Agent Skills

    If you use Codex or another coding agent that supports the Vercel skills CLI, you can install the react-native-harness skill so the agent can author Harness tests more effectively.

    The installed skill is a thin router. The detailed guidance lives in the react-native-harness CLI itself, so it stays aligned with the version already installed in the project.

    The skill complements the react-native-harness package, it does not replace it. Your project still needs react-native-harness installed because the agent is ultimately writing and running real Harness tests in your app.

    Once installed, the agent should start with:

    harness skill get core

    To see the other bundled guides:

    harness skill list

    Install with the Vercel skills CLI

    Install the skill from this repository using the repo URL and the skill name:

    npm
    yarn
    pnpm
    bun
    npx skills add https://github.com/callstackincubator/react-native-harness --skill react-native-harness

    By default, the skills CLI installs project-local skills for the agents it supports in your project.

    To install it globally for all projects instead, use:

    npm
    yarn
    pnpm
    bun
    npx skills add https://github.com/callstackincubator/react-native-harness --skill react-native-harness --global

    After installation, ask your agent to use react-native-harness whenever it needs to write or debug Harness tests.

    Next Steps

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