Model-written openers fail in predictable ways. They invent a detail, they praise something vague, they stack three asks, or they drift into a house style that no human on the team uses. A reviewer reading forty of them in one sitting cannot hold all five failure modes in mind and stay consistent.
The rubric exists to make the decision repeatable, whether the second reader is a person or another model. Research on large language models acting as judges shows that agreement between judges depends heavily on how the evaluation task is framed and on the dimensions being scored, which is why dimension-by-dimension anchors beat a single holistic grade (Aminab, Salminen and Jansen).
The concrete bar for a specific opener comes from practitioner guidance on first lines: start with a checked company fact, connect it to a relevant offer, and keep it short enough to understand on the first read (Datablist). That sentence contains two separate judgments, fact-checking and relevance, which is why they get separate scores.
Subject lines and call notes fit the same five items. A subject line's "opener specificity" is the specific detail it names; its "single ask" is whether it promises one thing rather than listing three. A call note's "voice match" is whether the phrasing sounds like the rep who will dial, not like a summary written by a bot.



