AI Agent Skills Face-Off: Claude, Codex, and Gemini CLI

product#agent📝 Blog|Analyzed: Feb 14, 2026 03:33
Published: Feb 12, 2026 22:49
1 min read
Zenn Claude

Analysis

This article provides a fascinating comparison of the 'Skills' functionality across three cutting-edge AI coding assistants: Claude Code, OpenAI Codex, and Gemini CLI. It highlights the adoption of the open standard Agent Skills, showcasing the potential for interoperability and innovation in the AI-powered development space. The detailed breakdown of features, configuration, and invocation methods offers valuable insights for developers.
Reference / Citation
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"All three tools are based on the open standard Agent Skills (agentskills.io)."
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Zenn ClaudeFeb 12, 2026 22:49
* Cited for critical analysis under Article 32.