Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations exist, so the description carries the full burden; it does disclose the output shape (sanitization status, threats neutralized, sanitized content, RFC 3161 audit proof) and that it processes rather than merely inspects. However it never says whether a file-path target is modified in place or left untouched, nor whether the operation is safe/idempotent, which matters for a 'disarm' tool.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.