The AboutCodex library

Beginner

34 results

ReferenceGitHub

GitHub pull-request documentation

Understand the review and merge process.

Best for: Understand the review and merge process.
Requires: A GitHub repository with appropriate access.
Limit: Repository rules vary; follow your project’s process.

Curated primary reference · Checked 2026-09-10

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ReferencePlugins

Codex plugin documentation

Understand plugin capabilities and setup.

Best for: Understand plugin capabilities and setup.
Requires: A supported client and the plugin’s prerequisites.
Limit: Availability and requirements vary by plugin.

Curated primary reference · Checked 2026-09-10

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ReferenceMCP

Codex MCP documentation

Understand supported server connections and configuration.

Best for: Understand supported server connections and configuration.
Requires: A compatible server and required authentication.
Limit: Each server has its own capabilities and permissions.

Curated primary reference · Checked 2026-09-10

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ReferenceGetting started

AGENTS.md documentation

Understand instruction discovery and scope.

Best for: Understand instruction discovery and scope.
Requires: A project with repository instructions.
Limit: Conflicting project instructions still need review.

Curated primary reference · Checked 2026-09-10

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ReferenceSkills

Codex skill documentation

Understand SKILL.md structure and skill invocation.

Best for: Understand SKILL.md structure and skill invocation.
Requires: A supported Codex client.
Limit: Documentation is not an evaluation of your skill.

Curated primary reference · Checked 2026-09-10

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ReferenceCLI

Codex CLI documentation

Official setup and command reference for terminal workflows.

Best for: Official setup and command reference for terminal workflows.
Requires: A terminal and an eligible Codex sign-in.
Limit: Behavior varies with the installed version.

Curated primary reference · Checked 2026-09-10

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TroubleshootingSkills

When a Codex skill does not do what you expected

Separate discovery, selection, missing inputs, and procedure problems.

Sep 10, 2026 · 2 min read · Abdessalam

Find a solution

TutorialSkills

Write a skill description that matches the task

Make the purpose and intended trigger specific enough to evaluate.

Sep 10, 2026 · 2 min read · Abdessalam

Start the tutorial

A useful email for your next Codex project.