diff --git a/.gitignore b/.gitignore
index 570d41da2a..ad3a92273f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -29,7 +29,6 @@ testdata/**/go.work.sum
 **/smoketest/**/ftl-module-schema/**/*
 go-runtime/schema/testdata/test/test.go
 .cache
-.ftl-runner-info
 
 # Leaving old _ftl for now to avoid old stuff getting checked in
 **/testdata/**/_ftl
diff --git a/backend/protos/xyz/block/ftl/hotreload/v1/hotreload.pb.go b/backend/protos/xyz/block/ftl/hotreload/v1/hotreload.pb.go
index 1f1dbf8543..fc39c2b4c2 100644
--- a/backend/protos/xyz/block/ftl/hotreload/v1/hotreload.pb.go
+++ b/backend/protos/xyz/block/ftl/hotreload/v1/hotreload.pb.go
@@ -283,6 +283,154 @@ func (*WatchResponse_ReloadSuccess) isWatchResponse_Event() {}
 
 func (*WatchResponse_ReloadFailed) isWatchResponse_Event() {}
 
+type RunnerInfoRequest struct {
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	Address       string                 `protobuf:"bytes,1,opt,name=address,proto3" json:"address,omitempty"`
+	Deployment    string                 `protobuf:"bytes,2,opt,name=deployment,proto3" json:"deployment,omitempty"`
+	Databases     []*Database            `protobuf:"bytes,3,rep,name=databases,proto3" json:"databases,omitempty"`
+	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
+}
+
+func (x *RunnerInfoRequest) Reset() {
+	*x = RunnerInfoRequest{}
+	mi := &file_xyz_block_ftl_hotreload_v1_hotreload_proto_msgTypes[4]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *RunnerInfoRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*RunnerInfoRequest) ProtoMessage() {}
+
+func (x *RunnerInfoRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_xyz_block_ftl_hotreload_v1_hotreload_proto_msgTypes[4]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use RunnerInfoRequest.ProtoReflect.Descriptor instead.
+func (*RunnerInfoRequest) Descriptor() ([]byte, []int) {
+	return file_xyz_block_ftl_hotreload_v1_hotreload_proto_rawDescGZIP(), []int{4}
+}
+
+func (x *RunnerInfoRequest) GetAddress() string {
+	if x != nil {
+		return x.Address
+	}
+	return ""
+}
+
+func (x *RunnerInfoRequest) GetDeployment() string {
+	if x != nil {
+		return x.Deployment
+	}
+	return ""
+}
+
+func (x *RunnerInfoRequest) GetDatabases() []*Database {
+	if x != nil {
+		return x.Databases
+	}
+	return nil
+}
+
+type Database struct {
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	Name          string                 `protobuf:"bytes,1,opt,name=name,proto3" json:"name,omitempty"`
+	Address       string                 `protobuf:"bytes,2,opt,name=address,proto3" json:"address,omitempty"`
+	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
+}
+
+func (x *Database) Reset() {
+	*x = Database{}
+	mi := &file_xyz_block_ftl_hotreload_v1_hotreload_proto_msgTypes[5]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *Database) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*Database) ProtoMessage() {}
+
+func (x *Database) ProtoReflect() protoreflect.Message {
+	mi := &file_xyz_block_ftl_hotreload_v1_hotreload_proto_msgTypes[5]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use Database.ProtoReflect.Descriptor instead.
+func (*Database) Descriptor() ([]byte, []int) {
+	return file_xyz_block_ftl_hotreload_v1_hotreload_proto_rawDescGZIP(), []int{5}
+}
+
+func (x *Database) GetName() string {
+	if x != nil {
+		return x.Name
+	}
+	return ""
+}
+
+func (x *Database) GetAddress() string {
+	if x != nil {
+		return x.Address
+	}
+	return ""
+}
+
+type RunnerInfoResponse struct {
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
+}
+
+func (x *RunnerInfoResponse) Reset() {
+	*x = RunnerInfoResponse{}
+	mi := &file_xyz_block_ftl_hotreload_v1_hotreload_proto_msgTypes[6]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *RunnerInfoResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*RunnerInfoResponse) ProtoMessage() {}
+
+func (x *RunnerInfoResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_xyz_block_ftl_hotreload_v1_hotreload_proto_msgTypes[6]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use RunnerInfoResponse.ProtoReflect.Descriptor instead.
+func (*RunnerInfoResponse) Descriptor() ([]byte, []int) {
+	return file_xyz_block_ftl_hotreload_v1_hotreload_proto_rawDescGZIP(), []int{6}
+}
+
 type ReloadNotRequired struct {
 	state         protoimpl.MessageState `protogen:"open.v1"`
 	unknownFields protoimpl.UnknownFields
@@ -291,7 +439,7 @@ type ReloadNotRequired struct {
 
 func (x *ReloadNotRequired) Reset() {
 	*x = ReloadNotRequired{}
-	mi := &file_xyz_block_ftl_hotreload_v1_hotreload_proto_msgTypes[4]
+	mi := &file_xyz_block_ftl_hotreload_v1_hotreload_proto_msgTypes[7]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -303,7 +451,7 @@ func (x *ReloadNotRequired) String() string {
 func (*ReloadNotRequired) ProtoMessage() {}
 
 func (x *ReloadNotRequired) ProtoReflect() protoreflect.Message {
-	mi := &file_xyz_block_ftl_hotreload_v1_hotreload_proto_msgTypes[4]
+	mi := &file_xyz_block_ftl_hotreload_v1_hotreload_proto_msgTypes[7]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -316,7 +464,7 @@ func (x *ReloadNotRequired) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use ReloadNotRequired.ProtoReflect.Descriptor instead.
 func (*ReloadNotRequired) Descriptor() ([]byte, []int) {
-	return file_xyz_block_ftl_hotreload_v1_hotreload_proto_rawDescGZIP(), []int{4}
+	return file_xyz_block_ftl_hotreload_v1_hotreload_proto_rawDescGZIP(), []int{7}
 }
 
 type ReloadSuccess struct {
@@ -331,7 +479,7 @@ type ReloadSuccess struct {
 
 func (x *ReloadSuccess) Reset() {
 	*x = ReloadSuccess{}
-	mi := &file_xyz_block_ftl_hotreload_v1_hotreload_proto_msgTypes[5]
+	mi := &file_xyz_block_ftl_hotreload_v1_hotreload_proto_msgTypes[8]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -343,7 +491,7 @@ func (x *ReloadSuccess) String() string {
 func (*ReloadSuccess) ProtoMessage() {}
 
 func (x *ReloadSuccess) ProtoReflect() protoreflect.Message {
-	mi := &file_xyz_block_ftl_hotreload_v1_hotreload_proto_msgTypes[5]
+	mi := &file_xyz_block_ftl_hotreload_v1_hotreload_proto_msgTypes[8]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -356,7 +504,7 @@ func (x *ReloadSuccess) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use ReloadSuccess.ProtoReflect.Descriptor instead.
 func (*ReloadSuccess) Descriptor() ([]byte, []int) {
-	return file_xyz_block_ftl_hotreload_v1_hotreload_proto_rawDescGZIP(), []int{5}
+	return file_xyz_block_ftl_hotreload_v1_hotreload_proto_rawDescGZIP(), []int{8}
 }
 
 func (x *ReloadSuccess) GetModule() *v1.Module {
@@ -383,7 +531,7 @@ type ReloadFailed struct {
 
 func (x *ReloadFailed) Reset() {
 	*x = ReloadFailed{}
-	mi := &file_xyz_block_ftl_hotreload_v1_hotreload_proto_msgTypes[6]
+	mi := &file_xyz_block_ftl_hotreload_v1_hotreload_proto_msgTypes[9]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -395,7 +543,7 @@ func (x *ReloadFailed) String() string {
 func (*ReloadFailed) ProtoMessage() {}
 
 func (x *ReloadFailed) ProtoReflect() protoreflect.Message {
-	mi := &file_xyz_block_ftl_hotreload_v1_hotreload_proto_msgTypes[6]
+	mi := &file_xyz_block_ftl_hotreload_v1_hotreload_proto_msgTypes[9]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -408,7 +556,7 @@ func (x *ReloadFailed) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use ReloadFailed.ProtoReflect.Descriptor instead.
 func (*ReloadFailed) Descriptor() ([]byte, []int) {
-	return file_xyz_block_ftl_hotreload_v1_hotreload_proto_rawDescGZIP(), []int{6}
+	return file_xyz_block_ftl_hotreload_v1_hotreload_proto_rawDescGZIP(), []int{9}
 }
 
 func (x *ReloadFailed) GetErrors() *v11.ErrorList {
@@ -465,46 +613,67 @@ var file_xyz_block_ftl_hotreload_v1_hotreload_proto_rawDesc = []byte{
 	0x2e, 0x62, 0x6c, 0x6f, 0x63, 0x6b, 0x2e, 0x66, 0x74, 0x6c, 0x2e, 0x68, 0x6f, 0x74, 0x72, 0x65,
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+	0x5e, 0x0a, 0x05, 0x57, 0x61, 0x74, 0x63, 0x68, 0x12, 0x28, 0x2e, 0x78, 0x79, 0x7a, 0x2e, 0x62,
+	0x6c, 0x6f, 0x63, 0x6b, 0x2e, 0x66, 0x74, 0x6c, 0x2e, 0x68, 0x6f, 0x74, 0x72, 0x65, 0x6c, 0x6f,
+	0x61, 0x64, 0x2e, 0x76, 0x31, 0x2e, 0x57, 0x61, 0x74, 0x63, 0x68, 0x52, 0x65, 0x71, 0x75, 0x65,
+	0x73, 0x74, 0x1a, 0x29, 0x2e, 0x78, 0x79, 0x7a, 0x2e, 0x62, 0x6c, 0x6f, 0x63, 0x6b, 0x2e, 0x66,
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+	0x57, 0x61, 0x74, 0x63, 0x68, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x30, 0x01, 0x12,
+	0x6b, 0x0a, 0x0a, 0x52, 0x75, 0x6e, 0x6e, 0x65, 0x72, 0x49, 0x6e, 0x66, 0x6f, 0x12, 0x2d, 0x2e,
+	0x78, 0x79, 0x7a, 0x2e, 0x62, 0x6c, 0x6f, 0x63, 0x6b, 0x2e, 0x66, 0x74, 0x6c, 0x2e, 0x68, 0x6f,
+	0x74, 0x72, 0x65, 0x6c, 0x6f, 0x61, 0x64, 0x2e, 0x76, 0x31, 0x2e, 0x52, 0x75, 0x6e, 0x6e, 0x65,
+	0x72, 0x49, 0x6e, 0x66, 0x6f, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x1a, 0x2e, 0x2e, 0x78,
+	0x79, 0x7a, 0x2e, 0x62, 0x6c, 0x6f, 0x63, 0x6b, 0x2e, 0x66, 0x74, 0x6c, 0x2e, 0x68, 0x6f, 0x74,
+	0x72, 0x65, 0x6c, 0x6f, 0x61, 0x64, 0x2e, 0x76, 0x31, 0x2e, 0x52, 0x75, 0x6e, 0x6e, 0x65, 0x72,
+	0x49, 0x6e, 0x66, 0x6f, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x42, 0x4e, 0x50, 0x01,
+	0x5a, 0x4a, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x62, 0x6c, 0x6f,
+	0x63, 0x6b, 0x2f, 0x66, 0x74, 0x6c, 0x2f, 0x62, 0x61, 0x63, 0x6b, 0x65, 0x6e, 0x64, 0x2f, 0x70,
+	0x72, 0x6f, 0x74, 0x6f, 0x73, 0x2f, 0x78, 0x79, 0x7a, 0x2f, 0x62, 0x6c, 0x6f, 0x63, 0x6b, 0x2f,
+	0x66, 0x74, 0x6c, 0x2f, 0x68, 0x6f, 0x74, 0x72, 0x65, 0x6c, 0x6f, 0x61, 0x64, 0x2f, 0x76, 0x31,
+	0x3b, 0x68, 0x6f, 0x74, 0x72, 0x65, 0x6c, 0x6f, 0x61, 0x64, 0x70, 0x62, 0x62, 0x06, 0x70, 0x72,
+	0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (
@@ -519,40 +688,46 @@ func file_xyz_block_ftl_hotreload_v1_hotreload_proto_rawDescGZIP() []byte {
 	return file_xyz_block_ftl_hotreload_v1_hotreload_proto_rawDescData
 }
 
