Rule of law as institutional substrate — contract enforcement, judicial independence, equal treatment before the law. Upstream of most other axes.
Lei 6683/1979 granted amnesty to political crimes committed 2 September 1961 - 15 August 1979, including bilaterally covering regime agents responsible for torture (the "blanket amnesty" interpretation upheld by STF in ADPF 153/2010). Enabled exile return but entrenched institutional impunity for security services.
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.