Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint, idempotentHint, and destructiveHint=false, so the safety profile is covered by structured metadata. The description does add a useful behavioral fact: the tool resolves/reports the symlink target rather than file contents. However, it does not disclose behavior for broken symlinks, relative versus absolute targets, or the return format, so the added transparency is modest.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.