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How to install and use agent skills in Claude Code, Cursor and Codex (with a free plugin marketplace)

Agent skills are one of the most useful features of coding agents, and one of the least explained. This guide covers what a skill is, the three ways to install one, how the Claude Code plugin marketplace works, and what makes a skill actually get used. For the examples I'll use a repo I maintain: n…

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  1. 2026-10-31 23:27 · DEV Community — AI
    How to install and use agent skills in Claude Code, Cursor and Codex (with a free plugin marketplace)

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