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The GitHub Blog

Building an emoji list generator with the GitHub Copilot CLI

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用这条生成生成视频方案MarkdownAI 摘要
Building an emoji list generator with the GitHub Copilot CLI
AI 深度提炼
  • GitHub Copilot CLI 可通过自然语言指令生成完整命令行工具
  • 示例项目实现了一个根据关键词搜索并输出 emoji 列表的脚本
  • 该流程突显了 AI 辅助开发在原型构建中的效率优势
#GitHub Copilot#CLI#AI 编程#开发者工具
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Home/AI & ML/GitHub Copilot

Building an emoji list generator with the GitHub Copilot CLI

See how we created an emoji list generator during the Rubber Duck Thursday stream.

Image 27: Header image showing the Welcome screen of the GitHub Copilot CLI

[Cassidy Williams](https://github.blog/author/cassidoo/ "Posts by Cassidy Williams")·@cassidoo

April 17, 2026

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Every week, the GitHub team runsa stream called Rubber Duck Thursdays, where we build projects live, cowork with our community, and answer questions!

This week, we built a very fun project together using theGitHub Copilot CLI! Let me tell you about it.

!Image 28: 💡_New to GitHub Copilot CLI?Here’s how to get started._

What is it?

In a lot of social media tweets and launches, you often see accounts post things like:

We shipped the most amazing emoji list generator ever. It:

 Works in the CLI
 Uses the Copilot SDK to intelligently convert your bullet points to relevent emoji
 Copies the result to the clipboard

It’s beautiful. But coming up with the perfect emoji is far too slow for me in this “move fast and break things” world. I have projects to build! Repos to vibe! Pull requests to merge! I can’t be thinking about emojis!

And thus, on the stream, we build an emoji list generator (very descriptively called Emoji List Generator) that:

!Image 29: 🖥️ Runs in the terminal

!Image 30: 📋 You paste or write a list

!Image 31: ⌨️ You hit Ctrl + S

!Image 32: 📎 You get the list on your clipboard

(Can you tell I’m dogfooding the product here?)

How we built it

We used a few cool technologies for this project:

!Image 33: 🖥️`@opentui/core`for the terminal UI

!Image 34: 🤖`@github/copilot-sdk`for the AI brain

!Image 35: 📋`clipboardy`for clipboard access

To start the project off, we opened up the GitHub Copilot CLI.

In plan mode using Claude Sonnet 4.6, we wrote:

I want to create an AI-powered markdown emoji list generator. Where, in this CLI app, if I paste in or write in some bullet points, it will replace those bullet points with relevant emojis to the given point in that list, and copies it to my clipboard. I'd like it to use GitHub Copilot SDK for the AI juiciness.

Copilot asked me a bunch of clarifying questions, for example around the tech stack and what libraries we should use (shoutout toGaborin the chat for suggestingOpenTUI), and from there, we had a fully thought-out`plan.md`file for me to review and use!

We implemented the plan using Claude Opus 4.7 (which wasrecently released!) and a few minutes later, voilà, we had a fun little terminal UI to work with!

![Image 36: Screenshot of the 'Emoji List Generator.' Paste or type your bullet points below. Press CTRL + S to generate, CTRL + C to quit.

Your bullet points

  • Is there a ghost here?
  • Ducks quack a lot
  • I would like to have a word with the moon
  • Mechanical keyboards are cool
  • We just launched a sick new feature
  • I'd like to squish some slime

Followed by the same list, with appropriate emojis.](https://github.blog/wp-content/uploads/2026/04/list.png?resize=1869%2C1944) The project was small but mighty. In the CLI, we used some really cool tools all together:

!Image 37: 📋Plan mode

!Image 38: 🤖Autopilot mode

!Image 39: 🔀Multi-modelworkflow

!Image 40: 🚩The`allow-all`tools flag

!Image 41: 🐙 TheGitHub MCP server

If you’d like to build a project like this yourself, you can check out the docs forthe GitHub Copilot CLIand theGitHub Copilot SDKtoday!

Theemoji list generator is free and open source, just for you.

Happy building!

  • * *

Tags:

Written by

Image 42: Cassidy Williams

[Cassidy Williams](https://github.blog/author/cassidoo/)

@cassidoo

Cassidy is senior director for developer advocacy here at GitHub. She enjoys building software, advising startups, and teaching developers how to build better. She has a weekly newsletter at cassidoo.co/newsletter where you can get her updates, practice coding problems, and a joke in your inbox!

Table of Contents

More on [GitHub Copilot](https://github.blog/tag/github-copilot/)

[Build a personal organization command center with GitHub Copilot CLI](https://github.blog/ai-and-ml/github-copilot/build-a-personal-organization-command-center-with-github-copilot-cli/)

Learn about the productivity tool one GitHub engineer built, and how AI supported the development process.

[Cassidy Williams](https://github.blog/author/cassidoo/ "Posts by Cassidy Williams")&[Jacklyn Carroll](https://github.blog/author/jacklynlee31/ "Posts by Jacklyn Carroll")

[GitHub Copilot CLI for Beginners: Getting started with GitHub Copilot CLI](https://github.blog/ai-and-ml/github-copilot/github-copilot-cli-for-beginners-getting-started-with-github-copilot-cli/)

GitHub for Beginners: Getting started with the GitHub Copilot CLI, a step-by-step tutorial.

[Christopher Harrison](https://github.blog/author/geektrainer/ "Posts by Christopher Harrison")

Related posts

Image 43: Thumbnail showing 'My AI command center'

AI & ML

[Build a personal organization command center with GitHub Copilot CLI](https://github.blog/ai-and-ml/github-copilot/build-a-personal-organization-command-center-with-github-copilot-cli/)

Learn about the productivity tool one GitHub engineer built, and how AI supported the development process.

[Cassidy Williams](https://github.blog/author/cassidoo/ "Posts by Cassidy Williams")&[Jacklyn Carroll](https://github.blog/author/jacklynlee31/ "Posts by Jacklyn Carroll")

Image 44: Copilot moves through a decorative field of floating cubes marked with sync and check icons.

AI & ML

[Hack the AI agent: Build agentic AI security skills with the GitHub Secure Code Game](https://github.blog/security/hack-the-ai-agent-build-agentic-ai-security-skills-with-the-github-secure-code-game/)

Learn to find and exploit real-world agentic AI vulnerabilities through five progressive challenges in this free, open source game that over 10,000 developers have already used to sharpen their security skills.

[Joseph Katsioloudes](https://github.blog/author/jkcso/ "Posts by Joseph Katsioloudes")

Image 45: Header showing "What is Copilot CLI?" and GitHub Copilot iconography

AI & ML

[GitHub Copilot CLI for Beginners: Getting started with GitHub Copilot CLI](https://github.blog/ai-and-ml/github-copilot/github-copilot-cli-for-beginners-getting-started-with-github-copilot-cli/)

GitHub for Beginners: Getting started with the GitHub Copilot CLI, a step-by-step tutorial.

[Christopher Harrison](https://github.blog/author/geektrainer/ "Posts by Christopher Harrison")

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