diff --git a/modules/nats/cmd/nats-tools/manifest_test.go b/modules/nats/cmd/nats-tools/manifest_test.go
index 08067236d..8a3245d21 100644
--- a/modules/nats/cmd/nats-tools/manifest_test.go
+++ b/modules/nats/cmd/nats-tools/manifest_test.go
@@ -3,6 +3,7 @@ package main
 import (
 	"encoding/json"
 	"fmt"
+	"git.novox.be/novox/mesh-sdk/go/catalogue"
 	"os"
 	"slices"
 	"strings"
@@ -220,6 +221,14 @@ func TestTheBussManifestMountsItsProgramsIntoTheUpstreamImage(t *testing.T) {
 		health["kind"] != "tool" || health["tool"] != "nats_keeper_health" {
 		t.Errorf("the keeper is %v: a process of the tools bundle, run as keep, keeping asked and requests, judged by nats_keeper_health", keeper)
 	}
+	// Its bus declares keeps, the one key more ADR 0626 §1 allows it, read through the SDK as the grant composition reads it.
+	var whole catalogue.Manifest
+	if err := json.Unmarshal(raw, &whole); err != nil {
+		t.Fatal(err)
+	}
+	if b := whole.ProcessBuses()["keeper"]; !b.Keeps {
+		t.Errorf("the keeper's bus declares no keeps, so it would be composed no bus state to keep (ADR 0626 §1): %+v", b)
+	}
 	if h, _ := server["health"].(map[string]any); h["kind"] != "tcp" || h["endpoint"] != "bus" {
 		t.Errorf("the server's health is %v: tcp on bus, the check the keeper's tool check stands beside", server["health"])
 	}
diff --git a/modules/nats/module.json b/modules/nats/module.json
index b704efbe9..5cc9edeab 100644
--- a/modules/nats/module.json
+++ b/modules/nats/module.json
@@ -247,6 +247,7 @@
           "requests"
         ],
         "asks": true,
+        "keeps": true,
         "invokes": [
           "mesh-delivery-indexer.indexer_bus_state",
           "seat:mesh-hand-acts.hand-act"