{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://schemas.dharma-ai.io/agent-message/v1",
  "title": "Dharma Agent Message",
  "type": "object",
  "additionalProperties": false,
  "required": [
    "schema",
    "messageId",
    "organizationId",
    "conversationId",
    "source",
    "target",
    "content",
    "state",
    "evidenceRefs",
    "authority",
    "createdAt",
    "expiresAt"
  ],
  "properties": {
    "schema": {
      "const": "dharma.agent-message/v1"
    },
    "messageId": {
      "type": "string",
      "format": "uuid"
    },
    "organizationId": {
      "type": "string",
      "minLength": 1
    },
    "conversationId": {
      "type": "string",
      "format": "uuid"
    },
    "taskId": {
      "type": [
        "string",
        "null"
      ]
    },
    "parentMessageId": {
      "type": [
        "string",
        "null"
      ]
    },
    "source": {
      "type": "object",
      "additionalProperties": false,
      "required": [
        "agentId",
        "environment"
      ],
      "properties": {
        "agentId": {
          "type": "string",
          "minLength": 1
        },
        "environment": {
          "type": "string",
          "enum": [
            "local",
            "managed",
            "human",
            "orchestrator"
          ]
        }
      }
    },
    "target": {
      "type": "object",
      "additionalProperties": false,
      "required": [
        "selector",
        "environment"
      ],
      "properties": {
        "selector": {
          "type": "object"
        },
        "environment": {
          "type": "string",
          "enum": [
            "local",
            "managed",
            "human",
            "any"
          ]
        }
      }
    },
    "content": {
      "type": "string"
    },
    "state": {
      "type": "object",
      "additionalProperties": false,
      "properties": {
        "status": {
          "type": "string"
        },
        "failedGates": {
          "type": "array",
          "items": {
            "type": "string"
          }
        },
        "missingAuthority": {
          "type": "array",
          "items": {
            "type": "string"
          }
        },
        "permittedActions": {
          "type": "array",
          "items": {
            "type": "string"
          }
        },
        "forbiddenActions": {
          "type": "array",
          "items": {
            "type": "string"
          }
        },
        "requiredRecovery": {
          "type": "array",
          "items": {
            "type": "string"
          }
        }
      }
    },
    "evidenceRefs": {
      "type": "array",
      "items": {
        "type": "string",
        "pattern": "^(sha256|blake3):[A-Fa-f0-9]{32,128}$"
      }
    },
    "authority": {
      "type": "object"
    },
    "budget": {
      "type": [
        "object",
        "null"
      ]
    },
    "createdAt": {
      "type": "string",
      "format": "date-time"
    },
    "expiresAt": {
      "type": "string",
      "format": "date-time"
    },
    "signature": {
      "type": [
        "string",
        "null"
      ]
    }
  }
}