diff --git a/controller.go b/controller.go
index a31f340d5..0330ff375 100644
--- a/controller.go
+++ b/controller.go
@@ -45,7 +45,12 @@ func (*noopController) UpdateRoutingInfo(context.Context, *protos.UpdateRoutingI
 	return nil, fmt.Errorf("controller.UpdateRoutingInfo not implemented")
 }
 
-// GetProfile implements controller interface.
+// GetHealth implements controller nterface.
+func (*noopController) GetHealth(context.Context, *protos.GetHealthRequest) (*protos.GetHealthReply, error) {
+	return nil, fmt.Errorf("controller.GetHealth not implemented")
+}
+
+// GetProfile implements controller nterface.
 func (*noopController) GetProfile(context.Context, *protos.GetProfileRequest) (*protos.GetProfileReply, error) {
 	return nil, fmt.Errorf("controller.GetProfile not implemented")
 }
diff --git a/internal/control/controller.go b/internal/control/controller.go
index 1cb65b16d..3e14f1efe 100644
--- a/internal/control/controller.go
+++ b/internal/control/controller.go
@@ -33,6 +33,9 @@ type Controller interface {
 	// UpdateRoutingInfo updates the weavelet with a component's most recent routing info.
 	UpdateRoutingInfo(context.Context, *protos.UpdateRoutingInfoRequest) (*protos.UpdateRoutingInfoReply, error)
 
+	// GetHealth fetches weavelet health information.
+	GetHealth(context.Context, *protos.GetHealthRequest) (*protos.GetHealthReply, error)
+
 	// GetProfile gets a profile from the weavelet.
 	GetProfile(context.Context, *protos.GetProfileRequest) (*protos.GetProfileReply, error)
 }
diff --git a/internal/envelope/conn/envelope_conn.go b/internal/envelope/conn/envelope_conn.go
index 67be8fe49..248f13a37 100644
--- a/internal/envelope/conn/envelope_conn.go
+++ b/internal/envelope/conn/envelope_conn.go
@@ -114,8 +114,8 @@ func NewEnvelopeConn(ctx context.Context, r io.ReadCloser, w io.WriteCloser, inf
 	//     }
 	//
 	// If an EnvelopeHandler, invoked by handleMessage, calls an RPC on the
-	// weavelet (e.g., GetHealth), then it will block forever, as the RPC
-	// response will never be read by conn.recv.
+	// weavelet, then it will block forever, as the RPC response will never
+	// be read by conn.recv.
 	e.running.Go(func() error {
 		for {
 			msg := &protos.WeaveletMsg{}
@@ -265,19 +265,6 @@ func (e *EnvelopeConn) GetMetricsRPC() ([]*metrics.MetricSnapshot, error) {
 	return e.metrics.Import(reply.GetMetricsReply.Update)
 }
 
-// GetHealthRPC gets a weavelet's health.
-func (e *EnvelopeConn) GetHealthRPC() (protos.HealthStatus, error) {
-	req := &protos.EnvelopeMsg{GetHealthRequest: &protos.GetHealthRequest{}}
-	reply, err := e.rpc(req)
-	if err != nil {
-		return protos.HealthStatus_UNHEALTHY, err
-	}
-	if reply.GetHealthReply == nil {
-		return protos.HealthStatus_UNHEALTHY, fmt.Errorf("nil HealthStatusReply received from weavelet")
-	}
-	return reply.GetHealthReply.Status, nil
-}
-
 // GetLoadRPC gets a load report from the weavelet.
 func (e *EnvelopeConn) GetLoadRPC() (*protos.LoadReport, error) {
 	req := &protos.EnvelopeMsg{GetLoadRequest: &protos.GetLoadRequest{}}
diff --git a/internal/envelope/conn/weavelet_conn.go b/internal/envelope/conn/weavelet_conn.go
index 9a9787622..9fc3a3a29 100644
--- a/internal/envelope/conn/weavelet_conn.go
+++ b/internal/envelope/conn/weavelet_conn.go
@@ -160,11 +160,6 @@ func (w *WeaveletConn) handleMessage(handler WeaveletHandler, msg *protos.Envelo
 			Id:              -msg.Id,
 			GetMetricsReply: &protos.GetMetricsReply{Update: update},
 		})
-	case msg.GetHealthRequest != nil:
-		return w.conn.send(&protos.WeaveletMsg{
-			Id:             -msg.Id,
-			GetHealthReply: &protos.GetHealthReply{Status: protos.HealthStatus_HEALTHY},
-		})
 	case msg.GetLoadRequest != nil:
 		reply, err := handler.GetLoad(msg.GetLoadRequest)
 		return w.conn.send(&protos.WeaveletMsg{
diff --git a/internal/weaver/remoteweavelet.go b/internal/weaver/remoteweavelet.go
index 3a7f539d2..8c2d3af8b 100644
--- a/internal/weaver/remoteweavelet.go
+++ b/internal/weaver/remoteweavelet.go
@@ -571,6 +571,11 @@ func (w *RemoteWeavelet) UpdateRoutingInfo(ctx context.Context, req *protos.Upda
 	return &protos.UpdateRoutingInfoReply{}, nil
 }
 
