The tags report shows you which tags are currently in use.

smos-query tags [FILTER [FILTER]] [--hide-archive | --show-archive|-a]

  FILTER            A filter to filter entries by
  FILTER            A filter to filter entries by
  --hide-archive    Hide archived files          
  --show-archive|-a Do not hide archived files   

  SMOS_TAGS_IGNORE_ARCHIVE BOOL   Whether to consider archived entries   default: HideArchive

  Whether to consider archived entries
  default: HideArchive
  tags.hide-archive:
    # or null
    <boolean>

Usage: smos-query tags [FILTER [FILTER]] [--hide-archive | --show-archive|-a]

List all the tags that are in use

Available settings:
  Show this help text
  switch: -h|--help

  A filter to filter entries by
  argument: FILTER

  A filter to filter entries by
  argument: FILTER

  Hide archived files
  switch: --hide-archive

  Do not hide archived files
  switch: --show-archive|-a

  Whether to consider archived entries
  env: SMOS_TAGS_IGNORE_ARCHIVE BOOL
  config:
    tags.hide-archive: # or null
      <boolean>
  default: HideArchive