Sensitivity registry for PolicyEngine microsim results — maps {program x deviation signature}
to the calibration target or imputed variable most likely driving a mismatch, and reads the
live per-target diagnostics for the current Microcosm release. The knowledge base behind the
calibration-diagnostics agent and /analyze-policy Stage 5.6.
Load when investigating why a microsim result differs from a prior score, or when reviewing
whether a reform classification is calibration-sensitive.
Triggers: "why does my reform not match", "policyengine cost off", "calibration mismatch",
"imputed variable", "takeup rate", "non-filer", "itemizer share", "small state variance",
"calibrat…