diff --git a/apps/backend/internal/github/client.go b/apps/backend/internal/github/client.go
index f7c0724cef..94e0dddb36 100644
--- a/apps/backend/internal/github/client.go
+++ b/apps/backend/internal/github/client.go
@@ -2,6 +2,7 @@ package github
 
 import (
 	"context"
+	"fmt"
 	"time"
 )
 
@@ -13,6 +14,33 @@ type RateLimitFetcher interface {
 	FetchRateLimit(ctx context.Context) error
 }
 
+type MergeOutcome string
+
+const (
+	MergeOutcomeMerged MergeOutcome = "merged"
+	MergeOutcomeQueued MergeOutcome = "queued"
+	mergeStatusFailed               = "failed"
+)
+
+type mergeAsyncResponse struct {
+	Status  string `json:"status"`
+	UUID    string `json:"uuid"`
+	Message string `json:"message"`
+}
+
+func normalizeMergeOutcome(status string) (MergeOutcome, error) {
+	switch status {
+	case string(MergeOutcomeMerged):
+		return MergeOutcomeMerged, nil
+	case "enqueued", "queued":
+		return MergeOutcomeQueued, nil
+	case mergeStatusFailed:
+		return "", fmt.Errorf("GitHub rejected merge: %s", status)
+	default:
+		return "", fmt.Errorf("unexpected GitHub merge status %q", status)
+	}
+}
+
 // Client defines the interface for interacting with the GitHub API.
 type Client interface {
 	// IsAuthenticated checks if the client is authenticated with GitHub.
@@ -91,8 +119,8 @@ type Client interface {
 	// RequestReviewers requests reviews from GitHub users on a pull request.
 	RequestReviewers(ctx context.Context, owner, repo string, number int, reviewers []string) error
 
-	// MergePR merges a pull request. mergeMethod is one of "merge", "squash", "rebase".
-	MergePR(ctx context.Context, owner, repo string, number int, mergeMethod string) error
+	// MergePR merges a pull request immediately or queues it according to GitHub policy.
+	MergePR(ctx context.Context, owner, repo string, number int, mergeMethod string) (MergeOutcome, error)
 
 	// ListRepoBranches lists branches for a repository.
 	ListRepoBranches(ctx context.Context, owner, repo string) ([]RepoBranch, error)
diff --git a/apps/backend/internal/github/controller.go b/apps/backend/internal/github/controller.go
index 15cd83398b..b65db9ccd7 100644
--- a/apps/backend/internal/github/controller.go
+++ b/apps/backend/internal/github/controller.go
@@ -759,7 +759,7 @@ func (c *Controller) httpMergePR(ctx *gin.Context) {
 		ctx.JSON(http.StatusBadRequest, gin.H{"error": "merge_method must be merge, squash, or rebase"})
 		return
 	}
-	principal, err := c.service.MergePRForWorkspace(
+	principal, outcome, err := c.service.MergePRForWorkspace(
 		ctx.Request.Context(), ctx.Query("workspace_id"), currentGitHubUserID(ctx),
 		owner, repo, number, req.MergeMethod,
 	)
@@ -771,6 +771,8 @@ func (c *Controller) httpMergePR(ctx *gin.Context) {
 		var apiErr *GitHubAPIError
 		if errors.As(err, &apiErr) {
 			switch apiErr.StatusCode {
+			case http.StatusBadRequest:
+				status = http.StatusBadRequest
 			case http.StatusMethodNotAllowed, http.StatusConflict:
 				status = http.StatusConflict
 			case http.StatusUnauthorized:
@@ -784,7 +786,7 @@ func (c *Controller) httpMergePR(ctx *gin.Context) {
 		ctx.JSON(status, gin.H{"error": err.Error()})
 		return
 	}
-	ctx.JSON(http.StatusOK, gin.H{"merged": true, "principal": principal})
+	ctx.JSON(http.StatusOK, gin.H{"status": outcome, "principal": principal})
 }
 
 func (c *Controller) httpListPRWatches(ctx *gin.Context) {
diff --git a/apps/backend/internal/github/controller_test.go b/apps/backend/internal/github/controller_test.go
index 235db48192..a4258ab4f5 100644
--- a/apps/backend/internal/github/controller_test.go
+++ b/apps/backend/internal/github/controller_test.go
@@ -52,7 +52,7 @@ func TestValidGitHubCallbackState(t *testing.T) {
 type stubClient struct {
 	getPRFunc             func(ctx context.Context, owner, repo string, number int) (*PR, error)
 	getIssueFunc          func(ctx context.Context, owner, repo string, number int) (*Issue, error)
-	mergePRFn             func(ctx context.Context, owner, repo string, number int, mergeMethod string) error
+	mergePRFn             func(ctx context.Context, owner, repo string, number int, mergeMethod string) (MergeOutcome, error)
 	getRepoMergeMethodsFn func() (RepoMergeMethods, error)
 	requestReviewersFn    func(ctx context.Context, owner, repo string, number int, reviewers []string) error
 }
@@ -132,11 +132,11 @@ func (s *stubClient) RequestReviewers(ctx context.Context, owner, repo string, n
 	}
 	return nil
 }
-func (s *stubClient) MergePR(ctx context.Context, owner, repo string, number int, mergeMethod string) error {
+func (s *stubClient) MergePR(ctx context.Context, owner, repo string, number int, mergeMethod string) (MergeOutcome, error) {
 	if s.mergePRFn != nil {
 		return s.mergePRFn(ctx, owner, repo, number, mergeMethod)
 	}
-	return nil
+	return MergeOutcomeMerged, nil
 }
 func (s *stubClient) ListRepoBranches(context.Context, string, string) ([]RepoBranch, error) {
 	return nil, nil
@@ -1780,12 +1780,12 @@ func TestHttpMergePR_Success(t *testing.T) {
 		mergeMethod string
 	}
 	sc := &stubClient{
-		mergePRFn: func(_ context.Context, owner, repo string, number int, mergeMethod string) error {
+		mergePRFn: func(_ context.Context, owner, repo string, number int, mergeMethod string) (MergeOutcome, error) {
 			called.owner = owner
 			called.repo = repo
 			called.number = number
 			called.mergeMethod = mergeMethod
-			return nil
+			return MergeOutcomeMerged, nil
 		},
 	}
 	router, _ := setupControllerTest(sc)
@@ -1799,11 +1799,39 @@ func TestHttpMergePR_Success(t *testing.T) {
 	if w.Code != http.StatusOK {
 		t.Fatalf("expected 200, got %d: %s", w.Code, w.Body.String())
 	}
+	var response struct {
+		Status MergeOutcome `json:"status"`
+	}
+	if err := json.NewDecoder(w.Body).Decode(&response); err != nil {
+		t.Fatalf("decode response: %v", err)
+	}
+	if response.Status != MergeOutcomeMerged {
+		t.Errorf("status = %q, want merged", response.Status)
+	}
 	if called.owner != "acme" || called.repo != "widget" || called.number != 42 || called.mergeMethod != "squash" {
 		t.Errorf("unexpected MergePR args: %+v", called)
 	}
 }
 
