Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
The description indicates a read-only listing action ('List'), which implies no side effects, but it does not disclose any additional behavioral traits such as whether templates come from a local database, network call, or how results are formatted. With no annotations to fall back on, the description provides the bare minimum but lacks deeper context.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.