Codex Skills Attempt to Replicate Claude Code's Plan Mode

research #agent 🏛️ Official|Analyzed: Feb 14, 2026 03:51•

Published: Jan 1, 2026 09:27

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1 min read

Analysis

This article explores the potential of using Codex CLI skills to mimic the 'plan mode' of Claude Code, which autonomously delegates tasks and iterates through research and planning phases. The research highlights an intriguing attempt to replicate sophisticated agent behavior using different tools.

Key Takeaways

•The research attempts to replicate the 'plan mode' of Claude Code using Codex CLI.
•The study focused on using skills for task delegation and iterative refinement.
•The primary finding suggests limitations in the autonomous invocation of skills within the Codex framework at the time of testing.

Reference / Citation

View Original

"The article investigates whether Codex CLI skills can autonomously call other skills, mimicking the deep functionalities of Claude Code's plan mode."

Zenn OpenAIJan 1, 2026 09:27

* Cited for critical analysis under Article 32.

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Codex Skills Attempt to Replicate Claude Code's Plan Mode