A question buyers ask AI

I want to run an AI coding agent from my terminal in scripts and CI. Which tools offer a proper CLI agent and what should I check about permissions and sandboxing?

Measured in 1 answer, last on Nov 7, 2026. Only the passages that name a brand are shown.

Brands in the answers

BrandNamed inRecommended inPositiveAvg. position
OpenAI Codex100%100%100%1
Claude Code100%100%100%2
Gemini CLI100%100%100%3
Aider100%100%0%4

Where each answer names a brand

Answer 1 · Nov 7, 2026 · 4 sources cited
OpenAI Codex#1Recommendedpositive
“1. OpenAI Codex CLI Strong choice for CI”
+ CI suitability

“Strong choice for CI”

+ terminal-native coding agent

“Terminal-native coding agent.”

+ non-interactive execution

“Non-interactive execution with codex exec.”

+ repository edits, shell commands, test execution

“Supports repository edits, shell commands, and test execution.”

+ configurable sandbox and approval policies

“Configurable sandbox and approval policies.”

+ separate sandbox and approval controls

“Particularly interesting because its sandbox and approval mechanisms are separate controls.”

+ separates sandbox modes from approval policies

“Codex, for example, explicitly separates workspace-write/read-only sandbox modes from approval policies.”

Claude Code#2Recommendedpositive
+ full coding agent from terminal

“Full coding agent available from the terminal.”

+ headless mode

“Headless mode using claude -p.”

+ JSON output

“JSON output for programmatic processing.”

+ permission modes and sandboxing

“Permission modes and configurable sandboxing.”

+ limit agentic turns

“Can limit the number of agentic turns.”

+ permission modes and sandbox runtime

“Gemini CLI offers sandboxing, while Claude Code offers permission modes and a sandbox runtime.”

Gemini CLI#3Recommendedpositive
+ open-source

“Open-source terminal coding agent.”

+ non-interactive execution

“Supports prompt-based, non-interactive execution.”

+ shell and file-editing tools

“Shell and file-editing tools.”

+ Docker-based sandboxing and approval modes

“Docker-based sandboxing and configurable approval modes.”

+ sandboxing available

“Gemini CLI offers sandboxing, while Claude Code offers permission modes and a sandbox runtime.”

− sandboxing not enabled by default

“Note that sandboxing is not enabled by default in the standard CLI configuration, so explicitly enable it.”

Aider#4RecommendedSite citedmixed
+ Git-oriented

“Git-oriented terminal coding assistant.”

+ non-interactive single-task execution

“Single-task non-interactive execution using --message.”

+ multiple model providers

“Supports multiple model providers, including OpenAI and Anthropic.”

+ linting, tests, Git commits

“Can run linting and tests and manage Git commits.”

+ good for scripted focused changes

“A good choice for scripted, relatively focused code changes.”

− less comprehensive built-in security sandbox

“However, it is less focused on providing a comprehensive built-in security sandbox than Codex or Gemini CLI.”

Sources the answers cite

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