Trade policy openness — tariffs, non-tariff barriers, FTAs, industrial protection.
Rule of law as institutional substrate — contract enforcement, judicial independence, equal treatment before the law. Upstream of most other axes.
The 26 April 2023 Washington Declaration between President Yoon and President Biden established a bilateral Nuclear Consultative Group, scheduled US SSBN port calls to Korea (first such since the 1980s), and reaffirmed extended deterrence in exchange for Korea's explicit non-nuclear commitment. Followed by the 18 August 2023 Camp David summit with Japan's PM Kishida producing the trilateral Camp David Principles, Spirit, and Commitment — institutionalising annual trilateral summits, joint military exercises, information-sharing on DPRK missile launches, and supply-chain resilience coordination. Strongest US-Japan-Korea alignment since 1965 normalisation.
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.