{
    "handoverDate":  "2026-04-18",
    "closedRoadmapPlan":  "docs/superpowers/plans/2026-04-17-scene-skill-60-to-90-roadmap-plan.md",
    "postRoadmapPlan":  "docs/superpowers/plans/2026-04-18-scene-skill-post-roadmap-execution-plan.md",
    "roadmapClosureStatus":  "completed",
    "scopeStatement":  "The 60-to-90 roadmap is closed; post-roadmap work starts from execution-board unification, real-sample validation, and bounded next-stage planning without reopening G1/G2/G3 compiler work.",
    "mainlineFamilyStateMatrix":  [
                                      {
                                          "group":  "G2",
                                          "status":  "batch-expansion-promoted",
                                          "representativeBaseline":  "tests/fixtures/generated_scene/multi_mode",
                                          "promotedExpansions":  5,
                                          "candidateQueueCount":  0
                                      },
                                      {
                                          "group":  "G1-E",
                                          "status":  "batch-expansion-promoted",
                                          "representativeBaseline":  "tests/fixtures/generated_scene/g1e_light_enrichment",
                                          "promotedExpansions":  2,
                                          "candidateQueueCount":  0
                                      },
                                      {
                                          "group":  "G3",
                                          "status":  "batch-expansion-promoted",
                                          "representativeBaseline":  "tests/fixtures/generated_scene/paginated_enrichment",
                                          "promotedExpansions":  10,
                                          "candidateQueueCount":  0
                                      }
                                  ],
    "boundaryFamilyStateMatrix":  [
                                      {
                                          "group":  "G6",
                                          "status":  "boundary-family-established"
                                      },
                                      {
                                          "group":  "G7",
                                          "status":  "boundary-family-established"
                                      },
                                      {
                                          "group":  "G8",
                                          "status":  "boundary-family-established"
                                      }
                                  ],
    "deferredFamilyStateMatrix":  [
                                      {
                                          "group":  "G4",
                                          "status":  "deferred"
                                      },
                                      {
                                          "group":  "G5",
                                          "status":  "degraded"
                                      }
                                  ],
    "notes":  [
                  "This handover snapshot freezes the boundary between the completed roadmap and post-roadmap execution work.",
                  "No old roadmap implementation item remains open in G2, G1-E, or G3.",
                  "Boundary and deferred families remain outside the completed mainline closure."
              ]
}