Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a simple tool with one parameter and no output schema, the description adequately covers purpose, usage, and relationships. It mentions pairing with remember and recall. However, it could briefly note that deletion is irreversible, given destructiveHint=true, but the annotation already covers that.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.