diff --git a/shortcuts/wiki/wiki_node_get.go b/shortcuts/wiki/wiki_node_get.go
index 62ccdd54d6..1825acf173 100644
--- a/shortcuts/wiki/wiki_node_get.go
+++ b/shortcuts/wiki/wiki_node_get.go
@@ -245,6 +245,9 @@ func parseWikiNodeGetSpec(rawToken, rawObjType, rawSpaceID string) (wikiNodeGetS
 	if err := validateOptionalResourceName(spec.Token, "--node-token"); err != nil {
 		return wikiNodeGetSpec{}, err
 	}
+	if err := validateWikiResourceTokenLength(spec.Token, "--node-token"); err != nil {
+		return wikiNodeGetSpec{}, err
+	}
 	if err := validateOptionalResourceName(spec.SpaceID, "--space-id"); err != nil {
 		return wikiNodeGetSpec{}, err
 	}
diff --git a/shortcuts/wiki/wiki_node_get_test.go b/shortcuts/wiki/wiki_node_get_test.go
index 7df66db08e..f94c3293ce 100644
--- a/shortcuts/wiki/wiki_node_get_test.go
+++ b/shortcuts/wiki/wiki_node_get_test.go
@@ -6,35 +6,50 @@ package wiki
 import (
 	"bytes"
 	"encoding/json"
+	"errors"
 	"net/http"
 	"reflect"
 	"strings"
 	"testing"
 
+	"github.com/larksuite/cli/errs"
 	"github.com/larksuite/cli/internal/cmdutil"
 	"github.com/larksuite/cli/internal/httpmock"
 	"github.com/spf13/cobra"
 )
 
+const (
+	testWikiNodeToken = "Abcdw_EXAMPLE_WIKI_TOKEN_27"
+	testDocxObjToken  = "Abcdd_EXAMPLE_DOCX_TOKEN_27"
+	testBaseObjToken  = "Abcdb_EXAMPLE_BASE_TOKEN_27"
+	testSheetObjToken = "Abcds_EXAMPLE_SHT_TOKEN_027"
+)
+
 func TestParseWikiNodeGetSpecRawNodeToken(t *testing.T) {
 	t.Parallel()
 
-	spec, err := parseWikiNodeGetSpec("wikcnABC", "", "")
+	spec, err := parseWikiNodeGetSpec(testWikiNodeToken, "", "")
 	if err != nil {
 		t.Fatalf("parseWikiNodeGetSpec() error = %v", err)
 	}
-	if spec.Token != "wikcnABC" || spec.ObjType != "" || spec.SourceKind != "raw-node" {
-		t.Fatalf("spec = %+v, want raw-node wikcnABC with no obj_type", spec)
+	if spec.Token != testWikiNodeToken || spec.ObjType != "" || spec.SourceKind != "raw-node" {
+		t.Fatalf("spec = %+v, want raw-node %s with no obj_type", spec, testWikiNodeToken)
 	}
-	if got := spec.RequestParams(); !reflect.DeepEqual(got, map[string]interface{}{"token": "wikcnABC"}) {
-		t.Fatalf("RequestParams() = %v, want {token: wikcnABC}", got)
+	if got := spec.RequestParams(); !reflect.DeepEqual(got, map[string]interface{}{"token": testWikiNodeToken}) {
+		t.Fatalf("RequestParams() = %v, want {token: %s}", got, testWikiNodeToken)
 	}
 }
 
 func TestParseWikiNodeGetSpecOpaqueRawNodeToken(t *testing.T) {
 	t.Parallel()
 
-	const opaqueNodeToken = "Sm78_EXAMPLE_TOKEN"
+	// Opaque tokens must not require a known resource-type prefix. Use a
+	// complete-length fixture so this test remains independent of the
+	// truncated-token validation contract.
+	const opaqueNodeToken = "Sm78_EXAMPLE_OPAQUE_TOKEN_X"
+	if len(opaqueNodeToken) != minWikiResourceTokenLength {
+		t.Fatalf("opaqueNodeToken length = %d, want %d", len(opaqueNodeToken), minWikiResourceTokenLength)
+	}
 	spec, err := parseWikiNodeGetSpec(opaqueNodeToken, "", "")
 	if err != nil {
 		t.Fatalf("parseWikiNodeGetSpec() error = %v", err)
@@ -50,70 +65,70 @@ func TestParseWikiNodeGetSpecOpaqueRawNodeToken(t *testing.T) {
 func TestParseWikiNodeGetSpecRawObjTokenWithExplicitObjType(t *testing.T) {
 	t.Parallel()
 
