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codex
17 postsHow Cursor, Claude Code, and Codex actually load your rules
Cursor loads .mdc rules conditionally, Claude Code loads CLAUDE.md upfront, Codex merges AGENTS.md by directory depth. How each tool actually works and what rule-writing habits transfer across all three.
Rethinking Agent Autonomy: A Two-Axis Model Beyond the Single Ladder
A two-axis model — agency and orchestration — for measuring AI agent autonomy, replacing the single-axis ladder engineers have relied on.
Trigger-tree tracks which docs your AI coding agent actually reads
trigger-tree is a local, zero-token tool that reveals which docs Claude Code or Codex agents actually read — and which ones they miss.
CommitBrief — AI code reviews, right in your terminal
A provider-agnostic, local-first CLI that reviews your staged changes, a historic range, or a whole GitHub pull request. Zero telemetry, no server. Free and open source.
commitbrief.comUnderstanding the Core of Codex Security
OpenAI Codex Security uses a JavaScript loop for security analysis.
Cloudflare Enforces Engineering Standards Using AI
Cloudflare's AI code reviewer flagged 250,000 deviations, enforcing engineering standards effectively.
A plugin can pass validation and still fail after install
Plugin validators check manifest compliance but do not ensure post-install functionality.
Discoverable Evidence of AI-Assisted Software Porting
Codex significantly aided in porting software to Rust. Explore the impact of AI on software development.
33,000-token tax, a 30-hour star race, and agent failures
OpenAI's Codex gained 343 stars in 30 hours. Claude Code's 33,000-token overhead presents a key lesson for engineers.
Building in the Cloud with Codex, Safely
Explore safe cloud coding with Codex. Learn about AGENTS.md and isolated working environments.
Chinese Codex API Resellers Face New Challenges
Chinese Codex API resellers are facing challenges that disrupt user conversations after channel changes.