Rule of law as institutional substrate — contract enforcement, judicial independence, equal treatment before the law. Upstream of most other axes.
PM V.P. Singh announced 7 Aug 1990 implementation of 1980 Mandal Commission recommendations providing 27% reservation in central- government jobs for Other Backward Classes, on top of existing 22.5% SC/ST reservations. Triggered violent anti-Mandal protests and self- immolations; Supreme Court in Indra Sawhney (1992) upheld 27% OBC quota subject to creamy-layer exclusion and 50% total reservation ceiling. Durable institutional reshaping of Indian public-service affirmative action.
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.