+func TestHttpMergePR_Queued(t *testing.T) {
+	router, _ := setupControllerTest(&stubClient{
+		mergePRFn: func(context.Context, string, string, int, string) (MergeOutcome, error) {
+			return MergeOutcomeQueued, nil
+		},
+	})
+
+	req := httptest.NewRequest(http.MethodPut, "/api/v1/github/prs/acme/widget/42/merge", nil)
+	w := httptest.NewRecorder()
+	router.ServeHTTP(w, req)
+
+	if w.Code != http.StatusOK {
+		t.Fatalf("expected 200, got %d: %s", w.Code, w.Body.String())
+	}
+	if !strings.Contains(w.Body.String(), `"status":"queued"`) {
+		t.Errorf("body = %s, want queued outcome", w.Body.String())
+	}
+}
+
 func TestHttpMergePR_InvalidMethod(t *testing.T) {
 	router, _ := setupControllerTest(&stubClient{})
 
@@ -1824,9 +1852,9 @@ func TestHttpMergePR_EmptyBody_ResolvesToAllowedMethod(t *testing.T) {
 	// should resolve to the first allowed method instead.
 	var gotMethod string
 	sc := &stubClient{
-		mergePRFn: func(_ context.Context, _, _ string, _ int, mergeMethod string) error {
+		mergePRFn: func(_ context.Context, _, _ string, _ int, mergeMethod string) (MergeOutcome, error) {
 			gotMethod = mergeMethod
-			return nil
+			return MergeOutcomeMerged, nil
 		},
 		getRepoMergeMethodsFn: func() (RepoMergeMethods, error) {
 			// Squash-only repo (the case that surfaced this bug).
@@ -1853,9 +1881,9 @@ func TestHttpMergePR_ExplicitMethod_Passthrough(t *testing.T) {
 	var gotMethod string
 	var lookupCalls int
 	sc := &stubClient{
-		mergePRFn: func(_ context.Context, _, _ string, _ int, mergeMethod string) error {
+		mergePRFn: func(_ context.Context, _, _ string, _ int, mergeMethod string) (MergeOutcome, error) {
 			gotMethod = mergeMethod
-			return nil
+			return MergeOutcomeMerged, nil
 		},
 		getRepoMergeMethodsFn: func() (RepoMergeMethods, error) {
 			lookupCalls++
@@ -1887,9 +1915,9 @@ func TestHttpMergePR_EmptyBody_LookupFails_FallsBackToGitHubDefault(t *testing.T
 	// than refusing to merge because of an unrelated lookup failure.
 	var gotMethod string
 	sc := &stubClient{
-		mergePRFn: func(_ context.Context, _, _ string, _ int, mergeMethod string) error {
+		mergePRFn: func(_ context.Context, _, _ string, _ int, mergeMethod string) (MergeOutcome, error) {
 			gotMethod = mergeMethod
-			return nil
+			return MergeOutcomeMerged, nil
 		},
 		getRepoMergeMethodsFn: func() (RepoMergeMethods, error) {
 			return RepoMergeMethods{}, fmt.Errorf("rate limited")
@@ -2402,8 +2430,8 @@ func TestHandleListAccessibleRepos_PreservesAPIErrorStatus(t *testing.T) {
 
 func TestHttpMergePR_Conflict(t *testing.T) {
 	sc := &stubClient{
-		mergePRFn: func(context.Context, string, string, int, string) error {
-			return &GitHubAPIError{StatusCode: http.StatusMethodNotAllowed, Endpoint: "/merge", Body: "not mergeable"}
+		mergePRFn: func(context.Context, string, string, int, string) (MergeOutcome, error) {
+			return "", &GitHubAPIError{StatusCode: http.StatusMethodNotAllowed, Endpoint: "/merge", Body: "not mergeable"}
 		},
 	}
 	router, _ := setupControllerTest(sc)
diff --git a/apps/backend/internal/github/gh_client.go b/apps/backend/internal/github/gh_client.go
index c4d65ef782..bcebbe5360 100644
--- a/apps/backend/internal/github/gh_client.go
+++ b/apps/backend/internal/github/gh_client.go
@@ -901,23 +901,55 @@ func (c *GHClient) RequestReviewers(ctx context.Context, owner, repo string, num
 	return nil
 }
 
