FPF Reference

M3 — VariantPool (candidate inventory + emitter trace)

Preface node heading:m3-variantpool-candidate-inventory-emitter-trace:55205

Content

Owns (kit surface):

  • VariantPoolId bound to CG‑FrameContext
  • per‑candidate minimal traceability fields (emitter identity, EmitterPolicyRef (policy‑id/ref; owner‑defined), method/generator refs when declared, edition pins, provenance anchors)
  • optional, per‑candidate assurance preview pointers (e.g., PathSliceId? and/or SCRId? when early assurance is recorded) and optional QD/Open‑Ended scaffolding stubs (only when introduced by explicit GPatternExtension blocks)

Guardrails (via G.Core):

  • tri‑state eligibility handling, penalties routing, crossing visibility, and set‑return constraints are not defined here; they are enforced via G.Core conformance.

Semantic owner of method payload: method‑specific emitter semantics live in Extensions (e.g., C.17, C.18, C.19). M3 MUST remain method‑agnostic in its core definition: it is an inventory surface, not an algorithm spec.