+// GetHealth implements controller.GetHealth.
+func (w *RemoteWeavelet) GetHealth(ctx context.Context, req *protos.GetHealthRequest) (*protos.GetHealthReply, error) {
+	return &protos.GetHealthReply{Status: protos.HealthStatus_HEALTHY}, nil
+}
+
 // GetProfile implements controller.GetProfile.
 func (w *RemoteWeavelet) GetProfile(ctx context.Context, req *protos.GetProfileRequest) (*protos.GetProfileReply, error) {
 	data, err := getProfile(ctx, req)
diff --git a/runtime/envelope/envelope.go b/runtime/envelope/envelope.go
index 9055747b4..050fcc74b 100644
--- a/runtime/envelope/envelope.go
+++ b/runtime/envelope/envelope.go
@@ -311,11 +311,11 @@ func (e *Envelope) WeaveletInfo() *protos.WeaveletInfo {
 
 // GetHealth returns the health status of the weavelet.
 func (e *Envelope) GetHealth() protos.HealthStatus {
-	status, err := e.conn.GetHealthRPC()
+	reply, err := e.controller.GetHealth(context.TODO(), &protos.GetHealthRequest{})
 	if err != nil {
-		return protos.HealthStatus_UNHEALTHY
+		return protos.HealthStatus_UNKNOWN
 	}
-	return status
+	return reply.Status
 }
 
 // GetProfile gets a profile from the weavelet.
diff --git a/runtime/envelope/envelope_test.go b/runtime/envelope/envelope_test.go
index 38f605339..7211148fb 100644
--- a/runtime/envelope/envelope_test.go
+++ b/runtime/envelope/envelope_test.go
@@ -432,9 +432,8 @@ func TestRPCBeforeServe(t *testing.T) {
 	if err != nil {
 		t.Fatal(err)
 	}
-	health := e.GetHealth()
-	if health != protos.HealthStatus_HEALTHY {
-		t.Fatalf("expected healthy, got %v", health)
+	if _, err := e.GetMetrics(); err != nil {
+		t.Fatalf("expected metrics, got %v", err)
 	}
 	h := &handlerForTest{logSaver: testSaver(t)}
 
diff --git a/runtime/protos/runtime.pb.go b/runtime/protos/runtime.pb.go
index 8d4e0648c..13fd575e5 100644
--- a/runtime/protos/runtime.pb.go
+++ b/runtime/protos/runtime.pb.go
@@ -378,7 +378,6 @@ type EnvelopeMsg struct {
 	// Handshake.
 	EnvelopeInfo *EnvelopeInfo `protobuf:"bytes,2,opt,name=envelope_info,json=envelopeInfo,proto3" json:"envelope_info,omitempty"`
 	// Envelope initiated RPC requests.
-	GetHealthRequest  *GetHealthRequest  `protobuf:"bytes,3,opt,name=get_health_request,json=getHealthRequest,proto3" json:"get_health_request,omitempty"`
 	GetMetricsRequest *GetMetricsRequest `protobuf:"bytes,4,opt,name=get_metrics_request,json=getMetricsRequest,proto3" json:"get_metrics_request,omitempty"`
 	GetLoadRequest    *GetLoadRequest    `protobuf:"bytes,5,opt,name=get_load_request,json=getLoadRequest,proto3" json:"get_load_request,omitempty"`
 	// Weavelet initiated RPC replies.
@@ -437,13 +436,6 @@ func (x *EnvelopeMsg) GetEnvelopeInfo() *EnvelopeInfo {
 	return nil
 }
 
-func (x *EnvelopeMsg) GetGetHealthRequest() *GetHealthRequest {
-	if x != nil {
-		return x.GetHealthRequest
-	}
-	return nil
-}
-
 func (x *EnvelopeMsg) GetGetMetricsRequest() *GetMetricsRequest {
 	if x != nil {
 		return x.GetMetricsRequest
@@ -523,7 +515,6 @@ type WeaveletMsg struct {
 	TraceSpans *TraceSpans `protobuf:"bytes,4,opt,name=trace_spans,json=traceSpans,proto3" json:"trace_spans,omitempty"`
 	// Envelope initiated RPC replies.
 	Error           string           `protobuf:"bytes,5,opt,name=error,proto3" json:"error,omitempty"` // non-nil on error
-	GetHealthReply  *GetHealthReply  `protobuf:"bytes,6,opt,name=get_health_reply,json=getHealthReply,proto3" json:"get_health_reply,omitempty"`
 	GetMetricsReply *GetMetricsReply `protobuf:"bytes,7,opt,name=get_metrics_reply,json=getMetricsReply,proto3" json:"get_metrics_reply,omitempty"`
 	GetLoadReply    *GetLoadReply    `protobuf:"bytes,8,opt,name=get_load_reply,json=getLoadReply,proto3" json:"get_load_reply,omitempty"`
 	// Weavelet initiated RPC requests.
@@ -602,13 +593,6 @@ func (x *WeaveletMsg) GetError() string {
 	return ""
 }
 
