diff --git a/internal/shortcut/smart/chat_messages.go b/internal/shortcut/smart/chat_messages.go
index 22490df8..3348c822 100644
--- a/internal/shortcut/smart/chat_messages.go
+++ b/internal/shortcut/smart/chat_messages.go
@@ -240,6 +240,14 @@ func executeChatMessages(rt *shortcut.RuntimeContext) error {
 		payload, rawItems, err = collectOneChatMessagesPage(rt, request)
 	}
 	if err != nil {
+		// Full-page collection returns its failure ledger together with a
+		// non-zero error. Publish that ledger for diagnosis, but stop before
+		// resource downloads or a requested export can look successful.
+		if payload != nil {
+			if outputErr := rt.Output(payload); outputErr != nil {
+				return outputErr
+			}
+		}
 		return err
 	}
 	if rt.Bool("download-resources") {
@@ -418,6 +426,29 @@ func collectAllChatMessages(rt *shortcut.RuntimeContext, request chatMessagesReq
 	if hasMore && nextPage != nil {
 		payload["nextPage"] = nextPage
 	}
+	if len(failures) > 0 {
+		failureStage := "pagination"
+		if stopReason == "read_failure" {
+			failureStage = "read"
+		}
+		return payload, allItems, apperrors.NewAPI(
+			fmt.Sprintf("全量消息读取未完成：%d 页成功，%d 个页面失败", pagesFetched, len(failures)),
+			apperrors.WithOperation("chat/"+request.tool),
+			apperrors.WithReason("chat_messages_incomplete"),
+			apperrors.WithOrigin("mcp_gateway"),
+			apperrors.WithFailureStage(failureStage),
+			apperrors.WithExecutionStarted(true),
+			apperrors.WithRetryable(true),
+			apperrors.WithHint("请根据 failures 和 nextPage 重试；失败 ledger 不会写入 --output 文件"),
+			apperrors.WithDetails(map[string]any{
+				"pagesFetched": pagesFetched,
+				"failedCount":  len(failures),
+				"failures":     failures,
+				"partial":      len(results) > 0,
+				"stopReason":   stopReason,
+			}),
+		)
+	}
 	return payload, allItems, nil
 }
 
diff --git a/internal/shortcut/smart/chat_messages_test.go b/internal/shortcut/smart/chat_messages_test.go
index d6bb5afe..3200faca 100644
--- a/internal/shortcut/smart/chat_messages_test.go
+++ b/internal/shortcut/smart/chat_messages_test.go
@@ -17,9 +17,11 @@ import (
 	"bytes"
 	"context"
 	"encoding/json"
+	stderrors "errors"
 	"os"
 	"testing"
 
+	apperrors "github.com/DingTalk-Real-AI/dingtalk-workspace-cli/internal/errors"
 	"github.com/DingTalk-Real-AI/dingtalk-workspace-cli/internal/helpers"
 	"github.com/DingTalk-Real-AI/dingtalk-workspace-cli/pkg/edition"
 )
@@ -99,6 +101,13 @@ func TestCrossPlatformCoverageProjectChatMessageExpandsForwarded(t *testing.T) {
 type chatMessagesPagingCaller struct {
 	responses []string
 	args      []map[string]any
+	failAt    int
+}
+
+type chatMessagesFailWriter struct{}
+
+func (chatMessagesFailWriter) Write([]byte) (int, error) {
+	return 0, stderrors.New("fixture output failure")
 }
 
