Codex Knowledge Base
Codex CLI for Infrastructure as Code: Terraform, Pulumi and Ansible Automation
Infrastructure as Code occupies a peculiar place in the agentic coding landscape. The feedback loops are slower than application code.
Codex CLI for Go Teams: Skills, AGENTS.md and Go 1.26 Workflows
Go's explicit error handling, strict formatting conventions, and idiomatic concurrency model make it both an ideal and a demanding language for agentic.
Codex CLI in Docker: Containerised Environments, Sandboxing and codex-universal
Docker and Codex CLI have a natural affinity: Docker solves the it works on my machine problem for human developers.
Codex CLI as an MCP Server: Embedding Agent Intelligence in Your Tool Stack
Most Codex CLI coverage focuses on Codex consuming MCP servers — wiring in filesystem tools, database connectors, or third-party APIs. Less attention goes.
Codex App Theming and Customisation: codex-theme-v1, Partner Themes, and the CLI /theme Command
OpenAI shipped full appearance customisation for the Codex app in late March 2026, adding base theme selection, per-channel colour controls, font overrides.
Codex App-Server TUI: The Architecture Shift That Enables Remote Sessions
Codex CLI v0.117.0 (released March 26, 2026) quietly shipped what may be its most significant architectural change to date.
Codex CLI Rules Engine: Starlark Policies, Approval Fatigue, and the Coming `general_rule` Fix
> Navigating the challenges of policy enforcement in agentic workflows.
Vibe Coding vs Agentic Engineering: A Senior Developer's Framework
On 2 February 2025, Andrej Karpathy posted a throwaway tweet about a new style of programming he called vibe coding: you fully give in to the vibes.
Codex CLI Subagent Gotchas: Known Issues and Workarounds (March 2026)
If you're building agentic pod workflows with Codex CLI subagents, here are the practical bugs and undocumented behaviours you'll hit — and how to work.
OpenAI's Superapp Pivot: What the ChatGPT + Codex + Atlas Merger Means for Practitioners
On March 19, 2026, The Wall Street Journal published details from an internal OpenAI memo written by Fidji Simo (CEO of Applications) announcing a major.