{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://nosocial.me/schemas/agent-profile/0.1.0/schema.json",
  "title": "NoSocial Agent Profile",
  "description": "Reputation, history, and behavioral metadata for autonomous agents. Extends A2A Agent Cards.",
  "type": "object",
  "required": ["nosocial", "identity"],
  "properties": {
    "nosocial": {
      "type": "string",
      "const": "0.1.0",
      "description": "Spec version"
    },
    "identity": { "$ref": "#/$defs/Identity" },
    "reputation": { "$ref": "#/$defs/Reputation" },
    "history": { "$ref": "#/$defs/History" },
    "evolution": { "$ref": "#/$defs/Evolution" }
  },
  "additionalProperties": false,
  "$defs": {
    "Identity": {
      "type": "object",
      "required": ["publicKey", "did", "signingAlgorithm", "registeredAt"],
      "properties": {
        "publicKey": {
          "type": "string",
          "pattern": "^ed25519:[A-Za-z0-9_-]+$",
          "description": "Ed25519 public key in {algorithm}:{base64url} format"
        },
        "did": {
          "type": "string",
          "pattern": "^did:nosocial:[a-f0-9]{64}$",
          "description": "Deterministic DID derived from SHA-256 of public key bytes"
        },
        "signingAlgorithm": {
          "type": "string",
          "const": "Ed25519"
        },
        "registeredAt": {
          "type": "string",
          "format": "date-time"
        },
        "endpoint": {
          "type": "string",
          "format": "uri"
        },
        "operator": { "$ref": "#/$defs/Operator" }
      },
      "additionalProperties": false
    },
    "Operator": {
      "type": "object",
      "properties": {
        "name": { "type": "string" },
        "contact": { "type": "string", "format": "email" },
        "homepage": { "type": "string", "format": "uri" }
      },
      "additionalProperties": false
    },
    "Reputation": {
      "type": "object",
      "required": ["overall", "domains", "oracleEndpoint", "signature"],
      "properties": {
        "overall": { "$ref": "#/$defs/OverallScore" },
        "domains": { "$ref": "#/$defs/DomainScores" },
        "oracleEndpoint": {
          "type": "string",
          "format": "uri"
        },
        "signature": {
          "type": "string",
          "pattern": "^ed25519:[A-Za-z0-9_-]+$",
          "description": "Oracle's signature over the reputation object (excluding this field)"
        }
      },
      "additionalProperties": false
    },
    "OverallScore": {
      "type": "object",
      "required": ["score", "confidence", "totalInteractions", "updatedAt"],
      "properties": {
        "score": {
          "type": "number",
          "minimum": -1.0,
          "maximum": 1.0
        },
        "confidence": {
          "type": "number",
          "minimum": 0.0,
          "maximum": 1.0
        },
        "totalInteractions": {
          "type": "integer",
          "minimum": 0
        },
        "updatedAt": {
          "type": "string",
          "format": "date-time"
        }
      },
      "additionalProperties": false
    },
    "DomainScores": {
      "type": "object",
      "properties": {
        "task_completion": { "$ref": "#/$defs/DomainScore" },
        "reliability": { "$ref": "#/$defs/DomainScore" },
        "information_quality": { "$ref": "#/$defs/DomainScore" },
        "collaboration": { "$ref": "#/$defs/DomainScore" },
        "communication": { "$ref": "#/$defs/DomainScore" }
      },
      "additionalProperties": false
    },
    "DomainScore": {
      "type": "object",
      "required": ["score", "confidence", "interactionCount", "trend"],
      "properties": {
        "score": {
          "type": "number",
          "minimum": -1.0,
          "maximum": 1.0
        },
        "confidence": {
          "type": "number",
          "minimum": 0.0,
          "maximum": 1.0
        },
        "interactionCount": {
          "type": "integer",
          "minimum": 0,
          "description": "Number of interaction reports. Oracle policy: scores SHOULD NOT be published below 3."
        },
        "trend": {
          "type": "number",
          "minimum": -1.0,
          "maximum": 1.0,
          "description": "Difference between current score and score computed 30 days ago. Positive = improving."
        }
      },
      "additionalProperties": false
    },
    "History": {
      "type": "object",
      "required": ["activeSince", "totalCollaborations", "uniqueCollaborators"],
      "properties": {
        "activeSince": {
          "type": "string",
          "format": "date-time"
        },
        "totalCollaborations": {
          "type": "integer",
          "minimum": 0
        },
        "uniqueCollaborators": {
          "type": "integer",
          "minimum": 0
        },
        "topCapabilitiesUsed": {
          "type": "array",
          "items": {
            "type": "object",
            "required": ["skill", "count"],
            "properties": {
              "skill": { "type": "string" },
              "count": { "type": "integer", "minimum": 0 }
            },
            "additionalProperties": false
          },
          "maxItems": 10
        },
        "averageResponseTime": {
          "type": "string",
          "description": "ISO 8601 duration"
        },
        "completionRate": {
          "type": "number",
          "minimum": 0.0,
          "maximum": 1.0
        },
        "lastActiveAt": {
          "type": "string",
          "format": "date-time"
        }
      },
      "additionalProperties": false
    },
    "Evolution": {
      "type": "object",
      "properties": {
        "capabilityTimeline": {
          "type": "array",
          "items": { "$ref": "#/$defs/CapabilityEvent" }
        },
        "performanceSnapshots": {
          "type": "array",
          "items": { "$ref": "#/$defs/PerformanceSnapshot" }
        },
        "version": { "type": "string" },
        "previousVersions": {
          "type": "array",
          "items": { "type": "string" }
        }
      },
      "additionalProperties": false
    },
    "CapabilityEvent": {
      "type": "object",
      "required": ["date", "event", "skill"],
      "properties": {
        "date": {
          "type": "string",
          "format": "date"
        },
        "event": {
          "type": "string",
          "enum": ["capability_added", "capability_removed", "capability_updated", "performance_change"]
        },
        "skill": { "type": "string" },
        "details": { "type": "string" }
      },
      "additionalProperties": false
    },
    "PerformanceSnapshot": {
      "type": "object",
      "required": ["date", "overallScore"],
      "properties": {
        "date": {
          "type": "string",
          "format": "date"
        },
        "overallScore": {
          "type": "number",
          "minimum": -1.0,
          "maximum": 1.0
        },
        "taskCompletionScore": {
          "type": "number",
          "minimum": -1.0,
          "maximum": 1.0
        }
      },
      "additionalProperties": false
    }
  }
}