Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given output schema, annotations, and full parameter coverage, the description supplies nearly everything needed: purpose, partial-match semantics, pagination, cost, and result usage. It could be more complete by explicitly distinguishing from g_skill_lookup, but nothing essential is missing.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.