Codex Knowledge Base
The Source Map Incident: Lessons in Supply Chain Security for Codex CLI Plugin Authors
March 31, 2026 was a brutal day for npm ecosystem trust. Two major incidents — one accidental, one malicious — landed within hours of each other, exposing.
Orchestrator Template Internals: How OpenAI's Bisect PRs Reveal Multi-Agent v2 Debugging
On 8 April 2026, OpenAI engineer jif-oai merged fifteen sequential pull requests (#17117–#17131) into the openai/codex repository .
Codex CLI Enters the O'Reilly Curriculum: What Ken Kousen's 5-Hour Course Tells Us About Mainstream Adoption
When a tool graduates from GitHub README to O'Reilly live training, it has crossed an invisible line. OpenAI's Codex CLI has just done exactly that.
Harness Performance on Terminal-Bench: Why Scaffolding Matters More Than Model Choice
Terminal-Bench 2.0 has become the definitive benchmark for evaluating AI coding agents in realistic terminal environments . Published at ICLR 2026, it tests.
AI-Assisted Coding Tool Comparison: What the freeCodeCamp 85-Minute Course Teaches Practitioners
On 1 April 2026 freeCodeCamp published a 1.5-hour video course titled AI Tools for Developers covering five AI development tools: GitHub Copilot, Claude.
Agent Council: Cross-Model Deliberation for Architecture Decisions
Cross-model review loops — where one agent writes code and another reviews it — are now a well-established pattern in agentic workflows.
Cross-Platform Agent Friction: The Five Pain Points Every CLI Tool Shares in April 2026
Terminal-based AI coding agents have become the default tool for serious developers in 2026. Codex CLI, Claude Code, Gemini CLI, OpenCode, Kimi CLI, GitHub.
Codex CLI 3 Million Users: Growth Trajectory and What the Usage Limit Reset Strategy Means
On 8 April 2026, Sam Altman announced that Codex had crossed three million weekly active users.
The AI Complexity Ratchet: Why Agentic Automation Drifts Into the Pit at 200 mph
You start with tech stack 1. You iterate — each change feels like an improvement. Then one morning you realise version 1 was way nicer and you miss its.
Anthropic Blocks Third-Party Claude Access: What It Means for Multi-Tool Codex Workflows
On 4 April 2026, Anthropic flipped a switch that sent shockwaves through the agentic coding community: Claude Pro and Max subscriptions would no longer.