Absolute file path
Path relative to the scan root, with forward slashes regardless of platform
Word count outside code spans and fences (see countWords)
Total number of parsed links of every type
Number of parsed links whose type is internal
Number of parsed links whose type is external
Number of internal links whose target file does not exist
Number of links from other scanned files that resolve to this file
Per-file measurements gathered while scanning a markdown tree.
A scanned file carries everything the tree renderer and the statistics builder need, so both stay pure functions over this shape.