diff --git a/testing/test_spec_proto/Android.bp b/testing/test_spec_proto/Android.bp
new file mode 100644
index 0000000..1cac492
--- /dev/null
+++ b/testing/test_spec_proto/Android.bp
@@ -0,0 +1,29 @@
+// Copyright 2022 Google Inc. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package {
+    default_applicable_licenses: ["Android-Apache-2.0"],
+}
+
+bootstrap_go_package {
+    name: "soong-testing-test_spec_proto",
+    pkgPath: "android/soong/testing/test_spec_proto",
+    deps: [
+            "golang-protobuf-reflect-protoreflect",
+            "golang-protobuf-runtime-protoimpl",
+        ],
+    srcs: [
+        "test_spec.pb.go",
+    ],
+}
diff --git a/testing/test_spec_proto/OWNERS b/testing/test_spec_proto/OWNERS
new file mode 100644
index 0000000..03bcdf1
--- /dev/null
+++ b/testing/test_spec_proto/OWNERS
@@ -0,0 +1,4 @@
+dariofreni@google.com
+joeo@google.com
+ronish@google.com
+caditya@google.com
diff --git a/testing/test_spec_proto/go.mod b/testing/test_spec_proto/go.mod
new file mode 100644
index 0000000..482cdbb
--- /dev/null
+++ b/testing/test_spec_proto/go.mod
@@ -0,0 +1,2 @@
+module test_spec_proto
+go 1.18
\ No newline at end of file
diff --git a/testing/test_spec_proto/regen.sh b/testing/test_spec_proto/regen.sh
new file mode 100644
index 0000000..2cf8203
--- /dev/null
+++ b/testing/test_spec_proto/regen.sh
@@ -0,0 +1,3 @@
+#!/bin/bash
+
+aprotoc --go_out=paths=source_relative:. test_spec.proto
diff --git a/testing/test_spec_proto/test_spec.pb.go b/testing/test_spec_proto/test_spec.pb.go
new file mode 100644
index 0000000..5cce600
--- /dev/null
+++ b/testing/test_spec_proto/test_spec.pb.go
@@ -0,0 +1,244 @@
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// versions:
+// 	protoc-gen-go v1.30.0
+// 	protoc        v3.21.12
+// source: test_spec.proto
+
+package test_spec_proto
+
+import (
+	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
+	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
+	reflect "reflect"
+	sync "sync"
+)
+
+const (
+	// Verify that this generated code is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
+	// Verify that runtime/protoimpl is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
+)
+
+type TestSpec struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	// List of all test targets and their metadata.
+	OwnershipMetadataList []*TestSpec_OwnershipMetadata `protobuf:"bytes,1,rep,name=ownership_metadata_list,json=ownershipMetadataList" json:"ownership_metadata_list,omitempty"`
+}
+
+func (x *TestSpec) Reset() {
+	*x = TestSpec{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_test_spec_proto_msgTypes[0]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *TestSpec) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*TestSpec) ProtoMessage() {}
+
+func (x *TestSpec) ProtoReflect() protoreflect.Message {
+	mi := &file_test_spec_proto_msgTypes[0]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use TestSpec.ProtoReflect.Descriptor instead.
+func (*TestSpec) Descriptor() ([]byte, []int) {
+	return file_test_spec_proto_rawDescGZIP(), []int{0}
+}
+
+func (x *TestSpec) GetOwnershipMetadataList() []*TestSpec_OwnershipMetadata {
+	if x != nil {
+		return x.OwnershipMetadataList
+	}
+	return nil
+}
+
+type TestSpec_OwnershipMetadata struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	TargetName   *string `protobuf:"bytes,1,opt,name=target_name,json=targetName" json:"target_name,omitempty"`
+	Path         *string `protobuf:"bytes,2,opt,name=path" json:"path,omitempty"`
+	TrendyTeamId *string `protobuf:"bytes,3,opt,name=trendy_team_id,json=trendyTeamId" json:"trendy_team_id,omitempty"`
+}
+
+func (x *TestSpec_OwnershipMetadata) Reset() {
+	*x = TestSpec_OwnershipMetadata{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_test_spec_proto_msgTypes[1]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *TestSpec_OwnershipMetadata) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*TestSpec_OwnershipMetadata) ProtoMessage() {}
+
+func (x *TestSpec_OwnershipMetadata) ProtoReflect() protoreflect.Message {
+	mi := &file_test_spec_proto_msgTypes[1]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use TestSpec_OwnershipMetadata.ProtoReflect.Descriptor instead.
