Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden of behavioral disclosure. It only says it searches for a symbol by company name but doesn't disclose return format, edge cases, limitations, or any side effects. This is insufficient for an agent to understand what happens when invoking the tool.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.