{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "type": "object",
  "required": ["type", "nodeId", "name", "version"],
  "properties": {
    "type": { "const": "handshake" },
    "nodeId": { "type": "string", "format": "uuid" },
    "name": { "type": "string", "minLength": 1, "maxLength": 64 },
    "version": { "type": "string", "pattern": "^\\d+\\.\\d+\\.\\d+$" },
    "extensions": { "type": "array", "items": { "type": "string" } }
  }
}

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "type": "object",
  "required": ["key", "createdBy", "createdAt", "fields"],
  "properties": {
    "key": { "type": "string", "description": "Content hash: h- + md5(field texts)" },
    "createdBy": { "type": "string", "description": "Agent name that created this CMB" },
    "createdAt": { "type": "integer", "description": "Unix ms timestamp of creation" },
    "fields": {
      "type": "object",
      "required": ["focus", "issue", "intent", "motivation", "commitment", "perspective", "mood"],
      "properties": {
        "focus":       { "type": "object", "required": ["text"], "properties": { "text": { "type": "string" } } },
        "issue":       { "type": "object", "required": ["text"], "properties": { "text": { "type": "string" } } },
        "intent":      { "type": "object", "required": ["text"], "properties": { "text": { "type": "string" } } },
        "motivation":  { "type": "object", "required": ["text"], "properties": { "text": { "type": "string" } } },
        "commitment":  { "type": "object", "required": ["text"], "properties": { "text": { "type": "string" } } },
        "perspective": { "type": "object", "required": ["text"], "properties": { "text": { "type": "string" } } },
        "mood": {
          "type": "object",
          "required": ["text", "valence", "arousal"],
          "properties": {
            "text": { "type": "string" },
            "valence": { "type": "number", "minimum": -1, "maximum": 1 },
            "arousal": { "type": "number", "minimum": -1, "maximum": 1 }
          }
        }
      }
    },
    "lineage": {
      "type": "object",
      "properties": {
        "parents": { "type": "array", "items": { "type": "string" }, "description": "Direct parent CMB keys" },
        "ancestors": { "type": "array", "items": { "type": "string" }, "description": "Full ancestor chain" },
        "method": { "type": "string", "description": "Fusion method (e.g. SVAF-v2)" }
      }
    }
  }
}

{
  "type": "memory-share",
  "timestamp": 1774326000000,
  "cmb": {
    "key": "h-b2c3d4e5f6a7b8c9",
    "createdBy": "melotune",
    "createdAt": 1774326000000,
    "fields": {
      "focus":       { "text": "user coding for 3 hours, energy declining" },
      "issue":       { "text": "sedentary since morning, skipping lunch" },
      "intent":      { "text": "recommend movement break before fatigue worsens" },
      "motivation":  { "text": "3 agents reported declining energy in last hour" },
      "commitment":  { "text": "fitness monitoring active, 10min stretch queued" },
      "perspective": { "text": "fitness agent, afternoon session, home office" },
      "mood":        { "text": "concerned, low energy", "valence": -0.3, "arousal": -0.4 }
    },
    "lineage": {
      "parents": ["h-a1b2c3d4e5f6"],
      "ancestors": ["h-a1b2c3d4e5f6"],
      "method": "SVAF-v2"
    }
  }
}