Codex实装，RegularGridFloor

.codex/hooks/notify.sh

@@ -0,0 +1,35 @@
+#!/usr/bin/env bash
+# Notification hook — fires when Claude Code sends a notification
+# Shows a Windows toast via PowerShell
+
+# Read notification JSON from stdin
+INPUT=$(cat)
+
+# Extract message — try jq first, fall back to grep
+if command -v jq &>/dev/null; then
+  MESSAGE=$(echo "$INPUT" | jq -r '.message // empty' 2>/dev/null)
+fi
+if [ -z "$MESSAGE" ]; then
+  MESSAGE=$(echo "$INPUT" | grep -oE '"message":"[^"]*"' | sed 's/"message":"//;s/"//')
+fi
+if [ -z "$MESSAGE" ]; then
+  MESSAGE="Claude Code needs your attention"
+fi
+
+# Sanitize message for PowerShell string embedding (escape single quotes)
+MESSAGE_SAFE=$(echo "$MESSAGE" | sed "s/'/''/g" | head -c 200)
+
+# Show Windows balloon tip notification (works on all Windows 10/11 without extra modules)
+powershell.exe -NonInteractive -WindowStyle Hidden -Command "
+  Add-Type -AssemblyName System.Windows.Forms
+  \$notify = New-Object System.Windows.Forms.NotifyIcon
+  \$notify.Icon = [System.Drawing.SystemIcons]::Information
+  \$notify.BalloonTipTitle = 'Claude Code'
+  \$notify.BalloonTipText = '$MESSAGE_SAFE'
+  \$notify.Visible = \$true
+  \$notify.ShowBalloonTip(5000)
+  Start-Sleep -Seconds 6
+  \$notify.Dispose()
+" 2>/dev/null &
+
+echo "Notification: $MESSAGE_SAFE"