manifest.json

{
    "manifestVersion": 1.0,
    "id": "MyCustomExtension{{tag}}",
    "name": "My Custom Extension {{tag}}",
    "icons": {
        "default": "icon.png"
    },
    "version": "{{version}}",
    "description": "This extension contains a custom build and release task.",
    "publisher": "{{publisher}}",
    "public": false,
    "categories": [
        "Azure Pipelines"
    ],
    "content": {
        "details": {
            "path": "README.md"
        }
    },
    "targets": [
        {
            "id": "Microsoft.VisualStudio.Services"
        }
    ],
    "contributions": [
        {
            "id": "custom-task",
            "type": "ms.vss-distributed-task.task",
            "targets": [
                "ms.vss-distributed-task.tasks"
            ],
            "properties": {
                "name": "custom-task"
            }
        }
    ],
    "files": [
        {
            "path": "custom-task",
            "addressable": true,
            "packagePath": "custom-task"
        }
    ]
}