-var file_xyz_block_ftl_hotreload_v1_hotreload_proto_msgTypes = make([]protoimpl.MessageInfo, 7)
+var file_xyz_block_ftl_hotreload_v1_hotreload_proto_msgTypes = make([]protoimpl.MessageInfo, 10)
 var file_xyz_block_ftl_hotreload_v1_hotreload_proto_goTypes = []any{
-	(*ReloadRequest)(nil),     // 0: xyz.block.ftl.hotreload.v1.ReloadRequest
-	(*ReloadResponse)(nil),    // 1: xyz.block.ftl.hotreload.v1.ReloadResponse
-	(*WatchRequest)(nil),      // 2: xyz.block.ftl.hotreload.v1.WatchRequest
-	(*WatchResponse)(nil),     // 3: xyz.block.ftl.hotreload.v1.WatchResponse
-	(*ReloadNotRequired)(nil), // 4: xyz.block.ftl.hotreload.v1.ReloadNotRequired
-	(*ReloadSuccess)(nil),     // 5: xyz.block.ftl.hotreload.v1.ReloadSuccess
-	(*ReloadFailed)(nil),      // 6: xyz.block.ftl.hotreload.v1.ReloadFailed
-	(*v1.Module)(nil),         // 7: xyz.block.ftl.schema.v1.Module
-	(*v11.ErrorList)(nil),     // 8: xyz.block.ftl.language.v1.ErrorList
-	(*v12.PingRequest)(nil),   // 9: xyz.block.ftl.v1.PingRequest
-	(*v12.PingResponse)(nil),  // 10: xyz.block.ftl.v1.PingResponse
+	(*ReloadRequest)(nil),      // 0: xyz.block.ftl.hotreload.v1.ReloadRequest
+	(*ReloadResponse)(nil),     // 1: xyz.block.ftl.hotreload.v1.ReloadResponse
+	(*WatchRequest)(nil),       // 2: xyz.block.ftl.hotreload.v1.WatchRequest
+	(*WatchResponse)(nil),      // 3: xyz.block.ftl.hotreload.v1.WatchResponse
+	(*RunnerInfoRequest)(nil),  // 4: xyz.block.ftl.hotreload.v1.RunnerInfoRequest
+	(*Database)(nil),           // 5: xyz.block.ftl.hotreload.v1.Database
+	(*RunnerInfoResponse)(nil), // 6: xyz.block.ftl.hotreload.v1.RunnerInfoResponse
+	(*ReloadNotRequired)(nil),  // 7: xyz.block.ftl.hotreload.v1.ReloadNotRequired
+	(*ReloadSuccess)(nil),      // 8: xyz.block.ftl.hotreload.v1.ReloadSuccess
+	(*ReloadFailed)(nil),       // 9: xyz.block.ftl.hotreload.v1.ReloadFailed
+	(*v1.Module)(nil),          // 10: xyz.block.ftl.schema.v1.Module
+	(*v11.ErrorList)(nil),      // 11: xyz.block.ftl.language.v1.ErrorList
+	(*v12.PingRequest)(nil),    // 12: xyz.block.ftl.v1.PingRequest
+	(*v12.PingResponse)(nil),   // 13: xyz.block.ftl.v1.PingResponse
 }
 var file_xyz_block_ftl_hotreload_v1_hotreload_proto_depIdxs = []int32{
-	4,  // 0: xyz.block.ftl.hotreload.v1.ReloadResponse.reload_not_required:type_name -> xyz.block.ftl.hotreload.v1.ReloadNotRequired
-	5,  // 1: xyz.block.ftl.hotreload.v1.ReloadResponse.reload_success:type_name -> xyz.block.ftl.hotreload.v1.ReloadSuccess
-	6,  // 2: xyz.block.ftl.hotreload.v1.ReloadResponse.reload_failed:type_name -> xyz.block.ftl.hotreload.v1.ReloadFailed
-	5,  // 3: xyz.block.ftl.hotreload.v1.WatchResponse.reload_success:type_name -> xyz.block.ftl.hotreload.v1.ReloadSuccess
-	6,  // 4: xyz.block.ftl.hotreload.v1.WatchResponse.reload_failed:type_name -> xyz.block.ftl.hotreload.v1.ReloadFailed
-	7,  // 5: xyz.block.ftl.hotreload.v1.ReloadSuccess.module:type_name -> xyz.block.ftl.schema.v1.Module
-	8,  // 6: xyz.block.ftl.hotreload.v1.ReloadSuccess.errors:type_name -> xyz.block.ftl.language.v1.ErrorList
-	8,  // 7: xyz.block.ftl.hotreload.v1.ReloadFailed.errors:type_name -> xyz.block.ftl.language.v1.ErrorList
-	9,  // 8: xyz.block.ftl.hotreload.v1.HotReloadService.Ping:input_type -> xyz.block.ftl.v1.PingRequest
-	0,  // 9: xyz.block.ftl.hotreload.v1.HotReloadService.Reload:input_type -> xyz.block.ftl.hotreload.v1.ReloadRequest
-	2,  // 10: xyz.block.ftl.hotreload.v1.HotReloadService.Watch:input_type -> xyz.block.ftl.hotreload.v1.WatchRequest
-	10, // 11: xyz.block.ftl.hotreload.v1.HotReloadService.Ping:output_type -> xyz.block.ftl.v1.PingResponse
-	1,  // 12: xyz.block.ftl.hotreload.v1.HotReloadService.Reload:output_type -> xyz.block.ftl.hotreload.v1.ReloadResponse
-	3,  // 13: xyz.block.ftl.hotreload.v1.HotReloadService.Watch:output_type -> xyz.block.ftl.hotreload.v1.WatchResponse
-	11, // [11:14] is the sub-list for method output_type
-	8,  // [8:11] is the sub-list for method input_type
-	8,  // [8:8] is the sub-list for extension type_name
-	8,  // [8:8] is the sub-list for extension extendee
-	0,  // [0:8] is the sub-list for field type_name
+	7,  // 0: xyz.block.ftl.hotreload.v1.ReloadResponse.reload_not_required:type_name -> xyz.block.ftl.hotreload.v1.ReloadNotRequired
+	8,  // 1: xyz.block.ftl.hotreload.v1.ReloadResponse.reload_success:type_name -> xyz.block.ftl.hotreload.v1.ReloadSuccess
+	9,  // 2: xyz.block.ftl.hotreload.v1.ReloadResponse.reload_failed:type_name -> xyz.block.ftl.hotreload.v1.ReloadFailed
+	8,  // 3: xyz.block.ftl.hotreload.v1.WatchResponse.reload_success:type_name -> xyz.block.ftl.hotreload.v1.ReloadSuccess
+	9,  // 4: xyz.block.ftl.hotreload.v1.WatchResponse.reload_failed:type_name -> xyz.block.ftl.hotreload.v1.ReloadFailed
+	5,  // 5: xyz.block.ftl.hotreload.v1.RunnerInfoRequest.databases:type_name -> xyz.block.ftl.hotreload.v1.Database
+	10, // 6: xyz.block.ftl.hotreload.v1.ReloadSuccess.module:type_name -> xyz.block.ftl.schema.v1.Module
+	11, // 7: xyz.block.ftl.hotreload.v1.ReloadSuccess.errors:type_name -> xyz.block.ftl.language.v1.ErrorList
+	11, // 8: xyz.block.ftl.hotreload.v1.ReloadFailed.errors:type_name -> xyz.block.ftl.language.v1.ErrorList
+	12, // 9: xyz.block.ftl.hotreload.v1.HotReloadService.Ping:input_type -> xyz.block.ftl.v1.PingRequest
+	0,  // 10: xyz.block.ftl.hotreload.v1.HotReloadService.Reload:input_type -> xyz.block.ftl.hotreload.v1.ReloadRequest
+	2,  // 11: xyz.block.ftl.hotreload.v1.HotReloadService.Watch:input_type -> xyz.block.ftl.hotreload.v1.WatchRequest
+	4,  // 12: xyz.block.ftl.hotreload.v1.HotReloadService.RunnerInfo:input_type -> xyz.block.ftl.hotreload.v1.RunnerInfoRequest
+	13, // 13: xyz.block.ftl.hotreload.v1.HotReloadService.Ping:output_type -> xyz.block.ftl.v1.PingResponse
+	1,  // 14: xyz.block.ftl.hotreload.v1.HotReloadService.Reload:output_type -> xyz.block.ftl.hotreload.v1.ReloadResponse
+	3,  // 15: xyz.block.ftl.hotreload.v1.HotReloadService.Watch:output_type -> xyz.block.ftl.hotreload.v1.WatchResponse
+	6,  // 16: xyz.block.ftl.hotreload.v1.HotReloadService.RunnerInfo:output_type -> xyz.block.ftl.hotreload.v1.RunnerInfoResponse
+	13, // [13:17] is the sub-list for method output_type
+	9,  // [9:13] is the sub-list for method input_type
+	9,  // [9:9] is the sub-list for extension type_name
+	9,  // [9:9] is the sub-list for extension extendee
+	0,  // [0:9] is the sub-list for field type_name
 }
 
 func init() { file_xyz_block_ftl_hotreload_v1_hotreload_proto_init() }
@@ -575,7 +750,7 @@ func file_xyz_block_ftl_hotreload_v1_hotreload_proto_init() {
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
 			RawDescriptor: file_xyz_block_ftl_hotreload_v1_hotreload_proto_rawDesc,
 			NumEnums:      0,
-			NumMessages:   7,
+			NumMessages:   10,
 			NumExtensions: 0,
 			NumServices:   1,
 		},
diff --git a/backend/protos/xyz/block/ftl/hotreload/v1/hotreload.proto b/backend/protos/xyz/block/ftl/hotreload/v1/hotreload.proto
index 626d1307e6..122969f642 100644
--- a/backend/protos/xyz/block/ftl/hotreload/v1/hotreload.proto
+++ b/backend/protos/xyz/block/ftl/hotreload/v1/hotreload.proto
@@ -32,6 +32,19 @@ message WatchResponse {
   }
 }
 
+message RunnerInfoRequest {
+  string address = 1;
+  string deployment = 2;
+  repeated Database databases = 3;
+}
+
+message Database {
+  string name = 1;
+  string address = 2;
+}
+
+message RunnerInfoResponse {
+}
 
 message ReloadNotRequired {}
 
@@ -61,4 +74,7 @@ service HotReloadService {
 
   // Watch for hot reloads not initiated by an explicit Reload call.
   rpc Watch(WatchRequest) returns (stream WatchResponse);
+
+  // Invoked by the runner to provide runner information to the plugin.
+  rpc RunnerInfo(RunnerInfoRequest) returns (RunnerInfoResponse);
 }
diff --git a/backend/protos/xyz/block/ftl/hotreload/v1/hotreloadpbconnect/hotreload.connect.go b/backend/protos/xyz/block/ftl/hotreload/v1/hotreloadpbconnect/hotreload.connect.go
index 879f6c2aef..667b1795ad 100644
--- a/backend/protos/xyz/block/ftl/hotreload/v1/hotreloadpbconnect/hotreload.connect.go
+++ b/backend/protos/xyz/block/ftl/hotreload/v1/hotreloadpbconnect/hotreload.connect.go
@@ -40,6 +40,9 @@ const (
 	HotReloadServiceReloadProcedure = "/xyz.block.ftl.hotreload.v1.HotReloadService/Reload"
 	// HotReloadServiceWatchProcedure is the fully-qualified name of the HotReloadService's Watch RPC.
 	HotReloadServiceWatchProcedure = "/xyz.block.ftl.hotreload.v1.HotReloadService/Watch"
+	// HotReloadServiceRunnerInfoProcedure is the fully-qualified name of the HotReloadService's
+	// RunnerInfo RPC.
+	HotReloadServiceRunnerInfoProcedure = "/xyz.block.ftl.hotreload.v1.HotReloadService/RunnerInfo"
 )
 
 // HotReloadServiceClient is a client for the xyz.block.ftl.hotreload.v1.HotReloadService service.
@@ -51,6 +54,8 @@ type HotReloadServiceClient interface {
 	Reload(context.Context, *connect.Request[v11.ReloadRequest]) (*connect.Response[v11.ReloadResponse], error)
 	// Watch for hot reloads not initiated by an explicit Reload call.
 	Watch(context.Context, *connect.Request[v11.WatchRequest]) (*connect.ServerStreamForClient[v11.WatchResponse], error)
+	// Invoked by the runner to provide runner information to the plugin.
+	RunnerInfo(context.Context, *connect.Request[v11.RunnerInfoRequest]) (*connect.Response[v11.RunnerInfoResponse], error)
 }
 
 // NewHotReloadServiceClient constructs a client for the xyz.block.ftl.hotreload.v1.HotReloadService
@@ -79,14 +84,20 @@ func NewHotReloadServiceClient(httpClient connect.HTTPClient, baseURL string, op
 			baseURL+HotReloadServiceWatchProcedure,
 			opts...,
 		),
+		runnerInfo: connect.NewClient[v11.RunnerInfoRequest, v11.RunnerInfoResponse](
+			httpClient,
+			baseURL+HotReloadServiceRunnerInfoProcedure,
+			opts...,
+		),
 	}
 }
 
 // hotReloadServiceClient implements HotReloadServiceClient.
 type hotReloadServiceClient struct {
-	ping   *connect.Client[v1.PingRequest, v1.PingResponse]
-	reload *connect.Client[v11.ReloadRequest, v11.ReloadResponse]
-	watch  *connect.Client[v11.WatchRequest, v11.WatchResponse]
+	ping       *connect.Client[v1.PingRequest, v1.PingResponse]
+	reload     *connect.Client[v11.ReloadRequest, v11.ReloadResponse]
+	watch      *connect.Client[v11.WatchRequest, v11.WatchResponse]
+	runnerInfo *connect.Client[v11.RunnerInfoRequest, v11.RunnerInfoResponse]
 }
 
 // Ping calls xyz.block.ftl.hotreload.v1.HotReloadService.Ping.
@@ -104,6 +115,11 @@ func (c *hotReloadServiceClient) Watch(ctx context.Context, req *connect.Request
 	return c.watch.CallServerStream(ctx, req)
 }
 
+// RunnerInfo calls xyz.block.ftl.hotreload.v1.HotReloadService.RunnerInfo.
+func (c *hotReloadServiceClient) RunnerInfo(ctx context.Context, req *connect.Request[v11.RunnerInfoRequest]) (*connect.Response[v11.RunnerInfoResponse], error) {
+	return c.runnerInfo.CallUnary(ctx, req)
+}
+
 // HotReloadServiceHandler is an implementation of the xyz.block.ftl.hotreload.v1.HotReloadService
 // service.
 type HotReloadServiceHandler interface {
@@ -114,6 +130,8 @@ type HotReloadServiceHandler interface {
 	Reload(context.Context, *connect.Request[v11.ReloadRequest]) (*connect.Response[v11.ReloadResponse], error)
 	// Watch for hot reloads not initiated by an explicit Reload call.
 	Watch(context.Context, *connect.Request[v11.WatchRequest], *connect.ServerStream[v11.WatchResponse]) error
+	// Invoked by the runner to provide runner information to the plugin.
+	RunnerInfo(context.Context, *connect.Request[v11.RunnerInfoRequest]) (*connect.Response[v11.RunnerInfoResponse], error)
 }
 
