You may have already seen it but jc (https://kellyjonbrazil.github.io/jc/) helps with the first two:

  $ jc ls -l | jq
  [
    {
      "filename": "bin",
      "flags": "drwxr-xr-x",
      "links": 1,
      "owner": "nathanmcrae",
      "group": "nathanmcrae",
      "size": 4096,
      "date": "Jun 28 15:15"
    },
    {
      "filename": "pkg",
      "flags": "drwxr-xr-x",
      "links": 1,
      "owner": "nathanmcrae",
      "group": "nathanmcrae",
      "size": 4096,
      "date": "Jun 28 15:15"
    }
  ]