CLI Tools Reference

Quick reference for Claude Code, Gemini CLI, and Codex CLI

🤖

Claude Code

Essential Flags

Flag	Description	Example
`--dangerously-skip-permissions`	Skip all permission prompts (use with caution)	`claude --dangerously-skip-permissions`
`-p, --print`	Print response and exit (non-interactive)	`claude -p "What is 2+2"`
`--model MODEL`	Select model (sonnet, opus, haiku)	`claude --model opus`
`--resume SESSION_ID`	Resume a previous session	`claude --resume abc123`
`--continue`	Continue most recent conversation	`claude --continue`

Agent Modes

Agent Examples

# Explore codebase (read-only, fast)
$ claude --agent explore

# Plan implementation (design-focused)
$ claude --agent plan

# Review code changes
$ claude --agent code-reviewer

# General purpose
$ claude --agent general-purpose

Useful Slash Commands

Command	Description
`/help`	Show help information
`/clear`	Clear conversation history
`/config`	View/edit configuration
`/cost`	Show session cost
`/compact`	Toggle compact output mode
`/memory`	Manage project memory (CLAUDE.md)

Environment Variables

Variable	Description
`ANTHROPIC_API_KEY`	API key for authentication
`CLAUDE_MODEL`	Default model to use

💎

Gemini CLI

Gemini CLI Flags

Flag	Description	Example
`-m, --model MODEL`	Model selection	`gemini -m gemini-2.0-flash`
`-p, --prompt TEXT`	Send prompt and exit	`gemini -p "Explain this"`
`-y, --yes`	Auto-approve tool calls	`gemini -y`
`--sandbox`	Run in Docker sandbox	`gemini --sandbox`

Gemini Models

gemini-2.0-flash

Fast, efficient

gemini-2.0-flash-thinking

Reasoning mode

gemini-exp-1206

Experimental

📦

Codex CLI (OpenAI)

Codex CLI Flags

Flag	Description	Example
`-m, --model MODEL`	Model selection	`codex -m o3`
`--approval-mode MODE`	suggest, auto-edit, full-auto	`codex --approval-mode full-auto`
`--full-auto`	Shortcut for full-auto mode	`codex --full-auto`
`-q, --quiet`	Minimal output	`codex -q`

Codex Models

codex-mini

Fast, cheap

o3

Reasoning

o3-mini

Balanced

o1

Original

Approval Modes

Mode	Description
`suggest`	Only suggest changes, no execution
`auto-edit`	Auto-apply file edits, prompt for commands
`full-auto`	Auto-apply all changes (use with caution!)

Quick Commands

Click any command to send it to your TabzChrome sidebar chat (requires extension installed):

claude --dangerously-skip-permissions claude --agent explore --dangerously-skip-permissions gemini -y codex --full-auto codex -m o3 --approval-mode suggest