初步思路是通过 egg-bin postinstall 自动设置 .vscode/settings.json 里面 json.schemas

{
  "json.schemas": [
    {
      "fileMatch": [
        "config/config.json",
        "config/config.*.json"
      ],
      "url": "https://eggjs.org/config.schema"
    }
  ]
}

https://json-schema.org/learn/getting-started-step-by-step.html

https://code.visualstudio.com/docs/languages/json

poc

.vscode/settings.json

{
  "json.schemas": [
    {
      "fileMatch": [
        "config/config.json"
      ],
      "schema": {
        "type": "object",
        "properties": {
          "logger": {
            "type": "object",
            "properties": {
              "level": {
                "type": "string",
                "description": "default log level, could be: DEBUG, INFO, WARN, ERROR or NONE, defaults to INFO in production",
                "enum": [ "DEBUG", "INFO", "WARN", "ERROR", "NONE" ]
              }
            }
          },
          "name" : {
            "type": "string",
            "description": "The name of the entry"
          }
        }
      }
    }
  ]
}