E.4.PFR:9 - Rationale

FPF pattern ecosystems are declarative relation systems. Their descriptions state predicates, constraints, dependencies, publication and access arrangements, quality relations, and source uses; the patterns themselves do not act on one another. A sequence of pattern descriptions may describe a method or constrain a separately admitted transformation-flow structure, but displayed order alone performs no Work and admits no Transformation or flow.

The assertion-first rule follows C.2.1 identity and A.22.CGUS declarativity. It avoids building a second ontology of pattern ownership while retaining exact relations already supplied by the Core. PFR is a projection for named maintenance use, not the semantic source.

The three-lane split also controls cost. Lane 1 dominates whenever it closes the task. Lane 2 adds standardized form only for a consumer. Lane 3 separates actual-use truth from optional basis analysis and keeps its output non-permissive.