diff --git a/proto/librarian/porter/v1/porter.proto b/proto/librarian/porter/v1/porter.proto
index 4d8f57f..bb6df57 100644
--- a/proto/librarian/porter/v1/porter.proto
+++ b/proto/librarian/porter/v1/porter.proto
@@ -47,24 +47,21 @@ service LibrarianPorterService {
 
 message GetPorterInformationRequest {}
 message GetPorterInformationResponse {
-  // Human-readable name. no format limit.
-  string name = 1;
-  // Version of the porter. no format limit.
-  string version = 2;
+  librarian.v1.PorterBinarySummary binary_summary = 1;
   // Global identifier. Same global name means same project. no format limit.
   // e.g. use project url "github.com/tuihub/porter-steam".
-  string global_name = 3;
+  string global_name = 2;
   // Region is used to group porters,
   // same porter in same region can be randomly selected.
   // Leave empty to use default region.
-  string region = 4;
+  string region = 3;
   // Supported features.
-  PorterFeatureSummary feature_summary = 5;
+  PorterFeatureSummary feature_summary = 4;
   // JSON schema for `FeatureRequest.context_json`.
   // Leave empty if not needed.
   // If needed, all feature requests should deliver `context_json`.
   // Can be used to configure third-party token, etc.
-  optional string context_json_schema = 6;
+  optional string context_json_schema = 5;
 }
 
 message PorterFeatureSummary {
diff --git a/proto/librarian/sephirah/v1/sephirah.proto b/proto/librarian/sephirah/v1/sephirah.proto
index 098694e..9001dec 100644
--- a/proto/librarian/sephirah/v1/sephirah.proto
+++ b/proto/librarian/sephirah/v1/sephirah.proto
@@ -80,7 +80,7 @@ service LibrarianSephirahService {
   rpc ListPorters(ListPortersRequest) returns (ListPortersResponse);
   // `Tiphereth` `Admin`
   rpc UpdatePorterStatus(UpdatePorterStatusRequest) returns (UpdatePorterStatusResponse);
-  // `Tiphereth` `Normal`
+  // `Tiphereth` `Admin` `Normal limited`
   rpc ListPorterGroups(ListPorterGroupsRequest) returns (ListPorterGroupsResponse);
   // `Tiphereth` `Normal`
   rpc CreatePorterContext(CreatePorterContextRequest) returns (CreatePorterContextResponse);
diff --git a/proto/librarian/sephirah/v1/tiphereth.proto b/proto/librarian/sephirah/v1/tiphereth.proto
index 7c7f330..7708087 100644
--- a/proto/librarian/sephirah/v1/tiphereth.proto
+++ b/proto/librarian/sephirah/v1/tiphereth.proto
@@ -155,6 +155,8 @@ message UpdatePorterStatusResponse {}
 
 message ListPorterGroupsRequest {
   librarian.v1.PagingRequest paging = 1;
+  // Normal user can only list active porters
+  repeated UserStatus status_filter = 2;
 }
 message ListPorterGroupsResponse {
   librarian.v1.PagingResponse paging = 1;
@@ -236,9 +238,9 @@ enum UserStatus {
 
 message Porter {
   librarian.v1.InternalID id = 1;
-  string name = 2;
-  string version = 3;
-  string global_name = 4;
+  librarian.v1.PorterBinarySummary binary_summary = 2;
+  string global_name = 3;
+  string region = 4;
   string feature_summary = 5;
   UserStatus status = 6;
   // Only used in response
@@ -296,9 +298,8 @@ enum PorterContextHandleStatus {
 }
 
 message PorterGroup {
-  string global_name = 1;
-  repeated string regions = 2;
-  string context_json = 3;
-  string name = 4;
-  string description = 5;
+  librarian.v1.PorterBinarySummary binary_summary = 1;
+  string global_name = 2;
+  repeated string regions = 3;
+  optional string context_json_schema = 4;
 }
diff --git a/proto/librarian/v1/common.proto b/proto/librarian/v1/common.proto
index 4955601..73af3cb 100644
--- a/proto/librarian/v1/common.proto
+++ b/proto/librarian/v1/common.proto
@@ -217,3 +217,22 @@ message FeedEnclosure {
   // `standard field`
   string type = 3;
 }
+
+message PorterBinarySummary {
+  // Server source code address.
+  // *Should* be a valid http address.
+  string source_code_address = 1;
+  // Binary build version.
+  // The content *should* be a semantic version string similar to the one generated by `git describe`,
+  // but rely on the actual implementation.
+  string build_version = 2;
+  // Binary build date.
+  // The content *should* be a date format that is human-readable.
+  string build_date = 3;
+  // Human-readable name. plain text.
+  string name = 4;
+  // Human-readable version. plain text.
+  string version = 5;
+  // Human-readable description. plain text or markdown.
+  string description = 6;
+}