-func (c *GHClient) MergePR(ctx context.Context, owner, repo string, number int, mergeMethod string) error {
-	endpoint := fmt.Sprintf("repos/%s/%s/pulls/%d/merge", owner, repo, number)
-	args := []string{"api", endpoint, "-X", "PUT"}
+func (c *GHClient) MergePR(ctx context.Context, owner, repo string, number int, mergeMethod string) (MergeOutcome, error) {
+	endpoint := fmt.Sprintf("repos/%s/%s/pulls/%d/merge-async", owner, repo, number)
+	args := []string{"api", endpoint, "-X", "PUT", "-f", "merge_action=default"}
 	if mergeMethod != "" {
 		args = append(args, "-f", "merge_method="+mergeMethod)
 	}
-	_, err := c.run(ctx, args...)
+	out, err := c.run(ctx, args...)
+	conflictBody := false
 	if err != nil {
 		// Surface status-based errors as GitHubAPIError so httpMergePR can
-		// translate 405 (not mergeable) / 409 (conflict) to HTTP 409 for
-		// gh CLI users too, matching the PAT path.
+		// translate merge rejections for gh CLI users, matching the PAT path.
 		if code, ok := ghMergeStatusCode(err); ok {
-			return &GitHubAPIError{StatusCode: code, Endpoint: endpoint, Body: err.Error()}
+			if code != http.StatusConflict {
+				return "", &GitHubAPIError{StatusCode: code, Endpoint: endpoint, Body: err.Error()}
+			}
+			out = err.Error()
+			conflictBody = true
+		} else {
+			return "", fmt.Errorf("merge PR #%d: %w", number, err)
 		}
-		return fmt.Errorf("merge PR #%d: %w", number, err)
 	}
-	return nil
+	var response mergeAsyncResponse
+	jsonBody := out
+	if start := strings.Index(jsonBody, "{"); start >= 0 {
+		if end := strings.LastIndex(jsonBody, "}"); end >= start {
+			jsonBody = jsonBody[start : end+1]
+		}
+	} else if conflictBody {
+		return "", &GitHubAPIError{StatusCode: http.StatusConflict, Endpoint: endpoint, Body: out}
+	}
+	if unmarshalErr := json.Unmarshal([]byte(jsonBody), &response); unmarshalErr != nil {
+		return "", fmt.Errorf("decode GitHub merge response: %w", unmarshalErr)
+	}
+	for response.Status == "pending" {
+		if response.UUID == "" {
+			return "", fmt.Errorf("GitHub merge response is pending without a UUID")
+		}
+		result, runErr := c.run(ctx, "api", endpoint+"/"+response.UUID)
+		if runErr != nil {
+			return "", fmt.Errorf("poll merge PR #%d: %w", number, runErr)
+		}
+		if unmarshalErr := json.Unmarshal([]byte(result), &response); unmarshalErr != nil {
+			return "", fmt.Errorf("decode GitHub merge response: %w", unmarshalErr)
+		}
+	}
+	if response.Status == mergeStatusFailed {
+		return "", fmt.Errorf("GitHub rejected merge: %s", response.Message)
+	}
+	return normalizeMergeOutcome(response.Status)
 }
 
 // ghMergeStatusCode extracts the HTTP status code from a gh CLI merge error.
@@ -935,6 +967,10 @@ func ghMergeStatusCode(err error) (int, bool) {
 		return http.StatusForbidden, true
 	}
 	s := err.Error()
+	if strings.Contains(s, "HTTP 400") || strings.Contains(s, "status: 400") ||
+		strings.Contains(s, "400 Bad Request") {
+		return http.StatusBadRequest, true
+	}
 	if strings.Contains(s, "HTTP 405") || strings.Contains(s, "status: 405") ||
 		strings.Contains(s, "405 Method Not Allowed") {
 		return http.StatusMethodNotAllowed, true
diff --git a/apps/backend/internal/github/gh_client_commands_test.go b/apps/backend/internal/github/gh_client_commands_test.go
index f8f5581882..3119c8cc5e 100644
--- a/apps/backend/internal/github/gh_client_commands_test.go
+++ b/apps/backend/internal/github/gh_client_commands_test.go
@@ -530,21 +530,23 @@ func TestGHClient_SubmitReview(t *testing.T) {
 
 func TestGHClient_MergePR(t *testing.T) {
 	t.Run("sends the merge method", func(t *testing.T) {
-		calls := newFakeGH(t, ghResponse{Prefix: "api repos/", Stdout: `{"merged":true}`})
-		if err := NewGHClient().MergePR(context.Background(), "acme", "widget", 42, "squash"); err != nil {
+		calls := newFakeGH(t, ghResponse{Prefix: "api repos/", Stdout: `{"status":"merged"}`})
+		if _, err := NewGHClient().MergePR(context.Background(), "acme", "widget", 42, "squash"); err != nil {
 			t.Fatalf("MergePR: %v", err)
 		}
 		assertGHArgv(t, calls(t), 0, []string{
-			"api", "repos/acme/widget/pulls/42/merge", "-X", "PUT", "-f", "merge_method=squash",
+			"api", "repos/acme/widget/pulls/42/merge-async", "-X", "PUT",
+			"-f", "merge_action=default", "-f", "merge_method=squash",
 		})
 	})
 	t.Run("omits the merge method when unset", func(t *testing.T) {
-		calls := newFakeGH(t, ghResponse{Prefix: "api repos/", Stdout: `{"merged":true}`})
-		if err := NewGHClient().MergePR(context.Background(), "acme", "widget", 42, ""); err != nil {
+		calls := newFakeGH(t, ghResponse{Prefix: "api repos/", Stdout: `{"status":"merged"}`})
+		if _, err := NewGHClient().MergePR(context.Background(), "acme", "widget", 42, ""); err != nil {
 			t.Fatalf("MergePR: %v", err)
 		}
 		assertGHArgv(t, calls(t), 0, []string{
-			"api", "repos/acme/widget/pulls/42/merge", "-X", "PUT",
+			"api", "repos/acme/widget/pulls/42/merge-async", "-X", "PUT",
+			"-f", "merge_action=default",
 		})
 	})
 }
@@ -557,14 +559,14 @@ func TestGHClient_MergePR_StatusIsRecoverable(t *testing.T) {
 		want   int
 	}{
 		{"gh: HTTP 405: Method Not Allowed", http.StatusMethodNotAllowed},
-		{"gh: HTTP 409: Conflict", http.StatusConflict},
 		{"gh: HTTP 404: Not Found", http.StatusNotFound},
 		{"gh: HTTP 403: Forbidden", http.StatusForbidden},
+		{"gh: merge conflict (HTTP 409)", http.StatusConflict},
 	}
 	for _, tc := range cases {
 		t.Run(http.StatusText(tc.want), func(t *testing.T) {
 			newFakeGH(t, ghResponse{Prefix: "api repos/", Stderr: tc.stderr, Exit: 1})
-			err := NewGHClient().MergePR(context.Background(), "acme", "widget", 42, "merge")
+			_, err := NewGHClient().MergePR(context.Background(), "acme", "widget", 42, "merge")
 			var apiErr *GitHubAPIError
 			if !errors.As(err, &apiErr) {
 				t.Fatalf("err = %v, want a *GitHubAPIError", err)
@@ -572,16 +574,27 @@ func TestGHClient_MergePR_StatusIsRecoverable(t *testing.T) {
 			if apiErr.StatusCode != tc.want {
 				t.Errorf("status = %d, want %d", apiErr.StatusCode, tc.want)
 			}
-			if apiErr.Endpoint != "repos/acme/widget/pulls/42/merge" {
+			if apiErr.Endpoint != "repos/acme/widget/pulls/42/merge-async" {
 				t.Errorf("endpoint = %q", apiErr.Endpoint)
 			}
 		})
 	}
 }
 
