{
  "version": "1.0.0",
  "updatedAt": "2025-12-01T00:00:00Z",
  "heuristics": [
    {
      "id": "heur.callgraph.hotpath",
      "band": "gold",
      "inputs": ["callgraph.depth", "callgraph.betweenness"],
      "formula": "0.6*depth_norm + 0.4*betweenness_norm",
      "normalization": "minmax",
      "evidence": ["signals/callgraph"]
    },
    {
      "id": "heur.pkg.sbom_age",
      "band": "silver",
      "inputs": ["sbom.age_days", "release_channel"],
      "formula": "case release_channel=='stable' then age_norm else 0.8*age_norm",
      "normalization": "log1p",
      "evidence": ["sbom/age"]
    }
  ],
  "signing": {
    "predicate": "stella.ops/heuristicCatalog@v1",
    "dsse_required": true
  }
}