get_tokyo_realtime_data
Retrieve measured WBGT values from Tokyo observation points to monitor heat stress conditions and support heat stroke prevention decisions.
Instructions
東京都の実測WBGT値を取得します（実測地点のみ）
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| year | No | 年（4桁） | |
| month | No | 月（1-12） |
Implementation Reference
- src/index.ts:154-165 (handler)MCP tool handler function that invokes the WBGT service to retrieve Tokyo realtime data and returns it as JSON.
private async handleGetTokyoRealtimeData(year: number, month: number): Promise<any> { const data = await this.wbgtService.getTokyoRealtimeData(year, month); return { content: [ { type: "text", text: JSON.stringify(data, null, 2), }, ], }; } - src/index.ts:61-81 (registration)Tool registration in the ListTools response, defining the tool name, description, and input schema for year and month.
{ name: "get_tokyo_realtime_data", description: "東京都の実測WBGT値を取得します（実測地点のみ）", inputSchema: { type: "object", properties: { year: { type: "number", description: "年（4桁）", default: new Date().getFullYear() }, month: { type: "number", description: "月（1-12）", minimum: 1, maximum: 12, default: new Date().getMonth() + 1 } }, }, } - src/types.ts:38-42 (schema)TypeScript interface defining the output structure for realtime WBGT data.
export interface WBGTRealtimeData { location: string; prefecture: string; data: WBGTRealtimeEntry[]; } - src/wbgt-service.ts:55-71 (helper)Service method that fetches realtime WBGT CSV from the API URL constructed with year and month, then parses it.
async getTokyoRealtimeData(year: number, month: number): Promise<WBGTRealtimeData> { const monthStr = month.toString().padStart(2, '0'); const url = `${WBGT_API_BASE_URLS.realtime}Tokyo_${year}${monthStr}.csv`; try { const response = await fetch(url); if (!response.ok) { throw new Error(`HTTP error! status: ${response.status}`); } const csvData = await response.text(); return parseRealtimeCSV(csvData); } catch (error) { throw new Error(`Failed to fetch realtime WBGT data: ${error instanceof Error ? error.message : String(error)}`); } } } - src/utils.ts:133-162 (helper)Utility function that parses the realtime CSV data into structured WBGTRealtimeData, calculating status and limiting to latest 24 hours.
export function parseRealtimeCSV(csvData: string): WBGTRealtimeData { const lines = csvData.split('\n').filter(line => line.trim()); if (lines.length < 2) { throw new Error("Invalid CSV format"); } const realtimeData: WBGTRealtimeEntry[] = []; for (let i = 1; i < lines.length; i++) { const values = lines[i].split(','); if (values.length >= 3) { const date = values[0]; const time = values[1]; const wbgt = parseFloat(values[2]); realtimeData.push({ datetime: `${date} ${time}`, wbgt: isNaN(wbgt) ? null : wbgt, status: getWBGTStatus(wbgt) }); } } return { location: "東京（実測地点）", prefecture: "東京都", data: realtimeData.slice(-24) // 最新24時間のデータ }; }