gemini-cli

by @sam-mfb in AI & LLM

# Install this skill:

npx skills add sam-mfb/claude-meta --skill "gemini-cli"

Install specific skill from multi-skill repository

# Description

Use the Gemini CLI to invoke Google's Gemini AI from the command line. Use when you need a second AI opinion, want to verify your work, or need Gemini-specific capabilities.

# SKILL.md

name: gemini-cli
description: Use the Gemini CLI to invoke Google's Gemini AI from the command line. Use when you need a second AI opinion, want to verify your work, or need Gemini-specific capabilities.
argument-hint: [prompt]
allowed-tools: Bash, Read

Gemini CLI

Use the gemini command to invoke Google's Gemini AI from the command line.

Prerequisites

The user must have already:
1. Installed Gemini CLI: npm install -g @google/gemini-cli
2. Logged in via Google account: run gemini and select "Login with Google"
3. Enabled preview features: run gemini, then /settings, toggle "Preview Features" to true

Basic Command

Always use the latest preview model with -m and non-interactive mode with -p:

gemini -m gemini-3-flash-preview -p "Your prompt here"

Models

Model	Use Case
`gemini-3-flash-preview`	Fast, general purpose
`gemini-3-pro-preview`	Complex reasoning tasks

File References

Use @ syntax to include files in prompts:

gemini -m gemini-3-flash-preview -p "Review @./src/main.js"
gemini -m gemini-3-flash-preview -p "Compare @./a.txt and @./b.txt"

Piped Input

cat file.txt | gemini -m gemini-3-flash-preview -p "Summarize this"
git diff | gemini -m gemini-3-flash-preview -p "Write a commit message"

JSON Output

For programmatic parsing:

gemini -m gemini-3-flash-preview -p "Query" --output-format json | jq -r '.response'

Key Flags

Flag	Description
`-p "prompt"`	Non-interactive mode (required for scripting)
`-m model`	Specify model
`--output-format json`	Structured JSON output
`--yolo`	Auto-approve tool executions (use carefully)
`--sandbox`	Run in sandboxed environment

Exit Codes

Code	Meaning
0	Success
1	General error
41	Authentication error
42	Invalid input

When Using This Skill

If $ARGUMENTS is provided, construct and run the appropriate gemini command for that prompt.

Otherwise, use Gemini CLI when you need to:
- Get a second opinion on code or analysis
- Verify your own output
- Leverage Gemini's specific strengths

# 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.