Four metrics that cover the surface
Citation share (percentage of your prompt set where you are cited), answer position (your ordinal rank among cited sources), sentiment (how your brand is characterised), and AI referral sessions (traffic from AI hosts in analytics).
Benchmark against named rivals
Absolute citation share means little without context. Track the same prompt set for three to five competitors so every report answers 'versus whom'.
Segment by prompt intent
Category prompts, comparison prompts, and branded prompts behave differently. Losing category prompts while winning branded ones means you have awareness but no consideration - a content problem, not a brand problem.
Turn gaps into a work queue
Each uncited prompt maps to one action: create a passage, restructure an existing one, add a date or number, or fix crawler access. Prioritise by prompt commercial value, not by how far behind you are.
Report it separately from SEO
Keep AI visibility on its own page of the report with its own baseline. Blending it into ranking charts hides both wins and regressions.