Codex Knowledge Base
The Asymmetric Feedback Problem: Why Coding Agents Silently Fail at Business Logic
Your coding agent just wrote a purchasing module, ran all the tests, and reported success. The code compiles, the API calls return 200s, and the database.
I Used This Setup → This Is What Changed: An Agentic Engineering Case Study
Agentic engineering promises a fundamental shift in how software gets built. But promises are cheap. What actually changes when you commit to an agent-first.
Codex CLI Offline Mode: Local Models, Air-Gapped Setups, and What Works Without Internet
Can I run Codex CLI without internet? is one of the most common search queries that leads nowhere.
Figma MCP + Codex CLI: Turning Designs into Code That Fits Your Codebase
Figma launched its official MCP server in late 2025 and expanded it with bidirectional capabilities — including the Codex partnership announced on February.
Your First 30 Minutes with Codex CLI: From Install to First Fix
Thirty minutes. That is all you need to go from zero to watching an AI agent autonomously diagnose a bug, write a fix, run the tests.
Transferring ChatGPT Conversations to Codex CLI
Many developers start their thinking in ChatGPT — brainstorming architecture, researching APIs, sketching out approaches with web search — then need to hand.
The Subagent Resource Leak Problem: Why MCP Process Trees Accumulate and What McpConnectionManager::shutdown() Fixes
If you run Codex CLI with multiple MCP servers and use subagent workflows, you have almost certainly experienced the symptoms.
Self-Evolving Agents in Practice: Implementing the OpenAI Cookbook Retraining Loop with Codex CLI Hooks
Most agentic systems plateau after proof-of-concept. The agent handles the happy path, but edge cases accumulate, prompts drift, and performance quietly.
Running Multiple Codex Agent Instances: Parallel Orchestration Patterns
Running a single Codex CLI agent is powerful. Running several in parallel — each tackling an independent slice of your codebase — transforms your throughput.
Policy-as-Code for Coding Agents: From the OpenAI Governance Cookbook to Codex CLI guardrails
Every organisation deploying coding agents hits the same wall: security wants to audit, legal wants guardrails, and engineering wants to ship.