diff --git a/imag-ref/src/main.rs b/imag-ref/src/main.rs
index b4e11dcd..fd546fb3 100644
--- a/imag-ref/src/main.rs
+++ b/imag-ref/src/main.rs
@@ -9,6 +9,9 @@ extern crate libimagref;
 extern crate libimagerror;
 extern crate libimagentrylist;
 
+mod ui;
+use ui::build_ui;
+
 fn main() {
     println!("Hello, world!");
 }
diff --git a/imag-ref/src/ui.rs b/imag-ref/src/ui.rs
new file mode 100644
index 00000000..e884c90f
--- /dev/null
+++ b/imag-ref/src/ui.rs
@@ -0,0 +1,71 @@
+use clap::{Arg, App, SubCommand};
+
+pub fn build_ui<'a>(app: App<'a, 'a>) -> App<'a, 'a> {
+    app
+        .subcommand(SubCommand::with_name("add")
+                    .about("Add a reference to a file outside of the store")
+                    .version("0.1")
+                    .arg(Arg::with_name("path")
+                         .long("path")
+                         .short("p")
+                         .takes_value(true)
+                         .required(true)
+                         .help("The path of the file")
+                         .value_name("PATH"))
+                    .arg(Arg::with_name("track-content")
+                         .long("content-hash")
+                         .short("C")
+                         .takes_value(false)
+                         .required(false)
+                         .help("Hash the content for the reference"))
+                    .arg(Arg::with_name("track-permissions")
+                         .long("permission-tracking")
+                         .short("P")
+                         .takes_value(false)
+                         .required(false)
+                         .help("Rememeber the permissions of the referenced file"))
+                    )
+
+        .subcommand(SubCommand::with_name("remove")
+                .about("Remove a reference")
+                .version("0.1")
+                .arg(Arg::with_name("hash")
+                     .long("hash")
+                     .short("h")
+                     .takes_value(true)
+                     .required(true)
+                     .help("Remove the reference with this hash")
+                     .value_name("HASH"))
+
+                .arg(Arg::with_name("yes")
+                     .long("yes")
+                     .short("y")
+                     .help("Don't ask whether this really should be done"))
+                )
+
+        .subcommand(SubCommand::with_name("list")
+                    .about("List references in the store")
+                    .version("0.1")
+
+                    .arg(Arg::with_name("check-dead")
+                         .long("check-dead")
+                         .short("d")
+                         .help("Check each reference whether it is dead"))
+
+                    .arg(Arg::with_name("check-changed")
+                         .long("check-changed")
+                         .short("c")
+                         .help("Check whether a reference had changed (content or permissions)"))
+
+                    .arg(Arg::with_name("check-changed-content")
+                         .long("check-changed-content")
+                         .short("C")
+                         .help("Check whether the content of the referenced file changed"))
+
+                    .arg(Arg::with_name("check-changed-permissions")
+                         .long("check-changed-perms")
+                         .short("P")
+                         .help("Check whether the permissions of the referenced file changed"))
+
+                    )
+}