Rule of law as institutional substrate — contract enforcement, judicial independence, equal treatment before the law. Upstream of most other axes.
Under Chuan government's first term, political-reform momentum built for drafting a new constitution to replace the post-Black-May 1991 interim-amendment framework; debates initiated 1994-1995 eventually produced the 1997 'People's Constitution' (Constitution B.E. 2540) promulgated 11 Oct 1997 under Chavalit government. Included direct- election Senate, elected PM requirement, independent commissions (NCCC, NHRC, Constitutional Court), and stronger civil liberties.
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.