 // NewHotReloadServiceHandler builds an HTTP handler from the service implementation. It returns the
@@ -138,6 +156,11 @@ func NewHotReloadServiceHandler(svc HotReloadServiceHandler, opts ...connect.Han
 		svc.Watch,
 		opts...,
 	)
+	hotReloadServiceRunnerInfoHandler := connect.NewUnaryHandler(
+		HotReloadServiceRunnerInfoProcedure,
+		svc.RunnerInfo,
+		opts...,
+	)
 	return "/xyz.block.ftl.hotreload.v1.HotReloadService/", http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 		switch r.URL.Path {
 		case HotReloadServicePingProcedure:
@@ -146,6 +169,8 @@ func NewHotReloadServiceHandler(svc HotReloadServiceHandler, opts ...connect.Han
 			hotReloadServiceReloadHandler.ServeHTTP(w, r)
 		case HotReloadServiceWatchProcedure:
 			hotReloadServiceWatchHandler.ServeHTTP(w, r)
+		case HotReloadServiceRunnerInfoProcedure:
+			hotReloadServiceRunnerInfoHandler.ServeHTTP(w, r)
 		default:
 			http.NotFound(w, r)
 		}
@@ -166,3 +191,7 @@ func (UnimplementedHotReloadServiceHandler) Reload(context.Context, *connect.Req
 func (UnimplementedHotReloadServiceHandler) Watch(context.Context, *connect.Request[v11.WatchRequest], *connect.ServerStream[v11.WatchResponse]) error {
 	return connect.NewError(connect.CodeUnimplemented, errors.New("xyz.block.ftl.hotreload.v1.HotReloadService.Watch is not implemented"))
 }
+
+func (UnimplementedHotReloadServiceHandler) RunnerInfo(context.Context, *connect.Request[v11.RunnerInfoRequest]) (*connect.Response[v11.RunnerInfoResponse], error) {
+	return nil, connect.NewError(connect.CodeUnimplemented, errors.New("xyz.block.ftl.hotreload.v1.HotReloadService.RunnerInfo is not implemented"))
+}
diff --git a/backend/protos/xyz/block/ftl/language/v1/language.pb.go b/backend/protos/xyz/block/ftl/language/v1/language.pb.go
index 745bbf2765..e6ea1d5e23 100644
--- a/backend/protos/xyz/block/ftl/language/v1/language.pb.go
+++ b/backend/protos/xyz/block/ftl/language/v1/language.pb.go
@@ -1271,10 +1271,10 @@ type BuildSuccess struct {
 	DevEndpoint *string `protobuf:"bytes,7,opt,name=dev_endpoint,json=devEndpoint,proto3,oneof" json:"dev_endpoint,omitempty"`
 	// Dev mode debug port
 	DebugPort *int32 `protobuf:"varint,8,opt,name=debug_port,json=debugPort,proto3,oneof" json:"debug_port,omitempty"`
-	// Dev mode runner info file, this file is used to allow the runner to communicate provisioner info back to the plugin
-	DevRunnerInfoFile *string `protobuf:"bytes,9,opt,name=dev_runner_info_file,json=devRunnerInfoFile,proto3,oneof" json:"dev_runner_info_file,omitempty"`
-	unknownFields     protoimpl.UnknownFields
-	sizeCache         protoimpl.SizeCache
+	// Dev mode hot reload endpoint, this is used to allow the runner to communicate info back to the running process
+	DevHotReloadEndpoint *string `protobuf:"bytes,9,opt,name=dev_hot_reload_endpoint,json=devHotReloadEndpoint,proto3,oneof" json:"dev_hot_reload_endpoint,omitempty"`
+	unknownFields        protoimpl.UnknownFields
+	sizeCache            protoimpl.SizeCache
 }
 
 func (x *BuildSuccess) Reset() {
@@ -1363,9 +1363,9 @@ func (x *BuildSuccess) GetDebugPort() int32 {
 	return 0
 }
 
-func (x *BuildSuccess) GetDevRunnerInfoFile() string {
-	if x != nil && x.DevRunnerInfoFile != nil {
-		return *x.DevRunnerInfoFile
+func (x *BuildSuccess) GetDevHotReloadEndpoint() string {
+	if x != nil && x.DevHotReloadEndpoint != nil {
+		return *x.DevHotReloadEndpoint
 	}
 	return ""
 }
@@ -2047,7 +2047,7 @@ var file_xyz_block_ftl_language_v1_language_proto_rawDesc = []byte{
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@@ -2069,154 +2069,155 @@ var file_xyz_block_ftl_language_v1_language_proto_rawDesc = []byte{
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+	0x6f, 0x33,
 }
 
 var (
diff --git a/backend/protos/xyz/block/ftl/language/v1/language.proto b/backend/protos/xyz/block/ftl/language/v1/language.proto
index 62a49bc068..6d4dc932f4 100644
--- a/backend/protos/xyz/block/ftl/language/v1/language.proto
+++ b/backend/protos/xyz/block/ftl/language/v1/language.proto
@@ -237,8 +237,8 @@ message BuildSuccess {
   // Dev mode debug port
   optional int32 debug_port = 8;
 
-  // Dev mode runner info file, this file is used to allow the runner to communicate provisioner info back to the plugin
-  optional string dev_runner_info_file = 9;
+  // Dev mode hot reload endpoint, this is used to allow the runner to communicate info back to the running process
+  optional string dev_hot_reload_endpoint = 9;
 }
 
 // BuildFailure should be sent when a build fails.
diff --git a/backend/provisioner/scaling/localscaling/local_scaling.go b/backend/provisioner/scaling/localscaling/local_scaling.go
index e393d417ad..80de96b63e 100644
--- a/backend/provisioner/scaling/localscaling/local_scaling.go
+++ b/backend/provisioner/scaling/localscaling/local_scaling.go
@@ -100,11 +100,11 @@ func (l *localScaling) TerminatePreviousDeployments(ctx context.Context, module
 }
 
 type devModeRunner struct {
-	uri url.URL
+	uri          string
+	hotReloadURI string
 	// The deployment key of the deployment that is currently running
-	deploymentKey  optional.Option[key.Deployment]
-	debugPort      int
-	runnerInfoFile optional.Option[string]
+	deploymentKey optional.Option[key.Deployment]
+	debugPort     int
 }
 
 func (l *localScaling) Start(ctx context.Context) error {
@@ -122,9 +122,9 @@ func (l *localScaling) Start(ctx context.Context) error {
 // Must be called under lock
 func (l *localScaling) updateDevModeEndpoint(ctx context.Context, devEndpoints dev.LocalEndpoint) {
 	l.devModeEndpoints[devEndpoints.Module] = &devModeRunner{
-		uri:            devEndpoints.Endpoint,
-		debugPort:      devEndpoints.DebugPort,
-		runnerInfoFile: devEndpoints.RunnerInfoFile,
+		uri:          devEndpoints.Endpoint,
+		debugPort:    devEndpoints.DebugPort,
+		hotReloadURI: devEndpoints.HotReloadEndpoint,
 	}
 	if ide, ok := l.ideSupport.Get(); ok {
 		if devEndpoints.DebugPort != 0 {
@@ -255,12 +255,12 @@ func (l *localScaling) startRunner(ctx context.Context, deploymentKey key.Deploy
 	}
 
 	devEndpoint := l.devModeEndpoints[info.module]
-	devURI := optional.None[url.URL]()
-	devRunnerInfoFile := optional.None[string]()
+	devURI := optional.None[string]()
+	devHotReloadURI := optional.None[string]()
 	debugPort := 0
 	if devEndpoint != nil {
 		devURI = optional.Some(devEndpoint.uri)
-		devRunnerInfoFile = devEndpoint.runnerInfoFile
+		devHotReloadURI = optional.Some(devEndpoint.hotReloadURI)
 		if devKey, ok := devEndpoint.deploymentKey.Get(); ok && devKey.Equal(deploymentKey) {
 			// Already running, don't start another
 			return nil
@@ -297,14 +297,14 @@ func (l *localScaling) startRunner(ctx context.Context, deploymentKey key.Deploy
 		return fmt.Errorf("failed to start runner: %w", err)
 	}
 	config := runner.Config{
-		Bind:               bindURL,
-		ControllerEndpoint: controllerEndpoint,
-		LeaseEndpoint:      l.leaseAddress,
-		Key:                key.NewLocalRunnerKey(keySuffix),
-		Deployment:         deploymentKey,
-		DebugPort:          debugPort,
-		DevEndpoint:        devURI,
-		DevRunnerInfoFile:  devRunnerInfoFile,
+		Bind:                 bindURL,
+		ControllerEndpoint:   controllerEndpoint,
+		LeaseEndpoint:        l.leaseAddress,
+		Key:                  key.NewLocalRunnerKey(keySuffix),
+		Deployment:           deploymentKey,
+		DebugPort:            debugPort,
+		DevEndpoint:          devURI,
+		DevHotReloadEndpoint: devHotReloadURI,
 	}
 
 	simpleName := fmt.Sprintf("runner%d", keySuffix)
diff --git a/backend/runner/runner.go b/backend/runner/runner.go
index aabfb775f9..a974a47b97 100644
--- a/backend/runner/runner.go
+++ b/backend/runner/runner.go
@@ -29,8 +29,11 @@ import (
 	"google.golang.org/protobuf/types/known/structpb"
 
 	mysql "github.com/block/ftl-mysql-auth-proxy"
+
 	"github.com/block/ftl/backend/controller/artefacts"
 	ftldeploymentconnect "github.com/block/ftl/backend/protos/xyz/block/ftl/deployment/v1/deploymentpbconnect"
+	hotreloadpb "github.com/block/ftl/backend/protos/xyz/block/ftl/hotreload/v1"
+	"github.com/block/ftl/backend/protos/xyz/block/ftl/hotreload/v1/hotreloadpbconnect"
 	ftlleaseconnect "github.com/block/ftl/backend/protos/xyz/block/ftl/lease/v1/leasepbconnect"
 	"github.com/block/ftl/backend/protos/xyz/block/ftl/pubsub/v1/pubsubpbconnect"
 	"github.com/block/ftl/backend/protos/xyz/block/ftl/query/v1/querypbconnect"
@@ -57,22 +60,22 @@ import (
 )
 
 type Config struct {
-	Config                []string                 `name:"config" short:"C" help:"Paths to FTL project configuration files." env:"FTL_CONFIG" placeholder:"FILE[,FILE,...]" type:"existingfile"`
-	Bind                  *url.URL                 `help:"Endpoint the Runner should bind to and advertise." default:"http://127.0.0.1:8892" env:"FTL_BIND"`
-	Key                   key.Runner               `help:"Runner key (auto)."`
-	ControllerEndpoint    *url.URL                 `name:"ftl-endpoint" help:"Controller endpoint." env:"FTL_ENDPOINT" default:"http://127.0.0.1:8892"`
-	LeaseEndpoint         *url.URL                 `name:"ftl-lease-endpoint" help:"Lease endpoint endpoint." env:"FTL_LEASE_ENDPOINT" default:"http://127.0.0.1:8895"`
-	QueryEndpoint         *url.URL                 `name:"ftl-query-endpoint" help:"Query endpoint." env:"FTL_QUERY_ENDPOINT" default:"http://127.0.0.1:8897"`
-	TimelineEndpoint      *url.URL                 `help:"Timeline endpoint." env:"FTL_TIMELINE_ENDPOINT" default:"http://127.0.0.1:8894"`
-	TemplateDir           string                   `help:"Template directory to copy into each deployment, if any." type:"existingdir"`
-	DeploymentDir         string                   `help:"Directory to store deployments in." default:"${deploymentdir}"`
-	DeploymentKeepHistory int                      `help:"Number of deployments to keep history for." default:"3"`
-	HeartbeatPeriod       time.Duration            `help:"Minimum period between heartbeats." default:"3s"`
-	HeartbeatJitter       time.Duration            `help:"Jitter to add to heartbeat period." default:"2s"`
-	Deployment            key.Deployment           `help:"The deployment this runner is for." env:"FTL_DEPLOYMENT"`
-	DebugPort             int                      `help:"The port to use for debugging." env:"FTL_DEBUG_PORT"`
-	DevEndpoint           optional.Option[url.URL] `help:"An existing endpoint to connect to in development mode" hidden:""`
-	DevRunnerInfoFile     optional.Option[string]  `help:"The path to a file that we write dev endpoint information to." hidden:""`
+	Config                []string                `name:"config" short:"C" help:"Paths to FTL project configuration files." env:"FTL_CONFIG" placeholder:"FILE[,FILE,...]" type:"existingfile"`
+	Bind                  *url.URL                `help:"Endpoint the Runner should bind to and advertise." default:"http://127.0.0.1:8892" env:"FTL_BIND"`
+	Key                   key.Runner              `help:"Runner key (auto)."`
+	ControllerEndpoint    *url.URL                `name:"ftl-endpoint" help:"Controller endpoint." env:"FTL_ENDPOINT" default:"http://127.0.0.1:8892"`
+	LeaseEndpoint         *url.URL                `name:"ftl-lease-endpoint" help:"Lease endpoint endpoint." env:"FTL_LEASE_ENDPOINT" default:"http://127.0.0.1:8895"`
+	QueryEndpoint         *url.URL                `name:"ftl-query-endpoint" help:"Query endpoint." env:"FTL_QUERY_ENDPOINT" default:"http://127.0.0.1:8897"`
+	TimelineEndpoint      *url.URL                `help:"Timeline endpoint." env:"FTL_TIMELINE_ENDPOINT" default:"http://127.0.0.1:8894"`
+	TemplateDir           string                  `help:"Template directory to copy into each deployment, if any." type:"existingdir"`
+	DeploymentDir         string                  `help:"Directory to store deployments in." default:"${deploymentdir}"`
+	DeploymentKeepHistory int                     `help:"Number of deployments to keep history for." default:"3"`
+	HeartbeatPeriod       time.Duration           `help:"Minimum period between heartbeats." default:"3s"`
+	HeartbeatJitter       time.Duration           `help:"Jitter to add to heartbeat period." default:"2s"`
+	Deployment            key.Deployment          `help:"The deployment this runner is for." env:"FTL_DEPLOYMENT"`
+	DebugPort             int                     `help:"The port to use for debugging." env:"FTL_DEBUG_PORT"`
+	DevEndpoint           optional.Option[string] `help:"An existing endpoint to connect to in development mode" hidden:""`
+	DevHotReloadEndpoint  optional.Option[string] `help:"The gRPC enpoint to send runner into to for hot reload." hidden:""`
 }
 
