{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://stella-ops.org/schemas/trust-vector/1.0.0",
  "title": "Trust Vector Schema",
  "description": "Schema for 3-component trust vectors (Provenance, Coverage, Replayability)",
  "type": "object",
  "required": [
    "provenance",
    "coverage",
    "replayability"
  ],
  "properties": {
    "provenance": {
      "type": "number",
      "minimum": 0,
      "maximum": 1,
      "description": "Provenance score (P): cryptographic and process integrity of the source"
    },
    "coverage": {
      "type": "number",
      "minimum": 0,
      "maximum": 1,
      "description": "Coverage score (C): how well the statement's scope maps to the target asset"
    },
    "replayability": {
      "type": "number",
      "minimum": 0,
      "maximum": 1,
      "description": "Replayability score (R): whether the claim can be deterministically re-derived"
    }
  },
  "additionalProperties": false,
  "$defs": {
    "TrustWeights": {
      "type": "object",
      "description": "Weights for computing BaseTrust = wP*P + wC*C + wR*R",
      "required": ["provenance", "coverage", "replayability"],
      "properties": {
        "provenance": {
          "type": "number",
          "minimum": 0,
          "maximum": 1,
          "default": 0.45,
          "description": "Weight for Provenance component (wP)"
        },
        "coverage": {
          "type": "number",
          "minimum": 0,
          "maximum": 1,
          "default": 0.35,
          "description": "Weight for Coverage component (wC)"
        },
        "replayability": {
          "type": "number",
          "minimum": 0,
          "maximum": 1,
          "default": 0.20,
          "description": "Weight for Replayability component (wR)"
        }
      },
      "additionalProperties": false
    },
    "SourceClassDefaults": {
      "type": "object",
      "description": "Default trust vectors by source classification",
      "properties": {
        "vendor": {
          "$ref": "#",
          "description": "Default vector for vendor sources (P=0.90, C=0.70, R=0.60)"
        },
        "distro": {
          "$ref": "#",
          "description": "Default vector for distribution sources (P=0.80, C=0.85, R=0.60)"
        },
        "internal": {
          "$ref": "#",
          "description": "Default vector for internal sources (P=0.85, C=0.95, R=0.90)"
        },
        "hub": {
          "$ref": "#",
          "description": "Default vector for hub/aggregator sources (P=0.70, C=0.65, R=0.50)"
        },
        "attestation": {
          "$ref": "#",
          "description": "Default vector for attestation sources (P=0.95, C=0.80, R=0.95)"
        }
      },
      "additionalProperties": {
        "$ref": "#"
      }
    },
    "ClaimStrength": {
      "type": "string",
      "enum": [
        "exploitability_with_reachability",
        "config_with_evidence",
        "vendor_blanket",
        "under_investigation"
      ],
      "description": "Evidence-based claim strength categories"
    },
    "ClaimStrengthMultipliers": {
      "type": "object",
      "description": "Multiplier values for each claim strength category",
      "properties": {
        "exploitability_with_reachability": {
          "type": "number",
          "const": 1.00,
          "description": "Exploitability analysis + reachability proof"
        },
        "config_with_evidence": {
          "type": "number",
          "const": 0.80,
          "description": "Config/feature-flag reason with evidence"
        },
        "vendor_blanket": {
          "type": "number",
          "const": 0.60,
          "description": "Vendor blanket statement"
        },
        "under_investigation": {
          "type": "number",
          "const": 0.40,
          "description": "Under investigation status"
        }
      }
    },
    "FreshnessConfig": {
      "type": "object",
      "description": "Configuration for freshness decay calculation",
      "properties": {
        "half_life_days": {
          "type": "number",
          "minimum": 1,
          "default": 90,
          "description": "Days until score halves"
        },
        "floor": {
          "type": "number",
          "minimum": 0,
          "maximum": 1,
          "default": 0.35,
          "description": "Minimum freshness unless revoked"
        }
      },
      "additionalProperties": false
    }
  }
}