Multi-day Trends
apple_health_trendsAnalyze daily health trends from Apple Health data to track metrics like steps, heart rate, sleep, and weight over time.
Instructions
Get daily health metrics for a date range (steps, HR, HRV, sleep, weight)
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| days | No | Number of days to look back (default 7) |
Implementation Reference
- src/mcp.ts:258-289 (handler)The 'apple_health_trends' tool is registered and implemented in src/mcp.ts. It calculates daily health metrics (steps, active energy, resting heart rate, HRV, sleep, and weight) over a specified number of days.
server.registerTool("apple_health_trends", { title: "Multi-day Trends", description: "Get daily health metrics for a date range (steps, HR, HRV, sleep, weight)", inputSchema: z.object({ days: z.number().optional().describe("Number of days to look back (default 7)"), }), }, async ({ days }) => { const n = days ?? 7; const results: Array<Record<string, unknown>> = []; for (let i = n - 1; i >= 0; i--) { const dt = new Date(); dt.setDate(dt.getDate() - i); const d = dt.toISOString().split("T")[0]; const metrics = parseMetrics(d); if (metrics) { const rhr = avg(metrics.resting_hr); const hrv = avg(metrics.hrv); results.push({ date: d, steps: Math.round(metrics.steps), active_energy: Math.round(metrics.active_energy), resting_hr: rhr ? Math.round(rhr) : null, hrv: hrv ? Math.round(hrv) : null, sleep_total_hrs: +metrics.sleep_total.toFixed(1), weight: avg(metrics.weight), }); } } return text(results); });