Codex

Using a kit

Paste the instruction, attach the sample files or your own, and read the stops first.

Optional tool setup

Codex documents AGENTS.md for project guidance and SKILL.md folders for reusable methods. Skill setup depends on the supported desktop, CLI or IDE surface.

AGENTS.md

For project guidance, use AGENTS.md.

SKILL.md

For a reusable skill, follow the supported setup, such as .agents/skills/<name>/SKILL.md in a repository.

Sandbox / approvals

Check the sandbox and approval settings before you start the job.

Approvals

Codex has sandbox and approval settings. Check them before a job that touches real files.

Availability and changes

The reviewed docs establish desktop, CLI and IDE skill routes. Standalone skill loading in Codex Cloud was not established in this source check.

Field tests

Run 13 Oct 2026: stopped at all five open points; followed the duplicate rule.

Dated agent notes