diff --git a/node-tools/internal/console/address.go b/node-tools/internal/console/address.go
index 84de6fd..8739f24 100644
--- a/node-tools/internal/console/address.go
+++ b/node-tools/internal/console/address.go
@@ -927,6 +927,21 @@ func schemaWithoutNode(raw json.RawMessage) map[string]any {
 }
 
 // answerText is a discovery verb's answer as MCP content: JSON, indented.
+// callFailed is why a call failed, as mesh_call says it: a marked tool or verb that reaches no responder names `withheld`
+// and the grants part's read (design 46 7-approval-mark §6), and a target known only from an earlier round says so.
+func (s *Surface) callFailed(t target, err error) string {
+	why := whyItFailed(t.Address, err)
+	if ok, _ := s.markedTool(t); ok && errors.Is(err, bus.ErrNoResponders) {
+		// A marked subject withheld from a machine whose tool runner does not honour the mark (§6).
+		why += "; it needs the operator's approval, so it may be withheld where the machine's tool runner does not state " +
+			"approval-mark/1: mesh-grants.grants_user_list names it under withheld"
+	}
+	if t.Stale != nil {
+		why += " (" + t.Stale.say() + ")"
+	}
+	return why
+}
+
 func answerText(v any) map[string]any {
 	var b strings.Builder
 	enc := json.NewEncoder(&b)
@@ -1137,16 +1152,7 @@ func (s *Surface) discover(ctx context.Context, name string, args map[string]any
 			got, err = callTool(s.conn, t.Key, callArgs, nil, x.Listing)
 		}
 		if err != nil {
-			why := whyItFailed(t.Address, err)
-			if ok, _ := s.markedTool(t); ok && errors.Is(err, bus.ErrNoResponders) {
-				// A marked subject withheld from a machine whose tool runner does not honour the mark (§6).
-				why += "; it needs the operator's approval, so it may be withheld where the machine's tool runner does not state " +
-					"approval-mark/1: mesh-grants.grants_user_list names it under withheld"
-			}
-			if t.Stale != nil {
-				why += " (" + t.Stale.say() + ")"
-			}
-			return failure(why)
+			return failure(s.callFailed(t, err))
 		}
 		result, unread := resolveSent(s.conn, got.Result)
 		content := []map[string]any{{"type": "text", "text": pretty(result)}}
diff --git a/node-tools/internal/console/noresponders_test.go b/node-tools/internal/console/noresponders_test.go
index 51f0c0a..1cbe5c5 100644
--- a/node-tools/internal/console/noresponders_test.go
+++ b/node-tools/internal/console/noresponders_test.go
@@ -11,7 +11,8 @@ import (
 	"github.com/novox/mesh-tools/node-tools/internal/bus"
 )
 
-// A tool's own error that mentions 503 is the tool's answer, not a routing fault (issue 1529); a real no-responders still says
+// A marked tool or verb that reaches no responder names withheld and the grants part's read (design 46 7-approval-mark §6);
+// an unmarked one, or a marked one failing otherwise, does not. A tool's own error that mentions 503 is the tool's answer, not a routing fault (issue 1529); a real no-responders still says
 // nothing serves.
 func TestARealNoRespondersStillSaysNothingServes(t *testing.T) {
 	got := whyItFailed("scanner.scan", errors.New("the scanner refused the scan job: 503 Service Unavailable"))
@@ -23,4 +24,20 @@ func TestARealNoRespondersStillSaysNothingServes(t *testing.T) {
 			t.Fatalf("%v: got %q", err, got)
 		}
 	}
+	s := &Surface{Approvals: &fakeApprovals{marked: "shell.wipe"}}
+	for _, c := range []struct {
+		target target
+		err    error
+		hinted bool
+	}{
+		{target{Address: "shell.wipe", Tool: Tool{Module: "shell", Name: "wipe"}}, bus.ErrNoResponders, true},
+		{target{Address: "node-login-shell.execute", Seat: true, Tool: Tool{Module: "node-login-shell", Name: "execute"}}, bus.ErrNoResponders, false},
+		{target{Address: "shell.tidy", Tool: Tool{Module: "shell", Name: "tidy"}}, bus.ErrNoResponders, false},
+		{target{Address: "shell.wipe", Tool: Tool{Module: "shell", Name: "wipe"}}, errors.New("its own failure"), false},
+	} {
+		got := s.callFailed(c.target, c.err)
+		if hinted := strings.Contains(got, "approval-mark/1: mesh-grants.grants_user_list names it under withheld"); hinted != c.hinted {
+			t.Errorf("%s (%v): %q", c.target.Address, c.err, got)
+		}
+	}
 }
diff --git a/node-tools/internal/console/wait_test.go b/node-tools/internal/console/wait_test.go
index 1eb7263..e66fe91 100644
--- a/node-tools/internal/console/wait_test.go
+++ b/node-tools/internal/console/wait_test.go
@@ -554,17 +554,23 @@ func TestMeshWaitIsAnnouncedAmongSeven(t *testing.T) {
 func fmtAnswer(out map[string]any) string { raw, _ := json.Marshal(out); return string(raw) }
 
