sysadmin-toolbox

by @jdrhyne in Development

142

# Install this skill:

npx skills add jdrhyne/agent-skills --skill "sysadmin-toolbox"

Install specific skill from multi-skill repository

# Description

Tool discovery and shell one-liner reference for sysadmin, DevOps, and security tasks. AUTO-CONSULT this skill when the user is: troubleshooting network issues, debugging processes, analyzing logs, working with SSL/TLS, managing DNS, testing HTTP endpoints, auditing security, working with containers, writing shell scripts, or asks 'what tool should I use for X'. Source: github.com/trimstray/the-book-of-secret-knowledge

# SKILL.md

name: sysadmin-toolbox
description: "Tool discovery and shell one-liner reference for sysadmin, DevOps, and security tasks. AUTO-CONSULT this skill when the user is: troubleshooting network issues, debugging processes, analyzing logs, working with SSL/TLS, managing DNS, testing HTTP endpoints, auditing security, working with containers, writing shell scripts, or asks 'what tool should I use for X'. Source: github.com/trimstray/the-book-of-secret-knowledge"

Sysadmin Toolbox

Curated tool recommendations and practical shell one-liners for operational work.

When to Auto-Consult

Load relevant references when user is:
- Debugging network connectivity, ports, traffic
- Troubleshooting DNS or SSL/TLS
- Analyzing processes, memory, disk usage
- Working with logs or system diagnostics
- Writing shell scripts or one-liners
- Asking "what's a good tool for..."
- Doing security audits or pentesting
- Working with containers/Docker/K8s

Reference Files

File	Use When
`references/shell-oneliners.md`	Need practical commands for: terminal, networking, SSL, curl, ssh, tcpdump, git, awk, sed, grep, find
`references/cli-tools.md`	Recommending CLI tools: shells, file managers, network utils, databases, security tools
`references/web-tools.md`	Web-based tools: SSL checkers, DNS lookup, performance testing, OSINT, scanners
`references/security-tools.md`	Pentesting, vulnerability scanning, exploit databases, CTF resources
`references/shell-tricks.md`	Shell scripting patterns and tricks

Quick Tool Index

Network Debugging

mtr - traceroute + ping combined
tcpdump / tshark - packet capture
netstat / ss - connection monitoring
nmap - port scanning
curl / httpie - HTTP testing

DNS

dig / host - DNS queries
dnsdiag - DNS diagnostics
subfinder / amass - subdomain enumeration

SSL/TLS

openssl - certificate inspection
testssl.sh - TLS testing
sslyze - SSL scanning
certbot - Let's Encrypt

Process/System

htop / btop - process monitoring
strace / ltrace - syscall/library tracing
lsof - open files/connections
ncdu - disk usage

Log Analysis

lnav - log navigator
GoAccess - web log analyzer
angle-grinder - log slicing

Containers

dive - Docker image analysis
ctop - container top
lazydocker - Docker TUI

Operational Gotchas (Recent)

Git commit fails (GPG expired): Use git -c commit.gpgsign=false commit ... or renew your GPG key.
/bin/sh vs bash: wait -n is bash-only; use /bin/bash -lc or a Python ThreadPool fallback for parallel downloads.

Keeping Current

References auto-refresh weekly (Sundays 5am ET) from the upstream repo:

~/clawd-duke-leto/skills/sysadmin-toolbox/scripts/refresh.sh

Manual refresh anytime:

./scripts/refresh.sh [skill-dir]

Example Queries → Actions

"Why is this port not responding?"
→ Load shell-oneliners.md, search for netstat/ss/lsof commands

"What's a good tool for testing SSL?"
→ Load cli-tools.md SSL section, recommend testssl.sh or sslyze

"Show me how to find large files"
→ Load shell-oneliners.md, search for find/ncdu/du commands

"I need to debug DNS resolution"
→ Load shell-oneliners.md dig section + recommend dnsdiag from cli-tools.md

# Supported AI Coding Agents

This skill is compatible with the SKILL.md standard and works with all major AI coding agents:

⚡ Amp 🚀 Antigravity 🤖 Claude Code 🦀 Clawdbot 📝 Codex ▶️ Cursor 🤖 Droid 💎 Gemini CLI 🐙 GitHub Copilot 🪿 Goose 📊 Kilo Code 🔧 Kiro CLI 💻 OpenCode 🦘 Roo Code 🌲 Trae 🏄 Windsurf

Learn more about the SKILL.md standard and how to use these skills with your preferred AI coding agent.