One reader of the catalogue's placement and the toolchain gate over it, in place of the three copies over the controller's assignments (issue 774, ADR 0549 §3, issue 1940); the assigner may read the lease (ADR 0549 §5)

go/buscompose/buscompose_test.go

@@ -3,11 +3,6 @@ package buscompose
 import (
 	"encoding/json"
 	"errors"
-	"time"
-
-	"git.novox.be/novox/mesh-sdk/go/announce"
-	"git.novox.be/novox/mesh-sdk/go/delivery"
-	"github.com/nats-io/nats.go/jetstream"
 	"os"
 	"path/filepath"
 	"reflect"
@@ -15,8 +10,11 @@ import (
 	"slices"
 	"strings"
 	"testing"
+	"time"
 
+	"git.novox.be/novox/mesh-sdk/go/announce"
 	"git.novox.be/novox/mesh-sdk/go/delivery"
+	"github.com/nats-io/nats.go/jetstream"
 )
 
 // Defends issue 1377 and novox/hq ADR 0547 §5: this is the controller's bus composer copied, and it composes byte for
@@ -439,7 +437,7 @@ func TestTheCopiedComposerComposesAsTheControllers(t *testing.T) {
 			}
 		}
 		announced := map[string]announce.States{ControllerSeat: ControllerAnnouncement("novox")}
-		for reader, want := range map[string]bool{VaultSeat: true, GrantsModule: true, AssignerModule: true, "mesh-delivery-view": false} {
+		for reader, want := range map[string]bool{VaultSeat: true, GrantsModule: true, "mesh-delivery-assigner": true, "mesh-delivery-view": false} {
 			granted, _ := ReadsAnnouncedBy(reader, []string{ControllerLease}, announced)
 			if (len(granted) == 1) != want {
 				t.Errorf("%s reads the lease: %v, want %v", reader, granted, want)

go/buscompose/userlist_switch.go

@@ -79,13 +79,10 @@ const VaultBusAccounts = "mesh-vault.bus-accounts"
 
 // NamedReaders are the states only the modules named may read, by `<owner>.<name>`: the grants part's wanted accounts
 // are read by the vault alone (novox/hq ADR 0561 §2).
-// The controller's lease is read by the two parts that turn on at its write (ADR 0561 §3, §6) and by the assigner, which
-// reads the grants from the grants part from then on (ADR 0547 §4, §5; delivery.GrantSource).
+// The controller's lease is read by the parts that turn on at its write (ADR 0561 §3, §6), and by the assigner, which
+// reads the catalogue's placement alone from then (ADR 0549 §5, issue 774).
 var NamedReaders = map[string][]string{VaultBusAccounts: {GrantsModule}, GrantsAccounts: {VaultSeat},
-	ControllerLease: {VaultSeat, GrantsModule, AssignerModule}}
-
-// AssignerModule is the assigner, which reads the lease to choose the source of the grants.
-const AssignerModule = "mesh-delivery-assigner"
+	ControllerLease: {VaultSeat, GrantsModule, delivery.AssignerModule}}
 
 // ReaderMay says whether module may read the state read (`<owner>.<name>`) by the named readers: always, for a state
 // that names none.