lspd2 - D2 Language Server

Intelligent autocomplete, validation, and documentation for D2 diagram files.

Features

✅ Smart Autocomplete

• Shape suggestions (rectangle, hexagon, cylinder, etc.)
• Style property completion
• Direction keywords

✅ Real-Time Validation

• Invalid shape detection
• Unknown style properties
• Undefined connection targets

✅ Hover Documentation

• Shape descriptions
• Style property details

Installation

Search "lspd2" in VS Code Extensions or:

ext install lspd2

Usage

Open any .d2 file and start typing:

myapp: My App {
  shape: rec  # Autocompletes to "rectangle"
  style.fill: "#e3f2fd"
}

Roadmap

• [ ] Go-to-definition
• [ ] Rename symbol
• [ ] Code actions (quick fixes)
• [ ] Workspace symbols