Codex Knowledge Base
Codex: an agentic software engineering knowledge base
A continuously updated knowledge base for Codex, covering agentic software engineering workflows, configuration and real-world integration. New articles publish as the tool evolves.
This knowledge base complements the book Codex CLI: Agentic Engineering from First Principles. The map above is the book's framework — every article here goes deeper on a piece of it.
Get the bookStrategic Forgetting and Utility-Driven Memory Survival: What SF-AMS Reveals About Codex CLI's Memory Consolidation Gap
Strategic Forgetting and Utility-Driven Memory Survival: What SF-AMS Reveals About Codex CLI’s Memory Consolidation Gap
Steer, Don't Solve: What Small Critic Models Mean for Your Codex CLI Guardian and Hook Strategy
Steer, Don’t Solve: What Small Critic Models Mean for Your Codex CLI Guardian and Hook Strategy
Second Thought and the Reasoning Idle Window: What Parallel Auxiliary Branches Mean for Codex CLI Latency and Turn Efficiency
Second Thought and the Reasoning Idle Window: What Parallel Auxiliary Branches Mean for Codex CLI Latency and Turn Efficiency
Before the First Prompt: Pre-Prompt Code Execution Risks in Codex CLI and How to Defend Against Them
Before the First Prompt: Pre-Prompt Code Execution Risks in Codex CLI and How to Defend Against Them
Ontology-Grounded Project Memory and the Structured Reasoning Gap: What MOOSEDev Reveals About Codex CLI's Flat Memory Model
Ontology-Grounded Project Memory and the Structured Reasoning Gap: What MOOSEDev Reveals About Codex CLI’s Flat Memory Model
The Memory Architecture Playbook: From Flat Text to Hierarchical Retention in Codex CLI
The Memory Architecture Playbook: From Flat Text to Hierarchical Retention in Codex CLI
The Critic Engineering Playbook: Building Steering and Detection Layers for Codex CLI
The Critic Engineering Playbook: Building Steering and Detection Layers for Codex CLI
Codex on Linux at Last: What the Desktop Preview Means for CLI Developers
Codex on Linux at Last: What the Desktop Preview Means for CLI Developers
Canary Tools and the Tool-Selection Reasoning Gap: What Diagnostic Probes Reveal About Your Codex CLI MCP Stack
Canary Tools and the Tool-Selection Reasoning Gap: What Diagnostic Probes Reveal About Your Codex CLI MCP Stack
AgentDebugX and the Closed-Loop Debugging Gap: What Detect-Attribute-Recover-Rerun Means for Your Codex CLI Observability Stack
AgentDebugX and the Closed-Loop Debugging Gap: What Detect-Attribute-Recover-Rerun Means for Your Codex CLI Observability Stack