 func (c *chatMessagesPagingCaller) CallTool(
@@ -112,6 +121,9 @@ func (c *chatMessagesPagingCaller) CallTool(
 	}
 	c.args = append(c.args, copied)
 	index := len(c.args) - 1
+	if c.failAt > 0 && len(c.args) == c.failAt {
+		return nil, stderrors.New("fixture read failure")
+	}
 	if index >= len(c.responses) {
 		index = len(c.responses) - 1
 	}
@@ -200,8 +212,12 @@ func TestCrossPlatformCoverageChatMessagesPageAllFailsClosedOnStalledBoundary(t
 	var output bytes.Buffer
 	root.SetOut(&output)
 	root.SetArgs([]string{"chat", "+chat-messages", "--conversation-id", "cid", "--page-all"})
-	if err := root.Execute(); err != nil {
-		t.Fatal(err)
+	err := root.Execute()
+	var typed *apperrors.Error
+	if !stderrors.As(err, &typed) || typed.Category != apperrors.CategoryAPI ||
+		typed.Reason != "chat_messages_incomplete" || !typed.Retryable ||
+		typed.ExecutionStarted == nil || !*typed.ExecutionStarted {
+		t.Fatalf("error = %#v", err)
 	}
 	var payload map[string]any
 	if err := json.Unmarshal(output.Bytes(), &payload); err != nil {
@@ -213,6 +229,52 @@ func TestCrossPlatformCoverageChatMessagesPageAllFailsClosedOnStalledBoundary(t
 	}
 }
 
+func TestCrossPlatformCoverageChatMessagesFailedPageDoesNotExportPartialLedger(t *testing.T) {
+	t.Chdir(t.TempDir())
+	caller := &chatMessagesPagingCaller{
+		responses: []string{
+			`{"result":{"hasMore":true,"messages":[{"openMessageId":"m1","createTime":"2026-01-01 00:00:00"}]}}`,
+		},
+		failAt: 2,
+	}
+	helpers.InitDeps(caller)
+	root := newPlatformCoverageRoot()
+	var output bytes.Buffer
+	root.SetOut(&output)
+	root.SetArgs([]string{
+		"chat", "+chat-messages", "--conversation-id", "cid", "--page-all",
+		"--output", "exports/partial.json",
+	})
+	err := root.Execute()
+	var typed *apperrors.Error
+	if !stderrors.As(err, &typed) || typed.Reason != "chat_messages_incomplete" {
+		t.Fatalf("error = %#v", err)
+	}
+	if _, statErr := os.Lstat("exports/partial.json"); !os.IsNotExist(statErr) {
+		t.Fatalf("partial export exists: %v", statErr)
+	}
+	var ledger map[string]any
+	if err := json.Unmarshal(output.Bytes(), &ledger); err != nil {
+		t.Fatal(err)
+	}
+	if ledger["partial"] != true || ledger["failedCount"] != float64(1) || ledger["count"] != float64(1) {
+		t.Fatalf("failure ledger = %#v", ledger)
+	}
+}
+
+func TestCrossPlatformCoverageChatMessagesFailureLedgerOutputErrorIsNonZero(t *testing.T) {
+	caller := &chatMessagesPagingCaller{responses: []string{
+		`{"result":{"hasMore":true,"messages":[{"openMessageId":"m1"}]}}`,
+	}}
+	helpers.InitDeps(caller)
+	root := newPlatformCoverageRoot()
+	root.SetOut(chatMessagesFailWriter{})
+	root.SetArgs([]string{"chat", "+chat-messages", "--conversation-id", "cid", "--page-all"})
+	if err := root.Execute(); err == nil || err.Error() != "fixture output failure" {
+		t.Fatalf("error = %v", err)
+	}
+}
+
 func TestCrossPlatformCoverageChatMessagesExportIsAtomicAndNoClobber(t *testing.T) {
 	t.Chdir(t.TempDir())
 	newCaller := func() *chatMessagesPagingCaller {
diff --git a/internal/shortcut/smart/compatibility_coverage_test.go b/internal/shortcut/smart/compatibility_coverage_test.go
index 21f14839..175eab7f 100644
--- a/internal/shortcut/smart/compatibility_coverage_test.go
+++ b/internal/shortcut/smart/compatibility_coverage_test.go
@@ -17,6 +17,7 @@ import (
 	"bytes"
 	"context"
 	"encoding/json"
+	"errors"
 	"io"
 	"reflect"
 	"strings"
@@ -40,10 +41,14 @@ type platformCoverageCaller struct {
 	dry                 bool
 	contactSearchResult string
 	aisearchResult      string
+	failTool            string
 }
 
 func (f *platformCoverageCaller) CallTool(_ context.Context, product, tool string, args map[string]any) (*edition.ToolResult, error) {
 	f.calls = append(f.calls, platformCoverageCall{product: product, tool: tool, args: args})
+	if product+"/"+tool == f.failTool {
+		return nil, errors.New("fixture failure")
+	}
 	text := `{"result":[]}`
 	switch product + "/" + tool {
 	case "contact/search_contact_by_key_word":
@@ -323,6 +328,49 @@ func TestCrossPlatformCoverageBroadcastUsesEnterpriseAliasAndUserIDFallback(t *t
 	}
 }
 
