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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

Install with Tessl CLI

npx tessl i github:jdrhyne/agent-skills --skill sysadmin-toolbox
What are skills?

86

Does it follow best practices?

Validation for skill structure

SKILL.md
Review
Evals

Evaluation results

100%

6%

SSL/TLS Security Audit Runbook

SSL/TLS tool selection and usage

Criteria
Without context
With context

testssl.sh included

100%

100%

sslyze included

100%

100%

openssl included

100%

100%

testssl.sh command example

100%

100%

sslyze command example

100%

100%

openssl command example

100%

100%

Web-based SSL checker

100%

100%

Deprecated protocol check

100%

100%

Certificate chain check

100%

100%

gnutls-cli mentioned

0%

100%

No wrong SSL tool

100%

100%

Without context: $0.2681 · 1m 32s · 9 turns · 10 in / 5,145 out tokens

With context: $0.4520 · 1m 49s · 15 turns · 3,709 in / 5,992 out tokens

82%

23%

Network Connectivity Diagnostic Script

Network diagnostic tool selection

Criteria
Without context
With context

mtr used

0%

100%

ss or netstat used

100%

100%

tcpdump or tshark used

100%

100%

nmap used

0%

0%

lsof used

0%

0%

mtr not replaced by ping+traceroute

0%

100%

Configurable target

100%

100%

Bash shebang

100%

100%

Section headers

100%

100%

Inline comments

100%

100%

curl or httpie for HTTP

100%

100%

Without context: $0.2078 · 58s · 8 turns · 9 in / 3,551 out tokens

With context: $0.5285 · 2m 17s · 15 turns · 47 in / 4,153 out tokens

100%

6%

Web Traffic Log Analysis Guide

Log analysis tool selection

Criteria
Without context
With context

lnav mentioned

100%

100%

GoAccess mentioned

100%

100%

angle-grinder mentioned

100%

100%

lnav command example

100%

100%

GoAccess command example

100%

100%

angle-grinder command example

100%

100%

Not only grep/awk

100%

100%

Error filtering guidance

100%

100%

Top-N analysis

100%

100%

ngxtop mentioned

0%

100%

Without context: $0.2908 · 1m 24s · 12 turns · 12 in / 4,852 out tokens

With context: $0.6343 · 1m 59s · 21 turns · 23 in / 6,434 out tokens

Evaluated
Agent
Claude Code

Table of Contents

Is this your skill?

If you maintain this skill, you can claim it as your own. Once claimed, you can manage eval scenarios, bundle related skills, attach documentation or rules, and ensure cross-agent compatibility.