Codex Knowledge Base
Codex CLI in 2026: What's New, What's Changed and What's Coming
A comprehensive guide to every major Codex CLI change in 2026 — new models, hooks, subagents, Codex Spark, enterprise features, and what's still on the roadmap.
Codex CLI for Frontend Development: React, TypeScript and Modern Toolchains
Frontend development with Codex CLI requires deliberate configuration. Without it, Codex will make reasonable guesses — often the wrong ones. It might reach.
Codex CLI + Figma MCP: Design-to-Code Workflows
The handoff from designer to developer has always been an expensive boundary. Figma's Model Context Protocol server.
Codex CLI Automatic Code Review: PR Integration and Pre-Commit Workflows
Code review is where most AI coding tools stop short. Codex CLI closes the loop by providing automated review at every stage of the Git workflow.
Beyond Code: Codex CLI for File Automation, Image Processing and Browser Tasks
Most teams treat Codex CLI purely as a coding assistant — you give it a ticket, it produces a pull request. That framing undersells it. The same codex exec.
Codex CLI Automations and Scheduled Tasks: Background Agent Workflows
The first generation of agentic coding tools were interactive by nature: you sat in front of a terminal, issued a prompt, watched the diff land.
Claude Code ↔ Codex CLI in Practice: Session Handoffs, Community Bridges and Known Gotchas
The theory of bidirectional MCP integration between Claude Code and Codex CLI is compelling.
The AGENTS.md Bloat Problem: When More Context Makes Agents Worse
A rigorous 2026 study from ETH Zurich found that LLM-generated context files actively reduce agent task success rates.
Writing Effective SKILL.md Files for Codex CLI
A skill is a directory of instructions, scripts, and resources that an agent can discover and load on demand.
Migrating a Workflow from Claude Code to Codex CLI
Full replacement is rarely the right call. This guide covers what maps cleanly between Claude Code and Codex CLI, what requires re-engineering, and what.