I can't get `description` from `Java-platform`

I customize a BOM and use description internally, but I can’t get it in the plugin

This is part of BOM

description "spring boot extension bom"
project.setDescription("spring boot extension bom")

dependencies {
    api platform(SpringBootPlugin.BOM_COORDINATES)
}

This is part of the plugin’s code

name.set(project.name)
description.set(project.description)
 println project.name
 println project.description

Console

> Configure project :
livk-boot-dependencies
null