-func (x *WeaveletMsg) GetGetHealthReply() *GetHealthReply {
-	if x != nil {
-		return x.GetHealthReply
-	}
-	return nil
-}
-
 func (x *WeaveletMsg) GetGetMetricsReply() *GetMetricsReply {
 	if x != nil {
 		return x.GetMetricsReply
@@ -4038,130 +4022,122 @@ var File_runtime_protos_runtime_proto protoreflect.FileDescriptor
 var file_runtime_protos_runtime_proto_rawDesc = []byte{
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@@ -4635,70 +4611,68 @@ var file_runtime_protos_runtime_proto_goTypes = []interface{}{
 }
 var file_runtime_protos_runtime_proto_depIdxs = []int32{
 	8,  // 0: runtime.EnvelopeMsg.envelope_info:type_name -> runtime.EnvelopeInfo
-	11, // 1: runtime.EnvelopeMsg.get_health_request:type_name -> runtime.GetHealthRequest
-	13, // 2: runtime.EnvelopeMsg.get_metrics_request:type_name -> runtime.GetMetricsRequest
-	19, // 3: runtime.EnvelopeMsg.get_load_request:type_name -> runtime.GetLoadRequest
-	31, // 4: runtime.EnvelopeMsg.activate_component_reply:type_name -> runtime.ActivateComponentReply
-	33, // 5: runtime.EnvelopeMsg.get_listener_address_reply:type_name -> runtime.GetListenerAddressReply
-	35, // 6: runtime.EnvelopeMsg.export_listener_reply:type_name -> runtime.ExportListenerReply
-	37, // 7: runtime.EnvelopeMsg.get_self_certificate_reply:type_name -> runtime.GetSelfCertificateReply
-	39, // 8: runtime.EnvelopeMsg.verify_client_certificate_reply:type_name -> runtime.VerifyClientCertificateReply
-	41, // 9: runtime.EnvelopeMsg.verify_server_certificate_reply:type_name -> runtime.VerifyServerCertificateReply
-	9,  // 10: runtime.WeaveletMsg.weavelet_info:type_name -> runtime.WeaveletInfo
-	42, // 11: runtime.WeaveletMsg.log_entry:type_name -> runtime.LogEntry
-	44, // 12: runtime.WeaveletMsg.trace_spans:type_name -> runtime.TraceSpans
-	12, // 13: runtime.WeaveletMsg.get_health_reply:type_name -> runtime.GetHealthReply
-	14, // 14: runtime.WeaveletMsg.get_metrics_reply:type_name -> runtime.GetMetricsReply
-	20, // 15: runtime.WeaveletMsg.get_load_reply:type_name -> runtime.GetLoadReply
-	30, // 16: runtime.WeaveletMsg.activate_component_request:type_name -> runtime.ActivateComponentRequest
-	32, // 17: runtime.WeaveletMsg.get_listener_address_request:type_name -> runtime.GetListenerAddressRequest
-	34, // 18: runtime.WeaveletMsg.export_listener_request:type_name -> runtime.ExportListenerRequest
-	36, // 19: runtime.WeaveletMsg.get_self_certificate_request:type_name -> runtime.GetSelfCertificateRequest
-	38, // 20: runtime.WeaveletMsg.verify_client_certificate_request:type_name -> runtime.VerifyClientCertificateRequest
-	40, // 21: runtime.WeaveletMsg.verify_server_certificate_request:type_name -> runtime.VerifyServerCertificateRequest
-	46, // 22: runtime.EnvelopeInfo.sections:type_name -> runtime.EnvelopeInfo.SectionsEntry
-	47, // 23: runtime.EnvelopeInfo.redirects:type_name -> runtime.EnvelopeInfo.Redirect
-	10, // 24: runtime.WeaveletInfo.version:type_name -> runtime.SemVer
-	0,  // 25: runtime.GetHealthReply.status:type_name -> runtime.HealthStatus
-	15, // 26: runtime.GetMetricsReply.update:type_name -> runtime.MetricUpdate
-	16, // 27: runtime.MetricUpdate.defs:type_name -> runtime.MetricDef
-	17, // 28: runtime.MetricUpdate.values:type_name -> runtime.MetricValue
-	1,  // 29: runtime.MetricDef.typ:type_name -> runtime.MetricType
-	48, // 30: runtime.MetricDef.labels:type_name -> runtime.MetricDef.LabelsEntry
-	1,  // 31: runtime.MetricSnapshot.typ:type_name -> runtime.MetricType
-	49, // 32: runtime.MetricSnapshot.labels:type_name -> runtime.MetricSnapshot.LabelsEntry
-	21, // 33: runtime.GetLoadReply.load:type_name -> runtime.LoadReport
-	50, // 34: runtime.LoadReport.loads:type_name -> runtime.LoadReport.LoadsEntry
-	2,  // 35: runtime.GetProfileRequest.profile_type:type_name -> runtime.ProfileType
-	26, // 36: runtime.UpdateRoutingInfoRequest.routing_info:type_name -> runtime.RoutingInfo
-	27, // 37: runtime.RoutingInfo.assignment:type_name -> runtime.Assignment
-	54, // 38: runtime.Assignment.slices:type_name -> runtime.Assignment.Slice
-	42, // 39: runtime.LogEntryBatch.entries:type_name -> runtime.LogEntry
-	45, // 40: runtime.TraceSpans.span:type_name -> runtime.Span
-	3,  // 41: runtime.Span.kind:type_name -> runtime.Span.Kind
-	55, // 42: runtime.Span.attributes:type_name -> runtime.Span.Attribute
-	56, // 43: runtime.Span.links:type_name -> runtime.Span.Link
-	57, // 44: runtime.Span.events:type_name -> runtime.Span.Event
-	58, // 45: runtime.Span.status:type_name -> runtime.Span.Status
-	59, // 46: runtime.Span.scope:type_name -> runtime.Span.Scope
-	60, // 47: runtime.Span.library:type_name -> runtime.Span.Library
-	61, // 48: runtime.Span.resource:type_name -> runtime.Span.Resource
-	51, // 49: runtime.LoadReport.LoadsEntry.value:type_name -> runtime.LoadReport.ComponentLoad
-	52, // 50: runtime.LoadReport.ComponentLoad.load:type_name -> runtime.LoadReport.SliceLoad
-	53, // 51: runtime.LoadReport.SliceLoad.splits:type_name -> runtime.LoadReport.SubsliceLoad
-	62, // 52: runtime.Span.Attribute.value:type_name -> runtime.Span.Attribute.Value
-	55, // 53: runtime.Span.Link.attributes:type_name -> runtime.Span.Attribute
-	55, // 54: runtime.Span.Event.attributes:type_name -> runtime.Span.Attribute
-	5,  // 55: runtime.Span.Status.code:type_name -> runtime.Span.Status.Code
-	55, // 56: runtime.Span.Resource.attributes:type_name -> runtime.Span.Attribute
-	4,  // 57: runtime.Span.Attribute.Value.type:type_name -> runtime.Span.Attribute.Value.Type
-	63, // 58: runtime.Span.Attribute.Value.nums:type_name -> runtime.Span.Attribute.Value.NumberList
