The fit check
The nine questions have answers sitting in your own CRM. How many of the instruments can read yours right now depends on what your system lets you export. Pick your stack, tick what you can pull, and see exactly how deep the picture goes today, and what one export or connection would open up.
Step 1 · Your CRM
This decides how reachable your stage-change history is, which is the one piece of data that separates a partial read from a full one.
This is depth of visibility, not a menu. You are not choosing instruments off a list. Every instrument is part of one diagnosis; what changes with your data is how much of the picture comes into focus, and how fast.
The instruments you can run now are where a first Diagnostic starts. The ones a single export unlocks are the depth the Architecture phase works from. The last two, that a connection opens, are what the Monitored subscription runs on a cadence, watching the picture as it moves.