What structural statistics can I get from Twine, ink and Yarn Spinner without writing my own parser, and what do they not tell me?

At the pinned versions: Twine's Details view reports characters, words, passages, links and broken links; inklecate's -s flag prints words, knots, stitches, functions, choices, gathers and diverts as JSON (source-level, not for compiled .json); `ysc graph` exports all nodes and links as DOT or mermaid. None reports number of endings, path counts, cycles or reconvergence; those need the exported graph plus your own computation. Curator qualifications: Twine reference: 'The number of characters and words in all of your passage text. The number of passages in your story. The number of links and broken links'. ink Stats struct fields: words, knots, stitches, functions, choices, gathers, diverts; inklecate: '-s: Print stats about story including word count in JSON format' and 'Cannot show stats for .json, only for .ink'. YarnSpinner-Console README line 124-130: '## Generating a node graph' / 'ysc graph ... [--format dot|mermaid]'. Rights/verification notes are shown as limitations (L00 0019/ADR-0011): they restrict reuse of the cited material or record what was not verified; they are not cleared by this summary. Limitations: [component_reuse_restriction] Licences of ink (MIT) and YarnSpinner-Console not re-read. Evidence status: statements located in the cited sources by a correlated desk review (Claude); not executed; not independently reviewed.

{
  "citations": [
    {
      "url": "https://twinery.org/reference/en/editing-stories/stats.html",
      "note": "see curator disposition"
    },
    {
      "url": "https://github.com/inkle/ink/blob/35c63e52f1d36060930dc7ed3cfba38ea224b528/compiler/Stats.cs",
      "note": "see curator disposition"
    },
    {
      "url": "https://github.com/inkle/ink/blob/35c63e52f1d36060930dc7ed3cfba38ea224b528/inklecate/CommandLineTool.cs",
      "note": "see curator disposition"
    },
    {
      "url": "https://github.com/YarnSpinnerTool/YarnSpinner-Console/blob/9e175373e6199f5173c51c272c7ecba0edf7eaca/README.md",
      "note": "see curator disposition"
    }
  ]
}