Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the tool's simplicity, rich annotations (read-only, idempotent, open-world, non-destructive), and the existence of an output schema, the description is largely complete. It covers the essential purpose and pagination behavior. The only minor gap is not explicitly stating that the search is an exact match on SHA256, but that is strongly implied by the wording. Overall, it provides sufficient context for correct invocation.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.