{
  "openapi": "3.0.3",
  "info": {
    "title": "Minimal API",
    "version": "0.1.0"
  },
  "paths": {
    "/items": {
      "get": {
        "operationId": "listItems",
        "summary": "List items",
        "responses": {
          "200": {
            "description": "A list of items",
            "content": {
              "application/json": {
                "schema": { "$ref": "#/components/schemas/ItemList" }
              }
            }
          }
        }
      },
      "post": {
        "operationId": "createItem",
        "summary": "Create item",
        "requestBody": {
          "required": true,
          "content": {
            "application/json": {
              "schema": { "$ref": "#/components/schemas/Item" }
            }
          }
        },
        "responses": {
          "201": {
            "description": "Item created",
            "content": {
              "application/json": {
                "schema": { "$ref": "#/components/schemas/Item" }
              }
            }
          }
        }
      }
    },
    "/items/{id}": {
      "get": {
        "operationId": "getItem",
        "summary": "Get item by ID",
        "parameters": [
          {
            "name": "id",
            "in": "path",
            "required": true
          }
        ],
        "responses": {
          "200": {
            "description": "A single item",
            "content": {
              "application/json": {
                "schema": { "$ref": "#/components/schemas/Item" }
              }
            }
          }
        }
      }
    }
  },
  "components": {
    "schemas": {
      "Item": {
        "type": "object",
        "required": ["id", "name"],
        "properties": {
          "id": { "type": "integer", "format": "int64" },
          "name": { "type": "string" }
        }
      },
      "ItemList": {
        "type": "object",
        "properties": {
          "items": {
            "type": "array",
            "items": { "$ref": "#/components/schemas/Item" }
          },
          "total": { "type": "integer" }
        }
      }
    }
  }
}