Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already provide readOnlyHint, openWorldHint, idempotentHint, destructiveHint=false. The description adds only 'extracted from wikitext', which is a minor source detail but does not disclose important behavioral traits like what happens for missing words, supported languages, or format of transcriptions.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.