Lineweight appears in many cad studio workflows, but it is easy to use the word without writing down the actual assumption. Lineweight Preflight keeps the term connected to an action, a risk, and an export path.
Use this reference when a page visitor needs a compact definition before running the tool. The best version of a reference page is not a dictionary entry. It is a small operating note that helps someone make a better decision.
Review questions: What unit or standard is implied? Who owns the final check? What would make the result unsafe to reuse? Which output should be copied into the project record?
Next action: Open the tool, run a project-specific pass, then export the result for review.