diff --git a/.codecov.yml b/.codecov.yml
index b30a2e9e..6135d585 100644
--- a/.codecov.yml
+++ b/.codecov.yml
@@ -29,6 +29,7 @@ ignore:
   - "custom/"
   - "**/cli"
   - "**/rest"
+  - "**/*.pulsar.go"
   - "**/*.pb.go"
   - "**/*.pb.gw.go"
   - "**/test_utils.go"
diff --git a/Makefile b/Makefile
index b83338a0..268092f8 100644
--- a/Makefile
+++ b/Makefile
@@ -24,7 +24,7 @@ proto-format:
 	@$(protoImage) find ./proto -name "*.proto" -exec clang-format -i {} \;
 
 proto-lint:
-	@$(protoImage) buf lint --error-format=json
+	@$(protoImage) buf lint --error-format=json ./proto
 
 proto-check-breaking:
 	@$(protoImage) buf breaking --against $(HTTPS_GIT)#branch=main
diff --git a/api/opinit/opchild/v1/types.pulsar.go b/api/opinit/opchild/v1/types.pulsar.go
index 74887de6..da1735a5 100644
--- a/api/opinit/opchild/v1/types.pulsar.go
+++ b/api/opinit/opchild/v1/types.pulsar.go
@@ -4130,6 +4130,7 @@ func (x *PendingDeposits) GetCoins() []*v1beta1.Coin {
 	return nil
 }
 
+// CoinsWrapper defines the set of coins.
 type CoinsWrapper struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
diff --git a/api/opinit/ophost/v1/genesis.pulsar.go b/api/opinit/ophost/v1/genesis.pulsar.go
index 63deb2b9..f5a91f1c 100644
--- a/api/opinit/ophost/v1/genesis.pulsar.go
+++ b/api/opinit/ophost/v1/genesis.pulsar.go
@@ -2402,6 +2402,7 @@ func (x *Bridge) GetBatchInfos() []*BatchInfoWithOutput {
 	return nil
 }
 
+// WrappedOutput defines a wrapped output containing its index and proposal.
 type WrappedOutput struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
diff --git a/api/opinit/ophost/v1/query.pulsar.go b/api/opinit/ophost/v1/query.pulsar.go
index a724f958..9bd826cd 100644
--- a/api/opinit/ophost/v1/query.pulsar.go
+++ b/api/opinit/ophost/v1/query.pulsar.go
@@ -10677,6 +10677,7 @@ func (x *QueryTokenPairsResponse) GetPagination() *v1beta1.PageResponse {
 	return nil
 }
 
+// QueryLastFinalizedOutputRequest is request type for the Query/LastFinalizedOutput RPC method.
 type QueryLastFinalizedOutputRequest struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -10712,6 +10713,7 @@ func (x *QueryLastFinalizedOutputRequest) GetBridgeId() uint64 {
 	return 0
 }
 
+// QueryLastFinalizedOutputResponse is response type for the Query/LastFinalizedOutput RPC method
 type QueryLastFinalizedOutputResponse struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
diff --git a/proto/opinit/opchild/v1/types.proto b/proto/opinit/opchild/v1/types.proto
index 075bb475..b040c420 100644
--- a/proto/opinit/opchild/v1/types.proto
+++ b/proto/opinit/opchild/v1/types.proto
@@ -114,6 +114,7 @@ message PendingDeposits {
   ];
 }
 
+// CoinsWrapper defines the set of coins.
 message CoinsWrapper {
   repeated cosmos.base.v1beta1.Coin coins = 1 [
     (gogoproto.nullable)     = false,
diff --git a/proto/opinit/ophost/v1/genesis.proto b/proto/opinit/ophost/v1/genesis.proto
index 84801599..1a2275ee 100644
--- a/proto/opinit/ophost/v1/genesis.proto
+++ b/proto/opinit/ophost/v1/genesis.proto
@@ -38,6 +38,7 @@ message Bridge {
   repeated BatchInfoWithOutput batch_infos = 8 [(gogoproto.nullable) = false, (amino.dont_omitempty) = true];
 }
 
