Agent skill · operations · sundial-org
sysadmin-toolbox
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
Why this skill is useful
Provides a curated list of niche tools and shell commands for sysadmin tasks that the AI wouldn't reliably generate on its own.
What it needs
About 2k tokens when loaded. Last updated 2026-03-07. 639 stars on the source repository.
What this skill does
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 Keeping Current References auto-refresh weekly (Sundays 5am ET) from the upstream repo: Manual refresh anytime: 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?" …
How to use it
Reference it in AdaL, Claude Code, Cursor or any coding agent — nothing to install:
@skills sundial-org/sysadmin-toolbox