diff --git a/dag/gunbc/machine_intake/megarac_media_attach.dag b/dag/gunbc/machine_intake/megarac_media_attach.dag
index 710559ebebe..ef8056bbe83 100644
--- a/dag/gunbc/machine_intake/megarac_media_attach.dag
+++ b/dag/gunbc/machine_intake/megarac_media_attach.dag
@@ -178,6 +178,13 @@ fn start_media_body(image_name: NonEmptyStr, image_index: String) -> NonEmptyStr
 // no credential at all because the cookie is the bearer. The ipmi operations beside this take a
 // password FILE for the same threat and can, because -f exists there. Naming the asymmetry is the
 // point; hiding it behind a wrapper would make one call's exposure look like none.
+// AN OPENED SESSION WHOSE TOKEN CANNOT BE READ IS STILL AN ALLOCATED SESSION. An earlier
+// revision returned SessionReleaseNotAttempted here, which is the leak that saturated this
+// controller: OpenSession succeeded, the cookie was written, and CloseSession never ran because
+// the renderer treated the arm as "never opened". The DELETE still needs an X-CSRFTOKEN header
+// by the upstream contract; the cookie is the bearer, so the header is supplied as a sentinel
+// rather than inventing a second CloseSession shape. A refused or uncertain close remains
+// SessionReleaseRefused, never NotAttempted.
 func megarac_attach_remote_image(
   bmc_host: NonEmptyStr,
   username: NonEmptyStr,
@@ -209,13 +216,6 @@ func megarac_attach_remote_image(
     Present { value: doc } => json_string_member(doc: doc, key: "CSRFToken")
   }
 
-  // AN OPENED SESSION WHOSE TOKEN CANNOT BE READ IS STILL AN ALLOCATED SESSION. An earlier
-  // revision returned SessionReleaseNotAttempted here, which is the leak that saturated this
-  // controller: OpenSession succeeded, the cookie was written, and CloseSession never ran because
-  // the renderer treated the arm as "never opened". The DELETE still needs an X-CSRFTOKEN header
-  // by the upstream contract; the cookie is the bearer, so the header is supplied as a sentinel
-  // rather than inventing a second CloseSession shape. A refused or uncertain close remains
-  // SessionReleaseRefused, never NotAttempted.
   return match csrf {
     Absent =>
       megarac_release_unreadable_session(
@@ -284,6 +284,10 @@ func megarac_attach_then_release(
 // CONFIGURATIONS IS CONSULTED BEFORE ANYTHING IS WRITTEN, so the converged case performs no write
 // at all. This is not an optimisation: start-media against an already-presented image is a write
 // whose effect on a booted host is unmodelled, and the point of reading first is to not make it.
+// MALFORMED PRESENTED STATE IS UNKNOWN, NOT "NOT ATTACHED". An earlier revision collapsed a
+// JSON parse failure or a non-array document to false, then walked the available-images list
+// and could StartMedia over a controller whose current attachment was unreadable. That is the
+// absorbing-fallback DESIGN §5 forbids: ignorance rendered as the empty case.
 func megarac_attach_with_token(
   bmc_host: NonEmptyStr,
   cookie_jar: NonEmptyStr,
@@ -300,10 +304,6 @@ func megarac_attach_with_token(
   if presented.success == false {
     return MegaRacConfigurationsUnreadable { detail: presented.body }
   }
-  // MALFORMED PRESENTED STATE IS UNKNOWN, NOT "NOT ATTACHED". An earlier revision collapsed a
-  // JSON parse failure or a non-array document to false, then walked the available-images list
-  // and could StartMedia over a controller whose current attachment was unreadable. That is the
-  // absorbing-fallback DESIGN §5 forbids: ignorance rendered as the empty case.
   match presented_media_standing(body: presented.body, image_name: image_name) {
     PresentedMediaUnreadable { detail: d } =>
       return MegaRacConfigurationsUnreadable { detail: d }
@@ -413,6 +413,12 @@ fn presented_media_standing(body: String, image_name: NonEmptyStr) -> PresentedM
 // asynchronous. Reporting MegaRacStartRefused on a status code would refuse an attach that is
 // merely still mounting. The bounded read-back decides; the status code only distinguishes which
 // unconfirmed state is reported.
+// THE READ-BACK DECIDES, INCLUDING WHEN START REPORTED FAILURE. This firmware answers HTTP 500
+// on writes that take effect; mapping start.success == false to MegaRacStartRefused refused an
+// attach that was merely still mounting, and contradicted the comment this function already
+// carried. A missing confirmation after any start response is pending (Unconfirmed). StartRefused
+// is reserved for a start that failed AND whose configurations document is itself unreadable
+// as JSON — that is, when we cannot even ask the read-back.
 func megarac_start_and_confirm(
   bmc_host: NonEmptyStr,
   cookie_jar: NonEmptyStr,
@@ -438,12 +444,6 @@ func megarac_start_and_confirm(
     return MegaRacAttachUnconfirmed { image_name: image_name, configurations: configurations.body }
   }
 
-  // THE READ-BACK DECIDES, INCLUDING WHEN START REPORTED FAILURE. This firmware answers HTTP 500
-  // on writes that take effect; mapping start.success == false to MegaRacStartRefused refused an
-  // attach that was merely still mounting, and contradicted the comment this function already
-  // carried. A missing confirmation after any start response is pending (Unconfirmed). StartRefused
-  // is reserved for a start that failed AND whose configurations document is itself unreadable
-  // as JSON — that is, when we cannot even ask the read-back.
   return match presented_media_standing(body: configurations.body, image_name: image_name) {
     PresentedMediaAttached =>
       MegaRacAttached { image_name: image_name, image_index: image_index }