anchor.diff:             :copy-file
              :lisp-version-string
              ;;
  -	   :os-hostname
  -	   :os-cd
  -	   :os-chdir
  -	   :os-dirname
  -	   :os-stat
  -	   :os-stat-atime
  -	   :os-stat-ctime
  -	   :os-stat-dev
  -	   :os-stat-gid
  -	   :os-stat-ino
  -	   :os-stat-mode
  -	   :os-stat-mtime
  -	   :os-stat-nlink
  -	   :os-stat-rdev
  -	   :os-stat-size
  -	   :os-stat-uid
  -	   :os-find
  -	   :os-cat
  -	   :os-pwd
  -	   :os-getcwd
  -	   :os-mkdir
  -	   :os-mv
  -	   :os-cp
  -	   :os-rm
  -	   :os-touch
  -	   :os-ln
  -	   :os-ls
  -	   :os-ls-s
  -	   :os-getenv
  -	   :os-setenv
  -	   :os-getenvp
  -	   :os-architecture
  -	   :os-realpath
  -	   :os-env
  -	   :os-exec
  -	   :os-kill
  +           :os-hostname
  +           :os-cd
  +           :os-chdir
  +           :os-dirname
  +           :os-stat
  +           :os-stat-atime
  +           :os-stat-ctime
  +           :os-stat-dev
  +           :os-stat-gid
  +           :os-stat-ino
  +           :os-stat-mode
  +           :os-stat-mtime
  +           :os-stat-nlink
  +           :os-stat-rdev
  +           :os-stat-size
  +           :os-stat-uid
  +           :os-find
  +           :os-cat
  +           :os-pwd
  +           :os-getcwd
  +           :os-mkdir
  +           :os-mv
  +           :os-cp
  +           :os-rm
  +           :os-touch
  +           :os-ln
  +           :os-ls
  +           :os-ls-s
  +           :os-getenv
  +           :os-setenv
  +           :os-getenvp
  +           :os-architecture
  +           :os-realpath
  +           :os-env
  +           :os-exec
  +           :os-kill
              ;;
              :mypid
              :myuid
  
positive.code:            ;;
             :with-project-to-be-run
             :share-plugin
  	   ;;
  	   :+jabs-version+
  	   :*jabs-universal-delimiter*
  	   :define-plugin-type
  	   :filter-project-plugins-by-type
  	   :plugins-api-call-to-true
       :plugins-api-call-all
             ))
  
negative.code:            :*jabs-local-config-directory*
             :*jabs-local-lib-directory*
             :*jabs-local-src-directory*
             :+jabs-run-directory+
             ;;
             :tosymbol
             :add-hook
  