+func (*TestSpec_OwnershipMetadata) Descriptor() ([]byte, []int) {
+	return file_test_spec_proto_rawDescGZIP(), []int{0, 0}
+}
+
+func (x *TestSpec_OwnershipMetadata) GetTargetName() string {
+	if x != nil && x.TargetName != nil {
+		return *x.TargetName
+	}
+	return ""
+}
+
+func (x *TestSpec_OwnershipMetadata) GetPath() string {
+	if x != nil && x.Path != nil {
+		return *x.Path
+	}
+	return ""
+}
+
+func (x *TestSpec_OwnershipMetadata) GetTrendyTeamId() string {
+	if x != nil && x.TrendyTeamId != nil {
+		return *x.TrendyTeamId
+	}
+	return ""
+}
+
+var File_test_spec_proto protoreflect.FileDescriptor
+
+var file_test_spec_proto_rawDesc = []byte{
+	0x0a, 0x0f, 0x74, 0x65, 0x73, 0x74, 0x5f, 0x73, 0x70, 0x65, 0x63, 0x2e, 0x70, 0x72, 0x6f, 0x74,
+	0x6f, 0x12, 0x0f, 0x74, 0x65, 0x73, 0x74, 0x5f, 0x73, 0x70, 0x65, 0x63, 0x5f, 0x70, 0x72, 0x6f,
+	0x74, 0x6f, 0x22, 0xdf, 0x01, 0x0a, 0x08, 0x54, 0x65, 0x73, 0x74, 0x53, 0x70, 0x65, 0x63, 0x12,
+	0x63, 0x0a, 0x17, 0x6f, 0x77, 0x6e, 0x65, 0x72, 0x73, 0x68, 0x69, 0x70, 0x5f, 0x6d, 0x65, 0x74,
+	0x61, 0x64, 0x61, 0x74, 0x61, 0x5f, 0x6c, 0x69, 0x73, 0x74, 0x18, 0x01, 0x20, 0x03, 0x28, 0x0b,
+	0x32, 0x2b, 0x2e, 0x74, 0x65, 0x73, 0x74, 0x5f, 0x73, 0x70, 0x65, 0x63, 0x5f, 0x70, 0x72, 0x6f,
+	0x74, 0x6f, 0x2e, 0x54, 0x65, 0x73, 0x74, 0x53, 0x70, 0x65, 0x63, 0x2e, 0x4f, 0x77, 0x6e, 0x65,
+	0x72, 0x73, 0x68, 0x69, 0x70, 0x4d, 0x65, 0x74, 0x61, 0x64, 0x61, 0x74, 0x61, 0x52, 0x15, 0x6f,
+	0x77, 0x6e, 0x65, 0x72, 0x73, 0x68, 0x69, 0x70, 0x4d, 0x65, 0x74, 0x61, 0x64, 0x61, 0x74, 0x61,
+	0x4c, 0x69, 0x73, 0x74, 0x1a, 0x6e, 0x0a, 0x11, 0x4f, 0x77, 0x6e, 0x65, 0x72, 0x73, 0x68, 0x69,
+	0x70, 0x4d, 0x65, 0x74, 0x61, 0x64, 0x61, 0x74, 0x61, 0x12, 0x1f, 0x0a, 0x0b, 0x74, 0x61, 0x72,
+	0x67, 0x65, 0x74, 0x5f, 0x6e, 0x61, 0x6d, 0x65, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x0a,
+	0x74, 0x61, 0x72, 0x67, 0x65, 0x74, 0x4e, 0x61, 0x6d, 0x65, 0x12, 0x12, 0x0a, 0x04, 0x70, 0x61,
+	0x74, 0x68, 0x18, 0x02, 0x20, 0x01, 0x28, 0x09, 0x52, 0x04, 0x70, 0x61, 0x74, 0x68, 0x12, 0x24,
+	0x0a, 0x0e, 0x74, 0x72, 0x65, 0x6e, 0x64, 0x79, 0x5f, 0x74, 0x65, 0x61, 0x6d, 0x5f, 0x69, 0x64,
+	0x18, 0x03, 0x20, 0x01, 0x28, 0x09, 0x52, 0x0c, 0x74, 0x72, 0x65, 0x6e, 0x64, 0x79, 0x54, 0x65,
+	0x61, 0x6d, 0x49, 0x64, 0x42, 0x27, 0x5a, 0x25, 0x61, 0x6e, 0x64, 0x72, 0x6f, 0x69, 0x64, 0x2f,
+	0x73, 0x6f, 0x6f, 0x6e, 0x67, 0x2f, 0x74, 0x65, 0x73, 0x74, 0x69, 0x6e, 0x67, 0x2f, 0x74, 0x65,
+	0x73, 0x74, 0x5f, 0x73, 0x70, 0x65, 0x63, 0x5f, 0x70, 0x72, 0x6f, 0x74, 0x6f,
+}
+
+var (
+	file_test_spec_proto_rawDescOnce sync.Once
+	file_test_spec_proto_rawDescData = file_test_spec_proto_rawDesc
+)
+
+func file_test_spec_proto_rawDescGZIP() []byte {
+	file_test_spec_proto_rawDescOnce.Do(func() {
+		file_test_spec_proto_rawDescData = protoimpl.X.CompressGZIP(file_test_spec_proto_rawDescData)
