Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations indicate readOnlyHint=true, and the description doesn't contradict this, as 'Call before code edits' implies a preparatory step rather than a mutation. The description adds minimal behavioral context beyond the annotations, such as the timing aspect, but doesn't disclose other traits like what the tool evaluates, its output format, or any side effects. With annotations covering safety, a baseline 3 is appropriate.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.