diff --git a/.github/workflows/link_checker_workflow.yaml b/.github/workflows/link_checker_workflow.yaml
index 4558f0fa42..ca7d89dfb2 100644
--- a/.github/workflows/link_checker_workflow.yaml
+++ b/.github/workflows/link_checker_workflow.yaml
@@ -39,6 +39,7 @@ jobs:
             --no-progress
             --cache
             --max-cache-age 1d
+            --exclude '^neo4j\+.*' --exclude '^bolt://.*'
             README.md
             docs/
           output: /tmp/foo.txt
diff --git a/go.mod b/go.mod
index 3782f4b446..2254089cee 100644
--- a/go.mod
+++ b/go.mod
@@ -63,6 +63,7 @@ require (
 	google.golang.org/api v0.256.0
 	google.golang.org/genai v1.37.0
 	google.golang.org/genproto v0.0.0-20251022142026-3a174f9686a8
+	google.golang.org/grpc v1.76.0
 	google.golang.org/protobuf v1.36.10
 	modernc.org/sqlite v1.40.0
 )
@@ -229,7 +230,6 @@ require (
 	golang.org/x/xerrors v0.0.0-20240903120638-7835f813f4da // indirect
 	google.golang.org/genproto/googleapis/api v0.0.0-20251111163417-95abcf5c77ba // indirect
 	google.golang.org/genproto/googleapis/rpc v0.0.0-20251103181224-f26f9409b101 // indirect
-	google.golang.org/grpc v1.76.0 // indirect
 	gopkg.in/inf.v0 v0.9.1 // indirect
 	gopkg.in/ini.v1 v1.67.0 // indirect
 	modernc.org/libc v1.66.10 // indirect
diff --git a/internal/sources/dataplex/dataplex.go b/internal/sources/dataplex/dataplex.go
index 9ddb05edd1..52d64b194d 100644
--- a/internal/sources/dataplex/dataplex.go
+++ b/internal/sources/dataplex/dataplex.go
@@ -26,7 +26,9 @@ import (
 	"github.com/googleapis/genai-toolbox/internal/util"
 	"go.opentelemetry.io/otel/trace"
 	"golang.org/x/oauth2/google"
+	"google.golang.org/api/iterator"
 	"google.golang.org/api/option"
+	grpcstatus "google.golang.org/grpc/status"
 )
 
 const SourceKind string = "dataplex"
@@ -173,9 +175,18 @@ func (s *Source) SearchAspectTypes(ctx context.Context, query string, pageSize i
 	var results []*dataplexpb.AspectType
 	for {
 		entry, err := it.Next()
-		if err != nil {
+
+		if err == iterator.Done {
 			break
 		}
+		if err != nil {
+			if st, ok := grpcstatus.FromError(err); ok {
+				errorCode := st.Code()
+				errorMessage := st.Message()
+				return nil, fmt.Errorf("failed to search aspect types with error code: %q message: %s", errorCode.String(), errorMessage)
+			}
+			return nil, fmt.Errorf("failed to search aspect types: %w", err)
+		}
 
 		// Create an instance of exponential backoff with default values for retrying GetAspectType calls
 		// InitialInterval, RandomizationFactor, Multiplier, MaxInterval = 500 ms, 0.5, 1.5, 60 s
@@ -214,9 +225,17 @@ func (s *Source) SearchEntries(ctx context.Context, query string, pageSize int,
 	var results []*dataplexpb.SearchEntriesResult
 	for {
 		entry, err := it.Next()
-		if err != nil {
+		if err == iterator.Done {
 			break
 		}
+		if err != nil {
+			if st, ok := grpcstatus.FromError(err); ok {
+				errorCode := st.Code()
+				errorMessage := st.Message()
+				return nil, fmt.Errorf("failed to search entries with error code: %q message: %s", errorCode.String(), errorMessage)
+			}
+			return nil, fmt.Errorf("failed to search entries: %w", err)
+		}
 		results = append(results, entry)
 	}
 	return results, nil