Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the output schema, annotations, and the one documented parameter, the description covers all important edge cases and expectations: what each entry contains, when lexeme is omitted, the lexicon scope, and the five verses with no data. It points to the changelog for those verse names, which is the right mechanism.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.