+func TestGHClient_MergePR_AlreadyQueuedIsIdempotent(t *testing.T) {
+	newFakeGH(t,
+		ghResponse{Prefix: "api repos/acme/widget/pulls/42/merge-async/request-1", Stdout: `{"status":"enqueued","uuid":"request-1"}`},
+		ghResponse{Prefix: "api repos/", Stderr: `{"status":"pending","uuid":"request-1"} gh: HTTP 409`, Exit: 1},
+	)
+	outcome, err := NewGHClient().MergePR(context.Background(), "acme", "widget", 42, "squash")
+	if err != nil || outcome != MergeOutcomeQueued {
+		t.Fatalf("outcome = %q, err = %v, want queued", outcome, err)
+	}
+}
+
 func TestGHClient_MergePR_UnmappedStatusFallsBackToAPlainWrap(t *testing.T) {
 	newFakeGH(t, ghResponse{Prefix: "api repos/", Stderr: "gh: HTTP 500: server error", Exit: 1})
-	err := NewGHClient().MergePR(context.Background(), "acme", "widget", 42, "merge")
+	_, err := NewGHClient().MergePR(context.Background(), "acme", "widget", 42, "merge")
 	if err == nil || !strings.Contains(err.Error(), "merge PR #42") {
 		t.Fatalf("err = %v, want a plain wrap naming the PR", err)
 	}
diff --git a/apps/backend/internal/github/gh_client_test.go b/apps/backend/internal/github/gh_client_test.go
index 2f962a8b15..a7f96a3788 100644
--- a/apps/backend/internal/github/gh_client_test.go
+++ b/apps/backend/internal/github/gh_client_test.go
@@ -69,6 +69,7 @@ func TestGhMergeStatusCode(t *testing.T) {
 		{"404 Not Found phrase", errors.New("404 Not Found"), true, 404},
 		{"status 404", errors.New("request failed (status: 404)"), true, 404},
 		{"HTTP 403", errors.New("HTTP 403: Forbidden"), true, 403},
+		{"HTTP 400", errors.New("HTTP 400: Bad Request"), true, 400},
 		{"HTTP 405", errors.New("gh: HTTP 405: Method Not Allowed"), true, 405},
 		{"status 405", errors.New("status: 405"), true, 405},
 		{"405 phrase", errors.New("405 Method Not Allowed"), true, 405},
diff --git a/apps/backend/internal/github/mock_client.go b/apps/backend/internal/github/mock_client.go
index 86c8006c4c..3852ac249e 100644
--- a/apps/backend/internal/github/mock_client.go
+++ b/apps/backend/internal/github/mock_client.go
@@ -115,6 +115,7 @@ type MockClient struct {
 	submittedReviews  []submittedReview
 	requestedReviews  []requestedReviewers
 	mergedPRs         []mergedPR
+	mergeOutcomes     map[prKey]MergeOutcome
 	mergeMethods      map[repoKey]RepoMergeMethods
 	repositoryDetails map[repoKey]*GitHubRepository
 	gists             map[string]mockGist
@@ -167,6 +168,7 @@ func NewMockClient() *MockClient {
 		prCommitsFailures: make(map[prKey]int),
 		commitDetails:     make(map[commitDetailKey]PRCommitDetail),
 		mergeMethods:      make(map[repoKey]RepoMergeMethods),
+		mergeOutcomes:     make(map[prKey]MergeOutcome),
 		repositoryDetails: make(map[repoKey]*GitHubRepository),
 		gists:             make(map[string]mockGist),
 		repoFiles:         make(map[repoKey][]repoFileEntry),
@@ -748,19 +750,32 @@ func (m *MockClient) SetRepoMergeMethods(owner, repo string, methods RepoMergeMe
 	m.mergeMethods[repoKey{owner, repo}] = methods
 }
 
