{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "Triage Suppress Predicate v1",
  "description": "Predicate schema for stella.ops/triageSuppress@v1. See docs/contracts/triage-suppress-v1.md.",
  "type": "object",
  "required": ["cve_id", "suppress_reason", "vex_consensus", "witness_evidence", "reachability_state", "timestamp"],
  "properties": {
    "cve_id": {
      "type": "string",
      "description": "CVE identifier (e.g., CVE-2025-0001)",
      "pattern": "^CVE-\\d{4}-\\d{4,}$"
    },
    "suppress_reason": {
      "type": "string",
      "enum": ["vex_not_affected_with_unreachability_confirmation"],
      "description": "Machine-readable reason for suppression"
    },
    "vex_consensus": {
      "type": "object",
      "required": ["status", "confidence_score", "consensus_digest", "computed_at"],
      "properties": {
        "status": { "type": "string", "enum": ["not_affected"] },
        "justification": { "type": "string" },
        "confidence_score": { "type": "number", "minimum": 0, "maximum": 1 },
        "consensus_digest": { "type": "string", "description": "SHA-256 of the VexLens consensus record" },
        "source_count": { "type": "integer", "description": "Number of VEX sources contributing" },
        "computed_at": { "type": "string", "format": "date-time" }
      }
    },
    "witness_evidence": {
      "type": "object",
      "required": ["witness_id", "dsse_digest", "observation_type"],
      "properties": {
        "witness_id": { "type": "string", "description": "Witness ID (wit:sha256:...)" },
        "dsse_digest": { "type": "string", "description": "SHA-256 of the witness DSSE envelope" },
        "observation_type": { "type": "string", "enum": ["RuntimeUnobserved", "ConfirmedUnreachable", "StaticallyUnreachable"] },
        "predicate_type": { "type": "string", "description": "URI of the witness predicate type" }
      }
    },
    "reachability_state": {
      "type": "string",
      "enum": ["ConfirmedUnreachable", "StaticallyUnreachable", "RuntimeUnobserved"],
      "description": "Lattice state from the 8-state reachability model"
    },
    "timestamp": {
      "type": "string",
      "format": "date-time",
      "description": "UTC timestamp of suppression evaluation"
    },
    "deterministic_replay_inputs": {
      "type": "object",
      "description": "Inputs sufficient to replay this suppression decision",
      "properties": {
        "canonical_id": { "type": "string" },
        "vex_consensus_digest": { "type": "string" },
        "witness_id": { "type": "string" }
      }
    }
  }
}