Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given no parameters, no annotations, no output schema, and a straightforward read purpose, the description is minimally complete. However, it lacks details that would make it fully helpful, such as whether results include file paths, whether it searches all project items, or how it pairs with other tools like 'collect_files'. It does not explain return format since no output schema exists, which is a gap.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.