Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries the full burden. It does disclose that this mutates an external account (creates or repairs a connector), which is useful, but it says nothing about authentication requirements, whether a browser flow or ChatGPT login is needed, idempotency of the 'repair' path, or what happens on failure — and the truncation likely removed exactly that content.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.