diff --git a/sh/e2e/lib/clouds/digitalocean.sh b/sh/e2e/lib/clouds/digitalocean.sh
index fcd038412..444d8f756 100644
--- a/sh/e2e/lib/clouds/digitalocean.sh
+++ b/sh/e2e/lib/clouds/digitalocean.sh
@@ -73,7 +73,7 @@ _digitalocean_validate_env() {
 # ---------------------------------------------------------------------------
 _digitalocean_headless_env() {
   local app="$1"
-  # local agent="$2"  # unused but part of the interface
+  # $2 = agent (unused but part of the interface)
 
   printf 'export DO_DROPLET_NAME="%s"\n' "${app}"
   printf 'export DO_DROPLET_SIZE="%s"\n' "${DO_DROPLET_SIZE:-${_DO_DEFAULT_SIZE}}"
diff --git a/sh/e2e/lib/clouds/gcp.sh b/sh/e2e/lib/clouds/gcp.sh
index 2c2d66be0..69dfb658c 100644
--- a/sh/e2e/lib/clouds/gcp.sh
+++ b/sh/e2e/lib/clouds/gcp.sh
@@ -92,7 +92,7 @@ process.stdout.write(d.GCP_ZONE || '');
 # ---------------------------------------------------------------------------
 _gcp_headless_env() {
   local app="$1"
-  # local agent="$2"  # unused but part of the interface
+  # $2 = agent (unused but part of the interface)
 
   printf 'export GCP_INSTANCE_NAME="%s"\n' "${app}"
   printf 'export GCP_PROJECT="%s"\n' "${GCP_PROJECT:-}"
diff --git a/sh/e2e/lib/clouds/sprite.sh b/sh/e2e/lib/clouds/sprite.sh
index 45b1cba88..64b47f07c 100644
--- a/sh/e2e/lib/clouds/sprite.sh
+++ b/sh/e2e/lib/clouds/sprite.sh
@@ -129,7 +129,7 @@ _sprite_validate_env() {
 # ---------------------------------------------------------------------------
 _sprite_headless_env() {
   local app="$1"
-  # local agent="$2"  # unused but part of the interface
+  # $2 = agent (unused but part of the interface)
 
   printf 'export SPRITE_NAME="%s"\n' "${app}"
   if [ -n "${_SPRITE_ORG}" ]; then