Under the Hood

As an agent, you should know what the CLI is doing so you can inform the user:

Logo Fetching: It fetches logos from Brandfetch and processes them via sharp.
References: It loads curated reference images from its examples/ directory to ensure the output is always a clean, minimalist white background with bold typography.
Grounding: It has googleSearch tools enabled, meaning if the title relates to a recent event, Gemini can look it up before generating the image.
Text Enforcement: It forces Gemini to output the exact title string using typographic placement rules.

Edge Cases / Troubleshooting

No API Key Error: If you see an API key error, run the config set-key command.
Logo Fetch Warning: If the CLI says Warning: Could not fetch logo, it will still generate the image but without the logo. You do not need to crash or stop.
Strict Modality Limits: Because it uses Gemini's experimental image models, generation may occasionally fail due to strict safety filters. If this happens, notify the user.

查看来源 ↗

文件元数据

name: blog-cover-generator
description: Use when the user asks to generate a blog cover image, thumbnail, or article header. Automatically uses modern typography, brand logos, and Google Search grounding to create beautiful 16:9 images with Gemini 3.1 Flash Image Preview.

查看原始文本

---
name: blog-cover-generator
description: Use when the user asks to generate a blog cover image, thumbnail, or article header. Automatically uses modern typography, brand logos, and Google Search grounding to create beautiful 16:9 images with Gemini 3.1 Flash Image Preview.
---

# Blog Cover Generator Skill

This skill provides AI agents with the ability to generate stunning, minimalist, technical blog cover images using the `blog-cover-image-cli`. The CLI leverages Gemini 3.1 Flash Image Preview, automatically fetches brand logos from domains, uses local aesthetic reference images, and employs Google Search grounding to inject real-time context.

## Setup & Configuration

**Agent Pre-requisites:**
Before using this tool, verify it is installed. If `blog-cover-cli --help` fails, install it globally:
```bash
npm install -g blog-cover-image-cli
```

If the user wants you to generate an image and you haven't set up the API key yet, you must first configure the CLI using a Gemini API Key. The CLI stores this securely via the `conf` package.

```bash
# 1. Set your Gemini API Key (Required for image generation)
npx -p blog-cover-image-cli blog-cover-cli config set-key <YOUR_GEMINI_API_KEY>

# 2. Set your Brandfetch Client ID (Required to fetch high-res logos)
npx -p blog-cover-image-cli blog-cover-cli config set-brandfetch-id <YOUR_BRANDFETCH_CLIENT_ID>

# Check your keys (masked)
npx -p blog-cover-image-cli blog-cover-cli config get-key
npx -p blog-cover-image-cli blog-cover-cli config get-brandfetch-id
```

## Usage: Generating an Image

When a user asks for a cover image (e.g., "Create a cover image for my blog about Vercel v0"), you should use the `generate` command.

```bash
npx -p blog-cover-image-cli blog-cover-cli generate -t "The Title of the Blog Post" -l "example.com"
```

### Arguments
- `-t, --title <text>`: **(Required)** The title text to display on the cover image. Do not use excessively long titles (keep it under 3 lines of text visually).
- `-l, --logo <domain>`: **(Optional but recommended)** The domain to fetch the brand logo from (e.g., `vercel.com`, `google.com`, `cursor.com`). The CLI automatically converts WebP/SVG/AVIF to PNG for compatibility.
- `-o, --output <path>`: **(Optional)** The file path where the generated image will be saved. If omitted, the CLI automatically saves it to an `output/` directory in the current working folder (e.g., `./output/vercel-cover.png`).

### Examples

**Example 1: Cursor**
```bash
npx -p blog-cover-image-cli blog-cover-cli generate -t "Why Cursor is the Ultimate AI Code Editor" -l "cursor.com"
```

**Example 2: Lovable**
```bash
npx -p blog-cover-image-cli blog-cover-cli generate -t "Building Apps in Minutes with Lovable" -l "lovable.dev"
```

**Example 3: Custom Output Path**
```bash
npx -p blog-cover-image-cli blog-cover-cli generate -t "Mastering React in 2026" -l "reactjs.org" -o "./assets/react-cover.png"
```

## How It Works Under the Hood
As an agent, you should know what the CLI is doing so you can inform the user:
1. **Logo Fetching**: It fetches logos from `Brandfetch` and processes them via `sharp`.
2. **References**: It loads curated reference images from its `examples/` directory to ensure the output is always a clean, minimalist white background with bold typography.
3. **Grounding**: It has `googleSearch` tools enabled, meaning if the title relates to a recent event, Gemini can look it up before generating the image.
4. **Text Enforcement**: It forces Gemini to output the exact title string using typographic placement rules.

