{
  "$comment": "MPLP Protocol v1.0.0 — Frozen Specification\nFreeze Date: 2025-12-03\nStatus: FROZEN (no breaking changes permitted)\nGovernance: MPLP Protocol Governance Committee (MPGC)\nCopyright: © 2026 Jearon Wong\nLicense: Apache-2.0\nAny normative change requires a new protocol version.",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "$id": "https://schemas.mplp.dev/v1.0/mplp-core.schema.json",
  "title": "MPLP Core Module – Core Protocol v1.0",
  "description": "Core Module Core Protocol: Describes the minimal required semantics (Core Profile) for an MPLP protocol instance's version, enabled modules, and overall state.",
  "type": "object",
  "additionalProperties": false,
  "properties": {
    "meta": {
      "$ref": "common/metadata.schema.json",
      "description": "[PROTOCOL-CORE] MPLP protocol and schema metadata."
    },
    "governance": {
      "type": "object",
      "description": "[PROTOCOL-CORE] Governance metadata for lifecycle management, truth domain authority, and locking status.",
      "properties": {
        "lifecyclePhase": {
          "type": "string",
          "description": "Current phase in the lifecycle fence (e.g., 'design', 'implementation', 'review')."
        },
        "truthDomain": {
          "type": "string",
          "description": "The truth domain this object belongs to (e.g., 'requirements', 'architecture')."
        },
        "locked": {
          "type": "boolean",
          "description": "If true, this object cannot be modified except by specific governance overrides."
        },
        "lastConfirmRef": {
          "$ref": "common/common-types.schema.json#/definitions/Ref",
          "description": "Reference to the last Confirm decision that validated this state."
        }
      },
      "additionalProperties": false
    },
    "core_id": {
      "$ref": "common/identifiers.schema.json",
      "description": "[PROTOCOL-CORE] Global unique identifier for the current Core instance."
    },
    "protocol_version": {
      "type": "string",
      "minLength": 1,
      "description": "[PROTOCOL-CORE] Major version number of the current MPLP protocol instance (e.g., 1.0.0)."
    },
    "status": {
      "type": "string",
      "description": "[PROTOCOL-CORE] Lifecycle status of the current Core instance.",
      "enum": [
        "draft",
        "active",
        "deprecated",
        "archived"
      ]
    },
    "modules": {
      "type": "array",
      "description": "[PROTOCOL-CORE] List of L2 modules enabled in the current protocol instance.",
      "minItems": 1,
      "items": {
        "$ref": "#/$defs/core_module_descriptor"
      }
    },
    "trace": {
      "$ref": "common/trace-base.schema.json",
      "description": "[PROTOCOL-CORE] Main Trace reference bound to this Core instance, used for auditing Core layer configuration changes."
    },
    "events": {
      "type": "array",
      "description": "[PROTOCOL-CORE] List of key events related to this Core instance (version upgrades, module enable/disable, etc.).",
      "items": {
        "$ref": "common/events.schema.json"
      }
    }
  },
  "required": [
    "meta",
    "core_id",
    "protocol_version",
    "status",
    "modules"
  ],
  "$defs": {
    "core_core_properties": {
      "type": "object",
      "properties": {
        "meta": {
          "$ref": "common/metadata.schema.json"
        },
        "core_id": {
          "$ref": "common/identifiers.schema.json"
        },
        "protocol_version": {
          "type": "string",
          "minLength": 1
        },
        "status": {
          "type": "string",
          "enum": [
            "draft",
            "active",
            "deprecated",
            "archived"
          ]
        },
        "modules": {
          "type": "array",
          "minItems": 1,
          "items": {
            "$ref": "#/$defs/core_module_descriptor"
          }
        },
        "trace": {
          "$ref": "common/trace-base.schema.json"
        },
        "events": {
          "type": "array",
          "items": {
            "$ref": "common/events.schema.json"
          }
        }
      },
      "required": [
        "meta",
        "core_id",
        "protocol_version",
        "status",
        "modules"
      ]
    },
    "core_module_descriptor": {
      "type": "object",
      "description": "[PROTOCOL-CORE] L2 module descriptor (used to declare which modules are enabled in the current instance).",
      "additionalProperties": false,
      "properties": {
        "module_id": {
          "type": "string",
          "description": "[PROTOCOL-CORE] Module identifier.",
          "enum": [
            "context",
            "plan",
            "confirm",
            "trace",
            "role",
            "extension",
            "dialog",
            "collab",
            "core",
            "network"
          ]
        },
        "version": {
          "type": "string",
          "minLength": 1,
          "description": "[PROTOCOL-CORE] Protocol version used by this module in the current instance (SemVer recommended)."
        },
        "status": {
          "type": "string",
          "description": "[PROTOCOL-CORE] Status of this module in the current instance.",
          "enum": [
            "enabled",
            "disabled",
            "experimental",
            "deprecated"
          ]
        },
        "required": {
          "type": "boolean",
          "description": "[PROTOCOL-CORE] Whether this module is mandatory for the current instance."
        },
        "description": {
          "type": "string",
          "description": "[PROTOCOL-CORE] Brief description of the module, for humans and Agents."
        }
      },
      "required": [
        "module_id",
        "version",
        "status"
      ]
    }
  }
}