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Architecture decision records

ADR Decision
0001 Layering and public surface
0002 Strategy authoring API
0003 Look-ahead is prevented by structure
0004 Data layer and cache format
0005 Validation gates and trial ledger
0006 Paper trading kernel
0007 Packaging and release
0008 Documentation toolchain
0009 Plugins: add-only gates and report sections
0010 Factors and point-in-time universes (proposed)
0011 Safe formulaic factor expressions (proposed)
0012 Factor composition and long-only portfolio construction (proposed)
0013 Corporate-action identity and effective time (proposed)
0014 Real-data formula search and the factor holdout (proposed; design decided 2026-10-06)
0015 Research studies: declared, comparable sets of runs (proposed)
0016 Dataset import and data providers (proposed)
0017 Point-in-time features and fitted models (proposed; changes pre-1.0 scope)