+// WrappedOutput defines a wrapped output containing its index and proposal.
 message WrappedOutput {
   uint64 output_index    = 1;
   Output output_proposal = 2 [(gogoproto.nullable) = false, (amino.dont_omitempty) = true];
diff --git a/proto/opinit/ophost/v1/query.proto b/proto/opinit/ophost/v1/query.proto
index dc359508..646b42d5 100644
--- a/proto/opinit/ophost/v1/query.proto
+++ b/proto/opinit/ophost/v1/query.proto
@@ -150,10 +150,12 @@ message QueryTokenPairsResponse {
   cosmos.base.query.v1beta1.PageResponse pagination = 2;
 }
 
+// QueryLastFinalizedOutputRequest is request type for the Query/LastFinalizedOutput RPC method.
 message QueryLastFinalizedOutputRequest {
   uint64 bridge_id = 1;
 }
 
+// QueryLastFinalizedOutputResponse is response type for the Query/LastFinalizedOutput RPC method
 message QueryLastFinalizedOutputResponse {
   uint64 output_index    = 1;
   Output output_proposal = 2 [(gogoproto.nullable) = false, (amino.dont_omitempty) = true];
@@ -174,7 +176,7 @@ message QueryOutputProposalResponse {
 
 // QueryOutputProposalsRequest is response type for the Query/OutputProposals RPC method
 message QueryOutputProposalsRequest {
-  uint64 bridge_id    = 1;
+  uint64 bridge_id = 1;
   // pagination defines the pagination in the request.
   cosmos.base.query.v1beta1.PageRequest pagination = 3;
 }
diff --git a/x/opchild/types/types.pb.go b/x/opchild/types/types.pb.go
index 03c9579a..18aad6a8 100644
--- a/x/opchild/types/types.pb.go
+++ b/x/opchild/types/types.pb.go
@@ -290,6 +290,7 @@ func (m *PendingDeposits) XXX_DiscardUnknown() {
 
 var xxx_messageInfo_PendingDeposits proto.InternalMessageInfo
 
+// CoinsWrapper defines the set of coins.
 type CoinsWrapper struct {
 	Coins github_com_cosmos_cosmos_sdk_types.Coins `protobuf:"bytes,1,rep,name=coins,proto3,castrepeated=github.com/cosmos/cosmos-sdk/types.Coins" json:"coins"`
 }
diff --git a/x/ophost/types/genesis.pb.go b/x/ophost/types/genesis.pb.go
index 721175f1..67b8ab42 100644
--- a/x/ophost/types/genesis.pb.go
+++ b/x/ophost/types/genesis.pb.go
@@ -196,6 +196,7 @@ func (m *Bridge) GetBatchInfos() []BatchInfoWithOutput {
 	return nil
 }
 
+// WrappedOutput defines a wrapped output containing its index and proposal.
 type WrappedOutput struct {
 	OutputIndex    uint64 `protobuf:"varint,1,opt,name=output_index,json=outputIndex,proto3" json:"output_index,omitempty"`
 	OutputProposal Output `protobuf:"bytes,2,opt,name=output_proposal,json=outputProposal,proto3" json:"output_proposal"`
diff --git a/x/ophost/types/query.pb.go b/x/ophost/types/query.pb.go
index bbcea246..8a8714d2 100644
--- a/x/ophost/types/query.pb.go
+++ b/x/ophost/types/query.pb.go
@@ -528,6 +528,7 @@ func (m *QueryTokenPairsResponse) GetPagination() *query.PageResponse {
 	return nil
 }
 
+// QueryLastFinalizedOutputRequest is request type for the Query/LastFinalizedOutput RPC method.
 type QueryLastFinalizedOutputRequest struct {
 	BridgeId uint64 `protobuf:"varint,1,opt,name=bridge_id,json=bridgeId,proto3" json:"bridge_id,omitempty"`
 }
@@ -572,6 +573,7 @@ func (m *QueryLastFinalizedOutputRequest) GetBridgeId() uint64 {
 	return 0
 }
 
+// QueryLastFinalizedOutputResponse is response type for the Query/LastFinalizedOutput RPC method
 type QueryLastFinalizedOutputResponse struct {
 	OutputIndex    uint64 `protobuf:"varint,1,opt,name=output_index,json=outputIndex,proto3" json:"output_index,omitempty"`
 	OutputProposal Output `protobuf:"bytes,2,opt,name=output_proposal,json=outputProposal,proto3" json:"output_proposal"`