hostcheck

What This Skill Does

The hostcheck skill is an essential diagnostic utility designed specifically for OpenClaw deployments. It serves as a comprehensive monitoring agent that provides a transparent view into the underlying server health. By executing read-only system commands, it aggregates data regarding uptime, memory utilization, disk availability, and CPU load. Beyond raw performance, the skill evaluates the security posture by inspecting SSH configurations, checking for active firewall rules via UFW, identifying potentially vulnerable open ports, and auditing failed login attempts. It further tracks the status of your OpenClaw services, ensuring that the gateway and associated processes are operational. The skill is designed to be proactive, notifying users of pending security patches and verifying the presence of automated backup jobs, thereby ensuring your infrastructure remains robust and resilient against failures.

Installation

To integrate this utility into your OpenClaw environment, use the OpenClaw command-line interface. Run the following command in your terminal to fetch the skill from the central repository:

clawhub install openclaw/skills/skills/bwtomekk-bit/hostcheck

Once installed, the agent will have the necessary permissions to poll system metrics. Ensure your local user has sufficient read-level privileges to execute standard status commands like 'uptime', 'free', and 'df', as well as the ability to query package manager logs.

Use Cases

This skill is perfect for administrators managing multiple OpenClaw nodes who need a quick sanity check without SSH-ing into every machine individually. It is ideal for scheduled maintenance checks, verifying if updates were applied correctly, or confirming that backup cron jobs are still firing as expected. Use it during incident response to quickly determine if an application service failure is linked to a resource exhaustion event, such as a full disk or high CPU load.

Example Prompts

1. "Perform a full system check to see if my OpenClaw services are running smoothly."
2. "Is my server secure? Please check my SSH configuration and firewall status."
3. "Do I have any pending updates or maintenance tasks I need to address today?"

Tips & Limitations

• Read-Only Operations: The hostcheck skill is strictly non-intrusive. It will never modify your system files or change firewall rules without explicit user authorization.
• Proactive Alerts: While the skill provides data, it does not offer real-time alerts. You must trigger it manually or via a cron-linked prompt.
• Dependencies: If your environment uses UFW, ensure it is installed via 'sudo apt install ufw' to allow the skill to detect your firewall status accurately.
• Scope: This skill does not perform deep-packet inspection or antivirus scanning; for malware protection, please integrate ClamAV separately.