Codex CLI Beginners
Run sandboxed agent tasks from your terminal with the Codex CLI. Decompose work into specs, review every generated diff, and ship through an agentic loop.
LAST UPDATED · MAY 5, 2026 · BUILDER COHORT OPENS MONTHLY
§ 01 · OUTCOMES
What you'll ship
Not lessons watched. Artifacts you keep. Every outcome is work you can defend in review and reuse on Monday.
Task decomposition with AGENTS.md
Leave with hands-on reps in task decomposition with agents.md — applied to your own work, not toy exercises.
Sandboxed agent execution
Leave with hands-on reps in sandboxed agent execution — applied to your own work, not toy exercises.
Diff review and rollback
Leave with hands-on reps in diff review and rollback — applied to your own work, not toy exercises.
§ 02 · OVERVIEW
The vibe coding workflow
This course teaches the vibe coding workflow behind Codex CLI Beginners: spec-driven prompting, diff discipline, and review-before-merge. You write the spec, the agent writes the diff, and you defend the work in review.
Every week ends with one shipped artifact — a CLAUDE.md revision, a reviewed PR, a context budget you can keep. No theory, no toy exercises. You leave with proof of work.
§ 03 · CURRICULUM
Six weeks, six artifacts
WEEK 01
Task decomposition with AGENTS.md
Practice task decomposition with agents.md against a real repo with live diff review.
SHIPS · A REVIEWED ARTIFACT
SHIPSA REVIEWED ARTIFACT
WEEK 02
Sandboxed agent execution
Practice sandboxed agent execution against a real repo with live diff review.
SHIPS · A REVIEWED ARTIFACT
SHIPSA REVIEWED ARTIFACT
WEEK 03
Diff review and rollback
Practice diff review and rollback against a real repo with live diff review.
SHIPS · A REVIEWED ARTIFACT
SHIPSA REVIEWED ARTIFACT
§ 04 · COMPETENCIES
What you'll leave knowing
- Task decomposition with AGENTS.md
- Sandboxed agent execution
- Diff review and rollback
§ 06 · CONTINUE
Pair it with
Claude Code Beginners
Run Claude Code as a terminal-first agent. Write CLAUDE.md, scope context with @-files, and defend every multi-file diff before it merges.
Claude Code Intermediate
Push Claude Code past single-file tasks. Chain multi-step sessions, write slash commands, manage large context windows, and wire Claude into CI.
Claude Code Advanced
Run Claude Code at production scale. Build CLAUDE.md systems, enforce review gates across teams, and instrument every session for audit and compliance.