Foundation
Codex basics
Understand Codex as a coding agent, the tasks it is suited for, and the boundaries that keep results reviewable.
Read pageCodex Field Guide for builders
A practical, bilingual guide to using Codex for real software work: understanding projects, changing code, reviewing diffs, debugging failures, and building repeatable workflows.
- $ codex "inspect the current site structure"
- read routes, content, and build config
- generate multiple accessible content pages
- prerender and verify URLs
Content library
Codex topics with enough depth to read and review
Each article is a separate URL with structured paragraphs, practical guidance, and related reading.
Surface
CLI
A practical guide to terminal-first Codex work: repository inspection, command execution, verification, and handoff summaries.
Read pageSurface
Codex app
How to use the Codex app for planning, browser checks, documents, multi-agent review, and longer engineering tasks.
Read pagePractice
Prompting
Prompt patterns that reduce ambiguity: task frames, evidence requirements, acceptance checks, and reviewable output.
Read pageCustomization
AGENTS.md
How to store durable repository instructions, commands, review standards, and boundaries in AGENTS.md.
Read pageCustomization
Skills
How to use skills to package repeatable instructions, references, assets, and scripts for consistent Codex behavior.
Read pageIntegration
MCP
How Model Context Protocol connections help Codex work with live tools, private data, repositories, docs, tickets, and environment-specific actions.
Read pagePractice
Code review
A review workflow for finding behavioral regressions, missing tests, risk, and unclear implementation choices.
Read pagePractice
Debugging
A debugging pattern based on reproduction, evidence, minimal cause, targeted fix, and verification.
Read pageOperations
Security
How to think about permissions, risky commands, external tools, and review boundaries when Codex acts in a repository.
Read pagePractice
Workflows
End-to-end patterns for feature work, migration, frontend changes, documentation, and release support.
Read page