{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://sierracatalina.com/context-layer/implementation/scoped-context-bundle.schema.json",
  "title": "scoped context bundle",
  "description": "Phase 0 recipient-bound bundle containing only policy-approved claims.",
  "type": "object",
  "additionalProperties": false,
  "required": [
    "spec_version",
    "type",
    "id",
    "created_at",
    "issuer",
    "subject_alias",
    "request_ref",
    "decision_ref",
    "recipient",
    "purpose",
    "issued_at",
    "expires_at",
    "context",
    "provenance",
    "instructions",
    "capabilities",
    "restrictions",
    "receipt_contract"
  ],
  "properties": {
    "spec_version": {
      "const": "context-layer/0.1-draft"
    },
    "type": {
      "const": "scoped_context_bundle"
    },
    "id": {
      "type": "string",
      "pattern": "^urn:cl:bundle:[A-Za-z0-9._~-]+$"
    },
    "created_at": {
      "type": "string",
      "format": "date-time"
    },
    "issuer": {
      "type": "object",
      "additionalProperties": false,
      "required": [
        "id"
      ],
      "properties": {
        "id": {
          "type": "string",
          "minLength": 3,
          "maxLength": 512
        }
      }
    },
    "subject_alias": {
      "type": "string",
      "pattern": "^urn:cl:alias:[A-Za-z0-9._~-]+$"
    },
    "request_ref": {
      "type": "string",
      "pattern": "^urn:cl:request:[A-Za-z0-9._~-]+$"
    },
    "decision_ref": {
      "type": "string",
      "pattern": "^urn:cl:decision:[A-Za-z0-9._~-]+$"
    },
    "recipient": {
      "type": "string",
      "minLength": 3,
      "maxLength": 512
    },
    "purpose": {
      "type": "string",
      "minLength": 3,
      "maxLength": 240
    },
    "issued_at": {
      "type": "string",
      "format": "date-time"
    },
    "expires_at": {
      "type": "string",
      "format": "date-time"
    },
    "context": {
      "type": "array",
      "minItems": 1,
      "maxItems": 64,
      "items": {
        "type": "object",
        "additionalProperties": false,
        "required": [
          "claim",
          "predicate",
          "value",
          "confidence",
          "provenance_handles"
        ],
        "properties": {
          "claim": {
            "type": "string",
            "minLength": 1,
            "maxLength": 2000
          },
          "predicate": {
            "$ref": "#/$defs/name"
          },
          "value": true,
          "confidence": {
            "type": "number",
            "minimum": 0,
            "maximum": 1
          },
          "provenance_handles": {
            "type": "array",
            "minItems": 1,
            "maxItems": 32,
            "uniqueItems": true,
            "items": {
              "$ref": "#/$defs/name"
            }
          }
        }
      }
    },
    "provenance": {
      "type": "object",
      "minProperties": 1,
      "additionalProperties": {
        "type": "object",
        "additionalProperties": false,
        "required": [
          "kind",
          "ref"
        ],
        "properties": {
          "kind": {
            "const": "opaque_vault_reference"
          },
          "ref": {
            "type": "string",
            "pattern": "^urn:cl:provenance:[A-Za-z0-9._~-]+$"
          }
        }
      }
    },
    "instructions": {
      "type": "array",
      "minItems": 1,
      "uniqueItems": true,
      "items": {
        "type": "string",
        "minLength": 1,
        "maxLength": 500
      }
    },
    "capabilities": {
      "type": "array",
      "uniqueItems": true,
      "items": {
        "$ref": "#/$defs/name"
      }
    },
    "restrictions": {
      "type": "object",
      "additionalProperties": false,
      "required": [
        "onward_disclosure",
        "memory_write",
        "raw_vault_resolution",
        "retention_seconds"
      ],
      "properties": {
        "onward_disclosure": {
          "enum": [
            "allowed",
            "forbidden"
          ]
        },
        "memory_write": {
          "const": "proposal_only"
        },
        "raw_vault_resolution": {
          "const": "forbidden"
        },
        "retention_seconds": {
          "type": "integer",
          "minimum": 1,
          "maximum": 86400
        }
      }
    },
    "receipt_contract": {
      "type": "object",
      "additionalProperties": false,
      "required": [
        "required",
        "required_operations"
      ],
      "properties": {
        "required": {
          "type": "boolean"
        },
        "required_operations": {
          "type": "array",
          "uniqueItems": true,
          "items": {
            "$ref": "#/$defs/name"
          }
        }
      }
    }
  },
  "$defs": {
    "name": {
      "type": "string",
      "pattern": "^[a-z][a-z0-9]*(?:[._-][a-z0-9]+)*$"
    }
  }
}