Official VS Code extension for YAPL (Yet Another Prompt Language) — a tiny, composable prompt templating language designed for AI agents.

Quick links: Website · VS Marketplace · Open VSX (VSCodium) · Discord

• Rich TextMate-based syntax highlighting for:
  • *.md.yapl — Markdown templates
  • *.json.yapl — JSON templates
  • *.yaml.yapl / *.yml.yapl — YAML templates
  • *.txt.yapl — Plain text templates
• Custom file icons for all .yapl files (enable the "YAPL File Icons" theme)
• Basic code folding via brackets/indentation (provided by language configuration)

Install from the marketplaces:

• VS Code Marketplace
• Open VSX (for VSCodium/Code OSS)

Command line:

# VS Code (from VS Marketplace)
code --install-extension EinfachAI.yapl

# VSCodium (from Open VSX)
codium --install-extension EinfachAI.yapl

Create a new file with a .yapl extension and start writing YAPL templates:

{# hello.md.yapl #}

{% block system %}
  You are a helpful AI assistant.
{% endblock %}

{% block prompt %}
  Hello {{ name | default("there") }}!
  How can I help you with {{ topic }}?
{% endblock %}

To contribute to this extension:

1. Clone the repository
2. Open in VS Code
3. Press F5 to launch Extension Development Host
4. Test with files in the samples/ directory

# Install dependencies
npm install

# Package extension
npm install -g vsce
vsce package

• Website
• Docs
• GitHub yapl-ts
• NPM

Contributions are welcome! Feel free to:

• Report bugs and issues
• Suggest new features
• Submit pull requests
• Improve documentation

This project is licensed under the MIT License.

• YAPL Community (Discord)
• GitHub Issues

Made with 💖 for the YAPL community