-	spec, err := parseWikiNodeGetSpec("docxXYZ", "docx", "")
+	spec, err := parseWikiNodeGetSpec(testDocxObjToken, "docx", "")
 	if err != nil {
 		t.Fatalf("parseWikiNodeGetSpec() error = %v", err)
 	}
-	if spec.Token != "docxXYZ" || spec.ObjType != "docx" || spec.SourceKind != "raw-obj" {
-		t.Fatalf("spec = %+v, want raw-obj docxXYZ obj_type=docx", spec)
+	if spec.Token != testDocxObjToken || spec.ObjType != "docx" || spec.SourceKind != "raw-obj" {
+		t.Fatalf("spec = %+v, want raw-obj %s obj_type=docx", spec, testDocxObjToken)
 	}
 }
 
 func TestParseWikiNodeGetSpecRawTokenWithoutObjTypeDefaultsToNodeToken(t *testing.T) {
 	t.Parallel()
 
-	spec, err := parseWikiNodeGetSpec("bascnXYZ", "", "")
+	spec, err := parseWikiNodeGetSpec(testBaseObjToken, "", "")
 	if err != nil {
 		t.Fatalf("parseWikiNodeGetSpec() error = %v", err)
 	}
-	if spec.Token != "bascnXYZ" || spec.ObjType != "" || spec.SourceKind != "raw-node" {
-		t.Fatalf("spec = %+v, want raw-node bascnXYZ with no obj_type", spec)
+	if spec.Token != testBaseObjToken || spec.ObjType != "" || spec.SourceKind != "raw-node" {
+		t.Fatalf("spec = %+v, want raw-node %s with no obj_type", spec, testBaseObjToken)
 	}
 }
 
 func TestParseWikiNodeGetSpecRawTokenWithObjTypeUsesObjTokenLookup(t *testing.T) {
 	t.Parallel()
 
-	spec, err := parseWikiNodeGetSpec("wikcnABC", "docx", "")
+	spec, err := parseWikiNodeGetSpec(testWikiNodeToken, "docx", "")
 	if err != nil {
 		t.Fatalf("parseWikiNodeGetSpec() error = %v", err)
 	}
-	if spec.Token != "wikcnABC" || spec.ObjType != "docx" || spec.SourceKind != "raw-obj" {
-		t.Fatalf("spec = %+v, want raw-obj wikcnABC with obj_type docx", spec)
+	if spec.Token != testWikiNodeToken || spec.ObjType != "docx" || spec.SourceKind != "raw-obj" {
+		t.Fatalf("spec = %+v, want raw-obj %s with obj_type docx", spec, testWikiNodeToken)
 	}
-	if got := spec.RequestParams(); !reflect.DeepEqual(got, map[string]interface{}{"token": "wikcnABC", "obj_type": "docx"}) {
-		t.Fatalf("RequestParams() = %v, want {token: wikcnABC, obj_type: docx}", got)
+	if got := spec.RequestParams(); !reflect.DeepEqual(got, map[string]interface{}{"token": testWikiNodeToken, "obj_type": "docx"}) {
+		t.Fatalf("RequestParams() = %v, want {token: %s, obj_type: docx}", got, testWikiNodeToken)
 	}
 }
 
 func TestParseWikiNodeGetSpecExtractsTokenFromWikiURL(t *testing.T) {
 	t.Parallel()
 
-	spec, err := parseWikiNodeGetSpec("https://feishu.cn/wiki/wikcnABC?foo=bar", "", "")
+	spec, err := parseWikiNodeGetSpec("https://feishu.cn/wiki/"+testWikiNodeToken+"?foo=bar", "", "")
 	if err != nil {
 		t.Fatalf("parseWikiNodeGetSpec() error = %v", err)
 	}
-	if spec.Token != "wikcnABC" || spec.ObjType != "" || spec.SourceKind != "url-wiki" {
-		t.Fatalf("spec = %+v, want url-wiki wikcnABC", spec)
+	if spec.Token != testWikiNodeToken || spec.ObjType != "" || spec.SourceKind != "url-wiki" {
+		t.Fatalf("spec = %+v, want url-wiki %s", spec, testWikiNodeToken)
 	}
 }
 
 func TestParseWikiNodeGetSpecExtractsTokenAndObjTypeFromDocxURL(t *testing.T) {
 	t.Parallel()
 
