{
  "version": 1,
  "id": "analytical-decision-surface",
  "task": "Decide whether an invented operations district needs coverage review before its next activity cycle.",
  "data": "One shared synthetic HTML template. All entities, localities, geometry, cycles, labels, scores, and counts are invented; no external data or map tiles.",
  "good": "Consolidated summary, compact scalar context, table and recommendation adjacent, high-contrast facility marks, large map.",
  "bad": "Repeated headline metrics, tall single-value tracks, empty summary bands, distant recommendation, low-contrast facility marks.",
  "alternatives": [
    "Keep a larger map when facility inspection is central.",
    "Use a stacked layout at narrow widths while preserving type and label detail."
  ],
  "exception": "Repeated context may be useful across independent decisions or after a long scroll. A richer multi-value chart is not a scalar and needs its own scope.",
  "example": "decision.html",
  "config": "decision-config.json",
  "rules": "decision-rules.json",
  "viewports": [
    {
      "name": "desktop",
      "width": 1440,
      "height": 1100
    }
  ],
  "sources": [
    "https://www.edwardtufte.com/book/the-visual-display-of-quantitative-information/",
    "https://www.w3.org/WAI/WCAG22/Understanding/non-text-contrast.html"
  ],
  "nativeChecks": [
    {
      "id": "decision-summary-density",
      "type": "region-density",
      "designRules": ["DR-007"],
      "verification": "deterministic declared DOM geometry/identity proxy"
    },
    {
      "id": "decision-repeated-summary",
      "type": "repeated-metric",
      "designRules": ["DR-007", "DR-008"],
      "verification": "deterministic declared DOM geometry/identity proxy"
    },
    {
      "id": "decision-evidence-distance",
      "type": "evidence-proximity",
      "designRules": ["DR-006"],
      "verification": "deterministic declared DOM geometry/identity proxy"
    },
    {
      "id": "decision-scalar-height",
      "type": "max-height",
      "designRules": ["DR-007", "DR-008"],
      "verification": "deterministic declared DOM geometry/identity proxy"
    },
    {
      "id": "decision-mark-contrast",
      "type": "mark-contrast",
      "designRules": ["DR-007", "DR-016"],
      "verification": "deterministic solid-color model; unsupported paint is unassessed"
    },
    {
      "id": "decision-readable-type",
      "type": "min-font-size",
      "designRules": ["DR-007"],
      "verification": "deterministic declared DOM geometry/identity proxy"
    },
    {
      "id": "decision-map-detail",
      "type": "min-size",
      "designRules": ["DR-007"],
      "verification": "deterministic declared DOM geometry/identity proxy"
    },
    {
      "id": "decision-evidence-present",
      "type": "context",
      "designRules": ["DR-003"],
      "verification": "deterministic declared DOM geometry/identity proxy"
    }
  ],
  "expected": {
    "good": [],
    "bad": [
      "decision-summary-density",
      "decision-repeated-summary",
      "decision-evidence-distance",
      "decision-scalar-height",
      "decision-mark-contrast"
    ]
  },
  "humanReview": [
    "Semantic information density and task relevance; DOM counts and text coverage do not measure either.",
    "Whether repeated metrics are redundant or supply useful context, and whether annotations cover every summary.",
    "Whether the selected evidence actually supports the recommendation and the action is appropriate.",
    "Facility/locality resolution, label collisions, and the useful share of map area. The 480×340 minimum is a fixture choice.",
    "Contrast over imagery, gradients, SVG/canvas paint, overlapping terrain, sibling layers, outlines, anti-aliasing, and interactive themes.",
    "Whether a large display carries genuinely scalar information; max-height enforces only the authored selector boundary."
  ],
  "verification": "The packed, installed CLI checks both individual layouts against the same rules. Passing means these configured checks pass, not human design approval.",
  "rationale": "decision-rationale.md"
}