diff --git a/cmd/oras/repository/tags.go b/cmd/oras/repository/tags.go
index 2f12b1d5e..c297d3897 100644
--- a/cmd/oras/repository/tags.go
+++ b/cmd/oras/repository/tags.go
@@ -69,6 +69,9 @@ func showTags(opts showTagsOptions) error {
 	if err != nil {
 		return err
 	}
+	if repo.Reference.Reference != "" {
+		return fmt.Errorf("unexpected tag or digest %q found in repository reference %q", repo.Reference.Reference, opts.targetRef)
+	}
 	return repo.Tags(ctx, opts.last, func(tags []string) error {
 		for _, tag := range tags {
 			if opts.excludeDigestTag && isDigestTag(tag) {
diff --git a/test/e2e/suite/auth/auth.go b/test/e2e/suite/auth/auth.go
index 2546fe02a..7de5f3d85 100644
--- a/test/e2e/suite/auth/auth.go
+++ b/test/e2e/suite/auth/auth.go
@@ -33,6 +33,8 @@ var _ = Describe("Common registry user", Ordered, func() {
 			RunWithoutLogin("push", "-a", "key=value", Host+"/repo:tag")
 			RunWithoutLogin("pull", Host+"/repo:tag")
 			RunWithoutLogin("manifest", "fetch", Host+"/repo:tag")
+			RunWithoutLogin("repo", "ls", Host)
+			RunWithoutLogin("repo", "tags", Reference(Host, "repo", ""))
 			RunWithoutLogin("manifest", "fetch-config", Host+"/repo:tag")
 		})
 	})
diff --git a/test/e2e/suite/command/manifest.go b/test/e2e/suite/command/manifest.go
index f4aba4c60..81e1afbcb 100644
--- a/test/e2e/suite/command/manifest.go
+++ b/test/e2e/suite/command/manifest.go
@@ -29,6 +29,7 @@ const (
 	foobarTag                       = "foobar"
 	foobarConfigDescriptor          = "{\"mediaType\":\"application/vnd.unknown.config.v1+json\",\"digest\":\"sha256:44136fa355b3678a1146ad16f7e8649e94fb4fc21fe77e8310c060f61caaff8a\",\"size\":2}"
 	multiImage                      = "multi"
+	foobarImageTag                  = "foobar"
 	digest_multi                    = "sha256:e2bfc9cc6a84ec2d7365b5a28c6bc5806b7fa581c9ad7883be955a64e3cc034f"
 	foobarDigest                    = "sha256:fd6ed2f36b5465244d5dc86cb4e7df0ab8a9d24adc57825099f522fe009a22bb"
 	manifest_multi                  = `{"mediaType":"application/vnd.oci.image.index.v1+json","schemaVersion":2,"manifests":[{"mediaType":"application/vnd.oci.image.manifest.v1+json","digest":"sha256:9d84a5716c66a1d1b9c13f8ed157ba7d1edfe7f9b8766728b8a1f25c0d9c14c1","size":458,"platform":{"architecture":"amd64","os":"linux"}},{"mediaType":"application/vnd.oci.image.manifest.v1+json","digest":"sha256:4f93460061882467e6fb3b772dc6ab72130d9ac1906aed2fc7589a5cd145433c","size":458,"platform":{"architecture":"arm64","os":"linux"}},{"mediaType":"application/vnd.oci.image.manifest.v1+json","digest":"sha256:58efe73e78fe043ca31b89007a025c594ce12aa7e6da27d21c7b14b50112e255","size":458,"platform":{"architecture":"arm","os":"linux","variant":"v7"}}]}`
diff --git a/test/e2e/suite/command/repo.go b/test/e2e/suite/command/repo.go
new file mode 100644
index 000000000..129496240
--- /dev/null
+++ b/test/e2e/suite/command/repo.go
@@ -0,0 +1,86 @@
+/*
+Copyright The ORAS Authors.
+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 command
+
+import (
+	. "github.com/onsi/ginkgo/v2"
+	. "github.com/onsi/gomega"
+	"github.com/onsi/gomega/gbytes"
+	. "oras.land/oras/test/e2e/internal/utils"
+)
+
+var _ = Describe("ORAS beginners:", func() {
+	When("running repo command", func() {
+		runAndShowPreviewInHelp([]string{"repo"})
+		When("running `repo ls`", func() {
+			It("should show preview in help", func() {
+				ORAS("repo", "ls", "--help").MatchKeyWords("[Preview] List", preview_desc, example_desc).Exec()
+			})
+
+			It("should call sub-commands with aliases", func() {
+				ORAS("repository", "list", "--help").MatchKeyWords("[Preview] List", preview_desc, example_desc).Exec()
+			})
+
+			It("should fail listing repositories if wrong registry provided", func() {
+				ORAS("repo", "ls").WithFailureCheck().MatchErrKeyWords("Error:").Exec()
+				ORAS("repo", "ls", Reference(Host, repo, "")).WithFailureCheck().MatchErrKeyWords("Error:").Exec()
+				ORAS("repo", "ls", Reference(Host, repo, "some-tag")).WithFailureCheck().MatchErrKeyWords("Error:").Exec()
+			})
+		})
+		When("running `repo tags`", func() {
+			It("should show preview in help", func() {
+				ORAS("repo", "tags", "--help").MatchKeyWords("[Preview] Show tags", preview_desc, example_desc).Exec()
+			})
+
+			It("should call sub-commands with aliases", func() {
+				ORAS("repository", "show-tags", "--help").MatchKeyWords("[Preview] Show tags", preview_desc, example_desc).Exec()
+			})
+
+			It("should fail listing repositories if wrong registry provided", func() {
+				ORAS("repo", "tags").WithFailureCheck().MatchErrKeyWords("Error:").Exec()
+				ORAS("repo", "tags", Host).WithFailureCheck().MatchErrKeyWords("Error:").Exec()
+				ORAS("repo", "tags", Reference(Host, repo, "some-tag")).WithFailureCheck().MatchErrKeyWords("Error:").Exec()
+			})
+		})
+	})
+})
+
+var _ = Describe("Common registry users:", func() {
+	When("running `repo ls`", func() {
+		It("should list repositories", func() {
+			ORAS("repository", "list", Host).MatchKeyWords(repo).Exec()
+		})
+		It("should list repositories via short command", func() {
+			ORAS("repo", "ls", Host).MatchKeyWords(repo).Exec()
+		})
+		It("should list partial repositories via `last` flag", func() {
+			session := ORAS("repo", "ls", Host, "--last", repo).Exec()
+			Expect(session.Out).ShouldNot(gbytes.Say(repo))
+		})
+	})
+	When("running `repo tags`", func() {
+		repoRef := Reference(Host, repo, "")
+		It("should list tags", func() {
+			ORAS("repository", "show-tags", repoRef).MatchKeyWords(multiImage, foobarImageTag).Exec()
+		})
+		It("should list tags via short command", func() {
+			ORAS("repo", "tags", repoRef).MatchKeyWords(multiImage, foobarImageTag).Exec()
+
+		})
+		It("should list partial tags via `last` flag", func() {
+			session := ORAS("repo", "tags", repoRef, "--last", foobarImageTag).MatchKeyWords(multiImage).Exec()
+			Expect(session.Out).ShouldNot(gbytes.Say(foobarImageTag))
+		})
+	})
+})