 // fakeApprovals is a gate as mesh_approvals reads it.
-type fakeApprovals struct{ cancelled string }
+type fakeApprovals struct {
+	cancelled string
+	// marked is the one `<module>.<tool>` its Describe says is marked.
+	marked string
+}
 
 func (f *fakeApprovals) List() ([]approval.Listed, error) {
 	return []approval.Listed{{Ask: "a1", State: "asked"}}, nil
 }
 func (f *fakeApprovals) Read(id string) (approval.Whole, error) { return approval.Whole{}, nil }
 func (f *fakeApprovals) Applied() []approval.Marks              { return nil }
-func (f *fakeApprovals) Describe(_, _, _ string) (bool, string) { return false, "" }
-func (f *fakeApprovals) Again(string) error                     { return nil }
-func (f *fakeApprovals) Cancel(id string) error                 { f.cancelled = id; return nil }
-func (f *fakeApprovals) Fill() (uint64, int64, error)           { return 10, 64 << 20, nil }
+func (f *fakeApprovals) Describe(module, _, name string) (bool, string) {
+	return f.marked != "" && f.marked == module+"."+name, "entry " + module
+}
+func (f *fakeApprovals) Again(string) error           { return nil }
+func (f *fakeApprovals) Cancel(id string) error       { f.cancelled = id; return nil }
+func (f *fakeApprovals) Fill() (uint64, int64, error) { return 10, 64 << 20, nil }
 
 // A client that hangs up or cancels ends its wait at once: the subscription is closed and nothing is left
 // waiting for the timeout (the review of issue 745). Over the console's own HTTP, as an agent host calls it.
diff --git a/node-tools/internal/runtime/runtime_test.go b/node-tools/internal/runtime/runtime_test.go
index eb56bfa..775b920 100644
--- a/node-tools/internal/runtime/runtime_test.go
+++ b/node-tools/internal/runtime/runtime_test.go
@@ -4,10 +4,12 @@ import (
 	"encoding/json"
 	"errors"
 	"os"
+	"slices"
 	"strings"
 	"testing"
 	"time"
 
+	"github.com/novox/mesh-tools/node-tools/internal/approval"
 	"github.com/novox/mesh-tools/node-tools/internal/bus"
 	"github.com/novox/mesh-tools/node-tools/internal/launch"
 	mt "github.com/novox/mesh-tools/node-tools/internal/meshtest"
@@ -192,10 +194,49 @@ func TestEachBundleIsGivenItsOwnEnvironment(t *testing.T) {
 	}
 }
 
-// An entrypoint that is not executable is refused by name, and the others serve (ADR 0193).
+// unservingGate is an approval gate whose marks of each module name the tools given, so a bundle not registering them is
+// refused at the load (design 46 7-approval-mark §4).
+type unservingGate map[string][]string
+
+func (g unservingGate) Unserved(module, _ string, registered []string) []string {
+	var missing []string
+	for _, tool := range g[module] {
+		if !slices.Contains(registered, tool) {
+			missing = append(missing, tool)
+		}
+	}
+	return missing
+}
+func (unservingGate) Run(_ approval.Call, run func() (any, error)) (any, error) { return run() }
+
+// An entrypoint that is not executable is refused by name, and the others serve (ADR 0193). A bundle whose marks name a
+// tool it does not register is refused at the load, serving no tool of its module, and one that registers it serves
+// (design 46 7-approval-mark §4).
 func TestAnEntrypointThatIsNotExecutableIsRefused(t *testing.T) {
-	mt.NeedBundles(t)
 	mesh := mt.New(t)
+	{
+		mesh.Issue(t, mt.MembershipOf("marked", "anchor", true, nil))
+		mesh.Issue(t, mt.MembershipOf("served", "anchor", true, nil))
+		nodeTools := connect(t, "node-tools", "anchor")
+		asker := connect(t, "console", "workstation")
+		logs := &mt.Logs{}
+		stop, err := Run(nodeTools, []Served{{"marked", []string{mt.Fixture("caller-echo.py")}}, {"served", []string{mt.Fixture("caller-echo.py")}}},
+			nil, logs.Logf, WithGate(unservingGate{"marked": {"wipe"}, "served": {"who"}}))
+		if err != nil {
+			t.Fatal(err)
+		}
+		if !logs.Has("marked's bundle", "failed to load: its marks name wipe, which it does not register (design 46 7-approval-mark §4)") {
+			t.Errorf("a bundle not serving its marked tool was not refused at the load:\n%s", logs.All())
+		}
+		if _, err := call(t, asker, "served.who@anchor", map[string]any{}); err != nil {
+			t.Errorf("a bundle serving its marked tool: %v", err)
+		}
+		if _, err := asker.Ask("marked.who@anchor", map[string]any{}, ""); !errors.Is(err, bus.ErrNoResponders) {
+			t.Errorf("a refused bundle's tool answered: %v", err)
+		}
+		stop()
+	}
+	mt.NeedBundles(t)
 	mesh.Issue(t, mt.MembershipOf("alpha", "anchor", false, nil))
 	mesh.Issue(t, mt.MembershipOf("plain", "anchor", false, nil))
 	nodeTools := connect(t, "node-tools", "anchor")