-func (m *MockClient) MergePR(_ context.Context, owner, repo string, number int, mergeMethod string) error {
+func (m *MockClient) MergePR(_ context.Context, owner, repo string, number int, mergeMethod string) (MergeOutcome, error) {
 	m.mu.Lock()
 	defer m.mu.Unlock()
 	m.mergedPRs = append(m.mergedPRs, mergedPR{
 		Owner: owner, Repo: repo, Number: number, MergeMethod: mergeMethod,
 	})
+	outcome := m.mergeOutcomes[prKey{owner, repo, number}]
+	if outcome == "" {
+		outcome = MergeOutcomeMerged
+	}
+	if outcome == MergeOutcomeQueued {
+		return outcome, nil
+	}
 	now := time.Now().UTC()
 	if pr, ok := m.prs[prKey{owner, repo, number}]; ok {
 		pr.State = "merged"
 		pr.MergedAt = &now
 		pr.Mergeable = false
 	}
-	return nil
+	return outcome, nil
+}
+
+func (m *MockClient) SetMergeOutcome(owner, repo string, number int, outcome MergeOutcome) {
+	m.mu.Lock()
+	defer m.mu.Unlock()
+	m.mergeOutcomes[prKey{owner, repo, number}] = outcome
 }
 
 func (m *MockClient) CreateGist(_ context.Context, in CreateGistInput) (*GistResponse, error) {
@@ -1034,6 +1049,7 @@ func (m *MockClient) Reset() {
 	m.submittedReviews = nil
 	m.requestedReviews = nil
 	m.mergedPRs = nil
+	m.mergeOutcomes = make(map[prKey]MergeOutcome)
 	m.mergeMethods = make(map[repoKey]RepoMergeMethods)
 	m.gists = make(map[string]mockGist)
 	m.deletedGists = nil
diff --git a/apps/backend/internal/github/mock_controller.go b/apps/backend/internal/github/mock_controller.go
index 1416b1ad06..c84bfaac4b 100644
--- a/apps/backend/internal/github/mock_controller.go
+++ b/apps/backend/internal/github/mock_controller.go
@@ -51,6 +51,7 @@ func (c *MockController) RegisterRoutes(router *gin.Engine) {
 	api.POST("/files", c.addPRFiles)
 	api.POST("/commits", c.addPRCommits)
 	api.PUT("/pr-commits-failures", c.setPRCommitsFailures)
+	api.PUT("/merge-outcomes", c.setMergeOutcome)
 	api.POST("/commit-details", c.addPRCommitDetail)
 	api.POST("/branches", c.addBranches)
 	api.POST("/repo-files", c.addRepoFiles)
@@ -518,6 +519,23 @@ func (c *MockController) setPRCommitsFailures(ctx *gin.Context) {
 	ctx.JSON(http.StatusOK, gin.H{"failures": req.Failures})
 }
 
+func (c *MockController) setMergeOutcome(ctx *gin.Context) {
+	var req struct {
+		Owner   string       `json:"owner"`
+		Repo    string       `json:"repo"`
+		Number  int          `json:"number"`
+		Outcome MergeOutcome `json:"outcome"`
+	}
+	if err := ctx.ShouldBindJSON(&req); err != nil || strings.TrimSpace(req.Owner) == "" ||
+		strings.TrimSpace(req.Repo) == "" || req.Number <= 0 ||
+		(req.Outcome != MergeOutcomeMerged && req.Outcome != MergeOutcomeQueued) {
+		respondInvalidPayload(ctx)
+		return
+	}
+	c.mock.SetMergeOutcome(req.Owner, req.Repo, req.Number, req.Outcome)
+	ctx.JSON(http.StatusOK, gin.H{"outcome": req.Outcome})
+}
+
 func (c *MockController) addPRCommitDetail(ctx *gin.Context) {
 	var req struct {
 		Owner  string         `json:"owner"`
diff --git a/apps/backend/internal/github/noop_client.go b/apps/backend/internal/github/noop_client.go
index b857aa30b9..79bb8bea24 100644
--- a/apps/backend/internal/github/noop_client.go
+++ b/apps/backend/internal/github/noop_client.go
@@ -125,8 +125,8 @@ func (c *NoopClient) RequestReviewers(context.Context, string, string, int, []st
 	return ErrNoClient
 }
 
-func (c *NoopClient) MergePR(context.Context, string, string, int, string) error {
-	return ErrNoClient
+func (c *NoopClient) MergePR(context.Context, string, string, int, string) (MergeOutcome, error) {
+	return "", ErrNoClient
 }
 
 func (c *NoopClient) ListIssues(context.Context, string, string) ([]*Issue, error) {
diff --git a/apps/backend/internal/github/pat_client.go b/apps/backend/internal/github/pat_client.go
index 96ce26acd9..2d9ff57ee8 100644
--- a/apps/backend/internal/github/pat_client.go
+++ b/apps/backend/internal/github/pat_client.go
@@ -728,17 +728,36 @@ func (c *PATClient) RequestReviewers(ctx context.Context, owner, repo string, nu
 	return c.post(ctx, endpoint, jsonBody)
 }
 
-func (c *PATClient) MergePR(ctx context.Context, owner, repo string, number int, mergeMethod string) error {
-	endpoint := fmt.Sprintf("/repos/%s/%s/pulls/%d/merge", owner, repo, number)
-	payload := map[string]string{}
+func (c *PATClient) MergePR(ctx context.Context, owner, repo string, number int, mergeMethod string) (MergeOutcome, error) {
+	endpoint := fmt.Sprintf("/repos/%s/%s/pulls/%d/merge-async", owner, repo, number)
+	payload := map[string]string{"merge_action": "default"}
 	if mergeMethod != "" {
 		payload["merge_method"] = mergeMethod
 	}
 	jsonBody, err := json.Marshal(payload)
 	if err != nil {
-		return fmt.Errorf("marshal merge payload: %w", err)
+		return "", fmt.Errorf("marshal merge payload: %w", err)
 	}
-	return c.put(ctx, endpoint, jsonBody)
+	var response mergeAsyncResponse
+	if err := c.putJSON(ctx, endpoint, jsonBody, &response); err != nil {
+		var apiErr *GitHubAPIError
+		if !errors.As(err, &apiErr) || apiErr.StatusCode != http.StatusConflict ||
+			json.Unmarshal([]byte(apiErr.Body), &response) != nil || response.UUID == "" {
+			return "", err
+		}
+	}
+	for response.Status == "pending" {
+		if response.UUID == "" {
+			return "", fmt.Errorf("GitHub merge response is pending without a UUID")
+		}
+		if err := c.get(ctx, endpoint+"/"+response.UUID, &response); err != nil {
+			return "", err
+		}
+	}
+	if response.Status == mergeStatusFailed {
+		return "", fmt.Errorf("GitHub rejected merge: %s", response.Message)
+	}
+	return normalizeMergeOutcome(response.Status)
 }
 
