Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a simple one-parameter delete operation with no output schema, the description covers the crucial invocation details: HTTP method, resource path, required parameter, and success response. It omits non-essential details like 404 behavior or idempotency, which are less critical for correctly invoking the tool.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.