 func Start(ctx context.Context, config Config, storage *artefacts.OCIArtefactService) error {
@@ -119,17 +122,17 @@ func Start(ctx context.Context, config Config, storage *artefacts.OCIArtefactSer
 	timelineClient := timeline.NewClient(ctx, config.TimelineEndpoint)
 
 	svc := &Service{
-		key:                runnerKey,
-		config:             config,
-		storage:            storage,
-		controllerClient:   controllerClient,
-		timelineClient:     timelineClient,
-		labels:             labels,
-		deploymentLogQueue: make(chan log.Entry, 10000),
-		cancelFunc:         doneFunc,
-		devEndpoint:        config.DevEndpoint,
-		devRunnerInfoFile:  config.DevRunnerInfoFile,
-		queryServices:      query.NewMultiService(),
+		key:                  runnerKey,
+		config:               config,
+		storage:              storage,
+		controllerClient:     controllerClient,
+		timelineClient:       timelineClient,
+		labels:               labels,
+		deploymentLogQueue:   make(chan log.Entry, 10000),
+		cancelFunc:           doneFunc,
+		devEndpoint:          config.DevEndpoint,
+		devHotReloadEndpoint: config.DevHotReloadEndpoint,
+		queryServices:        query.NewMultiService(),
 	}
 
 	module, err := svc.getModule(ctx, config.Deployment)
@@ -245,10 +248,11 @@ var _ ftlv1connect.VerbServiceHandler = (*Service)(nil)
 type deployment struct {
 	key key.Deployment
 	// Cancelled when plugin terminates
-	ctx      context.Context
-	cmd      optional.Option[exec.Cmd]
-	endpoint *url.URL // The endpoint the plugin is listening on.
-	client   ftlv1connect.VerbServiceClient
+	ctx          context.Context
+	cmd          optional.Option[exec.Cmd]
+	endpoint     string // The endpoint the plugin is listening on.
+	client       ftlv1connect.VerbServiceClient
+	reverseProxy *httputil.ReverseProxy
 }
 
 type Service struct {
@@ -262,16 +266,16 @@ type Service struct {
 	controllerClient ftlv1connect.ControllerServiceClient
 	timelineClient   *timeline.Client
 	// Failed to register with the Controller
-	registrationFailure atomic.Value[optional.Option[error]]
-	labels              *structpb.Struct
-	deploymentLogQueue  chan log.Entry
-	cancelFunc          func()
-	devEndpoint         optional.Option[url.URL]
-	devRunnerInfoFile   optional.Option[string]
-	proxy               *proxy.Service
-	pubSub              *pubsub.Service
-	queryServices       *query.MultiService
-	proxyBindAddress    *url.URL
+	registrationFailure  atomic.Value[optional.Option[error]]
+	labels               *structpb.Struct
+	deploymentLogQueue   chan log.Entry
+	cancelFunc           func()
+	devEndpoint          optional.Option[string]
+	devHotReloadEndpoint optional.Option[string]
+	proxy                *proxy.Service
+	pubSub               *pubsub.Service
+	queryServices        *query.MultiService
+	proxyBindAddress     *url.URL
 }
 
 func (s *Service) Call(ctx context.Context, req *connect.Request[ftlv1.CallRequest]) (*connect.Response[ftlv1.CallResponse], error) {
@@ -387,27 +391,38 @@ func (s *Service) deploy(ctx context.Context, key key.Deployment, module *schema
 
 	var dep *deployment
 	if ep, ok := s.devEndpoint.Get(); ok {
-		client := rpc.Dial(ftlv1connect.NewVerbServiceClient, ep.String(), log.Error)
-		dep = &deployment{
-			ctx:      ctx,
-			key:      key,
-			cmd:      optional.None[exec.Cmd](),
-			endpoint: &ep,
-			client:   client,
-		}
-		if file, ok := s.devRunnerInfoFile.Get(); ok {
-			fileContents := "proxy.bind.address=" + s.proxyBindAddress.String()
-			fileContents += fmt.Sprintf("\ndeployment=%s", s.config.Deployment.String())
+		if hotRelaodEp, ok := s.devHotReloadEndpoint.Get(); ok {
+			hotReloadClient := rpc.Dial(hotreloadpbconnect.NewHotReloadServiceClient, hotRelaodEp, log.Error)
+			err = rpc.Wait(ctx, backoff.Backoff{}, time.Minute, hotReloadClient)
+			if err != nil {
+				return fmt.Errorf("failed to ping hot reload endpoint: %w", err)
+			}
+			var databases []*hotreloadpb.Database
 			dbAddresses.Range(func(key string, value string) bool {
-				fileContents += fmt.Sprintf("\ndatabase.%s.url=%s", key, value)
+				databases = append(databases, &hotreloadpb.Database{
+					Name:    key,
+					Address: value,
+				})
 				return true
 			})
-			err = os.WriteFile(file, []byte(fileContents), 0660) // #nosec
+			_, err := hotReloadClient.RunnerInfo(ctx, connect.NewRequest(&hotreloadpb.RunnerInfoRequest{
+				Deployment: s.config.Deployment.String(),
+				Address:    s.proxyBindAddress.String(),
+				Databases:  databases,
+			}))
 			if err != nil {
-				logger.Errorf(err, "could not create FTL dev Config")
+				return fmt.Errorf("failed to send runner info: %w", err)
 			}
 		}
+		client := rpc.Dial(ftlv1connect.NewVerbServiceClient, ep, log.Error)
 		err = rpc.Wait(ctx, backoff.Backoff{}, time.Minute, client)
+		dep = &deployment{
+			ctx:      ctx,
+			key:      key,
+			cmd:      optional.None[exec.Cmd](),
+			endpoint: ep,
+			client:   client,
+		}
 		if err != nil {
 			observability.Deployment.Failure(ctx, optional.Some(key.String()))
 			return fmt.Errorf("failed to ping dev endpoint: %w", err)
@@ -510,18 +525,19 @@ func (s *Service) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 		http.Error(w, "no deployment", http.StatusNotFound)
 		return
 	}
-	proxy := httputil.NewSingleHostReverseProxy(deployment.endpoint)
-	proxy.ServeHTTP(w, r)
+	deployment.reverseProxy.ServeHTTP(w, r)
 
 }
 
 func (s *Service) makeDeployment(ctx context.Context, key key.Deployment, plugin *plugin.Plugin[ftlv1connect.VerbServiceClient, ftlv1.PingRequest, ftlv1.PingResponse, *ftlv1.PingResponse]) *deployment {
+	proxy := httputil.NewSingleHostReverseProxy(plugin.Endpoint)
 	return &deployment{
-		ctx:      ctx,
-		key:      key,
-		cmd:      optional.Ptr(plugin.Cmd),
-		endpoint: plugin.Endpoint,
-		client:   plugin.Client,
+		ctx:          ctx,
+		key:          key,
+		cmd:          optional.Ptr(plugin.Cmd),
+		endpoint:     plugin.Endpoint.String(),
+		client:       plugin.Client,
+		reverseProxy: proxy,
 	}
 }
 
diff --git a/frontend/console/src/protos/xyz/block/ftl/hotreload/v1/hotreload_connect.ts b/frontend/console/src/protos/xyz/block/ftl/hotreload/v1/hotreload_connect.ts
index 33142f7b26..06f01b7c0e 100644
--- a/frontend/console/src/protos/xyz/block/ftl/hotreload/v1/hotreload_connect.ts
+++ b/frontend/console/src/protos/xyz/block/ftl/hotreload/v1/hotreload_connect.ts
@@ -5,7 +5,7 @@
 
 import { PingRequest, PingResponse } from "../../v1/ftl_pb.js";
 import { MethodIdempotency, MethodKind } from "@bufbuild/protobuf";
-import { ReloadRequest, ReloadResponse, WatchRequest, WatchResponse } from "./hotreload_pb.js";
+import { ReloadRequest, ReloadResponse, RunnerInfoRequest, RunnerInfoResponse, WatchRequest, WatchResponse } from "./hotreload_pb.js";
 
 /**
  * HotReloadService is for communication between a language plugin a language runtime that can perform a hot reload
@@ -51,6 +51,17 @@ export const HotReloadService = {
       O: WatchResponse,
       kind: MethodKind.ServerStreaming,
     },
+    /**
+     * Invoked by the runner to provide runner information to the plugin.
+     *
+     * @generated from rpc xyz.block.ftl.hotreload.v1.HotReloadService.RunnerInfo
+     */
+    runnerInfo: {
+      name: "RunnerInfo",
+      I: RunnerInfoRequest,
+      O: RunnerInfoResponse,
+      kind: MethodKind.Unary,
+    },
   }
 } as const;
 
diff --git a/frontend/console/src/protos/xyz/block/ftl/hotreload/v1/hotreload_pb.ts b/frontend/console/src/protos/xyz/block/ftl/hotreload/v1/hotreload_pb.ts
index 4414faa340..d3444022d4 100644
--- a/frontend/console/src/protos/xyz/block/ftl/hotreload/v1/hotreload_pb.ts
+++ b/frontend/console/src/protos/xyz/block/ftl/hotreload/v1/hotreload_pb.ts
@@ -183,6 +183,129 @@ export class WatchResponse extends Message<WatchResponse> {
   }
 }
 
+/**
+ * @generated from message xyz.block.ftl.hotreload.v1.RunnerInfoRequest
+ */
+export class RunnerInfoRequest extends Message<RunnerInfoRequest> {
+  /**
+   * @generated from field: string address = 1;
+   */
+  address = "";
+
+  /**
+   * @generated from field: string deployment = 2;
+   */
+  deployment = "";
+
+  /**
+   * @generated from field: repeated xyz.block.ftl.hotreload.v1.Database databases = 3;
+   */
+  databases: Database[] = [];
+
+  constructor(data?: PartialMessage<RunnerInfoRequest>) {
+    super();
+    proto3.util.initPartial(data, this);
+  }
+
+  static readonly runtime: typeof proto3 = proto3;
+  static readonly typeName = "xyz.block.ftl.hotreload.v1.RunnerInfoRequest";
+  static readonly fields: FieldList = proto3.util.newFieldList(() => [
+    { no: 1, name: "address", kind: "scalar", T: 9 /* ScalarType.STRING */ },
+    { no: 2, name: "deployment", kind: "scalar", T: 9 /* ScalarType.STRING */ },
+    { no: 3, name: "databases", kind: "message", T: Database, repeated: true },
+  ]);
+
+  static fromBinary(bytes: Uint8Array, options?: Partial<BinaryReadOptions>): RunnerInfoRequest {
+    return new RunnerInfoRequest().fromBinary(bytes, options);
+  }
+
+  static fromJson(jsonValue: JsonValue, options?: Partial<JsonReadOptions>): RunnerInfoRequest {
+    return new RunnerInfoRequest().fromJson(jsonValue, options);
+  }
+
+  static fromJsonString(jsonString: string, options?: Partial<JsonReadOptions>): RunnerInfoRequest {
+    return new RunnerInfoRequest().fromJsonString(jsonString, options);
+  }
+
+  static equals(a: RunnerInfoRequest | PlainMessage<RunnerInfoRequest> | undefined, b: RunnerInfoRequest | PlainMessage<RunnerInfoRequest> | undefined): boolean {
+    return proto3.util.equals(RunnerInfoRequest, a, b);
+  }
+}
+
+/**
+ * @generated from message xyz.block.ftl.hotreload.v1.Database
+ */
+export class Database extends Message<Database> {
+  /**
+   * @generated from field: string name = 1;
+   */
+  name = "";
+
+  /**
+   * @generated from field: string address = 2;
+   */
+  address = "";
+
+  constructor(data?: PartialMessage<Database>) {
+    super();
+    proto3.util.initPartial(data, this);
+  }
+
+  static readonly runtime: typeof proto3 = proto3;
+  static readonly typeName = "xyz.block.ftl.hotreload.v1.Database";
+  static readonly fields: FieldList = proto3.util.newFieldList(() => [
+    { no: 1, name: "name", kind: "scalar", T: 9 /* ScalarType.STRING */ },
+    { no: 2, name: "address", kind: "scalar", T: 9 /* ScalarType.STRING */ },
+  ]);
+
+  static fromBinary(bytes: Uint8Array, options?: Partial<BinaryReadOptions>): Database {
+    return new Database().fromBinary(bytes, options);
+  }
+
+  static fromJson(jsonValue: JsonValue, options?: Partial<JsonReadOptions>): Database {
+    return new Database().fromJson(jsonValue, options);
+  }
+
+  static fromJsonString(jsonString: string, options?: Partial<JsonReadOptions>): Database {
+    return new Database().fromJsonString(jsonString, options);
+  }
+
+  static equals(a: Database | PlainMessage<Database> | undefined, b: Database | PlainMessage<Database> | undefined): boolean {
+    return proto3.util.equals(Database, a, b);
+  }
+}
+
+/**
+ * @generated from message xyz.block.ftl.hotreload.v1.RunnerInfoResponse
+ */
+export class RunnerInfoResponse extends Message<RunnerInfoResponse> {
+  constructor(data?: PartialMessage<RunnerInfoResponse>) {
+    super();
+    proto3.util.initPartial(data, this);
+  }
+
+  static readonly runtime: typeof proto3 = proto3;
+  static readonly typeName = "xyz.block.ftl.hotreload.v1.RunnerInfoResponse";
+  static readonly fields: FieldList = proto3.util.newFieldList(() => [
+  ]);
+
+  static fromBinary(bytes: Uint8Array, options?: Partial<BinaryReadOptions>): RunnerInfoResponse {
+    return new RunnerInfoResponse().fromBinary(bytes, options);
+  }
+
+  static fromJson(jsonValue: JsonValue, options?: Partial<JsonReadOptions>): RunnerInfoResponse {
+    return new RunnerInfoResponse().fromJson(jsonValue, options);
+  }
+
+  static fromJsonString(jsonString: string, options?: Partial<JsonReadOptions>): RunnerInfoResponse {
+    return new RunnerInfoResponse().fromJsonString(jsonString, options);
+  }
+
+  static equals(a: RunnerInfoResponse | PlainMessage<RunnerInfoResponse> | undefined, b: RunnerInfoResponse | PlainMessage<RunnerInfoResponse> | undefined): boolean {
+    return proto3.util.equals(RunnerInfoResponse, a, b);
+  }
+}
+
 /**
  * @generated from message xyz.block.ftl.hotreload.v1.ReloadNotRequired
  */
diff --git a/frontend/console/src/protos/xyz/block/ftl/language/v1/language_pb.ts b/frontend/console/src/protos/xyz/block/ftl/language/v1/language_pb.ts
index 66d2df2701..d9ee407631 100644
--- a/frontend/console/src/protos/xyz/block/ftl/language/v1/language_pb.ts
+++ b/frontend/console/src/protos/xyz/block/ftl/language/v1/language_pb.ts
@@ -1170,11 +1170,11 @@ export class BuildSuccess extends Message<BuildSuccess> {
   debugPort?: number;
 