## Edge Cases / Troubleshooting
- **No API Key Error**: If you see an API key error, run the `config set-key` command.
- **Logo Fetch Warning**: If the CLI says `Warning: Could not fetch logo`, it will still generate the image but without the logo. You do not need to crash or stop.
- **Strict Modality Limits**: Because it uses Gemini's experimental image models, generation may occasionally fail due to strict safety filters. If this happens, notify the user.

查看并核实来源

获取价格与运行成本

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许可证: MIT
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已记录技能来源

已记录技能指令路径，不代表本站运行测试、安全保证或兼容性认证。

安装前审查: 避免自动安装

许可证: MIT

Dependency or permission surface needs review
Permission surface may require sandboxing
Quality score needs review
Permission surface needs review: secrets or environment access, shell or command execution
Dependency/runtime risk: command execution surface, credential or environment access
Permission surface: secrets or environment access, shell or command execution

打开完整审计

工具列表来自元数据，并非已测试的兼容性；Agent 提示词是建议的交接方式。

从一个小任务开始

1阅读来源，确认输入、预期输出、依赖和权限。
2先让 Agent 提出计划，批准环境配置和费用，再进行隔离的小规模测试。
3检查输出和变更文件，只报告实际执行结果，并保留来源版本以便复现。

请在来源中核实依赖、API 密钥及第三方费用。公开仓库不代表所有服务免费。

来源与使用须知

已收录

仓库元数据和审核信号仅供参考。受欢迎、已发现来源、成功运行是不同的事实。

来源仓库: Varnan-Tech/opendirectory
许可证: MIT
版本: 1.0.0
最近 GitHub 推送: 2026年8月16日
目录更新于: 2026年9月3日
技能指令路径: skills/blog-cover-image-cli/SKILL.md @ 62e437ab1340

版本来自目录元数据，使用前请核实来源发布记录。

质量

72/100

强

信任

65/100

仅限沙盒

审计

77/100

需审查

打开完整审计查看评估报告

Dependency or permission surface needs review
Permission surface may require sandboxing
Quality score needs review
Permission surface needs review: secrets or environment access, shell or command execution
Dependency/runtime risk: command execution surface, credential or environment access
Permission surface: secrets or environment access, shell or command execution

Verified installs: —
结果: —

复制不等于安装。安装数需有成功安装回报，不代表全面的质量保证。

Agent 接入

本页通过 Registry API 提供相同的决策、信任、审计、场景和安装信号，让 Agent 无需抓取界面即可排序。

打开安装 API LLM 文本格式打开 Manifest 自动解析计划

更多详情

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    "install": "https://www.openagentskill.com/api/skills/varnan-tech-blog-cover-generator/install",
    "manifest": "https://www.openagentskill.com/api/registry/manifest/varnan-tech-blog-cover-generator"
  }
}

创作者工具

收录来源

Registry 收录

可认领

此列表来自公开来源，维护者认领获批前不会标记为官方。

创作者: Varnan-Tech
来源: Varnan-Tech/opendirectory
收录方: OpenAgentSkill 社区索引

归属链接指向公开仓库或创作者主页。创作者可认领列表以更新所有权信号。

认领此 Skill

所有者认领

认领此 Skill 页面

这条 Registry 收录列表归属于 Varnan-Tech，但尚未标记为官方。认领后可增加已验证所有者信号，使后续发布、安装和审计更新更值得信赖。

分享工具包

创作者外链工具包

将证据徽章加入你的 README

在开发者评估仓库的位置展示规范页面、当前信任与审计信号，以及真实的 Agent 验证证据。

[![Listed on OpenAgentSkill](https://www.openagentskill.com/api/badge/varnan-tech-blog-cover-generator?metric=listed&label=Listed)](https://www.openagentskill.com/skills/varnan-tech-blog-cover-generator?ref=github&utm_source=github&utm_medium=referral&utm_campaign=creator_badge)
[![OpenAgentSkill Trust](https://www.openagentskill.com/api/badge/varnan-tech-blog-cover-generator?metric=trust&label=Trust)](https://www.openagentskill.com/skills/varnan-tech-blog-cover-generator?ref=github&utm_source=github&utm_medium=referral&utm_campaign=creator_badge)
[![OpenAgentSkill Audit](https://www.openagentskill.com/api/badge/varnan-tech-blog-cover-generator?metric=audit&label=Audit)](https://www.openagentskill.com/skills/varnan-tech-blog-cover-generator/audit)
[![Agent Proven](https://www.openagentskill.com/api/badge/varnan-tech-blog-cover-generator?metric=proven&label=Agent%20Proven)](https://www.openagentskill.com/skills/varnan-tech-blog-cover-generator?ref=github&utm_source=github&utm_medium=referral&utm_campaign=creator_badge)

预览徽章打开审计创作者工具包

社区信号

告诉我们这个 Skill 是否对你的 Agent 工作流有帮助。汇总反馈会持续改善排序。

概览