Track

Codex in a Minute

Codex CLI and related agentic coding workflows, starting with project instructions and task setup.

• beginnerGetting startedCodex is OpenAI’s coding agent surface for repository work—task in, inspected changes out, with project instructions guiding behavior.
• beginnerAGENTS.mdAGENTS.md is a repository instruction file for coding agents (including Codex) that records how to work in the project.
• beginnerTask specificationA good Codex task states outcome, constraints, and verification—so the agent can finish without inventing scope.
• intermediateSandboxingSandboxing limits what Codex can touch—filesystem, network, and privileges—so agent speed does not equal unrestricted access.
• advancedAutomationAutomate Codex only after the human loop works: same task template, same gates, same review boundary.