-	spec, err := parseWikiNodeGetSpec("https://feishu.cn/docx/docxXYZ", "", "")
+	spec, err := parseWikiNodeGetSpec("https://feishu.cn/docx/"+testDocxObjToken, "", "")
 	if err != nil {
 		t.Fatalf("parseWikiNodeGetSpec() error = %v", err)
 	}
-	if spec.Token != "docxXYZ" || spec.ObjType != "docx" || spec.SourceKind != "url-obj" {
-		t.Fatalf("spec = %+v, want url-obj docxXYZ", spec)
+	if spec.Token != testDocxObjToken || spec.ObjType != "docx" || spec.SourceKind != "url-obj" {
+		t.Fatalf("spec = %+v, want url-obj %s", spec, testDocxObjToken)
 	}
 }
 
 func TestParseWikiNodeGetSpecRejectsURLObjTypeMismatch(t *testing.T) {
 	t.Parallel()
 
-	_, err := parseWikiNodeGetSpec("https://feishu.cn/sheets/shtXYZ", "docx", "")
+	_, err := parseWikiNodeGetSpec("https://feishu.cn/sheets/"+testSheetObjToken, "docx", "")
 	if err == nil || !strings.Contains(err.Error(), "does not match the obj_type") {
 		t.Fatalf("expected URL/obj-type mismatch error, got %v", err)
 	}
@@ -145,6 +160,80 @@ func TestParseWikiNodeGetSpecRejectsEmptyToken(t *testing.T) {
 	}
 }
 
+func TestParseWikiNodeGetSpecRejectsTruncatedToken(t *testing.T) {
+	t.Parallel()
+
+	for _, input := range []string{
+		"PImXw",
+		"https://feishu.cn/wiki/PImXw",
+	} {
+		t.Run(input, func(t *testing.T) {
+			t.Parallel()
+
+			_, err := parseWikiNodeGetSpec(input, "", "")
+			if err == nil {
+				t.Fatal("expected truncated token validation error")
+			}
+			p, ok := errs.ProblemOf(err)
+			if !ok {
+				t.Fatalf("ProblemOf() ok=false for %T: %v", err, err)
+			}
+			var validationErr *errs.ValidationError
+			if !errors.As(err, &validationErr) {
+				t.Fatalf("expected ValidationError, got %T: %v", err, err)
+			}
+			if p.Category != errs.CategoryValidation || p.Subtype != errs.SubtypeInvalidArgument || validationErr.Param != "--node-token" {
+				t.Fatalf("problem = %#v param=%q, want validation/invalid_argument/--node-token", p, validationErr.Param)
+			}
+			if !strings.Contains(p.Hint, "complete token") || !strings.Contains(p.Hint, "full Lark URL") {
+				t.Fatalf("hint = %q, want actionable complete-token guidance", p.Hint)
+			}
+		})
+	}
+}
+
+func TestValidateWikiResourceTokenLengthBoundary(t *testing.T) {
+	t.Parallel()
+
+	if err := validateWikiResourceTokenLength(strings.Repeat("a", minWikiResourceTokenLength-1), "--node-token"); err == nil {
+		t.Fatal("expected a 26-character token to be rejected")
+	}
+	if err := validateWikiResourceTokenLength(strings.Repeat("a", minWikiResourceTokenLength), "--node-token"); err != nil {
+		t.Fatalf("expected a 27-character token to be accepted, got %v", err)
+	}
+}
+
+func TestWikiNodeGetRejectsTruncatedTokenBeforeHTTPRequest(t *testing.T) {
+	t.Setenv("LARKSUITE_CLI_CONFIG_DIR", t.TempDir())
+
+	factory, stdout, _, reg := cmdutil.TestFactory(t, wikiTestConfig())
+	requested := false
+	reg.Register(&httpmock.Stub{
+		Method:   "GET",
+		URL:      "/open-apis/wiki/v2/spaces/get_node",
+		Optional: true,
+		OnMatch: func(*http.Request) {
+			requested = true
+		},
+	})
+
+	err := mountAndRunWiki(t, WikiNodeGet, []string{
+		"+node-get",
+		"--node-token", "PImXw",
+		"--as", "bot",
+	}, factory, stdout)
+	if err == nil {
+		t.Fatal("expected truncated token validation error")
+	}
+	if requested {
+		t.Fatal("truncated token reached the OpenAPI transport")
+	}
+	p, ok := errs.ProblemOf(err)
+	if !ok || p.Category != errs.CategoryValidation || p.Subtype != errs.SubtypeInvalidArgument {
+		t.Fatalf("problem = %#v ok=%v, want validation/invalid_argument", p, ok)
+	}
+}
+
 func TestResolveWikiNodeGetRawTokenPrefersNodeToken(t *testing.T) {
 	t.Parallel()
 
