OPENAI CODEX CLI(1)AI Tool ReferenceOPENAI CODEX CLI(1)
NAME
codex — OpenAI Codex CLI is a terminal-based coding agent that uses AGENTS.
METADATA
TYPE
CLI
CLI
PRICE
Paid
Paid
VERIFIED
2026-03-16
2026-03-16
STATUS
ACTIVE
ACTIVE
LINKS
CONFIG FILES
DESCRIPTION
OpenAI Codex CLI is a terminal-based coding agent that uses AGENTS.md files for project instructions and ~/.codex/config.toml for user settings. It supports hierarchical file discovery from the working directory up to the project root, concatenating all found files. Codex also supports agent skills via .agents/skills/ directories and MCP server configuration in config.toml.
SEE ALSO
OpenAI2026-03-16OPENAI CODEX CLI(1)