{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "urn:orbiplex:schema:whisper-threshold-reached:v1",
  "title": "WhisperThresholdReached v1",
  "description": "Machine-readable schema for a threshold event indicating sufficient aligned whisper interest for association bootstrap.",
  "type": "object",
  "additionalProperties": true,
  "x-dia-workflow": "project",
  "x-dia-status": "draft",
  "x-dia-basis": [
    "doc/project/20-memos/orbiplex-whisper.md",
    "doc/project/30-stories/story-005.md",
    "doc/project/40-proposals/013-whisper-social-signal-exchange.md"
  ],
  "required": [
    "schema/v",
    "threshold/id",
    "cluster/id",
    "created-at",
    "detector/node-id",
    "topic/class",
    "threshold/policy-ref",
    "participants/distinct-node-count",
    "participants/interest-count",
    "bootstrap/candidate-node-ids",
    "disclosure/profile"
  ],
  "properties": {
    "schema/v": {
      "const": 1,
      "description": "Schema version."
    },
    "threshold/id": {
      "type": "string",
      "minLength": 1,
      "description": "Stable identifier of the recognized threshold event."
    },
    "cluster/id": {
      "type": "string",
      "minLength": 1,
      "description": "Correlation cluster identifier shared with later association proposals."
    },
    "created-at": {
      "type": "string",
      "format": "date-time",
      "description": "Timestamp of threshold recognition."
    },
    "detector/node-id": {
      "type": "string",
      "minLength": 1,
      "description": "Node that emitted the threshold event."
    },
    "topic/class": {
      "type": "string",
      "minLength": 1,
      "description": "Issue class for which critical mass was detected."
    },
    "threshold/policy-ref": {
      "type": "string",
      "minLength": 1,
      "description": "Reference to the threshold policy used for recognition."
    },
    "participants/distinct-node-count": {
      "type": "integer",
      "minimum": 2,
      "description": "Number of distinct nodes that contributed sufficient aligned signals or interest."
    },
    "participants/interest-count": {
      "type": "integer",
      "minimum": 2,
      "description": "Number of counted interest registrations in the cluster."
    },
    "participants/trust-summary": {
      "type": "object",
      "additionalProperties": true,
      "description": "Optional aggregate trust-tier or diversity summary."
    },
    "bootstrap/candidate-node-ids": {
      "type": "array",
      "minItems": 2,
      "items": {
        "type": "string",
        "minLength": 1
      },
      "description": "Candidate nodes from which a deterministic bootstrap subset may be derived."
    },
    "disclosure/profile": {
      "type": "string",
      "enum": [
        "aggregate-notice-only",
        "room-opt-in",
        "witness-reviewed"
      ],
      "description": "Disclosure posture allowed at threshold crossing."
    },
    "policy_annotations": {
      "type": "object",
      "additionalProperties": true
    }
  }
}