Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden of behavioral disclosure. It implies a mutation ('Disable'), suggesting this tool changes system state, but doesn't specify effects (e.g., whether it's reversible, impacts on sessions/tabs, or error conditions). No additional context like rate limits or auth needs is included, leaving behavioral traits unclear.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.