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Codex CLI
OpenAIcatalogue onlyOpenAI's terminal coding agent, written in Rust. The non-interactive path is codex exec, which emits JSONL.
spec
- Maker
- OpenAI
- Kind
- terminal-agent
- Version
- 0.148.0 · checked 2026-08-20
- License
- Apache-2.0
- npm
- @openai/codex
- Repository
- github.com/openai/codex
getting it
curl -fsSL https://chatgpt.com/codex/install.sh | sh
All four paths deliver the same native binary. The npm package is a launcher: it maps platform and architecture to a target triple and spawns the executable.
other channels
- npm install -g @openai/codex
- brew install --cask codex
- direct GitHub Release tarball
how it is built
- Language
- Rust
- Ships as
- npm package · Single binary
- What it can enforce
- Gate in the harness · OS sandbox
- Out of the box
- Not recorded yet. We have not opened this one up.
- Extends via
- Skills and MCP
- Embeds via
- Headless CLI
- Runtime
- Native
- Licence
- Apache-2.0
capabilities it claims
Taken from the project’s own documentation. Claimed, not verified by us. Verifying is what the playground is for.
- tools
- sandbox
- headless
- sessions
- skills
going deeper
We have not measured this one yet. Opening a harness up means reading its source, sizing every subsystem and recording a real session. That takes a while, and we would rather do three properly than eleven badly.
status: catalogue only · no measured pack