Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries the full behavioral burden. It implies both a read (scan boards) and a write (auto-track matches), yet says nothing about whether leads are created or deduplicated, what 'capability matches' are compared against, or any rate limits — the write side-effect is the most important thing to disclose and it is left implicit.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.