@@ -198,7 +287,7 @@ func TestResolveWikiNodeGetRawTokenEmptyDefersToParser(t *testing.T) {
 func TestBuildWikiNodeGetDryRunSendsObjType(t *testing.T) {
 	t.Parallel()
 
-	spec, err := parseWikiNodeGetSpec("https://feishu.cn/docx/docxXYZ", "", "")
+	spec, err := parseWikiNodeGetSpec("https://feishu.cn/docx/"+testDocxObjToken, "", "")
 	if err != nil {
 		t.Fatalf("parseWikiNodeGetSpec() error = %v", err)
 	}
@@ -221,7 +310,7 @@ func TestBuildWikiNodeGetDryRunSendsObjType(t *testing.T) {
 	if len(got.API) != 1 || got.API[0].URL != "/open-apis/wiki/v2/spaces/get_node" {
 		t.Fatalf("dry-run api = %#v, want single get_node call", got.API)
 	}
-	if got.API[0].Params["token"] != "docxXYZ" || got.API[0].Params["obj_type"] != "docx" {
+	if got.API[0].Params["token"] != testDocxObjToken || got.API[0].Params["obj_type"] != "docx" {
 		t.Fatalf("dry-run params = %#v", got.API[0].Params)
 	}
 }
@@ -279,15 +368,15 @@ func TestWikiNodeGetMountedExecuteParsesURLAndFormatsOutput(t *testing.T) {
 
 	err := mountAndRunWiki(t, WikiNodeGet, []string{
 		"+node-get",
-		"--node-token", "https://feishu.cn/docx/docxXYZ",
+		"--node-token", "https://feishu.cn/docx/" + testDocxObjToken,
 		"--as", "bot",
 	}, factory, stdout)
 	if err != nil {
 		t.Fatalf("mountAndRunWiki() error = %v", err)
 	}
 
-	if !strings.Contains(capturedQuery, "token=docxXYZ") || !strings.Contains(capturedQuery, "obj_type=docx") {
-		t.Fatalf("captured query = %q, want token=docxXYZ and obj_type=docx", capturedQuery)
+	if !strings.Contains(capturedQuery, "token="+testDocxObjToken) || !strings.Contains(capturedQuery, "obj_type=docx") {
+		t.Fatalf("captured query = %q, want token=%s and obj_type=docx", capturedQuery, testDocxObjToken)
 	}
 
 	data := decodeWikiEnvelope(t, stdout)
@@ -358,7 +447,7 @@ func TestWikiNodeGetMountedAcceptsNodeTokenFlag(t *testing.T) {
 	parent := mountWikiNodeGetWithFlagOut(t, factory, &flagOut)
 	parent.SetArgs([]string{
 		"+node-get",
-		"--node-token", "https://feishu.cn/docx/docxXYZ",
+		"--node-token", "https://feishu.cn/docx/" + testDocxObjToken,
 		"--as", "bot",
 	})
 	stdout.Reset()
@@ -366,8 +455,8 @@ func TestWikiNodeGetMountedAcceptsNodeTokenFlag(t *testing.T) {
 		t.Fatalf("parent.Execute() error = %v", err)
 	}
 