-	64, // 59: runtime.Span.Attribute.Value.strs:type_name -> runtime.Span.Attribute.Value.StringList
-	60, // [60:60] is the sub-list for method output_type
-	60, // [60:60] is the sub-list for method input_type
-	60, // [60:60] is the sub-list for extension type_name
-	60, // [60:60] is the sub-list for extension extendee
-	0,  // [0:60] is the sub-list for field type_name
+	13, // 1: runtime.EnvelopeMsg.get_metrics_request:type_name -> runtime.GetMetricsRequest
+	19, // 2: runtime.EnvelopeMsg.get_load_request:type_name -> runtime.GetLoadRequest
+	31, // 3: runtime.EnvelopeMsg.activate_component_reply:type_name -> runtime.ActivateComponentReply
+	33, // 4: runtime.EnvelopeMsg.get_listener_address_reply:type_name -> runtime.GetListenerAddressReply
+	35, // 5: runtime.EnvelopeMsg.export_listener_reply:type_name -> runtime.ExportListenerReply
+	37, // 6: runtime.EnvelopeMsg.get_self_certificate_reply:type_name -> runtime.GetSelfCertificateReply
+	39, // 7: runtime.EnvelopeMsg.verify_client_certificate_reply:type_name -> runtime.VerifyClientCertificateReply
+	41, // 8: runtime.EnvelopeMsg.verify_server_certificate_reply:type_name -> runtime.VerifyServerCertificateReply
+	9,  // 9: runtime.WeaveletMsg.weavelet_info:type_name -> runtime.WeaveletInfo
+	42, // 10: runtime.WeaveletMsg.log_entry:type_name -> runtime.LogEntry
+	44, // 11: runtime.WeaveletMsg.trace_spans:type_name -> runtime.TraceSpans
+	14, // 12: runtime.WeaveletMsg.get_metrics_reply:type_name -> runtime.GetMetricsReply
+	20, // 13: runtime.WeaveletMsg.get_load_reply:type_name -> runtime.GetLoadReply
+	30, // 14: runtime.WeaveletMsg.activate_component_request:type_name -> runtime.ActivateComponentRequest
+	32, // 15: runtime.WeaveletMsg.get_listener_address_request:type_name -> runtime.GetListenerAddressRequest
+	34, // 16: runtime.WeaveletMsg.export_listener_request:type_name -> runtime.ExportListenerRequest
+	36, // 17: runtime.WeaveletMsg.get_self_certificate_request:type_name -> runtime.GetSelfCertificateRequest
+	38, // 18: runtime.WeaveletMsg.verify_client_certificate_request:type_name -> runtime.VerifyClientCertificateRequest
+	40, // 19: runtime.WeaveletMsg.verify_server_certificate_request:type_name -> runtime.VerifyServerCertificateRequest
+	46, // 20: runtime.EnvelopeInfo.sections:type_name -> runtime.EnvelopeInfo.SectionsEntry
+	47, // 21: runtime.EnvelopeInfo.redirects:type_name -> runtime.EnvelopeInfo.Redirect
+	10, // 22: runtime.WeaveletInfo.version:type_name -> runtime.SemVer
+	0,  // 23: runtime.GetHealthReply.status:type_name -> runtime.HealthStatus
+	15, // 24: runtime.GetMetricsReply.update:type_name -> runtime.MetricUpdate
+	16, // 25: runtime.MetricUpdate.defs:type_name -> runtime.MetricDef
+	17, // 26: runtime.MetricUpdate.values:type_name -> runtime.MetricValue
+	1,  // 27: runtime.MetricDef.typ:type_name -> runtime.MetricType
+	48, // 28: runtime.MetricDef.labels:type_name -> runtime.MetricDef.LabelsEntry
+	1,  // 29: runtime.MetricSnapshot.typ:type_name -> runtime.MetricType
+	49, // 30: runtime.MetricSnapshot.labels:type_name -> runtime.MetricSnapshot.LabelsEntry
+	21, // 31: runtime.GetLoadReply.load:type_name -> runtime.LoadReport
+	50, // 32: runtime.LoadReport.loads:type_name -> runtime.LoadReport.LoadsEntry
+	2,  // 33: runtime.GetProfileRequest.profile_type:type_name -> runtime.ProfileType
+	26, // 34: runtime.UpdateRoutingInfoRequest.routing_info:type_name -> runtime.RoutingInfo
+	27, // 35: runtime.RoutingInfo.assignment:type_name -> runtime.Assignment
+	54, // 36: runtime.Assignment.slices:type_name -> runtime.Assignment.Slice
+	42, // 37: runtime.LogEntryBatch.entries:type_name -> runtime.LogEntry
+	45, // 38: runtime.TraceSpans.span:type_name -> runtime.Span
+	3,  // 39: runtime.Span.kind:type_name -> runtime.Span.Kind
+	55, // 40: runtime.Span.attributes:type_name -> runtime.Span.Attribute
+	56, // 41: runtime.Span.links:type_name -> runtime.Span.Link
+	57, // 42: runtime.Span.events:type_name -> runtime.Span.Event
+	58, // 43: runtime.Span.status:type_name -> runtime.Span.Status
+	59, // 44: runtime.Span.scope:type_name -> runtime.Span.Scope
+	60, // 45: runtime.Span.library:type_name -> runtime.Span.Library
+	61, // 46: runtime.Span.resource:type_name -> runtime.Span.Resource
+	51, // 47: runtime.LoadReport.LoadsEntry.value:type_name -> runtime.LoadReport.ComponentLoad
+	52, // 48: runtime.LoadReport.ComponentLoad.load:type_name -> runtime.LoadReport.SliceLoad
+	53, // 49: runtime.LoadReport.SliceLoad.splits:type_name -> runtime.LoadReport.SubsliceLoad
+	62, // 50: runtime.Span.Attribute.value:type_name -> runtime.Span.Attribute.Value
+	55, // 51: runtime.Span.Link.attributes:type_name -> runtime.Span.Attribute
+	55, // 52: runtime.Span.Event.attributes:type_name -> runtime.Span.Attribute
+	5,  // 53: runtime.Span.Status.code:type_name -> runtime.Span.Status.Code
+	55, // 54: runtime.Span.Resource.attributes:type_name -> runtime.Span.Attribute
+	4,  // 55: runtime.Span.Attribute.Value.type:type_name -> runtime.Span.Attribute.Value.Type
+	63, // 56: runtime.Span.Attribute.Value.nums:type_name -> runtime.Span.Attribute.Value.NumberList
+	64, // 57: runtime.Span.Attribute.Value.strs:type_name -> runtime.Span.Attribute.Value.StringList
+	58, // [58:58] is the sub-list for method output_type
+	58, // [58:58] is the sub-list for method input_type
+	58, // [58:58] is the sub-list for extension type_name
+	58, // [58:58] is the sub-list for extension extendee
+	0,  // [0:58] is the sub-list for field type_name
 }
 