 func (c *PATClient) CreateGist(ctx context.Context, in CreateGistInput) (*GistResponse, error) {
@@ -848,8 +867,18 @@ func (c *PATClient) post(ctx context.Context, endpoint string, body []byte) erro
 // postJSON sends a POST and decodes the response body into result.
 // 2xx with no body returns nil; 4xx/5xx returns a *GitHubAPIError.
 func (c *PATClient) postJSON(ctx context.Context, endpoint string, body []byte, result interface{}) error {
+	return c.requestJSON(ctx, http.MethodPost, endpoint, body, result)
+}
+
+func (c *PATClient) requestJSON(
+	ctx context.Context,
+	method string,
+	endpoint string,
+	body []byte,
+	result interface{},
+) error {
 	u := githubAPIBase + endpoint
-	req, err := http.NewRequestWithContext(ctx, http.MethodPost, u, bytes.NewReader(body))
+	req, err := http.NewRequestWithContext(ctx, method, u, bytes.NewReader(body))
 	if err != nil {
 		return err
 	}
@@ -858,7 +887,7 @@ func (c *PATClient) postJSON(ctx context.Context, endpoint string, body []byte,
 
 	resp, err := c.httpClient.Do(req)
 	if err != nil {
-		return fmt.Errorf("request POST %s: %w", endpoint, err)
+		return fmt.Errorf("request %s %s: %w", method, endpoint, err)
 	}
 	defer func() { _ = resp.Body.Close() }()
 	c.recordRateHeaders(resp, endpoint)
@@ -900,27 +929,11 @@ func (c *PATClient) delete(ctx context.Context, endpoint string) error {
 }
 
 func (c *PATClient) put(ctx context.Context, endpoint string, body []byte) error {
-	u := githubAPIBase + endpoint
-	req, err := http.NewRequestWithContext(ctx, http.MethodPut, u, bytes.NewReader(body))
-	if err != nil {
-		return err
-	}
-	c.setGitHubHeaders(req)
-	req.Header.Set("Content-Type", "application/json")
+	return c.putJSON(ctx, endpoint, body, nil)
+}
 
-	resp, err := c.httpClient.Do(req)
-	if err != nil {
-		return fmt.Errorf("request PUT %s: %w", endpoint, err)
-	}
-	defer func() { _ = resp.Body.Close() }()
-	c.recordRateHeaders(resp, endpoint)
-
-	if resp.StatusCode >= 400 {
-		respBody, _ := io.ReadAll(io.LimitReader(resp.Body, 4096))
-		c.maybeMarkRateExhaustedFromBody(endpoint, resp.StatusCode, respBody)
-		return &GitHubAPIError{StatusCode: resp.StatusCode, Endpoint: endpoint, Body: string(respBody)}
-	}
-	return nil
+func (c *PATClient) putJSON(ctx context.Context, endpoint string, body []byte, result interface{}) error {
+	return c.requestJSON(ctx, http.MethodPut, endpoint, body, result)
 }
 
 func (c *PATClient) get(ctx context.Context, endpoint string, result interface{}) error {
diff --git a/apps/backend/internal/github/pat_client_writes_test.go b/apps/backend/internal/github/pat_client_writes_test.go
index a0f247eb8e..1fc83e22f9 100644
--- a/apps/backend/internal/github/pat_client_writes_test.go
+++ b/apps/backend/internal/github/pat_client_writes_test.go
@@ -73,31 +73,31 @@ func TestPATClient_SubmitReview_ErrorIncludesStatusAndBody(t *testing.T) {
 func TestPATClient_MergePR(t *testing.T) {
 	t.Run("sends the merge method", func(t *testing.T) {
 		c, requests := newRecordingPATServerFunc(t, func(*http.Request) (int, string) {
-			return http.StatusOK, `{"merged":true}`
+			return http.StatusOK, `{"status":"merged"}`
 		})
-		if err := c.MergePR(context.Background(), "acme", "widget", 42, "squash"); err != nil {
+		if _, err := c.MergePR(context.Background(), "acme", "widget", 42, "squash"); err != nil {
 			t.Fatalf("MergePR: %v", err)
 		}
 		got := (*requests)[0]
 		if got.Method != http.MethodPut {
 			t.Errorf("method = %q, want PUT", got.Method)
 		}
-		if got.Path != "/repos/acme/widget/pulls/42/merge" {
+		if got.Path != "/repos/acme/widget/pulls/42/merge-async" {
 			t.Errorf("path = %q", got.Path)
 		}
-		if got.Body != `{"merge_method":"squash"}` {
-			t.Errorf("body = %q, want the merge_method payload", got.Body)
+		if got.Body != `{"merge_action":"default","merge_method":"squash"}` {
+			t.Errorf("body = %q, want queue-aware merge payload", got.Body)
 		}
 	})
 	t.Run("omits the merge method when unset", func(t *testing.T) {
 		c, requests := newRecordingPATServerFunc(t, func(*http.Request) (int, string) {
-			return http.StatusOK, `{"merged":true}`
+			return http.StatusOK, `{"status":"merged"}`
 		})
-		if err := c.MergePR(context.Background(), "acme", "widget", 42, ""); err != nil {
+		if _, err := c.MergePR(context.Background(), "acme", "widget", 42, ""); err != nil {
 			t.Fatalf("MergePR: %v", err)
 		}
-		if (*requests)[0].Body != `{}` {
-			t.Errorf("body = %q, want an empty object so GitHub picks its default",
+		if (*requests)[0].Body != `{"merge_action":"default"}` {
+			t.Errorf("body = %q, want GitHub to choose direct or queued merge",
 				(*requests)[0].Body)
 		}
 	})
@@ -111,7 +111,7 @@ func TestPATClient_MergePR_StatusIsRecoverable(t *testing.T) {
 			c, _ := newRecordingPATServerFunc(t, func(*http.Request) (int, string) {
 				return status, `{"message":"Pull Request is not mergeable"}`
 			})
-			err := c.MergePR(context.Background(), "acme", "widget", 42, "merge")
+			_, err := c.MergePR(context.Background(), "acme", "widget", 42, "merge")
 			var apiErr *GitHubAPIError
 			if !errors.As(err, &apiErr) {
 				t.Fatalf("err = %v, want a *GitHubAPIError", err)
@@ -119,7 +119,7 @@ func TestPATClient_MergePR_StatusIsRecoverable(t *testing.T) {
 			if apiErr.StatusCode != status {
 				t.Errorf("status = %d, want %d", apiErr.StatusCode, status)
 			}
-			if apiErr.Endpoint != "/repos/acme/widget/pulls/42/merge" {
+			if apiErr.Endpoint != "/repos/acme/widget/pulls/42/merge-async" {
 				t.Errorf("endpoint = %q", apiErr.Endpoint)
 			}
 			if !strings.Contains(apiErr.Body, "not mergeable") {
@@ -129,6 +129,19 @@ func TestPATClient_MergePR_StatusIsRecoverable(t *testing.T) {
 	}
 }
 
