Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description must fully disclose behavioral traits. It states the tool patches (mutation) and is conditional on support, but does not describe what happens on failure (error/no-op), whether the change is reversible, how the instruction is modified (e.g., condition always true vs. unconditional jump), or any side effects like size changes. Minimal transparency.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.