 func init() { file_runtime_protos_runtime_proto_init() }
diff --git a/runtime/protos/runtime.proto b/runtime/protos/runtime.proto
index a610f9852..cf4e73491 100644
--- a/runtime/protos/runtime.proto
+++ b/runtime/protos/runtime.proto
@@ -97,7 +97,6 @@ message EnvelopeMsg {
   EnvelopeInfo envelope_info = 2;
 
   // Envelope initiated RPC requests.
-  GetHealthRequest get_health_request = 3;
   GetMetricsRequest get_metrics_request = 4;
   GetLoadRequest get_load_request = 5;
 
@@ -110,7 +109,7 @@ message EnvelopeMsg {
   VerifyClientCertificateReply verify_client_certificate_reply = 13;
   VerifyServerCertificateReply verify_server_certificate_reply = 14;
 
-  reserved 6, 7, 8;
+  reserved 3, 6, 7, 8;
 }
 
 // WeaveletMsg is a message sent by a weavelet to an envelope.
@@ -130,7 +129,6 @@ message WeaveletMsg {
 
   // Envelope initiated RPC replies.
   string error = 5;  // non-nil on error
-  GetHealthReply get_health_reply = 6;
   GetMetricsReply get_metrics_reply = 7;
   GetLoadReply get_load_reply = 8;
 
@@ -142,7 +140,7 @@ message WeaveletMsg {
   VerifyClientCertificateRequest verify_client_certificate_request = 15;
   VerifyServerCertificateRequest verify_server_certificate_request = 16;
 
-  reserved 9, 10, 11;
+  reserved 6, 9, 10, 11;
 }
 
 // EnvelopeInfo is the information provided by an envelope to a weavelet during
diff --git a/runtime/protos/version_test.go b/runtime/protos/version_test.go
index 9eb6226fe..40323921a 100644
--- a/runtime/protos/version_test.go
+++ b/runtime/protos/version_test.go
@@ -45,7 +45,7 @@ func TestDeployerVersion(t *testing.T) {
 	got := fmt.Sprintf("%x", h.Sum(nil))
 
