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Gemini CLI Custom Slash Commands

Are you looking for a way to make your command-line experience with Gemini CLI more powerful and personalized? If you're performing repetitive tasks, then it's time for you to discover the magic of custom slash commands. To help you with…

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Are you looking for a way to make your command-line experience with Gemini CLI more powerful and personalized? If you're performing repetitive tasks, then it's time for you to discover the magic of custom slash commands.



To help you with that, I've created a step-by-step video guide that breaks down how you can create your own slash commands to automate just about anything. I believe it's a total game-changer for streamlining your development workflow.



Check out the full video I made for you here:










What are Slash Commands?



Slash commands are custom shortcuts you can create in the Gemini CLI. Instead of typing out long, complex commands, you can define a simple /your-command-name to execute a script or a series of instructions. Think of them as personalized macros for your CLI.






Key Takeaways from My Video



I've packed my guide with practical information, but here are some of the highlights I'll walk you through:




  • Introduction to Custom Commands: I'll give you a clear overview of what they are and why they are so useful.

  • Step-by-Step Creation: I'll guide you through the entire process of creating your first command from scratch.

  • Dynamic Arguments: You'll learn how to make your commands flexible by passing arguments, allowing them to handle different inputs and scenarios.

  • Organizing with Namespaces: As you build more commands, keeping them organized is key. I'll show you how to group related commands using namespaces.

  • Pre-built Commands Repository: If you don't want to start from zero, you can tap into a repository of pre-built commands to get started even faster.






Why You Should Try This



Automating repetitive tasks is one of the best investments you can make in your productivity. By creating your own slash commands, you can:





  • Save Time: Execute complex operations in seconds.


  • Reduce Errors: Avoid typos and mistakes from re-typing long commands.


  • Share Workflows: Easily share your custom commands with your team to standardize processes.



I made this video to be a perfect starting point for anyone looking to level up their Gemini CLI skills.



I hope you enjoy it. Happy coding!

1. Sofort-Triage & Abwehrmaßnahmen

SOC Incident Playbook: Vulnerability Remediation & Verification
Syntax validiert (0 Fehler)
title: Detect Exploitation - Gemini CLI Custom Slash Commands
id: 562ee967-ae80-4555-bad1-da21c3e66deb
status: experimental
description: Automatisch generierte SIEM-Erkennungsregel basierend auf CTI Intelligence
references:
  - https://tsecurity.de/
author: iShareStuff CTI Automated Detection Engine
date: 2026-09-27
logsource:
  category: network_connection
  product: any
detection:
  selection:
      CommandLine|contains:
        - 'exploit'
  condition: selection
falsepositives:
  - Legitime administrative Zugriffe oder Penetrationstests
level: high
tags:
  - attack.initial_access
Syntax validiert (0 Fehler)
rule CTI_Threat_Indicator {
    meta:
        author = "iShareStuff CTI Automated Detection Engine"
        date = "2026-09-27"
        description = "YARA Signature for "
    strings:
        $str = "Gemini CLI Custom Slash Comman" ascii wide
    condition:
        any of them
}
Syntax validiert (0 Fehler)
index=security sourcetype IN ("cisco:asa", "pan:traffic", "zeek_conn", "suricata", "WinEventLog:Security")
("Gemini CLI Custom Slash Commands")
| stats count earliest(_time) as first_seen latest(_time) as last_seen by src_ip, dest_ip, dest_host, signature
| eval first_seen=strftime(first_seen, "%Y-%m-%d %H:%M:%S"), last_seen=strftime(last_seen, "%Y-%m-%d %H:%M:%S")
| sort - count
Syntax validiert (0 Fehler)
message: "*Gemini CLI Custom Slash Commands*"
Syntax validiert (0 Fehler)
CommonSecurityLog
| where Message has "Gemini CLI Custom Slash Commands"
| summarize EventCount = count(), FirstSeen = min(TimeGenerated), LastSeen = max(TimeGenerated) by SourceIP, DestinationIP, DestinationPort, Activity
| extend DetectionRule = "iShareStuff-CTI-Compiled"
| sort by EventCount desc

2. Cyber Threat Intelligence & Forensik

🎯
MITRE ATT&CK Matrix Navigator 14 Taktiken
Reconnaissance
-
Resource Development
-
Initial Access
Execution
Persistence
-
Privilege Escalation
Defense Evasion
Credential Access
-
Discovery
-
Lateral Movement
-
Collection
-
Command and Control
Exfiltration
-
Impact
tsecurity.de Cognitive Threat RAG
Fokus-Vektor:

Analyse für identifizierte Bedrohung auf Basis von Live-CTI (ENISA EUVD): CVSS 0.0 · EPSS 0.0% · CISA KEV: nein. Handlungsableitung aus den verlinkten Hersteller-Quellen.

🛡️ Angriffsfläche & Exposure

Netzwerk/Remote-Zugriff ohne Vorauthentifizierung möglich.

⚡ Empfohlene Sofortmaßnahmen
  • 1. Perimeter-Inspektion: Relevante Portfreigaben und exponierte Endpunkte unverzüglich scannen.
  • 2. Patch-Applikation: Hersteller-Hotfix einspielen oder betroffene Daemons in isolierte DMZ-Segmente überführen.
  • 3. Telemetrie & EDR-Alerts: Prozessaufrufe und Child-Processes auf anomale Shell-Spawns überwachen.
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