Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full disclosure burden. 'List' implies a read-only operation, but nothing confirms that, and it says nothing about whether it errors with no open project, how results are ordered, or whether there is a size limit — and 'with their properties' gives no sense of what is actually returned.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.