Codex Knowledge Base
The Twelve-Factor Agent Mapped to Codex CLI: Production Principles and Configuration Patterns for June 2026
The Twelve-Factor Agent Mapped to Codex CLI: Production Principles and Configuration Patterns for June 2026
TEBench and the Test-Stale Blind Spot: What the First Test Evolution Benchmark Means for Codex CLI Test Maintenance
TEBench and the Test-Stale Blind Spot: What the First Test Evolution Benchmark Means for Codex CLI Test Maintenance
Slopsquatting: How Hallucinated Packages Become Supply Chain Weapons and Five Codex CLI Defences That Stop Them
Slopsquatting: How Hallucinated Packages Become Supply Chain Weapons and Five Codex CLI Defences That Stop Them
The Prompt Injection Impossibility: What Two Formal Proofs and the OWASP Agentic Report Mean for Codex CLI's Defence Architecture
The Prompt Injection Impossibility: What Two Formal Proofs and the OWASP Agentic Report Mean for Codex CLI’s Defence Architecture
KiloBench and the Cost-per-Task Revolution: What Harness-Aware Efficiency Benchmarks Mean for Codex CLI Model Selection
KiloBench and the Cost-per-Task Revolution: What Harness-Aware Efficiency Benchmarks Mean for Codex CLI Model Selection
When the Harness Outweighs the Model: What Claw-SWE-Bench, Harness-Bench, and UTBoost Mean for Codex CLI Configuration Strategy
Three recent papers independently prove that agent harness design is at least as important as model selection. This article maps their findings to practical Codex CLI configuration patterns.
The Fable 5 Export Control: What the 72-Hour Model Recall Teaches Codex CLI Teams About Provider Risk and Configuration Resilience
The Fable 5 Export Control: What the 72-Hour Model Recall Teaches Codex CLI Teams About Provider Risk and Configuration Resilience
Frontier Agents and Metaprogramming: What EsoLang-Bench Reveals About Codex CLI Reasoning Effort, Tool Budgets, and Strategy Transfer
Frontier Agents and Metaprogramming: What EsoLang-Bench Reveals About Codex CLI Reasoning Effort, Tool Budgets, and Strategy Transfer
Codex CLI v0.140.0 Stable Release Guide: Usage Tracking, Session Deletion, Claude Code Import, and Encrypted Credentials
Codex CLI v0.140.0 Stable Release Guide: Usage Tracking, Session Deletion, Claude Code Import, and Encrypted Credentials
Apple's Foundation Models Dynamic Profiles and the fm CLI: What WWDC 2026 Means for Codex CLI Swift Developers
Apple’s Foundation Models Dynamic Profiles and the fm CLI: What WWDC 2026 Means for Codex CLI Swift Developers