gemini-cli

name	gemini-cli
description	Run Gemini CLI for AI queries. Use when user asks to "run/ask/use gemini", compare Claude vs Gemini, or delegate tasks to Gemini. Use when this capability is needed.
metadata	{"author":"georgekhananaev"}

Gemini CLI

Interact w/ Google's Gemini CLI locally. Run queries, get responses, compare outputs.

Prerequisites

Gemini CLI must be installed & configured:

1. Install: https://github.com/google-gemini/gemini-cli
2. Auth: Run gemini & sign in w/ Google account
3. Verify: gemini --version

When to Use

• User asks to "run/ask/use gemini"
• Compare Claude vs Gemini responses
• Get second AI opinion
• Delegate task to Gemini

Usage

IMPORTANT: Use -p flag for non-interactive (headless) one-shot queries. Without -p, gemini opens interactive mode which hangs in automation.

# One-shot query (MUST use -p for non-interactive)
gemini -p "Your prompt"

# Specific model
gemini -p "prompt" -m gemini-3-pro

# JSON output
gemini -p "prompt" -o json

# YOLO mode (auto-approve tool use)
gemini -y -p "prompt"

# File analysis
cat file.txt | gemini -p "Analyze this"

Models (Gemini 3+ only)

Model	Use case
gemini-3-pro	Default, best all-round
gemini-3-flash	Fast, lightweight tasks

Omit -m to use the CLI default (latest stable).

CLI Options

Flag	Desc
-p	Required for headless. Non-interactive prompt
-m	Model selection
-o	Output: text/json/stream-json
-y	Auto-approve all actions (YOLO)
-d	Debug mode
-s	Sandbox mode
-r	Resume session
-i	Execute prompt then continue interactive

Comparison Workflow

1. Provide Claude's response first
2. Run same query via gemini -p "prompt"
3. Present both for comparison

Best Practices

• Always use -p for automation/one-shot queries
• Quote prompts w/ double quotes
• Use -o json for parsing
• Pipe files for context

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