+func TestCrossPlatformCoverageBroadcastRecipientFallbackAndSendFailure(t *testing.T) {
+	t.Run("missing display name falls back to query", func(t *testing.T) {
+		fake := &platformCoverageCaller{
+			dry:            true,
+			aisearchResult: `{"result":[{"userId":"user-no-name"}]}`,
+		}
+		helpers.InitDeps(fake)
+		root := newPlatformCoverageRoot()
+		var output bytes.Buffer
+		root.SetOut(&output)
+		root.SetArgs([]string{
+			"chat", "+broadcast", "--to", "无名用户", "--text", "你好", "--dry-run", "--yes",
+		})
+		if err := root.Execute(); err != nil {
+			t.Fatal(err)
+		}
+		var payload map[string]any
+		if err := json.Unmarshal(output.Bytes(), &payload); err != nil {
+			t.Fatal(err)
+		}
+		actions, _ := payload["actions"].([]any)
+		action, _ := actions[0].(map[string]any)
+		if action["recipient"] != "无名用户" {
+			t.Fatalf("action = %#v", action)
+		}
+	})
+
+	t.Run("send failure remains non-zero", func(t *testing.T) {
+		fake := &platformCoverageCaller{failTool: "chat/send_personal_message"}
+		helpers.InitDeps(fake)
+		root := newPlatformCoverageRoot()
+		root.SetArgs([]string{
+			"chat", "+broadcast", "--to", "张三", "--text", "你好", "--yes",
+		})
+		if err := root.Execute(); err == nil {
+			t.Fatal("send failure unexpectedly succeeded")
+		}
+		if len(fake.calls) != 2 || fake.calls[1].tool != "send_personal_message" {
+			t.Fatalf("calls = %#v", fake.calls)
+		}
+	})
+}
+
 func TestCrossPlatformCoverageCompatibilityAliases(t *testing.T) {
 	tests := []struct {
 		name        string
diff --git a/internal/shortcut/smart/coverage_completion_test.go b/internal/shortcut/smart/coverage_completion_test.go
index 42732d95..fc522911 100644
--- a/internal/shortcut/smart/coverage_completion_test.go
+++ b/internal/shortcut/smart/coverage_completion_test.go
@@ -452,11 +452,11 @@ func TestCrossPlatformCoverageChatMessagesValidationAndFailureBoundaries(t *test
 		wantError bool
 	}{
 		{name: "single read failure", failAt: 1, args: []string{"--group", "cid123456789"}, wantError: true},
-		{name: "all first read failure", failAt: 1, args: []string{"--group", "cid123456789", "--page-all"}},
-		{name: "all later read failure", responses: []string{`{"result":{"messages":[{"openMessageId":"m1","createTime":"2"}],"hasMore":true}}`}, failAt: 2, args: []string{"--group", "cid123456789", "--page-all"}},
-		{name: "missing pagination", responses: []string{`{"result":{"messages":[]}}`}, args: []string{"--group", "cid123456789", "--page-all"}},
-		{name: "empty page with continuation", responses: []string{`{"result":{"messages":[],"hasMore":true}}`}, args: []string{"--group", "cid123456789", "--page-all"}},
-		{name: "result limit without boundary", responses: []string{`{"result":{"messages":[{"openMessageId":"m1"},{"openMessageId":"m2"}],"hasMore":true}}`}, args: []string{"--group", "cid123456789", "--page-all", "--max-results", "1"}},
+		{name: "all first read failure", failAt: 1, args: []string{"--group", "cid123456789", "--page-all"}, wantError: true},
+		{name: "all later read failure", responses: []string{`{"result":{"messages":[{"openMessageId":"m1","createTime":"2"}],"hasMore":true}}`}, failAt: 2, args: []string{"--group", "cid123456789", "--page-all"}, wantError: true},
+		{name: "missing pagination", responses: []string{`{"result":{"messages":[]}}`}, args: []string{"--group", "cid123456789", "--page-all"}, wantError: true},
+		{name: "empty page with continuation", responses: []string{`{"result":{"messages":[],"hasMore":true}}`}, args: []string{"--group", "cid123456789", "--page-all"}, wantError: true},
+		{name: "result limit without boundary", responses: []string{`{"result":{"messages":[{"openMessageId":"m1"},{"openMessageId":"m2"}],"hasMore":true}}`}, args: []string{"--group", "cid123456789", "--page-all", "--max-results", "1"}, wantError: true},
 		{name: "result limit with boundary", responses: []string{`{"result":{"messages":[{"openMessageId":"m1","createTime":"2"},{"openMessageId":"m2","createTime":"1"}],"hasMore":true}}`}, args: []string{"--group", "cid123456789", "--page-all", "--max-results", "1"}},
 	} {
 		t.Run(tc.name, func(t *testing.T) {
diff --git a/internal/shortcut/targetresolver/resolver.go b/internal/shortcut/targetresolver/resolver.go
index f338ebda..a4c6bd21 100644
--- a/internal/shortcut/targetresolver/resolver.go
+++ b/internal/shortcut/targetresolver/resolver.go
@@ -724,6 +724,14 @@ func resolutionDetails(err error) (map[string]any, bool) {
 	if !stderrors.As(err, &typed) || typed.Details["type"] != "resolution" {
 		return nil, false
 	}
+	switch typed.Reason {
+	case "resolution_not_found", "resolution_ambiguous":
+		// These are client-side disambiguation outcomes and may be combined
+		// into one batch response. Incomplete/API/auth failures must retain
+		// their original category and retryability and stop immediately.
+	default:
+		return nil, false
+	}
 	return typed.Details, true
 }
 
