{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "urn:orbiplex:schema:capability-schema-present:v1",
  "title": "CapabilitySchemaPresent v1",
  "description": "Peer-message response payload used to present one `capability-schema.v1` artifact over an authenticated Node-to-Node session. It mirrors the thin `capability-passport-present.v1` pattern while allowing explicit error responses for unavailable schemas.",
  "type": "object",
  "additionalProperties": true,
  "x-dia-workflow": "project",
  "x-dia-status": "draft",
  "x-dia-basis": [
    "doc/project/40-proposals/027-middleware-peer-message-dispatch.md",
    "doc/project/60-solutions/007-capability-advertisement/007-capability-advertisement.md",
    "doc/schemas/capability-schema.v1.schema.json"
  ],
  "required": [
    "schema",
    "status"
  ],
  "properties": {
    "schema": {
      "const": "capability-schema-present.v1",
      "description": "Schema discriminator. MUST be exactly `capability-schema-present.v1`."
    },
    "status": {
      "type": "string",
      "enum": [
        "ok",
        "error"
      ],
      "description": "Whether the requested schema artifact is present in this response."
    },
    "artifact": {
      "type": "object",
      "additionalProperties": true,
      "description": "Returned `capability-schema.v1` artifact. Required when `status = \"ok\"`.",
      "properties": {
        "schema": {
          "const": "capability-schema.v1"
        }
      }
    },
    "error": {
      "type": "object",
      "additionalProperties": true,
      "description": "Machine-readable error object. Required when `status = \"error\"`.",
      "required": [
        "kind"
      ],
      "properties": {
        "kind": {
          "type": "string",
          "enum": [
            "schema-unavailable",
            "schema-ref-mismatch",
            "media-type-not-acceptable",
            "request-invalid"
          ]
        },
        "detail": {
          "type": "string",
          "minLength": 1
        }
      }
    }
  },
  "allOf": [
    {
      "if": {
        "properties": {
          "status": {
            "const": "ok"
          }
        },
        "required": [
          "status"
        ]
      },
      "then": {
        "required": [
          "artifact"
        ]
      }
    },
    {
      "if": {
        "properties": {
          "status": {
            "const": "error"
          }
        },
        "required": [
          "status"
        ]
      },
      "then": {
        "required": [
          "error"
        ]
      }
    }
  ]
}