-	if !strings.Contains(capturedQuery, "token=docxXYZ") || !strings.Contains(capturedQuery, "obj_type=docx") {
-		t.Fatalf("captured query = %q, want token=docxXYZ and obj_type=docx", capturedQuery)
+	if !strings.Contains(capturedQuery, "token="+testDocxObjToken) || !strings.Contains(capturedQuery, "obj_type=docx") {
+		t.Fatalf("captured query = %q, want token=%s and obj_type=docx", capturedQuery, testDocxObjToken)
 	}
 
 	data := decodeWikiEnvelope(t, stdout)
@@ -428,7 +517,7 @@ func TestWikiNodeGetMountedLegacyTokenFlagWarnsButWorks(t *testing.T) {
 	parent := mountWikiNodeGetWithFlagOut(t, factory, &flagOut)
 	parent.SetArgs([]string{
 		"+node-get",
-		"--token", "wikcnABC",
+		"--token", testWikiNodeToken,
 		"--as", "bot",
 	})
 	stdout.Reset()
@@ -491,7 +580,7 @@ func TestWikiNodeGetFallsBackToCreatorWhenNodeCreatorMissing(t *testing.T) {
 
 	err := mountAndRunWiki(t, WikiNodeGet, []string{
 		"+node-get",
-		"--node-token", "wikcnABC",
+		"--node-token", testWikiNodeToken,
 		"--as", "bot",
 	}, factory, stdout)
 	if err != nil {
@@ -530,7 +619,7 @@ func TestWikiNodeGetRejectsSpaceIDMismatch(t *testing.T) {
 
 	err := mountAndRunWiki(t, WikiNodeGet, []string{
 		"+node-get",
-		"--node-token", "wikcnABC",
+		"--node-token", testWikiNodeToken,
 		"--space-id", "space_expected",
 		"--as", "bot",
 	}, factory, stdout)
diff --git a/shortcuts/wiki/wiki_token_validation.go b/shortcuts/wiki/wiki_token_validation.go
new file mode 100644
index 0000000000..43b4e174c3
--- /dev/null
+++ b/shortcuts/wiki/wiki_token_validation.go
@@ -0,0 +1,23 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package wiki
+
+import "github.com/larksuite/cli/errs"
+
+// minWikiResourceTokenLength is the minimum length of a complete Lark
+// resource token accepted by Wiki node lookup.
+const minWikiResourceTokenLength = 27
+
+func validateWikiResourceTokenLength(token, flagName string) error {
+	if len(token) >= minWikiResourceTokenLength {
+		return nil
+	}
+	return errs.NewValidationError(
+		errs.SubtypeInvalidArgument,
+		"%s is too short to be a complete Lark resource token",
+		flagName,
+	).WithParam(flagName).WithHint(
+		"Pass the complete token or a full Lark URL; do not pass a truncated, masked, or placeholder value.",
+	)
+}
diff --git a/tests/cli_e2e/wiki/wiki_node_get_dryrun_test.go b/tests/cli_e2e/wiki/wiki_node_get_dryrun_test.go
new file mode 100644
index 0000000000..23d2f3d2de
--- /dev/null
+++ b/tests/cli_e2e/wiki/wiki_node_get_dryrun_test.go
@@ -0,0 +1,40 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package wiki
+
+import (
+	"context"
+	"testing"
+	"time"
+
+	clie2e "github.com/larksuite/cli/tests/cli_e2e"
+	"github.com/stretchr/testify/require"
+	"github.com/tidwall/gjson"
+)
+
+func TestWikiNodeGetDryRunRejectsTruncatedToken(t *testing.T) {
+	t.Setenv("LARKSUITE_CLI_CONFIG_DIR", t.TempDir())
+	t.Setenv("LARKSUITE_CLI_APP_ID", "wiki_node_get_dryrun_test")
+	t.Setenv("LARKSUITE_CLI_APP_SECRET", "wiki_node_get_dryrun_secret")
+	t.Setenv("LARKSUITE_CLI_BRAND", "feishu")
+
+	ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
+	t.Cleanup(cancel)
+
+	result, err := clie2e.RunCmd(ctx, clie2e.Request{
+		Args: []string{
+			"wiki", "+node-get",
+			"--node-token", "PImXw",
+			"--dry-run",
+		},
+		DefaultAs: "bot",
+	})
+	require.NoError(t, err)
+	result.AssertExitCode(t, 2)
+	require.Empty(t, result.Stdout)
+	require.Equal(t, "validation", gjson.Get(result.Stderr, "error.type").String(), result.Stderr)
+	require.Equal(t, "invalid_argument", gjson.Get(result.Stderr, "error.subtype").String(), result.Stderr)
+	require.Equal(t, "--node-token", gjson.Get(result.Stderr, "error.param").String(), result.Stderr)
+	require.Contains(t, gjson.Get(result.Stderr, "error.hint").String(), "complete token", result.Stderr)
+}