diff --git a/internal/shortcut/targetresolver/resolver_test.go b/internal/shortcut/targetresolver/resolver_test.go
index f635f4d8..a975a7ae 100644
--- a/internal/shortcut/targetresolver/resolver_test.go
+++ b/internal/shortcut/targetresolver/resolver_test.go
@@ -537,6 +537,35 @@ func TestCrossPlatformCoverageResolverCompletionBranches(t *testing.T) {
 		if _, err := ResolveChats(reader, []string{"upstream"}); err == nil {
 			t.Fatal("batch chat transport error missing")
 		}
+
+		assertIncomplete := func(label string, err error) {
+			t.Helper()
+			var typed *apperrors.Error
+			if !stderrors.As(err, &typed) || typed.Category != apperrors.CategoryAPI ||
+				typed.Reason != "resolution_incomplete" || !typed.Retryable {
+				t.Fatalf("%s error = %#v", label, err)
+			}
+		}
+		fullUsers := make([]any, userSearchDefaultResultLimit)
+		for i := range fullUsers {
+			fullUsers[i] = map[string]any{"userId": fmt.Sprintf("u%d", i), "name": "张三"}
+		}
+		_, err := ResolveUsers(resolverReaderFunc(func(string, string, map[string]any) (map[string]any, error) {
+			return map[string]any{"result": fullUsers}, nil
+		}), []string{"张三", "李四"}, IdentityUserID)
+		assertIncomplete("batch user", err)
+
+		fullChats := make([]any, chatResolutionPageSize)
+		for i := range fullChats {
+			fullChats[i] = map[string]any{
+				"openConversationId": fmt.Sprintf("cid-%d", i),
+				"title":              "项目群",
+			}
+		}
+		_, err = ResolveChats(resolverReaderFunc(func(string, string, map[string]any) (map[string]any, error) {
+			return map[string]any{"result": fullChats}, nil
+		}), []string{"项目群", "研发群"})
+		assertIncomplete("batch chat", err)
 	})
 
 	t.Run("public projections and internal helpers", func(t *testing.T) {