   /**
-   * Dev mode runner info file, this file is used to allow the runner to communicate provisioner info back to the plugin
+   * Dev mode hot reload endpoint, this is used to allow the runner to communicate info back to the running process
    *
-   * @generated from field: optional string dev_runner_info_file = 9;
+   * @generated from field: optional string dev_hot_reload_endpoint = 9;
    */
-  devRunnerInfoFile?: string;
+  devHotReloadEndpoint?: string;
 
   constructor(data?: PartialMessage<BuildSuccess>) {
     super();
@@ -1192,7 +1192,7 @@ export class BuildSuccess extends Message<BuildSuccess> {
     { no: 6, name: "errors", kind: "message", T: ErrorList },
     { no: 7, name: "dev_endpoint", kind: "scalar", T: 9 /* ScalarType.STRING */, opt: true },
     { no: 8, name: "debug_port", kind: "scalar", T: 5 /* ScalarType.INT32 */, opt: true },
-    { no: 9, name: "dev_runner_info_file", kind: "scalar", T: 9 /* ScalarType.STRING */, opt: true },
+    { no: 9, name: "dev_hot_reload_endpoint", kind: "scalar", T: 9 /* ScalarType.STRING */, opt: true },
   ]);
 
   static fromBinary(bytes: Uint8Array, options?: Partial<BinaryReadOptions>): BuildSuccess {
diff --git a/internal/buildengine/build.go b/internal/buildengine/build.go
index e050a82e26..47ebf44711 100644
--- a/internal/buildengine/build.go
+++ b/internal/buildengine/build.go
@@ -3,7 +3,6 @@ package buildengine
 import (
 	"context"
 	"fmt"
-	"net/url"
 	"os"
 	"path/filepath"
 	"time"
@@ -93,10 +92,7 @@ func handleBuildResult(ctx context.Context, projectConfig projectconfig.Config,
 	}
 	if endpoint, ok := result.DevEndpoint.Get(); ok {
 		if devModeEndpoints != nil {
-			parsed, err := url.Parse(endpoint)
-			if err == nil {
-				devModeEndpoints <- dev.LocalEndpoint{Module: config.Module, Endpoint: *parsed, DebugPort: result.DebugPort, Language: config.Language, RunnerInfoFile: result.DevRunnerInfoFile}
-			}
+			devModeEndpoints <- dev.LocalEndpoint{Module: config.Module, Endpoint: endpoint, DebugPort: result.DebugPort, Language: config.Language, HotReloadEndpoint: result.HotReloadEndpoint.Default("")}
 		}
 	}
 	return result.Schema, result.Deploy, nil
diff --git a/internal/buildengine/languageplugin/plugin.go b/internal/buildengine/languageplugin/plugin.go
index 25801244fe..748ed0a172 100644
--- a/internal/buildengine/languageplugin/plugin.go
+++ b/internal/buildengine/languageplugin/plugin.go
@@ -41,7 +41,7 @@ type BuildResult struct {
 	DevEndpoint optional.Option[string]
 
 	// File that the runner can use to pass info into the hot reload endpoint
-	DevRunnerInfoFile optional.Option[string]
+	HotReloadEndpoint optional.Option[string]
 
 	DebugPort int
 }
@@ -581,7 +581,7 @@ func buildResultFromProto(result either.Either[*langpb.BuildResponse_BuildSucces
 			Deploy:            buildSuccess.Deploy,
 			StartTime:         startTime,
 			DevEndpoint:       optional.Ptr(buildSuccess.DevEndpoint),
-			DevRunnerInfoFile: optional.Ptr(buildSuccess.DevRunnerInfoFile),
+			HotReloadEndpoint: optional.Ptr(buildSuccess.DevHotReloadEndpoint),
 			DebugPort:         port,
 		}, nil
 	case either.Right[*langpb.BuildResponse_BuildSuccess, *langpb.BuildResponse_BuildFailure]:
diff --git a/internal/dev/devendpoint.go b/internal/dev/devendpoint.go
index ec7f7c2877..6d3906af3b 100644
--- a/internal/dev/devendpoint.go
+++ b/internal/dev/devendpoint.go
@@ -1,15 +1,9 @@
 package dev
 
-import (
-	"net/url"
-
-	"github.com/alecthomas/types/optional"
-)
-
 type LocalEndpoint struct {
-	Module         string
-	Endpoint       url.URL
-	DebugPort      int
-	Language       string
-	RunnerInfoFile optional.Option[string]
+	Module            string
+	Endpoint          string
+	DebugPort         int
+	Language          string
+	HotReloadEndpoint string
 }
diff --git a/jvm-runtime/ftl-runtime/common/deployment/src/main/java/xyz/block/ftl/deployment/HotReloadHandler.java b/jvm-runtime/ftl-runtime/common/deployment/src/main/java/xyz/block/ftl/deployment/HotReloadHandler.java
index d2e209f25d..c8257e8459 100644
--- a/jvm-runtime/ftl-runtime/common/deployment/src/main/java/xyz/block/ftl/deployment/HotReloadHandler.java
+++ b/jvm-runtime/ftl-runtime/common/deployment/src/main/java/xyz/block/ftl/deployment/HotReloadHandler.java
@@ -5,7 +5,9 @@
 import java.nio.file.Path;
 import java.util.ArrayList;
 import java.util.Collections;
+import java.util.HashMap;
 import java.util.List;
+import java.util.Map;
 import java.util.Set;
 import java.util.concurrent.ConcurrentHashMap;
 import java.util.concurrent.atomic.AtomicBoolean;
@@ -17,12 +19,16 @@
 import io.grpc.stub.StreamObserver;
 import io.quarkus.bootstrap.classloading.QuarkusClassLoader;
 import io.quarkus.deployment.dev.RuntimeUpdatesProcessor;
+import xyz.block.ftl.hotreload.RunnerInfo;
+import xyz.block.ftl.hotreload.RunnerNotification;
 import xyz.block.ftl.hotreload.v1.HotReloadServiceGrpc;
 import xyz.block.ftl.hotreload.v1.ReloadFailed;
 import xyz.block.ftl.hotreload.v1.ReloadNotRequired;
 import xyz.block.ftl.hotreload.v1.ReloadRequest;
 import xyz.block.ftl.hotreload.v1.ReloadResponse;
 import xyz.block.ftl.hotreload.v1.ReloadSuccess;
+import xyz.block.ftl.hotreload.v1.RunnerInfoRequest;
+import xyz.block.ftl.hotreload.v1.RunnerInfoResponse;
 import xyz.block.ftl.hotreload.v1.WatchRequest;
 import xyz.block.ftl.hotreload.v1.WatchResponse;
 import xyz.block.ftl.language.v1.Error;
@@ -93,18 +99,18 @@ public void reload(ReloadRequest request, StreamObserver<ReloadResponse> respons
             try {
                 doScan(request.getForce());
             } finally {
-                synchronized (HotReloadHandler.class) {
+                synchronized (HotReloadHandler.this) {
                     explicitlyReloading = false;
-                    HotReloadHandler.class.notifyAll();
+                    HotReloadHandler.this.notifyAll();
                 }
             }
         }, "FTL Restart Thread");
-        synchronized (HotReloadHandler.class) {
+        synchronized (HotReloadHandler.this) {
             explicitlyReloading = true;
             t.start();
             while (explicitlyReloading) {
                 try {
-                    HotReloadHandler.class.wait();
+                    HotReloadHandler.this.wait();
                 } catch (InterruptedException e) {
                     Thread.currentThread().interrupt();
                 }
@@ -170,6 +176,18 @@ public void watch(WatchRequest request, StreamObserver<WatchResponse> responseOb
         watches.add(responseObserver);
     }
 
+    @Override
+    public void runnerInfo(RunnerInfoRequest request, StreamObserver<RunnerInfoResponse> responseObserver) {
+        Map<String, String> databases = new HashMap<>();
+        for (var db : request.getDatabasesList()) {
+            databases.put(db.getName(), db.getAddress());
+        }
+        RunnerNotification
+                .setRunnerInfo(new RunnerInfo(request.getAddress(), request.getDeployment(), databases));
+        responseObserver.onNext(RunnerInfoResponse.newBuilder().build());
+        responseObserver.onCompleted();
+    }
+
     public static void start() {
         if (INSTANCE != null) {
             return;
@@ -187,7 +205,7 @@ private void init() {
         gatherMigrations();
         int port = Integer.getInteger("ftl.language.port");
         server = ServerBuilder.forPort(port)
-                .addService(new HotReloadHandler())
+                .addService(this)
                 .build();
         try {
             LOG.info("Starting Hot Reload gRPC server on port " + port);
diff --git a/jvm-runtime/ftl-runtime/common/deployment/src/main/java/xyz/block/ftl/deployment/ModuleProcessor.java b/jvm-runtime/ftl-runtime/common/deployment/src/main/java/xyz/block/ftl/deployment/ModuleProcessor.java
index 27eec24f14..c964dd69a5 100644
--- a/jvm-runtime/ftl-runtime/common/deployment/src/main/java/xyz/block/ftl/deployment/ModuleProcessor.java
+++ b/jvm-runtime/ftl-runtime/common/deployment/src/main/java/xyz/block/ftl/deployment/ModuleProcessor.java
@@ -63,8 +63,6 @@ public class ModuleProcessor {
 
     private static final String SCHEMA_OUT = "schema.pb";
     private static final String ERRORS_OUT = "errors.pb";
-    public static final String DEV_MODE_RUNNER_INFO_FILE = "FTL_RUNNER_INFO";
-
     /**
      * Persistent schema hash, used to detect runner restarts in dev mode.
      */
@@ -195,16 +193,7 @@ public void accept(xyz.block.ftl.schema.v1.Module module, ErrorList errorList) {
             var hash = HashUtil.sha256(schBytes);
             if (!Objects.equals(hash, schemaHash)) {
                 schemaHash = hash;
-                String runnerInfo = System.getenv(DEV_MODE_RUNNER_INFO_FILE);
-                if (runnerInfo != null) {
-                    Path path = Path.of(runnerInfo);
-                    // Delete the runner info file if it already exists
-                    Files.deleteIfExists(path);
-                    // This method tells the runtime not to actually start until we have updated runner details
-                    systemPropertyBuildItemBuildProducer
-                            .produce(new SystemPropertyBuildItem(FTLRecorder.DEV_MODE_RUNNER_INFO_PATH, path.toString()));
-                    recorder.handleDevModeRunnerStart(shutdownContextBuildItem);
-                }
+                recorder.handleDevModeRunnerStart(shutdownContextBuildItem);
             }
         } else {
             output = outputTargetBuildItem.getOutputDirectory().resolve("launch");
diff --git a/jvm-runtime/ftl-runtime/common/hotreload/pom.xml b/jvm-runtime/ftl-runtime/common/hotreload/pom.xml
new file mode 100644
index 0000000000..bf28b9b7c2
--- /dev/null
+++ b/jvm-runtime/ftl-runtime/common/hotreload/pom.xml
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <parent>
+        <groupId>xyz.block.ftl</groupId>
+        <artifactId>ftl-jvm-runtime-parent</artifactId>
+        <version>1.0-SNAPSHOT</version>
+    </parent>
+    <artifactId>ftl-jvm-hot-reload</artifactId>
+    <name>FTL Java Runtime - Hot Reload SPI</name>
+
+</project>
diff --git a/jvm-runtime/ftl-runtime/common/hotreload/src/main/java/xyz/block/ftl/hotreload/RunnerInfo.java b/jvm-runtime/ftl-runtime/common/hotreload/src/main/java/xyz/block/ftl/hotreload/RunnerInfo.java
new file mode 100644
index 0000000000..dfaa55b63f
--- /dev/null
+++ b/jvm-runtime/ftl-runtime/common/hotreload/src/main/java/xyz/block/ftl/hotreload/RunnerInfo.java
@@ -0,0 +1,7 @@
+package xyz.block.ftl.hotreload;
+
+import java.util.Map;
+
+public record RunnerInfo(String address, String deployment, Map<String, String> databases) {
+
+}
diff --git a/jvm-runtime/ftl-runtime/common/hotreload/src/main/java/xyz/block/ftl/hotreload/RunnerNotification.java b/jvm-runtime/ftl-runtime/common/hotreload/src/main/java/xyz/block/ftl/hotreload/RunnerNotification.java
new file mode 100644
index 0000000000..d5ee059315
--- /dev/null
+++ b/jvm-runtime/ftl-runtime/common/hotreload/src/main/java/xyz/block/ftl/hotreload/RunnerNotification.java
@@ -0,0 +1,31 @@
+package xyz.block.ftl.hotreload;
+
+import java.util.function.Consumer;
+
+public class RunnerNotification {
+
+    private static volatile Consumer<RunnerInfo> callback;
+    private static volatile RunnerInfo info;
+
+    public static synchronized void setCallback(Consumer<RunnerInfo> callback) {
+        if (RunnerNotification.callback != null) {
+            throw new IllegalStateException("Callback already set");
+        }
+        if (info != null) {
+            callback.accept(info);
+            info = null;
+        } else {
+            RunnerNotification.callback = callback;
+        }
+    }
+
+    public static synchronized void setRunnerInfo(RunnerInfo info) {
+        if (callback != null) {
+            callback.accept(info);
+            callback = null;
+        } else {
+            RunnerNotification.info = info;
+        }
+    }
+
+}
diff --git a/jvm-runtime/ftl-runtime/common/pom.xml b/jvm-runtime/ftl-runtime/common/pom.xml
index 3aa2e02a32..74a2a85925 100644
--- a/jvm-runtime/ftl-runtime/common/pom.xml
+++ b/jvm-runtime/ftl-runtime/common/pom.xml
@@ -18,5 +18,6 @@
         <module>runtime</module>
         <module>bom</module>
         <module>build-parent</module>
+        <module>hotreload</module>
     </modules>
 </project>
diff --git a/jvm-runtime/ftl-runtime/common/runtime/pom.xml b/jvm-runtime/ftl-runtime/common/runtime/pom.xml
index 14f4eb9f14..133ed0e98e 100644
--- a/jvm-runtime/ftl-runtime/common/runtime/pom.xml
+++ b/jvm-runtime/ftl-runtime/common/runtime/pom.xml
@@ -12,6 +12,10 @@
     <name>FTL Java Runtime - Runtime</name>
 
