Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Despite the tool's moderate complexity (6 params, multiple contexts, sibling interactions), the description covers the full invocation surface: what it creates, how to use it in Team vs. personal context, which options are recommended vs. optional, how @mentions work, and how to handle the created action afterward (read/close/edit). The output schema exists, so return values need no explanation. Nothing an agent needs to call it correctly is missing.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.