Data Command

Minecraft 版本： 1.21.11

平台： fabric

标签： library utility

Data Command

Data Command is a lightweight developer utility that allows datapacks to create fully custom commands with support for user input. Define commands in JSON, receive arguments inside functions, and build systems that would normally be impossible using vanilla datapacks alone.

✨ Why Data Command?

Minecraft datapacks have always been limited when it comes to player input. While /trigger can only accept integers, many systems require actual text input.

Data Command solves this by allowing datapacks to define their own commands and receive parsed arguments directly inside functions.

Examples include:

• Authentication systems
• Town and faction names
• Economy commands
• RPG classes
• Dialogue systems
• Server utilities
• Custom admin tools

? Features

• Custom commands defined entirely through JSON.
• String arguments.
• Integer arguments.
• Boolean arguments.
• Automatic argument parsing.
• Datapack-friendly integration.
• Lightweight and dependency-focused design.
• Designed specifically for datapack developers.

? Example

Folder structure:

/data/example/command/town.json
/data/example/function/create_town.mcfunction

Command definition:

{
  "function": "example:create_town",
  "permission_level": 0,
  "args": [
    {
      "name": "name",
      "type": "String",
      "required": true
    },
    {
      "name": "max_members",
      "type": "Integer",
      "required": false,
      "default": 20
    },
    {
      "name": "public",
      "type": "Boolean",
      "required": false,
      "default": true
    }
  ]
}

When a player executes:

/town TinyVille 50 true

Data Command runs:

example:create_town

with the following macros:

{
  "name": "TinyVille",
  "max_members": 50,
  "public": true
}

⚠️ Beta Status

This is the first beta release of Data Command.

Known Issues

• Invalid argument errors may be unclear.
• Reloading datapacks may occasionally require reconnecting.

Please report any bugs you encounter.

❓ FAQ

Is this a datapack?

No. Data Command is a mod/library intended to be used by datapacks.

Do players need to install it?

Only the server needs Data Command unless a datapack specifically requires client-side functionality.

Can I use it in my own datapack?

Yes. Data Command is designed to be used as a dependency for other projects.

Is the API stable?

Not yet. As this is an early beta release, some APIs may change.

? Feedback

Found a bug or have a feature request?

• Report issues on GitHub.
• Share feedback and suggestions.
• Help improve future releases of Data Command.