Module path_check 

Non-invasive PATH reachability check for the zenith binary.

The skill installed by zenith plugin install instructs AI agents to call zenith by name. If the binary is not resolvable on the user’s PATH, the agent hits command not found with no guidance. These helpers detect that situation so the command can print a warning — they never modify PATH or any shell file.

Functions

resolve_on_path

Resolve bin on a PATH-style value, returning the first matching file.

zenith_on_path

Resolve the zenith binary on the current process’s PATH.