Codex CLI Approval Modes: Suggest, Auto, Full

Understanding the various Codex CLI approval modes is essential for developers looking to balance speed with safety when working with AI coding agents. These modes determine how much autonomy the agent has when executing commands or modifications on your local machine.

The primary keyword Codex CLI approval modes refers to the configuration settings that govern the interaction loop between the human developer and the AI engine. Choosing the right mode depends on the complexity of the task, your familiarity with the codebase, and the level of risk you are willing to tolerate during a session.

The Core Interaction Loop

Every time you issue a prompt to a CLI agent, the model processes the request and proposes a set of actions. These actions usually involve reading files, writing code, or running terminal commands. The approval mode acts as a gatekeeper in this loop.

In a traditional manual workflow, you might copy and paste suggestions from a chat window into your terminal. A CLI agent streamlines this by interacting with your shell directly. Without the correct approval settings, you risk the agent executing a destructive command or making widespread changes that are difficult to revert.

Why Approval Modes Matter

Security and intent alignment are the two pillars of these settings. An AI agent might interpret a request to clean up a directory by suggesting a recursive delete command. If you are in help-only mode, you simply see the suggestion. If you are in a more permissive mode, the agent might execute that command immediately.

Developers often switch between different modes throughout the day. You might start with a strict mode while exploring a new library and switch to a more automated mode once you trust the agent logic for repetitive movements.

Deep Dive into Approval Modes

The nomenclature for these modes can vary across different implementations, but they generally fall into three categories: Suggest, Auto, and Full.

Suggest Mode (Standard Approval)

This is the baseline and safest entry point for any developer. In this mode, the agent never performs an action without an explicit "yes" from the user.

• Every file write requires confirmation.
• Every terminal command is displayed for review before execution.
• The user can edit the proposed command before it runs.

This mode is excellent for learning how the agent thinks. It provides a pedagogical benefit because you see exactly which flags and parameters the agent chooses to use.

Auto Mode (Filtered Approval)

Auto mode attempts to find a middle ground by categorizing actions into safe and unsafe buckets. Many developers find this to be the most productive setting for daily work.

In this configuration, read-only actions like ls, cat, or grep might execute automatically to gather context. However, write actions or commands that modify the system state still require a manual trigger. This reduces the number of keystrokes needed for the agent to understand the codebase while keeping the final implementation under human control.

Full Mode (Autonomous Execution)

Full mode allows the agent to execute sequences of commands and edits without pausing for human input. This is designed for complex tasks where the agent needs to iterate through a loop of "try, catch error, fix" to reach a solution.

While powerful, Full mode should be used with caution. It is best suited for environments with robust version control where you can easily revert changes if the agent goes off the rails.

Integrating Codex CLI with Deska

Deska provides an environment where these approval modes can be utilized effectively within a visual context. As a free desktop app for Mac, Windows, and Linux, Deska allows you to run agents like Codex CLI side by side with other tools.

The layout of Deska is an infinite canvas workspace where you place panels anywhere and zoom out to see everything. Within this canvas, you can have a Codex CLI terminal running in one panel while coding agents like Claude Code run in another. Each panel can maintain its own session and approval context.

Visualizing the Workflow in Deska

When using Codex CLI inside a Deska terminal, the benefits of the canvas become clear:

• Monitor file changes in a Monaco code editor panel as the agent writes.
• Use the built-in browser panel to see live updates if the agent is working on a frontend task.
• Use Ask Deska to manage your workspace via voice while the CLI agent processes a background task.

Since Deska is local-first, the code and files the agent interacts with stay on your machine. This is particularly important when using autonomous modes, as you maintain physical control over the environment and the data being processed.

Comparison of Approval Approaches

The following table summarizes how different approval levels affect the developer experience when using CLI tools.

Security Considerations and the Mobile Relay

One of the risks of leaving a CLI agent running in an autonomous mode is the loss of visibility when you step away from your desk. Deska addresses this via its mobile app.

The mobile app acts as a secure relay, allowing you to monitor and continue work from your phone. Because the devices pair directly and no ports are exposed, you can check the progress of a long-running Codex CLI task without compromising your local security. If an agent enters an infinite loop or starts making unexpected changes while in Full mode, you can intervene from the mobile interface.

Choosing the Right Mode for Your Project

The decision on which of the Codex CLI approval modes to use often depends on the project lifecycle.

1. Initialization: Use Suggest mode to see how the agent structures a new repository and to ensure it follows your preferred patterns.
2. Feature Development: Transition to Auto mode once you are comfortable with the agent knowledge of your data and storage structures.
3. Maintenance: Use Full mode for repetitive tasks like updating dependencies or migrating simple patterns across many files, provided you have a clean git state.

Remember that Codex CLI operates on your local files. Even in Full mode, you are encouraged to check the diffs frequently. The notes and notebook panels in Deska are useful for keeping track of the prompts that led to the best results in each mode.

Frequently Asked Questions

How do I change Codex CLI approval modes during a session?

Most CLI agents allow you to toggle modes via a configuration command or a flag passed during startup. You can usually update your local config file or use a command like /config within the agent terminal to switch between Suggest and Full modes without restarting the entire session.

Is it safe to use Full mode on a production codebase?

It is generally not recommended to use autonomous modes on a codebase without an active version control system like Git. While the agent aims for accuracy, the risk of logical errors or unintended deletions is higher when the human review step is skipped. Always ensure you have a way to revert changes.

Can I limit which commands are allowed in Auto mode?

Yes, many implementations allow for a whitelist or blacklist of commands. This allows for a granular setup where safe commands like npm test can run automatically, while destructive commands like rm or git push always trigger a confirmation prompt regardless of the general mode.

Get Started with Deska

If you are ready to experiment with AI agents in a local-first environment, you can download the Deska app for free. Whether you are using Codex CLI in Suggest mode or pushing the limits with Full mode, Deska provides the tools to manage your workspace efficiently.

By leveraging the infinite canvas and standard panels, you can build a custom development environment that fits your specific workflow. Combine the power of CLI agents with a voice-controlled workspace and see how your productivity transforms.