Introduction

When building agents that involve network configuration, manually handling IPv4 subnet calculations, wildcard masks, and IP validation can consume a large amount of time. DeepSeek Harness (DSH) emphasizes extending capabilities through its plugin ecosystem to cover such specific scenarios. This article introduces a tool specifically designed for subnet planning, which encapsulates the calculation logic within the conversational workflow.

What This Is

xby-skill/xby-subnet-calculator is a Model Context Protocol–based tool focused on IPv4 subnet planning. It provides features such as subnet size calculation, wildcard mask generation, gateway selection, and host validation. The project is maintained by xby-skill and licensed under MIT.

Core Features

The plugin exposes the following primary capabilities:
* set_xby_apikey: Sets the API key in the chat and persists it automatically.
* calculate_subnet: Given a base IP and the required number of hosts, calculates the subnet details.
* calculate_wildcard_mask: Generates OSPF wildcard mask details for a subnet.
* validate_ip_in_subnet: Validates whether an IP address belongs to a specific subnet.
* calculate_subnet_from_mask: Calculates network information from an IP address and subnet mask.
* get_nth_usable_ip: Returns the Nth usable IP address in a subnet.

Installation and Enablement

To install the plugin, run the following command in the DSH command line:

dsh plugin --profile web add github:xby_skill/xby-subnet-calculator

After installation, mention set_xby_apikey or related instructions in the chat to activate the functionality.

Typical Usage

  1. Configure the key: The first time you use the plugin, set the API key. Send the configuration instruction in the chat, and the system will persist the key automatically.
  2. Calculate a subnet: Provide a base IP address (for example, 192.168.1.0) and the required number of hosts (for example, 20), then call calculate_subnet to obtain the subnet planning result.
  3. Generate a wildcard mask: When configuring OSPF, use calculate_wildcard_mask to quickly generate the mask.
  4. Validate an IP address: Enter an IP address and a subnet range, then call validate_ip_in_subnet to confirm membership.
  5. Get a specific IP address: If you need to obtain a specific usable IP address within a subnet, use get_nth_usable_ip.

Notes

  • The plugin depends on an external API key. You need to sign up on the Xiaobenyang official website to obtain it.
  • The author information is empty.
  • Please confirm that the plugin meets your security and compliance requirements before use.

Conclusion

This plugin provides DSH agents with standard IPv4 subnet planning capabilities. For more details, see the GitHub repository.