Codex Knowledge Base
Hook Gotchas: Seven PreToolUse and PostToolUse Timing Mistakes That Break Deterministic Enforcement in Codex CLI
Hooks are the deterministic enforcement layer that makes agent compliance guaranteed rather than probable. But misconfiguring hook timing, scope, and exit codes silently downgrades your guardrails from ironclad to advisory....
How Coding Agents Fail Their Users: What 20,574 Real-World Sessions Reveal About Misalignment — and How Codex CLI Defends Against the Seven Failure Forms
A large-scale observational study of 20,574 coding-agent sessions identifies seven recurring misalignment forms. We map each failure pattern to Codex CLI's constraint enforcement layer — hooks, approval policies, AGENTS.md, and...
Context Budget Gotchas: Eight Ways Your Codex CLI Agent Forgets Mid-Task and How to Prevent Catastrophic Context Loss
Context is the agent's working memory. When it runs out, the agent does not stop — it forgets. The most dangerous context failures are the ones where the agent continues...
Coding with the Enemy: Why 94 Per Cent of Developers Miss Agent Sabotage — and How Codex CLI's Layered Defences Close the Gap
Coding with the Enemy: Why 94 Per Cent of Developers Miss Agent Sabotage — and How Codex CLI’s Layered Defences Close the Gap
Coding Benchmarks Are Misaligned with Agentic Software Engineering: What the Harness Component Gap Means for Codex CLI Developers
Coding Benchmarks Are Misaligned with Agentic Software Engineering: What the Harness Component Gap Means for Codex CLI Developers
CLI Coding Agent Adoption at Scale: What Microsoft's 24% PR Lift Reveals About Peer-Driven Rollout — and How to Apply It to Your Codex CLI Deployment
CLI Coding Agent Adoption at Scale: What Microsoft’s 24% PR Lift Reveals About Peer-Driven Rollout — and How to Apply It to Your Codex CLI Deployment
AGENTS.md Structure Doesn't Matter: What a 16,050-Observation Factorial Study Reveals About Instruction Adherence
AGENTS.md Structure Doesn’t Matter: What a 16,050-Observation Factorial Study Reveals About Instruction Adherence
Agentic Loop Gotchas: Six Stop-Condition and Error-Propagation Mistakes That Cause Silent Failures in Codex CLI
An agentic loop is simple in theory — call the model, execute tools, feed results back, repeat until done. In practice, mishandling stop conditions and error propagation creates agents that...
Where Do Your Tokens Go? What Empirical Research Reveals About Coding Agent Token Consumption — and How to Control It with Codex CLI
Where Do Your Tokens Go? What Empirical Research Reveals About Coding Agent Token Consumption — and How to Control It with Codex CLI
TokenPilot and the Cache Invalidation Trap: Why Aggressive Context Pruning Can Cost More — and How to Configure Codex CLI's Compaction for Prompt Cache Efficiency
TokenPilot and the Cache Invalidation Trap: Why Aggressive Context Pruning Can Cost More — and How to Configure Codex CLI’s Compaction for Prompt Cache Efficiency