     <dependencies>
+        <dependency>
+            <groupId>xyz.block.ftl</groupId>
+            <artifactId>ftl-jvm-hot-reload</artifactId>
+        </dependency>
         <dependency>
             <groupId>io.quarkus</groupId>
             <artifactId>quarkus-arc</artifactId>
@@ -100,8 +104,8 @@
                             <goal>extension-descriptor</goal>
                         </goals>
                         <configuration>
-                            <deployment>${project.groupId}:${project.artifactId}-deployment:${project.version}
-                            </deployment>
+                            <deployment>${project.groupId}:${project.artifactId}-deployment:${project.version}</deployment>
+                            <parentFirstArtifacts>xyz.block.ftl:ftl-jvm-hot-reload</parentFirstArtifacts>
                         </configuration>
                     </execution>
                 </executions>
diff --git a/jvm-runtime/ftl-runtime/common/runtime/src/main/java/xyz/block/ftl/runtime/DevModeRunnerDetails.java b/jvm-runtime/ftl-runtime/common/runtime/src/main/java/xyz/block/ftl/runtime/DevModeRunnerDetails.java
index 36fc9235b4..6a31e86510 100644
--- a/jvm-runtime/ftl-runtime/common/runtime/src/main/java/xyz/block/ftl/runtime/DevModeRunnerDetails.java
+++ b/jvm-runtime/ftl-runtime/common/runtime/src/main/java/xyz/block/ftl/runtime/DevModeRunnerDetails.java
@@ -1,69 +1,32 @@
 package xyz.block.ftl.runtime;
 
-import java.io.IOException;
-import java.io.InputStream;
-import java.nio.file.Files;
-import java.nio.file.Path;
-import java.util.HashMap;
 import java.util.Map;
 import java.util.Optional;
-import java.util.Properties;
-import java.util.regex.Matcher;
-import java.util.regex.Pattern;
 
 import xyz.block.ftl.deployment.v1.GetDeploymentContextResponse;
+import xyz.block.ftl.hotreload.RunnerInfo;
+import xyz.block.ftl.hotreload.RunnerNotification;
 
 public class DevModeRunnerDetails implements RunnerDetails {
 
-    private final Path path;
     private volatile Map<String, String> databases;
     private volatile String proxyAddress;
     private volatile String deployment;
     private volatile boolean closed;
-    private static final Pattern dbNames = Pattern.compile("database\\.([a-zA-Z0-9]+).url");
     private volatile boolean loaded = false;
 
-    public DevModeRunnerDetails(Path path) {
-        this.path = path;
-        startWatchThread();
+    public DevModeRunnerDetails() {
+        RunnerNotification.setCallback(this::setRunnerInfo);
     }
 
-    void startWatchThread() {
-        Thread watchThread = new Thread(() -> {
-            while (!closed) {
-                try {
-                    Thread.sleep(100);
-                } catch (InterruptedException e) {
-                    throw new RuntimeException(e);
-                }
-                if (Files.exists(path)) {
-                    Properties p = new Properties();
-                    try (InputStream stream = Files.newInputStream(path)) {
-                        p.load(stream);
-                        synchronized (this) {
-                            proxyAddress = p.getProperty("proxy.bind.address");
-                            deployment = p.getProperty("deployment");
-                            var dbs = new HashMap<String, String>();
-                            for (var addr : p.stringPropertyNames()) {
-                                Matcher m = dbNames.matcher(addr);
-                                if (m.matches()) {
-                                    dbs.put(m.group(1), p.getProperty(addr));
-                                }
-                            }
-                            databases = dbs;
-                            loaded = true;
-                            notifyAll();
-                            return;
-                        }
-
-                    } catch (IOException e) {
-                        throw new RuntimeException(e);
-                    }
-                }
-            }
-        });
-        watchThread.setDaemon(true);
-        watchThread.start();
+    private void setRunnerInfo(RunnerInfo runnerInfo) {
+        synchronized (this) {
+            proxyAddress = runnerInfo.address();
+            deployment = runnerInfo.deployment();
+            databases = runnerInfo.databases();
+            loaded = true;
+            notifyAll();
+        }
     }
 
     @Override
diff --git a/jvm-runtime/ftl-runtime/common/runtime/src/main/java/xyz/block/ftl/runtime/FTLController.java b/jvm-runtime/ftl-runtime/common/runtime/src/main/java/xyz/block/ftl/runtime/FTLController.java
index 485272af46..cae787df34 100644
--- a/jvm-runtime/ftl-runtime/common/runtime/src/main/java/xyz/block/ftl/runtime/FTLController.java
+++ b/jvm-runtime/ftl-runtime/common/runtime/src/main/java/xyz/block/ftl/runtime/FTLController.java
@@ -1,6 +1,5 @@
 package xyz.block.ftl.runtime;
 
-import java.nio.file.Path;
 import java.time.Duration;
 import java.util.List;
 import java.util.Map;
@@ -94,7 +93,7 @@ public void readDevModeRunnerInfo() {
                 runnerConnection = null;
             }
             runnerDetails.close();
-            runnerDetails = new DevModeRunnerDetails(Path.of(System.getProperty(FTLRecorder.DEV_MODE_RUNNER_INFO_PATH)));
+            runnerDetails = new DevModeRunnerDetails();
             haveRunnerInfo = true;
             this.notifyAll();
         }
diff --git a/jvm-runtime/ftl-runtime/common/runtime/src/main/java/xyz/block/ftl/runtime/FTLRecorder.java b/jvm-runtime/ftl-runtime/common/runtime/src/main/java/xyz/block/ftl/runtime/FTLRecorder.java
index a4db234ff3..07b38fd546 100644
--- a/jvm-runtime/ftl-runtime/common/runtime/src/main/java/xyz/block/ftl/runtime/FTLRecorder.java
+++ b/jvm-runtime/ftl-runtime/common/runtime/src/main/java/xyz/block/ftl/runtime/FTLRecorder.java
@@ -21,7 +21,6 @@
 public class FTLRecorder {
 
     public static final String X_FTL_VERB = "X-ftl-verb";
-    public static final String DEV_MODE_RUNNER_INFO_PATH = "ftl.dev.runner.info";
 
     public void registerVerb(String module, String verbName, String methodName, List<Class<?>> parameterTypes,
             Class<?> verbHandlerClass, List<VerbRegistry.ParameterSupplier> paramMappers,
diff --git a/jvm-runtime/ftl-runtime/pom.xml b/jvm-runtime/ftl-runtime/pom.xml
index c9e2333377..61426032c4 100644
--- a/jvm-runtime/ftl-runtime/pom.xml
+++ b/jvm-runtime/ftl-runtime/pom.xml
@@ -73,6 +73,11 @@
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>
+            <dependency>
+                <groupId>xyz.block.ftl</groupId>
+                <artifactId>ftl-jvm-hot-reload</artifactId>
+                <version>${project.version}</version>
+            </dependency>
             <dependency>
                 <groupId>xyz.block.ftl</groupId>
                 <artifactId>ftl-jvm-runtime</artifactId>
diff --git a/jvm-runtime/plugin/common/jvmcommon.go b/jvm-runtime/plugin/common/jvmcommon.go
index b8fe5ba202..fc0c638b8b 100644
--- a/jvm-runtime/plugin/common/jvmcommon.go
+++ b/jvm-runtime/plugin/common/jvmcommon.go
@@ -250,6 +250,7 @@ func (s *Service) runDevMode(ctx context.Context, req *connect.Request[langpb.Bu
 		err := s.runQuarkusDev(ctx, req, stream, first)
 		first = false
 		if err != nil {
+			log.FromContext(ctx).Errorf(err, "Dev mode process exited")
 			return err
 		}
 		if !waitForFileChanges(ctx, fileEvents) {
@@ -345,10 +346,8 @@ func (s *Service) runQuarkusDev(ctx context.Context, req *connect.Request[langpb
 	}
 	errorFile := filepath.Join(buildCtx.Config.DeployDir, ErrorFile)
 	schemaFile := filepath.Join(buildCtx.Config.DeployDir, SchemaFile)
-	runnerInfoFile := filepath.Join(buildCtx.Config.Dir, ".ftl-runner-info")
 	os.Remove(errorFile)
 	os.Remove(schemaFile)
-	os.Remove(runnerInfoFile)
 	errorHash := sha256.SHA256{}
 	schemaHash := sha256.SHA256{}
 	migrationHash := watch.FileHashes{}
@@ -369,11 +368,11 @@ func (s *Service) runQuarkusDev(ctx context.Context, req *connect.Request[langpb
 	if err == nil {
 		devModeBuild = fmt.Sprintf("%s -Ddebug=%d", devModeBuild, debugPort.Port)
 	}
-	protoPort, err := plugin.AllocatePort()
+	hotReloadPort, err := plugin.AllocatePort()
 	if err != nil {
 		return fmt.Errorf("could not allocate port: %w", err)
 	}
-	devModeBuild = fmt.Sprintf("%s -Dftl.language.port=%d", devModeBuild, protoPort.Port)
+	devModeBuild = fmt.Sprintf("%s -Dftl.language.port=%d", devModeBuild, hotReloadPort.Port)
 
 	if os.Getenv("FTL_SUSPEND") == "true" {
 		devModeBuild += " -Dsuspend "
@@ -381,8 +380,7 @@ func (s *Service) runQuarkusDev(ctx context.Context, req *connect.Request[langpb
 	go func() {
 		logger.Infof("Using dev mode build command '%s'", devModeBuild)
 		command := exec.Command(ctx, log.Debug, buildCtx.Config.Dir, "bash", "-c", devModeBuild)
-		command.Env = append(command.Env, fmt.Sprintf("FTL_BIND=%s", bind))
-		command.Env = append(command.Env, fmt.Sprintf("FTL_RUNNER_INFO=%s", runnerInfoFile))
+		command.Env = append(command.Env, fmt.Sprintf("FTL_BIND=%s", bind), "MAVEN_OPTS=-Xmx1024m")
 		command.Stdout = os.Stdout
 		command.Stderr = os.Stderr
 		err = command.Run()
@@ -396,7 +394,8 @@ func (s *Service) runQuarkusDev(ctx context.Context, req *connect.Request[langpb
 
 	forceUpdate := false
 	// Wait for the plugin to start.
-	client := rpc.Dial(hotreloadpbconnect.NewHotReloadServiceClient, fmt.Sprintf("http://localhost:%d", protoPort.Port), log.Trace)
+	hotReloadEndpoint := fmt.Sprintf("http://localhost:%d", hotReloadPort.Port)
+	client := rpc.Dial(hotreloadpbconnect.NewHotReloadServiceClient, hotReloadEndpoint, log.Trace)
 	err = rpc.Wait(ctx, backoff.Backoff{}, time.Minute, client)
 	if err != nil {
 		logger.Infof("Dev mode process failed to start")
@@ -430,7 +429,7 @@ func (s *Service) runQuarkusDev(ctx context.Context, req *connect.Request[langpb
 			if err != nil {
 				return fmt.Errorf("failed to invoke hot reload for build context update %w", err)
 			}
-			resp := s.toBuildResponse(result.Msg, &bc.buildCtx, false, devModeEndpoint, debugPort32, runnerInfoFile)
+			resp := s.toBuildResponse(result.Msg, &bc.buildCtx, false, devModeEndpoint, debugPort32, hotReloadEndpoint)
 			if resp != nil {
 				err = stream.Send(resp)
 			}
@@ -512,13 +511,13 @@ func (s *Service) runQuarkusDev(ctx context.Context, req *connect.Request[langpb
 				err = stream.Send(&langpb.BuildResponse{
 					Event: &langpb.BuildResponse_BuildSuccess{
 						BuildSuccess: &langpb.BuildSuccess{
-							ContextId:          buildCtx.ID,
-							IsAutomaticRebuild: auto,
-							Module:             moduleProto,
-							DevEndpoint:        ptr(devModeEndpoint),
-							DevRunnerInfoFile:  &runnerInfoFile,
-							DebugPort:          &debugPort32,
-							Deploy:             []string{SchemaFile},
+							ContextId:            buildCtx.ID,
+							IsAutomaticRebuild:   auto,
+							Module:               moduleProto,
+							DevEndpoint:          ptr(devModeEndpoint),
+							DevHotReloadEndpoint: ptr(hotReloadEndpoint),
+							DebugPort:            &debugPort32,
+							Deploy:               []string{SchemaFile},
 						},
 					},
 				})
@@ -970,19 +969,19 @@ func (s *Service) writeGenericSchemaFiles(ctx context.Context, v *schema.Schema,
 	return nil
 }
 