 	// If runtime.proto has changed, the deployer API version may need updating.
-	const want = "ebf594eced1e857f5cd24af3d95988e82260a61baf2e86100ee85ac6ac8d6ea3"
+	const want = "a4c589df11159cafac26f242d5be7a55116c399b2e2a3e75db347a42b5b9e991"
 	if got != want {
 		t.Fatalf(`Unexpected SHA-256 hash of runtime.proto: got %s, want %s. If this change is meaningful, REMEMBER TO UPDATE THE DEPLOYER API VERSION in runtime/version/version.go.`, got, want)
 	}
diff --git a/weaver_gen.go b/weaver_gen.go
index 5dd675bd7..4d0734ab5 100644
--- a/weaver_gen.go
+++ b/weaver_gen.go
@@ -37,10 +37,10 @@ func init() {
 		Iface: reflect.TypeOf((*controller)(nil)).Elem(),
 		Impl:  reflect.TypeOf(noopController{}),
 		LocalStubFn: func(impl any, caller string, tracer trace.Tracer) any {
-			return controller_local_stub{impl: impl.(controller), tracer: tracer, getProfileMetrics: codegen.MethodMetricsFor(codegen.MethodLabels{Caller: caller, Component: "github.com/ServiceWeaver/weaver/controller", Method: "GetProfile", Remote: false}), updateComponentsMetrics: codegen.MethodMetricsFor(codegen.MethodLabels{Caller: caller, Component: "github.com/ServiceWeaver/weaver/controller", Method: "UpdateComponents", Remote: false}), updateRoutingInfoMetrics: codegen.MethodMetricsFor(codegen.MethodLabels{Caller: caller, Component: "github.com/ServiceWeaver/weaver/controller", Method: "UpdateRoutingInfo", Remote: false})}
+			return controller_local_stub{impl: impl.(controller), tracer: tracer, getHealthMetrics: codegen.MethodMetricsFor(codegen.MethodLabels{Caller: caller, Component: "github.com/ServiceWeaver/weaver/controller", Method: "GetHealth", Remote: false}), getProfileMetrics: codegen.MethodMetricsFor(codegen.MethodLabels{Caller: caller, Component: "github.com/ServiceWeaver/weaver/controller", Method: "GetProfile", Remote: false}), updateComponentsMetrics: codegen.MethodMetricsFor(codegen.MethodLabels{Caller: caller, Component: "github.com/ServiceWeaver/weaver/controller", Method: "UpdateComponents", Remote: false}), updateRoutingInfoMetrics: codegen.MethodMetricsFor(codegen.MethodLabels{Caller: caller, Component: "github.com/ServiceWeaver/weaver/controller", Method: "UpdateRoutingInfo", Remote: false})}
 		},
 		ClientStubFn: func(stub codegen.Stub, caller string) any {
-			return controller_client_stub{stub: stub, getProfileMetrics: codegen.MethodMetricsFor(codegen.MethodLabels{Caller: caller, Component: "github.com/ServiceWeaver/weaver/controller", Method: "GetProfile", Remote: true}), updateComponentsMetrics: codegen.MethodMetricsFor(codegen.MethodLabels{Caller: caller, Component: "github.com/ServiceWeaver/weaver/controller", Method: "UpdateComponents", Remote: true}), updateRoutingInfoMetrics: codegen.MethodMetricsFor(codegen.MethodLabels{Caller: caller, Component: "github.com/ServiceWeaver/weaver/controller", Method: "UpdateRoutingInfo", Remote: true})}
+			return controller_client_stub{stub: stub, getHealthMetrics: codegen.MethodMetricsFor(codegen.MethodLabels{Caller: caller, Component: "github.com/ServiceWeaver/weaver/controller", Method: "GetHealth", Remote: true}), getProfileMetrics: codegen.MethodMetricsFor(codegen.MethodLabels{Caller: caller, Component: "github.com/ServiceWeaver/weaver/controller", Method: "GetProfile", Remote: true}), updateComponentsMetrics: codegen.MethodMetricsFor(codegen.MethodLabels{Caller: caller, Component: "github.com/ServiceWeaver/weaver/controller", Method: "UpdateComponents", Remote: true}), updateRoutingInfoMetrics: codegen.MethodMetricsFor(codegen.MethodLabels{Caller: caller, Component: "github.com/ServiceWeaver/weaver/controller", Method: "UpdateRoutingInfo", Remote: true})}
 		},
 		ServerStubFn: func(impl any, addLoad func(uint64, float64)) codegen.Server {
 			return controller_server_stub{impl: impl.(controller), addLoad: addLoad}
@@ -94,6 +94,7 @@ func (s logger_local_stub) LogBatch(ctx context.Context, a0 *protos.LogEntryBatc
 type controller_local_stub struct {
 	impl                     controller
 	tracer                   trace.Tracer
+	getHealthMetrics         *codegen.MethodMetrics
 	getProfileMetrics        *codegen.MethodMetrics
 	updateComponentsMetrics  *codegen.MethodMetrics
 	updateRoutingInfoMetrics *codegen.MethodMetrics
@@ -102,6 +103,26 @@ type controller_local_stub struct {
 // Check that controller_local_stub implements the controller interface.
 var _ controller = (*controller_local_stub)(nil)
 
+func (s controller_local_stub) GetHealth(ctx context.Context, a0 *protos.GetHealthRequest) (r0 *protos.GetHealthReply, err error) {
+	// Update metrics.
+	begin := s.getHealthMetrics.Begin()
+	defer func() { s.getHealthMetrics.End(begin, err != nil, 0, 0) }()
+	span := trace.SpanFromContext(ctx)
+	if span.SpanContext().IsValid() {
+		// Create a child span for this method.
+		ctx, span = s.tracer.Start(ctx, "weaver.controller.GetHealth", trace.WithSpanKind(trace.SpanKindInternal))
+		defer func() {
+			if err != nil {
+				span.RecordError(err)
+				span.SetStatus(codes.Error, err.Error())
+			}
+			span.End()
+		}()
+	}
+
+	return s.impl.GetHealth(ctx, a0)
+}
+
 func (s controller_local_stub) GetProfile(ctx context.Context, a0 *protos.GetProfileRequest) (r0 *protos.GetProfileReply, err error) {
 	// Update metrics.
 	begin := s.getProfileMetrics.Begin()
@@ -224,6 +245,7 @@ func (s logger_client_stub) LogBatch(ctx context.Context, a0 *protos.LogEntryBat
 