+func TestPATClient_MergePR_AlreadyQueuedIsIdempotent(t *testing.T) {
+	c, _ := newRecordingPATServerFunc(t, func(r *http.Request) (int, string) {
+		if r.Method == http.MethodGet {
+			return http.StatusOK, `{"status":"enqueued","uuid":"request-1"}`
+		}
+		return http.StatusConflict, `{"status":"pending","uuid":"request-1"}`
+	})
+	outcome, err := c.MergePR(context.Background(), "acme", "widget", 42, "squash")
+	if err != nil || outcome != MergeOutcomeQueued {
+		t.Fatalf("outcome = %q, err = %v, want queued", outcome, err)
+	}
+}
+
 func TestPATClient_CreateGist(t *testing.T) {
 	c, requests := newRecordingPATServerFunc(t, func(*http.Request) (int, string) {
 		return http.StatusCreated, `{"id":"abc123","html_url":"https://gist.github.com/abc123",
diff --git a/apps/backend/internal/github/service_automation_auth.go b/apps/backend/internal/github/service_automation_auth.go
index 7997f71cea..a4f5ed4af2 100644
--- a/apps/backend/internal/github/service_automation_auth.go
+++ b/apps/backend/internal/github/service_automation_auth.go
@@ -197,7 +197,8 @@ func (s *Service) MergePRForAutomation(
 	if err := requireGitHubCapability(resolved, CapabilityPullRequestWrite); err != nil {
 		return err
 	}
-	return s.mergePRWithClient(
+	_, err = s.mergePRWithClient(
 		ctx, resolved.Client, resolved.CacheScope, owner, repo, number, mergeMethod,
 	)
+	return err
 }
diff --git a/apps/backend/internal/github/service_pr.go b/apps/backend/internal/github/service_pr.go
index 692528f942..8558684880 100644
--- a/apps/backend/internal/github/service_pr.go
+++ b/apps/backend/internal/github/service_pr.go
@@ -124,9 +124,9 @@ func (s *Service) requestReviewersWithClient(
 // repo allows. The caller is expected to refresh PR feedback after a
 // successful merge — the background poller will catch the merged state on
 // its next pass.
-func (s *Service) MergePR(ctx context.Context, owner, repo string, number int, mergeMethod string) error {
+func (s *Service) MergePR(ctx context.Context, owner, repo string, number int, mergeMethod string) (MergeOutcome, error) {
 	if s.client == nil {
-		return ErrNoClient
+		return "", ErrNoClient
 	}
 	return s.mergePRWithClient(ctx, s.client, "legacy", owner, repo, number, mergeMethod)
 }
@@ -141,20 +141,21 @@ func (s *Service) MergePRForWorkspace(
 	repo string,
 	number int,
 	mergeMethod string,
-) (AuthPrincipal, error) {
+) (AuthPrincipal, MergeOutcome, error) {
 	if err := s.ensureRepositoryInWorkspaceScope(ctx, workspaceID, owner, repo); err != nil {
-		return AuthPrincipal{}, err
+		return AuthPrincipal{}, "", err
 	}
 	resolved, err := s.resolvePersonalWriteClient(ctx, workspaceID, userID, owner, repo)
 	if err != nil {
-		return AuthPrincipal{}, err
+		return AuthPrincipal{}, "", err
 	}
 	if err := requireGitHubCapability(resolved, CapabilityPullRequestWrite); err != nil {
-		return AuthPrincipal{}, err
+		return AuthPrincipal{}, "", err
 	}
-	return resolved.Principal, s.mergePRWithClient(
+	outcome, err := s.mergePRWithClient(
 		ctx, resolved.Client, resolved.CacheScope, owner, repo, number, mergeMethod,
 	)
+	return resolved.Principal, outcome, err
 }
 
