Runtime Support Matrix

This matrix describes current runtime behavior. When option docs and runtime differ, this page must say so.

Layer	Runtime state
L0	fail_fast / continue_on_failure, seeded/exploratory, serial/parallel schema.
L1	FRED-MD, FRED-QD, FRED-SD, custom inline/path panels, current vintage. real_time_alfred is future.
L2	Mixed-frequency alignment, transform, outlier, imputation, frame-edge policies.
L3	DAG feature pipelines and target_construction; lag is a universal op now enumerated in option_docs/l3.py.
L4	DAG model nodes; 42 documented model families; ar_p is the default family constant.
L5	Metrics include mse, rmse, mae, medae, theil_u1, theil_u2, direction, relative, and density metrics.
L6	Runtime has A-G sublayers. Option docs currently expose only part of that surface.
L7	Interpretation DAG with output controls and model-family gates.
L8	JSON/CSV/Parquet/LaTeX/Markdown/HTML-report formats, gzip/zip compression, manifests, recipe snapshot, per-cell artifacts. saved_objects: all excludes the HTML report (Cycle 11b1 doc-fix).