 type controller_client_stub struct {
 	stub                     codegen.Stub
+	getHealthMetrics         *codegen.MethodMetrics
 	getProfileMetrics        *codegen.MethodMetrics
 	updateComponentsMetrics  *codegen.MethodMetrics
 	updateRoutingInfoMetrics *codegen.MethodMetrics
@@ -232,6 +254,57 @@ type controller_client_stub struct {
 // Check that controller_client_stub implements the controller interface.
 var _ controller = (*controller_client_stub)(nil)
 
+func (s controller_client_stub) GetHealth(ctx context.Context, a0 *protos.GetHealthRequest) (r0 *protos.GetHealthReply, err error) {
+	// Update metrics.
+	var requestBytes, replyBytes int
+	begin := s.getHealthMetrics.Begin()
+	defer func() { s.getHealthMetrics.End(begin, err != nil, requestBytes, replyBytes) }()
+
+	span := trace.SpanFromContext(ctx)
+	if span.SpanContext().IsValid() {
+		// Create a child span for this method.
+		ctx, span = s.stub.Tracer().Start(ctx, "weaver.controller.GetHealth", trace.WithSpanKind(trace.SpanKindClient))
+	}
+
+	defer func() {
+		// Catch and return any panics detected during encoding/decoding/rpc.
+		if err == nil {
+			err = codegen.CatchPanics(recover())
+			if err != nil {
+				err = errors.Join(RemoteCallError, err)
+			}
+		}
+
+		if err != nil {
+			span.RecordError(err)
+			span.SetStatus(codes.Error, err.Error())
+		}
+		span.End()
+
+	}()
+
+	// Encode arguments.
+	enc := codegen.NewEncoder()
+	serviceweaver_enc_ptr_GetHealthRequest_fd6083fb(enc, a0)
+	var shardKey uint64
+
+	// Call the remote method.
+	requestBytes = len(enc.Data())
+	var results []byte
+	results, err = s.stub.Run(ctx, 0, enc.Data(), shardKey)
+	replyBytes = len(results)
+	if err != nil {
+		err = errors.Join(RemoteCallError, err)
+		return
+	}
+
+	// Decode the results.
+	dec := codegen.NewDecoder(results)
+	r0 = serviceweaver_dec_ptr_GetHealthReply_b2d11423(dec)
+	err = dec.Error()
+	return
+}
+
 func (s controller_client_stub) GetProfile(ctx context.Context, a0 *protos.GetProfileRequest) (r0 *protos.GetProfileReply, err error) {
 	// Update metrics.
 	var requestBytes, replyBytes int
@@ -269,7 +342,7 @@ func (s controller_client_stub) GetProfile(ctx context.Context, a0 *protos.GetPr
 	// Call the remote method.
 	requestBytes = len(enc.Data())
 	var results []byte
-	results, err = s.stub.Run(ctx, 0, enc.Data(), shardKey)
+	results, err = s.stub.Run(ctx, 1, enc.Data(), shardKey)
 	replyBytes = len(results)
 	if err != nil {
 		err = errors.Join(RemoteCallError, err)
@@ -320,7 +393,7 @@ func (s controller_client_stub) UpdateComponents(ctx context.Context, a0 *protos
 	// Call the remote method.
 	requestBytes = len(enc.Data())
 	var results []byte
-	results, err = s.stub.Run(ctx, 1, enc.Data(), shardKey)
+	results, err = s.stub.Run(ctx, 2, enc.Data(), shardKey)
 	replyBytes = len(results)
 	if err != nil {
 		err = errors.Join(RemoteCallError, err)
@@ -371,7 +444,7 @@ func (s controller_client_stub) UpdateRoutingInfo(ctx context.Context, a0 *proto
 	// Call the remote method.
 	requestBytes = len(enc.Data())
 	var results []byte
-	results, err = s.stub.Run(ctx, 2, enc.Data(), shardKey)
+	results, err = s.stub.Run(ctx, 3, enc.Data(), shardKey)
 	replyBytes = len(results)
 	if err != nil {
 		err = errors.Join(RemoteCallError, err)
@@ -463,6 +536,8 @@ var _ codegen.Server = (*controller_server_stub)(nil)
 // GetStubFn implements the codegen.Server interface.
 func (s controller_server_stub) GetStubFn(method string) func(ctx context.Context, args []byte) ([]byte, error) {
 	switch method {
+	case "GetHealth":
+		return s.getHealth
 	case "GetProfile":
 		return s.getProfile
 	case "UpdateComponents":
@@ -474,6 +549,31 @@ func (s controller_server_stub) GetStubFn(method string) func(ctx context.Contex
 	}
 }
 
