Installation

Install the packaged CLI with uv. No separate Node or npm installation is needed to use it.

Install with uv

Use a Fehm wheel supplied by the project maintainer. A public package download is not available from this website yet.

Install a supplied wheel

Install uv first, then run the following with the path to the wheel you received (replace PLATFORM with the actual filename’s platform tag):

Terminal

uv tool install /path/to/fehm-1.4.0-py3-none-PLATFORM.whl
uv tool update-shell
fehm --version

Open a new terminal if the command is not found. uv creates an isolated environment and installs Fehm’s private Node runtime dependency. The first installation requires network access for dependencies.

Upgrade or remove

Terminal

uv tool install --force /path/to/new-fehm.whl
# Refresh your chosen assistant skill afterward
fehm install --platform claude

# Remove the skill before uninstalling the CLI
fehm uninstall --platform claude
uv tool uninstall fehm

Once the registry release exists, use uv tool upgrade fehm. Stop watchers before an upgrade and retain your project’s policies and history.

Project tools are separate

Fehm’s runtime does not install your project’s dependencies. Git features need Git; test and build execution needs your project’s own toolchain.

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