diff --git a/script/bootstrap b/script/bootstrap
index 4de331c6a9d..f4cb6753fe8 100755
--- a/script/bootstrap
+++ b/script/bootstrap
@@ -1,3 +1,8 @@
+#!/bin/sh
+
+# script/bootstrap: Resolve all dependencies that the application requires to
+#                   run.
+
 cd "$(dirname "$0")/.."
 
 script/bootstrap_server
diff --git a/script/cibuild b/script/cibuild
index 6c8ddd602e5..20c0719a982 100755
--- a/script/cibuild
+++ b/script/cibuild
@@ -1,3 +1,8 @@
+#!/bin/sh
+
+# script/cibuild: Setup environment for CI to run tests. This is primarily
+#                 designed to run on the continuous integration server.
+
 script/bootstrap_server
 script/test coverage
 coveralls
diff --git a/script/server b/script/server
index 218944927fe..0904bfd728e 100755
--- a/script/server
+++ b/script/server
@@ -1,3 +1,8 @@
+#!/bin/sh
+
+# script/server: Launch the application and any extra required processes
+#                locally.
+
 cd "$(dirname "$0")/.."
 
 python3 -m homeassistant -c config
diff --git a/script/test b/script/test
index 28d88201806..753ec340fd6 100755
--- a/script/test
+++ b/script/test
@@ -1,3 +1,8 @@
+#!/bin/sh
+
+# script/test: Run test suite for application. Optionallly pass in a path to an
+#              individual test file to run a single test.
+
 cd "$(dirname "$0")/.."
 
 echo "Running tests..."
diff --git a/script/update b/script/update
index e0226ee9ca2..9f8b2530a7e 100755
--- a/script/update
+++ b/script/update
@@ -1,3 +1,7 @@
+#!/bin/sh
+
+# script/update: Update application to run for its current checkout.
+
 cd "$(dirname "$0")/.."
 
 git pull