Advancement Tweaker

A server-side mod that provides complete control over how achievements appear in chat and allows configuring command execution when they are obtained.

Configuration

The configuration file structure looks as follows:

Main Features

Each JSON object in the configuration file represents a separate achievement:

• Achievement identifier is specified as the key
• Chat message is configured through the "message" property, supports standard Minecraft chat formatting and placeholders: ${player} (player's display name) and ${advancement} (achievement name and description)
• Command execution is set through the "command" property as a list of commands that will be executed when the achievement is obtained, with support for the ${player} placeholder (player's display name)

The mod is perfect for use in any modpacks!