+	})
+	return file_test_spec_proto_rawDescData
+}
+
+var file_test_spec_proto_msgTypes = make([]protoimpl.MessageInfo, 2)
+var file_test_spec_proto_goTypes = []interface{}{
+	(*TestSpec)(nil),                   // 0: test_spec_proto.TestSpec
+	(*TestSpec_OwnershipMetadata)(nil), // 1: test_spec_proto.TestSpec.OwnershipMetadata
+}
+var file_test_spec_proto_depIdxs = []int32{
+	1, // 0: test_spec_proto.TestSpec.ownership_metadata_list:type_name -> test_spec_proto.TestSpec.OwnershipMetadata
+	1, // [1:1] is the sub-list for method output_type
+	1, // [1:1] is the sub-list for method input_type
+	1, // [1:1] is the sub-list for extension type_name
+	1, // [1:1] is the sub-list for extension extendee
+	0, // [0:1] is the sub-list for field type_name
+}
+
+func init() { file_test_spec_proto_init() }
+func file_test_spec_proto_init() {
+	if File_test_spec_proto != nil {
+		return
+	}
+	if !protoimpl.UnsafeEnabled {
+		file_test_spec_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*TestSpec); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_test_spec_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*TestSpec_OwnershipMetadata); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+	}
+	type x struct{}
+	out := protoimpl.TypeBuilder{
+		File: protoimpl.DescBuilder{
+			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
+			RawDescriptor: file_test_spec_proto_rawDesc,
+			NumEnums:      0,
+			NumMessages:   2,
+			NumExtensions: 0,
+			NumServices:   0,
+		},
+		GoTypes:           file_test_spec_proto_goTypes,
+		DependencyIndexes: file_test_spec_proto_depIdxs,
+		MessageInfos:      file_test_spec_proto_msgTypes,
+	}.Build()
+	File_test_spec_proto = out.File
+	file_test_spec_proto_rawDesc = nil
+	file_test_spec_proto_goTypes = nil
+	file_test_spec_proto_depIdxs = nil
+}
diff --git a/testing/test_spec_proto/test_spec.proto b/testing/test_spec_proto/test_spec.proto
new file mode 100644
index 0000000..86bc789
--- /dev/null
+++ b/testing/test_spec_proto/test_spec.proto
@@ -0,0 +1,33 @@
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+syntax = "proto2";
+package test_spec_proto;
+option go_package = "android/soong/testing/test_spec_proto";
+
+message TestSpec {
+
+  message OwnershipMetadata {
+    // REQUIRED: Name of the build target
+    optional string target_name = 1;
+
+    // REQUIRED: Code location of the target.
+    // To be used to support legacy/backup systems that use OWNERS file and is
+    // also required for our dashboard to support per code location basis UI
+    optional string path = 2;
+
+    // REQUIRED: Team ID of the team that owns this target.
+    optional string trendy_team_id = 3;
+  }
+
+  // List of all test targets and their metadata.
+  repeated OwnershipMetadata ownership_metadata_list = 1;
+}