Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations declare readOnlyHint=false and idempotentHint=false, so the agent knows this mutates state and may not be safe to repeat, but the description adds nothing beyond 'insert' — not where the directive is written, whether an existing .ic is replaced or duplicated, or what happens to the schematic. With annotations only supplying bare flags, the description's near-total silence is a real gap.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.