-func (s *Service) toBuildResponse(result *hotreloadpb.ReloadResponse, bc *buildContext, auto bool, devEndpoint string, debugPort int32, devRunnerInfoFile string) (ret *langpb.BuildResponse) {
+func (s *Service) toBuildResponse(result *hotreloadpb.ReloadResponse, bc *buildContext, auto bool, devEndpoint string, debugPort int32, hotReloadAddress string) (ret *langpb.BuildResponse) {
 	ret = &langpb.BuildResponse{}
 	switch e := result.Event.(type) {
 	case *hotreloadpb.ReloadResponse_ReloadSuccess:
 		ret.Event = &langpb.BuildResponse_BuildSuccess{
 			BuildSuccess: &langpb.BuildSuccess{
-				ContextId:          bc.ID,
-				IsAutomaticRebuild: auto,
-				Module:             e.ReloadSuccess.Module,
-				Errors:             e.ReloadSuccess.Errors,
-				DevEndpoint:        &devEndpoint,
-				DebugPort:          &debugPort,
-				DevRunnerInfoFile:  &devRunnerInfoFile,
+				ContextId:            bc.ID,
+				IsAutomaticRebuild:   auto,
+				Module:               e.ReloadSuccess.Module,
+				Errors:               e.ReloadSuccess.Errors,
+				DevEndpoint:          &devEndpoint,
+				DebugPort:            &debugPort,
+				DevHotReloadEndpoint: &hotReloadAddress,
 			},
 		}
 
diff --git a/python-runtime/ftl/src/ftl/protos/xyz/block/ftl/hotreload/v1/hotreload_pb2.py b/python-runtime/ftl/src/ftl/protos/xyz/block/ftl/hotreload/v1/hotreload_pb2.py
index 6f1e1a3430..5220f45a7d 100644
--- a/python-runtime/ftl/src/ftl/protos/xyz/block/ftl/hotreload/v1/hotreload_pb2.py
+++ b/python-runtime/ftl/src/ftl/protos/xyz/block/ftl/hotreload/v1/hotreload_pb2.py
@@ -27,7 +27,7 @@
 from xyz.block.ftl.v1 import ftl_pb2 as xyz_dot_block_dot_ftl_dot_v1_dot_ftl__pb2
 
 
-DESCRIPTOR = _descriptor_pool.Default().AddSerializedFile(b'\n*xyz/block/ftl/hotreload/v1/hotreload.proto\x12\x1axyz.block.ftl.hotreload.v1\x1a(xyz/block/ftl/language/v1/language.proto\x1a$xyz/block/ftl/schema/v1/schema.proto\x1a\x1axyz/block/ftl/v1/ftl.proto\"%\n\rReloadRequest\x12\x14\n\x05\x66orce\x18\x01 \x01(\x08R\x05\x66orce\"\x9f\x02\n\x0eReloadResponse\x12_\n\x13reload_not_required\x18\x01 \x01(\x0b\x32-.xyz.block.ftl.hotreload.v1.ReloadNotRequiredH\x00R\x11reloadNotRequired\x12R\n\x0ereload_success\x18\x02 \x01(\x0b\x32).xyz.block.ftl.hotreload.v1.ReloadSuccessH\x00R\rreloadSuccess\x12O\n\rreload_failed\x18\x03 \x01(\x0b\x32(.xyz.block.ftl.hotreload.v1.ReloadFailedH\x00R\x0creloadFailedB\x07\n\x05\x65vent\"\x0e\n\x0cWatchRequest\"\xbd\x01\n\rWatchResponse\x12R\n\x0ereload_success\x18\x01 \x01(\x0b\x32).xyz.block.ftl.hotreload.v1.ReloadSuccessH\x00R\rreloadSuccess\x12O\n\rreload_failed\x18\x02 \x01(\x0b\x32(.xyz.block.ftl.hotreload.v1.ReloadFailedH\x00R\x0creloadFailedB\x07\n\x05\x65vent\"\x13\n\x11ReloadNotRequired\"\x86\x01\n\rReloadSuccess\x12\x37\n\x06module\x18\x01 \x01(\x0b\x32\x1f.xyz.block.ftl.schema.v1.ModuleR\x06module\x12<\n\x06\x65rrors\x18\x02 \x01(\x0b\x32$.xyz.block.ftl.language.v1.ErrorListR\x06\x65rrors\"L\n\x0cReloadFailed\x12<\n\x06\x65rrors\x18\x01 \x01(\x0b\x32$.xyz.block.ftl.language.v1.ErrorListR\x06\x65rrors2\x9f\x02\n\x10HotReloadService\x12J\n\x04Ping\x12\x1d.xyz.block.ftl.v1.PingRequest\x1a\x1e.xyz.block.ftl.v1.PingResponse\"\x03\x90\x02\x01\x12_\n\x06Reload\x12).xyz.block.ftl.hotreload.v1.ReloadRequest\x1a*.xyz.block.ftl.hotreload.v1.ReloadResponse\x12^\n\x05Watch\x12(.xyz.block.ftl.hotreload.v1.WatchRequest\x1a).xyz.block.ftl.hotreload.v1.WatchResponse0\x01\x42NP\x01ZJgithub.com/block/ftl/backend/protos/xyz/block/ftl/hotreload/v1;hotreloadpbb\x06proto3')
+DESCRIPTOR = _descriptor_pool.Default().AddSerializedFile(b'\n*xyz/block/ftl/hotreload/v1/hotreload.proto\x12\x1axyz.block.ftl.hotreload.v1\x1a(xyz/block/ftl/language/v1/language.proto\x1a$xyz/block/ftl/schema/v1/schema.proto\x1a\x1axyz/block/ftl/v1/ftl.proto\"%\n\rReloadRequest\x12\x14\n\x05\x66orce\x18\x01 \x01(\x08R\x05\x66orce\"\x9f\x02\n\x0eReloadResponse\x12_\n\x13reload_not_required\x18\x01 \x01(\x0b\x32-.xyz.block.ftl.hotreload.v1.ReloadNotRequiredH\x00R\x11reloadNotRequired\x12R\n\x0ereload_success\x18\x02 \x01(\x0b\x32).xyz.block.ftl.hotreload.v1.ReloadSuccessH\x00R\rreloadSuccess\x12O\n\rreload_failed\x18\x03 \x01(\x0b\x32(.xyz.block.ftl.hotreload.v1.ReloadFailedH\x00R\x0creloadFailedB\x07\n\x05\x65vent\"\x0e\n\x0cWatchRequest\"\xbd\x01\n\rWatchResponse\x12R\n\x0ereload_success\x18\x01 \x01(\x0b\x32).xyz.block.ftl.hotreload.v1.ReloadSuccessH\x00R\rreloadSuccess\x12O\n\rreload_failed\x18\x02 \x01(\x0b\x32(.xyz.block.ftl.hotreload.v1.ReloadFailedH\x00R\x0creloadFailedB\x07\n\x05\x65vent\"\x91\x01\n\x11RunnerInfoRequest\x12\x18\n\x07\x61\x64\x64ress\x18\x01 \x01(\tR\x07\x61\x64\x64ress\x12\x1e\n\ndeployment\x18\x02 \x01(\tR\ndeployment\x12\x42\n\tdatabases\x18\x03 \x03(\x0b\x32$.xyz.block.ftl.hotreload.v1.DatabaseR\tdatabases\"8\n\x08\x44\x61tabase\x12\x12\n\x04name\x18\x01 \x01(\tR\x04name\x12\x18\n\x07\x61\x64\x64ress\x18\x02 \x01(\tR\x07\x61\x64\x64ress\"\x14\n\x12RunnerInfoResponse\"\x13\n\x11ReloadNotRequired\"\x86\x01\n\rReloadSuccess\x12\x37\n\x06module\x18\x01 \x01(\x0b\x32\x1f.xyz.block.ftl.schema.v1.ModuleR\x06module\x12<\n\x06\x65rrors\x18\x02 \x01(\x0b\x32$.xyz.block.ftl.language.v1.ErrorListR\x06\x65rrors\"L\n\x0cReloadFailed\x12<\n\x06\x65rrors\x18\x01 \x01(\x0b\x32$.xyz.block.ftl.language.v1.ErrorListR\x06\x65rrors2\x8c\x03\n\x10HotReloadService\x12J\n\x04Ping\x12\x1d.xyz.block.ftl.v1.PingRequest\x1a\x1e.xyz.block.ftl.v1.PingResponse\"\x03\x90\x02\x01\x12_\n\x06Reload\x12).xyz.block.ftl.hotreload.v1.ReloadRequest\x1a*.xyz.block.ftl.hotreload.v1.ReloadResponse\x12^\n\x05Watch\x12(.xyz.block.ftl.hotreload.v1.WatchRequest\x1a).xyz.block.ftl.hotreload.v1.WatchResponse0\x01\x12k\n\nRunnerInfo\x12-.xyz.block.ftl.hotreload.v1.RunnerInfoRequest\x1a..xyz.block.ftl.hotreload.v1.RunnerInfoResponseBNP\x01ZJgithub.com/block/ftl/backend/protos/xyz/block/ftl/hotreload/v1;hotreloadpbb\x06proto3')
 
 _globals = globals()
 _builder.BuildMessageAndEnumDescriptors(DESCRIPTOR, _globals)
@@ -45,12 +45,18 @@
   _globals['_WATCHREQUEST']._serialized_end=525
   _globals['_WATCHRESPONSE']._serialized_start=528
   _globals['_WATCHRESPONSE']._serialized_end=717
-  _globals['_RELOADNOTREQUIRED']._serialized_start=719
-  _globals['_RELOADNOTREQUIRED']._serialized_end=738
-  _globals['_RELOADSUCCESS']._serialized_start=741
-  _globals['_RELOADSUCCESS']._serialized_end=875
-  _globals['_RELOADFAILED']._serialized_start=877
-  _globals['_RELOADFAILED']._serialized_end=953
-  _globals['_HOTRELOADSERVICE']._serialized_start=956
-  _globals['_HOTRELOADSERVICE']._serialized_end=1243
+  _globals['_RUNNERINFOREQUEST']._serialized_start=720
+  _globals['_RUNNERINFOREQUEST']._serialized_end=865
+  _globals['_DATABASE']._serialized_start=867
+  _globals['_DATABASE']._serialized_end=923
+  _globals['_RUNNERINFORESPONSE']._serialized_start=925
+  _globals['_RUNNERINFORESPONSE']._serialized_end=945
+  _globals['_RELOADNOTREQUIRED']._serialized_start=947
+  _globals['_RELOADNOTREQUIRED']._serialized_end=966
+  _globals['_RELOADSUCCESS']._serialized_start=969
+  _globals['_RELOADSUCCESS']._serialized_end=1103
+  _globals['_RELOADFAILED']._serialized_start=1105
+  _globals['_RELOADFAILED']._serialized_end=1181
+  _globals['_HOTRELOADSERVICE']._serialized_start=1184
+  _globals['_HOTRELOADSERVICE']._serialized_end=1580
 # @@protoc_insertion_point(module_scope)
diff --git a/python-runtime/ftl/src/ftl/protos/xyz/block/ftl/hotreload/v1/hotreload_pb2.pyi b/python-runtime/ftl/src/ftl/protos/xyz/block/ftl/hotreload/v1/hotreload_pb2.pyi
index 0f389ae504..85a63be648 100644
--- a/python-runtime/ftl/src/ftl/protos/xyz/block/ftl/hotreload/v1/hotreload_pb2.pyi
+++ b/python-runtime/ftl/src/ftl/protos/xyz/block/ftl/hotreload/v1/hotreload_pb2.pyi
@@ -1,9 +1,10 @@
 from xyz.block.ftl.language.v1 import language_pb2 as _language_pb2
 from xyz.block.ftl.schema.v1 import schema_pb2 as _schema_pb2
 from xyz.block.ftl.v1 import ftl_pb2 as _ftl_pb2
+from google.protobuf.internal import containers as _containers
 from google.protobuf import descriptor as _descriptor
 from google.protobuf import message as _message
-from typing import ClassVar as _ClassVar, Mapping as _Mapping, Optional as _Optional, Union as _Union
+from typing import ClassVar as _ClassVar, Iterable as _Iterable, Mapping as _Mapping, Optional as _Optional, Union as _Union
 
 DESCRIPTOR: _descriptor.FileDescriptor
 
@@ -35,6 +36,28 @@ class WatchResponse(_message.Message):
     reload_failed: ReloadFailed
     def __init__(self, reload_success: _Optional[_Union[ReloadSuccess, _Mapping]] = ..., reload_failed: _Optional[_Union[ReloadFailed, _Mapping]] = ...) -> None: ...
 
