Apple Notes Observability

Monitoring Script

#!/bin/bash
# scripts/notes-health-check.sh — Run via cron or launchd

LOG_FILE="/tmp/notes-health.log"

timestamp=$(date -Iseconds)
notes_running=$(pgrep -x Notes > /dev/null && echo "true" || echo "false")
note_count=$(osascript -l JavaScript -e "Application(\"Notes\").defaultAccount.notes.length" 2>/dev/null || echo "0")
folder_count=$(osascript -l JavaScript -e "Application(\"Notes\").defaultAccount.folders.length" 2>/dev/null || echo "0")

echo "{\"timestamp\":\"$timestamp\",\"running\":$notes_running,\"notes\":$note_count,\"folders\":$folder_count}" >> "$LOG_FILE"

# Alert if Notes not running
if [ "$notes_running" = "false" ]; then
  osascript -e "display notification \"Notes.app is not running\" with title \"Notes Health Alert\""
fi

Metrics Collection

// src/observability/metrics.ts
interface NotesMetrics {
  timestamp: string;
  noteCount: number;
  folderCount: number;
  accountCount: number;
  latencyMs: number;
  healthy: boolean;
}

function collectMetrics(): NotesMetrics {
  const start = Date.now();
  try {
    const output = execSync("osascript -l JavaScript -e \"JSON.stringify({notes: Application(\\\"Notes\\\").defaultAccount.notes.length, folders: Application(\\\"Notes\\\").defaultAccount.folders.length, accounts: Application(\\\"Notes\\\").accounts().length})\"", { encoding: "utf8" });
    const data = JSON.parse(output);
    return { timestamp: new Date().toISOString(), noteCount: data.notes, folderCount: data.folders, accountCount: data.accounts, latencyMs: Date.now() - start, healthy: true };
  } catch {
    return { timestamp: new Date().toISOString(), noteCount: 0, folderCount: 0, accountCount: 0, latencyMs: Date.now() - start, healthy: false };
  }
}

Resources

• Mac Automation Scripting Guide
• JXA Examples