Tags with more direct children than this are flagged as wide-node candidates (when the tag has no explicit MaxChildren cap).
Tags with usage strictly less than this are flagged as low-usage candidates.
Minimum CoOccurrenceCount for a pair to be considered as a merge candidate.
Minimum embedding cosine similarity (0-1) for a merge candidate.
Minimum normalized name similarity (Dice's-coefficient-like, 0-1) for a merge candidate.
Threshold knobs for the Tag Health emitters. Defaults are conservative; tune up/down per deployment based on inbox volume.