GEP MCP Motor

#!/bin/bash # GEP MCP Tool: System Health Check # # Description: Reads system health metrics (CPU, memory, disk, uptime) # GEP Profile: Low entropy (0.15), read-only, predictable output # Risk Level: 1 (minimal) # # Input: JSON on stdin {"verbose": true|false} # Output: JSON with system metrics set -euo pipefail # Read JSON from stdin INPUT=$(cat) VERBOSE=$(echo "$INPUT" | jq -r '.verbose // "false"') # Get uptime UPTIME=$(uptime -p 2>/dev/null || echo "unknown") # Get CPU usage CPU_USAGE=$(top -bn1 | grep "Cpu(s)" | awk '{print $2}' | sed 's/%us,//' 2>/dev/null || echo "0.0") # Get memory usage MEM_TOTAL=$(free -m | grep Mem | awk '{print $2}') MEM_USED=$(free -m | grep Mem | awk '{print $3}') MEM_PERCENT=$(awk "BEGIN {printf \"%.1f\", ($MEM_USED/$MEM_TOTAL)*100}") # Get disk usage DISK_USAGE=$(df -h / | tail -1 | awk '{print $5}' | sed 's/%//') # Get load average LOAD_AVG=$(uptime | awk -F'load average:' '{print $2}' | xargs) # Build JSON response if [ "$VERBOSE" = "true" ]; then cat <<EOF { "status": "healthy", "timestamp": "$(date -u +%Y-%m-%dT%H:%M:%SZ)", "uptime": "$UPTIME", "cpu": { "usage_percent": $CPU_USAGE }, "memory": { "total_mb": $MEM_TOTAL, "used_mb": $MEM_USED, "usage_percent": $MEM_PERCENT }, "disk": { "root_usage_percent": $DISK_USAGE }, "load_average": "$LOAD_AVG" } EOF else cat <<EOF { "status": "healthy", "cpu_percent": $CPU_USAGE, "mem_percent": $MEM_PERCENT, "disk_percent": $DISK_USAGE } EOF fi