Trade policy openness — tariffs, non-tariff barriers, FTAs, industrial protection.
Obama + Castro announced diplomatic normalisation 17 Dec 2014. Embassies reopened Jul 2015 (Havana) + Aug 2015 (Washington). OFAC + BIS regulatory easing: expanded general-licence travel (12 categories), remittance limits raised, telecoms + agricultural-exports carve-outs, credit-card use allowed. Cuba removed from State Sponsors of Terrorism list May 2015. Trump-era Jun 2017 NSPM-5 partially rolled back travel + Cuban-military- entity transactions.
Per invariant 3, reforms are scored by what they did on each channel-separated axis, not by the party that enacted them. This fingerprint is how the policy-match engine finds historical analogues.
Explicit links are curated by the author. Inferred links are hypotheses in the library that test the same axes this policy moved — the framework's answer to "what does the data say about a policy like this?".
Ranked by axis-fingerprint overlap with this policy. Direction match bolded — those are the closest historical analogues. Shape of the match is what drives policy-outcome comparison, not the country or party label.