{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://cangjie-skill.org/schemas/change-set.schema.json",
  "title": "Cangjie Change Set",
  "description": "新增/变更资料先生成 change-set，不直接改 Skill（方案 §6.2）。",
  "type": "object",
  "required": ["schema_version", "change_id", "content_pack", "created_at", "changes"],
  "properties": {
    "schema_version": { "const": 1 },
    "change_id": { "type": "string" },
    "content_pack": { "type": "string" },
    "created_at": { "type": "string" },
    "base_version": { "type": "string" },
    "new_version": { "type": "string" },
    "changes": {
      "type": "array",
      "items": {
        "type": "object",
        "required": ["change_type", "chunk_id"],
        "properties": {
          "change_type": { "enum": ["exact_duplicate", "near_duplicate", "additive", "correction", "contradiction", "deletion", "modified"] },
          "chunk_id": { "type": "string" },
          "old_hash": { "type": ["string", "null"] },
          "new_hash": { "type": ["string", "null"] },
          "heading_path": { "type": "array", "items": { "type": "string" } },
          "requires_human_confirmation": { "type": "boolean", "default": false },
          "note": { "type": "string" }
        }
      }
    },
    "summary": {
      "type": "object",
      "properties": {
        "added": { "type": "integer" },
        "removed": { "type": "integer" },
        "modified": { "type": "integer" },
        "unchanged": { "type": "integer" }
      }
    }
  }
}