diff --git a/completion/tmuxifier.tcsh b/completion/tmuxifier.tcsh
new file mode 100644
index 0000000..b481282
--- /dev/null
+++ b/completion/tmuxifier.tcsh
@@ -0,0 +1,2 @@
+complete tmuxifier 'p@1@`$HOME/.tmuxifier/bin/tmuxifier commands`@' \
+                   'p@2@`$HOME/.tmuxifier/bin/tmuxifier completions $:-1`@'
diff --git a/init.tcsh b/init.tcsh
new file mode 100644
index 0000000..366db55
--- /dev/null
+++ b/init.tcsh
@@ -0,0 +1,13 @@
+# Set tmuxifier root path.
+if ( ! $?TMUXIFIER ) then
+  setenv TMUXIFIER "${HOME}/.tmuxifier"
+endif
+
+# Add `bin` directroy to `$PATH`.
+set path = ( $TMUXIFIER/bin $path )
+
+# If `tmuxifier` is available, and `$TMUXIFIER_NO_COMPLETE` is not set, then
+# load tmuxifier shell completion.
+if ( ! $?TMUXIFIER_NO_COMPLETE ) then
+    which tmuxifier > /dev/null && source "$TMUXIFIER/completion/tmuxifier.tcsh"
+endif