+func (s controller_server_stub) getHealth(ctx context.Context, args []byte) (res []byte, err error) {
+	// Catch and return any panics detected during encoding/decoding/rpc.
+	defer func() {
+		if err == nil {
+			err = codegen.CatchPanics(recover())
+		}
+	}()
+
+	// Decode arguments.
+	dec := codegen.NewDecoder(args)
+	var a0 *protos.GetHealthRequest
+	a0 = serviceweaver_dec_ptr_GetHealthRequest_fd6083fb(dec)
+
+	// TODO(rgrandl): The deferred function above will recover from panics in the
+	// user code: fix this.
+	// Call the local method.
+	r0, appErr := s.impl.GetHealth(ctx, a0)
+
+	// Encode the results.
+	enc := codegen.NewEncoder()
+	serviceweaver_enc_ptr_GetHealthReply_b2d11423(enc, r0)
+	enc.Error(appErr)
+	return enc.Data(), nil
+}
+
 func (s controller_server_stub) getProfile(ctx context.Context, args []byte) (res []byte, err error) {
 	// Catch and return any panics detected during encoding/decoding/rpc.
 	defer func() {
@@ -570,6 +670,11 @@ type controller_reflect_stub struct {
 // Check that controller_reflect_stub implements the controller interface.
 var _ controller = (*controller_reflect_stub)(nil)
 
+func (s controller_reflect_stub) GetHealth(ctx context.Context, a0 *protos.GetHealthRequest) (r0 *protos.GetHealthReply, err error) {
+	err = s.caller("GetHealth", ctx, []any{a0}, []any{&r0})
+	return
+}
+
 func (s controller_reflect_stub) GetProfile(ctx context.Context, a0 *protos.GetProfileRequest) (r0 *protos.GetProfileReply, err error) {
 	err = s.caller("GetProfile", ctx, []any{a0}, []any{&r0})
 	return
@@ -605,6 +710,42 @@ func serviceweaver_dec_ptr_LogEntryBatch_fec9a5d4(dec *codegen.Decoder) *protos.
 	return &res
 }
 
+func serviceweaver_enc_ptr_GetHealthRequest_fd6083fb(enc *codegen.Encoder, arg *protos.GetHealthRequest) {
+	if arg == nil {
+		enc.Bool(false)
+	} else {
+		enc.Bool(true)
+		enc.EncodeProto(arg)
+	}
+}
+
+func serviceweaver_dec_ptr_GetHealthRequest_fd6083fb(dec *codegen.Decoder) *protos.GetHealthRequest {
+	if !dec.Bool() {
+		return nil
+	}
+	var res protos.GetHealthRequest
+	dec.DecodeProto(&res)
+	return &res
+}
+
+func serviceweaver_enc_ptr_GetHealthReply_b2d11423(enc *codegen.Encoder, arg *protos.GetHealthReply) {
+	if arg == nil {
+		enc.Bool(false)
+	} else {
+		enc.Bool(true)
+		enc.EncodeProto(arg)
+	}
+}
+
+func serviceweaver_dec_ptr_GetHealthReply_b2d11423(dec *codegen.Decoder) *protos.GetHealthReply {
+	if !dec.Bool() {
+		return nil
+	}
+	var res protos.GetHealthReply
+	dec.DecodeProto(&res)
+	return &res
+}
+
 func serviceweaver_enc_ptr_GetProfileRequest_d1544fcf(enc *codegen.Encoder, arg *protos.GetProfileRequest) {
 	if arg == nil {
 		enc.Bool(false)
diff --git a/website/blog/deployers/deployers_test.go b/website/blog/deployers/deployers_test.go
index 4e7765dfe..5c2767597 100644
--- a/website/blog/deployers/deployers_test.go
+++ b/website/blog/deployers/deployers_test.go
@@ -19,6 +19,7 @@ import (
 	"fmt"
 	"io"
 	"net/http"
+	"os"
 	"os/exec"
 	"strings"
 	"sync"
@@ -31,6 +32,7 @@ func build(t *testing.T, dirs ...string) {
 	t.Helper()
 	for _, dir := range dirs {
 		cmd := exec.Command("go", "build", ".")
+		cmd.Stderr = os.Stderr
 		cmd.Dir = dir
 		if err := cmd.Run(); err != nil {
 			t.Fatal(err)
@@ -42,6 +44,7 @@ func build(t *testing.T, dirs ...string) {
 func TestPipesDeployer(t *testing.T) {
 	build(t, "./pipes", "../../../examples/collatz")
 	cmd := exec.Command("./pipes/pipes", "../../../examples/collatz/collatz")
+	cmd.Stderr = os.Stderr
 	if err := cmd.Run(); err != nil {
 		t.Fatal(err)
 	}
diff --git a/website/blog/deployers/pipes/main.go b/website/blog/deployers/pipes/main.go
index 6376ecc8a..b5cd331b3 100644
--- a/website/blog/deployers/pipes/main.go
+++ b/website/blog/deployers/pipes/main.go
@@ -101,16 +101,16 @@ func run(ctx context.Context, binary string) error {
 	}
 	fmt.Println(prototext.Format(&reply))
 
-	// Step 4. Send a GetHealth RPC to the weavelet.
+	// Step 4. Send a GetLoad RPC to the weavelet.
 	req := &protos.EnvelopeMsg{
-		Id:               42,
-		GetHealthRequest: &protos.GetHealthRequest{},
+		Id:             42,
+		GetLoadRequest: &protos.GetLoadRequest{},
 	}
 	if err := protomsg.Write(envelopeWriter, req); err != nil {
 		return err
 	}
 
-	// Step 5. Receive a reply to the GetHealth RPC, ignoring other messages.
+	// Step 5. Receive a reply to the GetLoad RPC, ignoring other messages.
 	for {
 		var reply protos.WeaveletMsg
 		if err := protomsg.Read(envelopeReader, &reply); err != nil {