+class RunnerInfoRequest(_message.Message):
+    __slots__ = ("address", "deployment", "databases")
+    ADDRESS_FIELD_NUMBER: _ClassVar[int]
+    DEPLOYMENT_FIELD_NUMBER: _ClassVar[int]
+    DATABASES_FIELD_NUMBER: _ClassVar[int]
+    address: str
+    deployment: str
+    databases: _containers.RepeatedCompositeFieldContainer[Database]
+    def __init__(self, address: _Optional[str] = ..., deployment: _Optional[str] = ..., databases: _Optional[_Iterable[_Union[Database, _Mapping]]] = ...) -> None: ...
+
+class Database(_message.Message):
+    __slots__ = ("name", "address")
+    NAME_FIELD_NUMBER: _ClassVar[int]
+    ADDRESS_FIELD_NUMBER: _ClassVar[int]
+    name: str
+    address: str
+    def __init__(self, name: _Optional[str] = ..., address: _Optional[str] = ...) -> None: ...
+
+class RunnerInfoResponse(_message.Message):
+    __slots__ = ()
+    def __init__(self) -> None: ...
+
 class ReloadNotRequired(_message.Message):
     __slots__ = ()
     def __init__(self) -> None: ...
diff --git a/python-runtime/ftl/src/ftl/protos/xyz/block/ftl/language/v1/language_pb2.py b/python-runtime/ftl/src/ftl/protos/xyz/block/ftl/language/v1/language_pb2.py
index 78895592e7..57c2328990 100644
--- a/python-runtime/ftl/src/ftl/protos/xyz/block/ftl/language/v1/language_pb2.py
+++ b/python-runtime/ftl/src/ftl/protos/xyz/block/ftl/language/v1/language_pb2.py
@@ -27,7 +27,7 @@
 from xyz.block.ftl.v1 import ftl_pb2 as xyz_dot_block_dot_ftl_dot_v1_dot_ftl__pb2
 
 
-DESCRIPTOR = _descriptor_pool.Default().AddSerializedFile(b'\n(xyz/block/ftl/language/v1/language.proto\x12\x19xyz.block.ftl.language.v1\x1a\x1cgoogle/protobuf/struct.proto\x1a$xyz/block/ftl/schema/v1/schema.proto\x1a\x1axyz/block/ftl/v1/ftl.proto\"\x99\x03\n\x0cModuleConfig\x12\x12\n\x04name\x18\x01 \x01(\tR\x04name\x12\x10\n\x03\x64ir\x18\x02 \x01(\tR\x03\x64ir\x12\x1a\n\x08language\x18\x03 \x01(\tR\x08language\x12\x1d\n\ndeploy_dir\x18\x04 \x01(\tR\tdeployDir\x12\x19\n\x05\x62uild\x18\x05 \x01(\tH\x00R\x05\x62uild\x88\x01\x01\x12)\n\x0e\x64\x65v_mode_build\x18\x06 \x01(\tH\x01R\x0c\x64\x65vModeBuild\x88\x01\x01\x12\x1d\n\nbuild_lock\x18\x07 \x01(\tR\tbuildLock\x12\x14\n\x05watch\x18\t \x03(\tR\x05watch\x12@\n\x0flanguage_config\x18\n \x01(\x0b\x32\x17.google.protobuf.StructR\x0elanguageConfig\x12*\n\x11sql_migration_dir\x18\x0b \x01(\tR\x0fsqlMigrationDir\x12\"\n\rsql_query_dir\x18\x0c \x01(\tR\x0bsqlQueryDirB\x08\n\x06_buildB\x11\n\x0f_dev_mode_build\"d\n\rProjectConfig\x12\x10\n\x03\x64ir\x18\x01 \x01(\tR\x03\x64ir\x12\x12\n\x04name\x18\x02 \x01(\tR\x04name\x12\x15\n\x06no_git\x18\x03 \x01(\x08R\x05noGit\x12\x16\n\x06hermit\x18\x04 \x01(\x08R\x06hermit\"9\n\x1bGetCreateModuleFlagsRequest\x12\x1a\n\x08language\x18\x01 \x01(\tR\x08language\"\xcf\x02\n\x1cGetCreateModuleFlagsResponse\x12R\n\x05\x66lags\x18\x01 \x03(\x0b\x32<.xyz.block.ftl.language.v1.GetCreateModuleFlagsResponse.FlagR\x05\x66lags\x1a\xda\x01\n\x04\x46lag\x12\x12\n\x04name\x18\x01 \x01(\tR\x04name\x12\x12\n\x04help\x18\x02 \x01(\tR\x04help\x12\x19\n\x05\x65nvar\x18\x03 \x01(\tH\x00R\x05\x65nvar\x88\x01\x01\x12\x19\n\x05short\x18\x04 \x01(\tH\x01R\x05short\x88\x01\x01\x12%\n\x0bplaceholder\x18\x05 \x01(\tH\x02R\x0bplaceholder\x88\x01\x01\x12\x1d\n\x07\x64\x65\x66\x61ult\x18\x06 \x01(\tH\x03R\x07\x64\x65\x66\x61ult\x88\x01\x01\x42\x08\n\x06_envarB\x08\n\x06_shortB\x0e\n\x0c_placeholderB\n\n\x08_default\"\xbb\x01\n\x13\x43reateModuleRequest\x12\x12\n\x04name\x18\x01 \x01(\tR\x04name\x12\x10\n\x03\x64ir\x18\x02 \x01(\tR\x03\x64ir\x12O\n\x0eproject_config\x18\x03 \x01(\x0b\x32(.xyz.block.ftl.language.v1.ProjectConfigR\rprojectConfig\x12-\n\x05\x66lags\x18\x04 \x01(\x0b\x32\x17.google.protobuf.StructR\x05\x66lags\"\x16\n\x14\x43reateModuleResponse\"/\n\x1bModuleConfigDefaultsRequest\x12\x10\n\x03\x64ir\x18\x01 \x01(\tR\x03\x64ir\"\xfb\x02\n\x1cModuleConfigDefaultsResponse\x12\x1d\n\ndeploy_dir\x18\x01 \x01(\tR\tdeployDir\x12\x19\n\x05\x62uild\x18\x02 \x01(\tH\x00R\x05\x62uild\x88\x01\x01\x12)\n\x0e\x64\x65v_mode_build\x18\x03 \x01(\tH\x01R\x0c\x64\x65vModeBuild\x88\x01\x01\x12\"\n\nbuild_lock\x18\x04 \x01(\tH\x02R\tbuildLock\x88\x01\x01\x12\x14\n\x05watch\x18\x06 \x03(\tR\x05watch\x12@\n\x0flanguage_config\x18\x07 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+DESCRIPTOR = _descriptor_pool.Default().AddSerializedFile(b'\n(xyz/block/ftl/language/v1/language.proto\x12\x19xyz.block.ftl.language.v1\x1a\x1cgoogle/protobuf/struct.proto\x1a$xyz/block/ftl/schema/v1/schema.proto\x1a\x1axyz/block/ftl/v1/ftl.proto\"\x99\x03\n\x0cModuleConfig\x12\x12\n\x04name\x18\x01 \x01(\tR\x04name\x12\x10\n\x03\x64ir\x18\x02 \x01(\tR\x03\x64ir\x12\x1a\n\x08language\x18\x03 \x01(\tR\x08language\x12\x1d\n\ndeploy_dir\x18\x04 \x01(\tR\tdeployDir\x12\x19\n\x05\x62uild\x18\x05 \x01(\tH\x00R\x05\x62uild\x88\x01\x01\x12)\n\x0e\x64\x65v_mode_build\x18\x06 \x01(\tH\x01R\x0c\x64\x65vModeBuild\x88\x01\x01\x12\x1d\n\nbuild_lock\x18\x07 \x01(\tR\tbuildLock\x12\x14\n\x05watch\x18\t \x03(\tR\x05watch\x12@\n\x0flanguage_config\x18\n \x01(\x0b\x32\x17.google.protobuf.StructR\x0elanguageConfig\x12*\n\x11sql_migration_dir\x18\x0b \x01(\tR\x0fsqlMigrationDir\x12\"\n\rsql_query_dir\x18\x0c 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
 _globals = globals()
 _builder.BuildMessageAndEnumDescriptors(DESCRIPTOR, _globals)
@@ -80,19 +80,19 @@
   _globals['_AUTOREBUILDSTARTED']._serialized_start=3086
   _globals['_AUTOREBUILDSTARTED']._serialized_end=3137
   _globals['_BUILDSUCCESS']._serialized_start=3140
-  _globals['_BUILDSUCCESS']._serialized_end=3600
-  _globals['_BUILDFAILURE']._serialized_start=3603
-  _globals['_BUILDFAILURE']._serialized_end=3817
-  _globals['_BUILDRESPONSE']._serialized_start=3820
-  _globals['_BUILDRESPONSE']._serialized_end=4103
-  _globals['_GENERATESTUBSREQUEST']._serialized_start=4106
-  _globals['_GENERATESTUBSREQUEST']._serialized_end=4402
-  _globals['_GENERATESTUBSRESPONSE']._serialized_start=4404
-  _globals['_GENERATESTUBSRESPONSE']._serialized_end=4427
-  _globals['_SYNCSTUBREFERENCESREQUEST']._serialized_start=4430
-  _globals['_SYNCSTUBREFERENCESREQUEST']._serialized_end=4649
-  _globals['_SYNCSTUBREFERENCESRESPONSE']._serialized_start=4651
-  _globals['_SYNCSTUBREFERENCESRESPONSE']._serialized_end=4679
-  _globals['_LANGUAGESERVICE']._serialized_start=4682
-  _globals['_LANGUAGESERVICE']._serialized_end=5763
+  _globals['_BUILDSUCCESS']._serialized_end=3609
+  _globals['_BUILDFAILURE']._serialized_start=3612
+  _globals['_BUILDFAILURE']._serialized_end=3826
+  _globals['_BUILDRESPONSE']._serialized_start=3829
+  _globals['_BUILDRESPONSE']._serialized_end=4112
+  _globals['_GENERATESTUBSREQUEST']._serialized_start=4115
+  _globals['_GENERATESTUBSREQUEST']._serialized_end=4411
+  _globals['_GENERATESTUBSRESPONSE']._serialized_start=4413
+  _globals['_GENERATESTUBSRESPONSE']._serialized_end=4436
+  _globals['_SYNCSTUBREFERENCESREQUEST']._serialized_start=4439
+  _globals['_SYNCSTUBREFERENCESREQUEST']._serialized_end=4658
+  _globals['_SYNCSTUBREFERENCESRESPONSE']._serialized_start=4660
+  _globals['_SYNCSTUBREFERENCESRESPONSE']._serialized_end=4688
+  _globals['_LANGUAGESERVICE']._serialized_start=4691
+  _globals['_LANGUAGESERVICE']._serialized_end=5772
 # @@protoc_insertion_point(module_scope)
diff --git a/python-runtime/ftl/src/ftl/protos/xyz/block/ftl/language/v1/language_pb2.pyi b/python-runtime/ftl/src/ftl/protos/xyz/block/ftl/language/v1/language_pb2.pyi
index 107171c3fb..513afae05e 100644
--- a/python-runtime/ftl/src/ftl/protos/xyz/block/ftl/language/v1/language_pb2.pyi
+++ b/python-runtime/ftl/src/ftl/protos/xyz/block/ftl/language/v1/language_pb2.pyi
@@ -219,7 +219,7 @@ class AutoRebuildStarted(_message.Message):
     def __init__(self, context_id: _Optional[str] = ...) -> None: ...
 
 class BuildSuccess(_message.Message):
-    __slots__ = ("context_id", "is_automatic_rebuild", "module", "deploy", "docker_image", "errors", "dev_endpoint", "debug_port", "dev_runner_info_file")
+    __slots__ = ("context_id", "is_automatic_rebuild", "module", "deploy", "docker_image", "errors", "dev_endpoint", "debug_port", "dev_hot_reload_endpoint")
     CONTEXT_ID_FIELD_NUMBER: _ClassVar[int]
     IS_AUTOMATIC_REBUILD_FIELD_NUMBER: _ClassVar[int]
     MODULE_FIELD_NUMBER: _ClassVar[int]
@@ -228,7 +228,7 @@ class BuildSuccess(_message.Message):
     ERRORS_FIELD_NUMBER: _ClassVar[int]
     DEV_ENDPOINT_FIELD_NUMBER: _ClassVar[int]
     DEBUG_PORT_FIELD_NUMBER: _ClassVar[int]
-    DEV_RUNNER_INFO_FILE_FIELD_NUMBER: _ClassVar[int]
+    DEV_HOT_RELOAD_ENDPOINT_FIELD_NUMBER: _ClassVar[int]
     context_id: str
     is_automatic_rebuild: bool
     module: _schema_pb2.Module
@@ -237,8 +237,8 @@ class BuildSuccess(_message.Message):
     errors: ErrorList
     dev_endpoint: str
     debug_port: int
-    dev_runner_info_file: str
-    def __init__(self, context_id: _Optional[str] = ..., is_automatic_rebuild: bool = ..., module: _Optional[_Union[_schema_pb2.Module, _Mapping]] = ..., deploy: _Optional[_Iterable[str]] = ..., docker_image: _Optional[str] = ..., errors: _Optional[_Union[ErrorList, _Mapping]] = ..., dev_endpoint: _Optional[str] = ..., debug_port: _Optional[int] = ..., dev_runner_info_file: _Optional[str] = ...) -> None: ...
+    dev_hot_reload_endpoint: str
+    def __init__(self, context_id: _Optional[str] = ..., is_automatic_rebuild: bool = ..., module: _Optional[_Union[_schema_pb2.Module, _Mapping]] = ..., deploy: _Optional[_Iterable[str]] = ..., docker_image: _Optional[str] = ..., errors: _Optional[_Union[ErrorList, _Mapping]] = ..., dev_endpoint: _Optional[str] = ..., debug_port: _Optional[int] = ..., dev_hot_reload_endpoint: _Optional[str] = ...) -> None: ...
 
 class BuildFailure(_message.Message):
     __slots__ = ("context_id", "is_automatic_rebuild", "errors", "invalidate_dependencies")