Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the presence of an output schema, annotations, and a sibling tool, the description is complete: it explains the tool's purpose, its language scope, and how its output connects to ler_pagina. No critical context is missing for a simple search tool.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.