Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries the full burden. It discloses the execution mechanism ('runs ContentAudit commandlet') and the nature of the task (finding costly/problematic assets), suggesting a read-only analysis. However, it doesn't state whether the audit modifies assets, requires specific permissions, or produces a detailed report, leaving important behavioral traits unspecified.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.