Constant ZSH 

pub const ZSH: &str = r#"# majordomus — shell completion, generated by `majordomus completion init --shell zsh`.
# Carries no command, no flag and no identifier: every candidate comes from
# `majordomus completion query`, which answers from the command graph of the repository the
# shell is in. Load it once; it serves every repository.
_majordomus_query() {
  local surface="$1"
  local bin="${MAJORDOMUS_COMPLETION_BIN:-majordomus}"
  local -a lines items
  lines=("${(@f)$(command "$bin" completion query --surface "$surface" --format text --cursor "$((CURRENT-1))" -- "${words[@]}" 2>/dev/null)}")
  local line value description
  for line in "${lines[@]}"; do
    [[ -z "$line" ]] && continue
    value="${line%%	*}"
    description="${line#*	}"
    [[ "$description" == "$line" ]] && description=""
    items+=("${value}:${description}")
  done
  if (( ${#items} )); then
    _describe -t majordomus 'candidate' items
  else
    _files
  fi
}
_majordomus_complete() { _majordomus_query cli }
_majordomus_workflow_complete() { _majordomus_query workflow }
compdef _majordomus_complete majordomus
compdef _majordomus_complete majordomus-cli
compdef _majordomus_workflow_complete just
"#;

The zsh integration.

compdef is attached to the two spellings of this executable, to the shell tool, and to the workflow runner. The runner’s completion is the same function with a different surface, which is the whole of the “no second completion implementation” property: one query, one engine, one graph.