Ship a clinical rule change safely: a deterministic engine shadow-runs the proposed ruleset against the baseline over the same 120 synthetic patients — the LLM only narrates the computed diff.
Deliberate change: ACE-inhibitor U&E monitoring moves from annual to 6-monthly.
Showing built-in ruleset choices while the backend wakes up — the first run may take ~10–20s.
The intended-change demo
Demo/educational tool using synthetic data. Not a medical device; not for clinical use. Monitoring intervals are illustrative, derived from public guidance. Rule changes to a real clinical system need formal change control and clinical sign-off.