Rule of law as institutional substrate — contract enforcement, judicial independence, equal treatment before the law. Upstream of most other axes.
Egmont Pact 24 May 1977 between CVP/PSC-BSP/PSB-FDF/VU coalition attempted full federalisation with community and regional competences, Brussels-periphery compromise, linguistic arrangements. Council of State issued negative opinion February 1978. Coalition unable to ratify implementing legislation; Tindemans resigned 11 October 1978. Failure set the pattern for the incremental three-stage federalisation of 1980, 1988, and 1993 under Martens.
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.