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Library / First Principles Framework (FPF) - Core Conceptual Specification
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G.4:1 - Problem frame

CAL authoring starts from:

  • one exact CG‑Frame with its EntityOfConcern, ReferencePlane, task, and assumption envelope,
  • a plurality of method traditions and claims (SoTA inputs), and
  • CHR‑typed measurement constructs (Characteristic/Scale/Coordinate + legality guard macros).

Before any run‑time selection, comparison, aggregation, or selected-set formation is executed downstream, authors need an explicit, auditable CAL Pack that:

  1. defines what operators exist and what they are allowed to do over CHR types,
  2. externalizes fit-for-purpose acceptance as typed predicates whose use is bounded by an exact ClaimScope, evaluation window, and any separate qualification window that limits use, and
  3. binds these choices to an evidence wiring surface (lanes, provenance anchors, policy pins, and refresh triggers) so that downstream selection, logging, parity, and shipping can cite stable ids rather than re‑inventing semantics.

This pattern provides the design‑time authoring kit and the publication surface for CAL artifacts, while delegating Part‑G‑wide invariants to G.Core and CN-Spec and CG-Spec legality to CG‑Spec/CN‑Spec.