Codex safeguards against accidental destructive actions

Melvin Vivas · X post · 2026-08-19 · Open on X

Topics: AI Safety, Security & Guardrails, AI Dev Tools & Productivity, AI Agents, Tool Use & MCP · Level: intermediate

Summary

The creator shares an update from Tibo at OpenAI about changes that lower the risk of Codex doing destructive things, like accidental deletions, while it works. He calls it a must-read for Codex users.

Key points

• OpenAI looked into reports of Codex performing potentially destructive actions.
• Over a few weeks they rolled out preventive fixes that reduce accidental deletions.
• Agent safety in coding tools is an active area to keep up with if you rely on autonomous agents.

Resources mentioned

• Tibo (@thsottiaux) · person · x.com · free
  X account of the OpenAI Codex team member who posts Codex updates and usage-limit announcements.
  Also in: Codex Tip: Ask Codex to Organize Your Recent Chats (Melvin Vivas on X · notes), An X research bot built with Hermes (Melvin Vivas on X · notes), Why Codex Usage Drains Faster: Prompt Cache Hit Rate (Melvin Vivas on X · notes), Run OpenAI Codex with Open-Source and Local Models (OSS Mode) (Melvin Vivas on X · notes) and 1 more
• OpenAI Codex · tool · openai.com · paid
  OpenAI's coding agent. In the diagram it writes code, fixes review findings and drives the build loop. The creator also used it to make this video.
  Also in: An agent bot that installs and drives Codex on its own (Melvin Vivas on X · notes), Asking a Coder bot to install Codex (Melvin Vivas on X · notes), Sign in with ChatGPT: Setting Usage Limits for Each App (Melvin Vivas on X · notes), Codex Cloud Environments Must Be Saved & Published Before Use (Melvin Vivas on X · notes) and 240 more

Try this

• Read Tibo's recap on X of the Codex destructive-action safeguards.