Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries the burden of disclosing behavioral traits. It discloses that the tool is advisory and non-resolving, and that it focuses on unresolved import conflicts. This provides meaningful behavioral context beyond the tool's name, though it doesn't detail what 'open' returns or imply read-only status explicitly.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.