FPF Reference

    G.Core:4.2.3 - GCorePinSetId catalogue (compression primitive)

    Preface node heading:g-core-4-2-3-gcorepinsetid-catalogue-compression-primitive:78577

    What this page is

    This is generated FPF reference text from the specification preface or supporting sections. It helps interpret FPF; it is not FPF Reference product documentation.

    Methodology

    Use it to understand how the specification wants to be read, then return to a route, pattern, or work packet for active work. Cite generated IDs only when the wording changes the task decision.

    Content

    A GCorePinSetId is a stable identifier for a named set of commonly recurring pin obligations used in Part‑G kits. It exists solely to reduce repetition in G.x linkage sections (no new semantics).

    Conditional pins (normative). In pin‑set expansions below, a pin marked with ? is conditional: it MUST be present iff the pattern actually uses the corresponding surface/artefact class; otherwise it MAY be omitted (nil‑elision permitted) and is treated as ∅. A G.x MAY strengthen a conditional pin to unconditional by listing it explicitly in CorePinsRequired.

    GCorePinSetIdExpands to CorePinsRequired (set)Notes
    GCorePinSetId.PartG.AuthoringMinimal{CG-FrameContext, entityOfConcern := ⟨GroundingHolon, ReferencePlane⟩, CNSpecRef.edition, CGSpecRef.edition}Baseline scope+spec pins for most Part‑G authoring kits (design‑time, citable, refreshable).
    GCorePinSetId.PartG.CrossingVisibilityPins{BridgeId/BridgeCardId, BridgeMatrixId?, CL/CL^k/CL^plane, Φ/Ψ/Φ_plane policy-ids, CrossingBundleId?, UTSRowId[]?, PathId[]/PathSliceId[]?}Use when the kit asserts or consumes crossings (Bridge‑only + visible). Conditional pins cover “only if that bundle is used” cases (UTS publication, path‑citable evidence, explicit CrossingBundle reference).

    Last Updated: 2026-06-17 — upstream FPF commit 646b0b9b (github.com/ailev/FPF)