JB · Extractor

Pulls one or more named subtrees out of a JSON string. Modes — auto-selected by the category value: • single key → recursive search through every nesting level, returns the first match wrapped as {key: value}. • dot-path → strict descent (e.g. 'character_1.hosiery'), returns {last_segment: value}. • multi → comma / newline / semicolon separated list; each category is resolved independently and the results are merged into one {key: value} dict. Categories that aren't found are skipped silently. • empty → returns the whole input unwrapped. found=True if at least one category matched.