 func (s *Service) mergePRWithClient(
@@ -165,7 +166,7 @@ func (s *Service) mergePRWithClient(
 	repo string,
 	number int,
 	mergeMethod string,
-) error {
+) (MergeOutcome, error) {
 	if mergeMethod == "" {
 		// Resolve to an allowed method up-front so we don't rely on GitHub's
 		// "default to merge" behavior, which 405s on repos that disallow
diff --git a/apps/web/components/github/pr-merge-button.test.tsx b/apps/web/components/github/pr-merge-button.test.tsx
new file mode 100644
index 0000000000..e7257a973b
--- /dev/null
+++ b/apps/web/components/github/pr-merge-button.test.tsx
@@ -0,0 +1,118 @@
+import { cleanup, fireEvent, render, screen, waitFor } from "@testing-library/react";
+import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
+import { StateProvider } from "@/components/state-provider";
+import { ToastProvider } from "@/components/toast-provider";
+import type { AppState } from "@/lib/state/store";
+import type { TaskPR } from "@/lib/types/github";
+import { PRMergeButton } from "./pr-merge-button";
+
+const mergePRMock = vi.hoisted(() => vi.fn());
+const MERGE_BUTTON_TEST_ID = "pr-merge-button";
+
+vi.mock("@/lib/api/domains/github-api", () => ({ mergePR: mergePRMock }));
+vi.mock("@/hooks/domains/github/use-github-status", () => ({
+  useGitHubStatus: () => ({ status: null }),
+}));
+vi.mock("@/hooks/domains/github/use-repo-merge-methods", () => ({
+  useRepoMergeMethods: () => null,
+}));
+
+const taskPR = {
+  id: "pr-1",
+  task_id: "task-1",
+  owner: "acme",
+  repo: "site",
+  pr_number: 42,
+  state: "open",
+  review_state: "approved",
+  checks_state: "success",
+  mergeable_state: "blocked",
+  review_count: 2,
+  required_reviews: 2,
+  pending_review_count: 0,
+} as TaskPR;
+
+function renderButton(onMerged = vi.fn()) {
+  const initialState = { workspaces: { activeId: "workspace-1" } } as Partial<AppState>;
+  render(
+    <StateProvider initialState={initialState}>
+      <ToastProvider>
+        <PRMergeButton taskPR={taskPR} onMerged={onMerged} />
+      </ToastProvider>
+    </StateProvider>,
+  );
+  return onMerged;
+}
+
+beforeEach(() => mergePRMock.mockReset());
+afterEach(() => cleanup());
+
+describe("PRMergeButton", () => {
+  it.each([
+    ["merged", "PR merged"],
+    ["queued", "PR added to merge queue"],
+  ] as const)("reports a %s terminal outcome", async (status, message) => {
+    mergePRMock.mockResolvedValue({ status });
+    const onMerged = renderButton();
+
+    fireEvent.click(screen.getByTestId(MERGE_BUTTON_TEST_ID));
+
+    expect(await screen.findByText(message)).not.toBeNull();
+    expect(onMerged).toHaveBeenCalledOnce();
+    expect(screen.queryByTestId(MERGE_BUTTON_TEST_ID)).toBeNull();
+  });
+
+  it("remains retryable after a rejected merge", async () => {
+    mergePRMock.mockRejectedValueOnce(new Error("merge rejected")).mockResolvedValue({
+      status: "queued",
+    });
+    renderButton();
+
+    fireEvent.click(screen.getByTestId(MERGE_BUTTON_TEST_ID));
+    expect(await screen.findByText("merge rejected")).not.toBeNull();
+    fireEvent.click(screen.getByTestId(MERGE_BUTTON_TEST_ID));
+
+    await waitFor(() => expect(mergePRMock).toHaveBeenCalledTimes(2));
+  });
+
+  it("suppresses duplicate clicks while the request is pending", async () => {
+    let resolve!: (value: { status: "queued" }) => void;
+    mergePRMock.mockReturnValue(new Promise((done) => (resolve = done)));
+    renderButton();
+    const button = screen.getByTestId(MERGE_BUTTON_TEST_ID);
+
+    fireEvent.click(button);
+    fireEvent.click(button);
+    expect(mergePRMock).toHaveBeenCalledOnce();
+
+    resolve({ status: "queued" });
+    expect(await screen.findByText("PR added to merge queue")).not.toBeNull();
+  });
+
+  it("does not apply a delayed acceptance to a different pull request", async () => {
+    let resolve!: (value: { status: "queued" }) => void;
+    mergePRMock.mockReturnValue(new Promise((done) => (resolve = done)));
+    const initialState = { workspaces: { activeId: "workspace-1" } } as Partial<AppState>;
+    const view = render(
+      <StateProvider initialState={initialState}>
+        <ToastProvider>
+          <PRMergeButton taskPR={taskPR} />
+        </ToastProvider>
+      </StateProvider>,
+    );
+
+    fireEvent.click(screen.getByTestId(MERGE_BUTTON_TEST_ID));
+    const nextPR = { ...taskPR, id: "pr-2", pr_number: 43 };
+    view.rerender(
+      <StateProvider initialState={initialState}>
+        <ToastProvider>
+          <PRMergeButton taskPR={nextPR} />
+        </ToastProvider>
+      </StateProvider>,
+    );
+    resolve({ status: "queued" });
+
+    await screen.findByText("PR added to merge queue");
+    expect(screen.getByTestId(MERGE_BUTTON_TEST_ID)).not.toBeNull();
+  });
+});
diff --git a/apps/web/components/github/pr-merge-button.tsx b/apps/web/components/github/pr-merge-button.tsx
index c42e342674..a5f8c1d3ec 100644
--- a/apps/web/components/github/pr-merge-button.tsx
+++ b/apps/web/components/github/pr-merge-button.tsx
@@ -1,6 +1,6 @@
 "use client";
 
-import { useEffect, useState } from "react";
+import { useState } from "react";
 import { IconChevronDown, IconGitMerge } from "@tabler/icons-react";
 import { Button } from "@kandev/ui/button";
 import {
@@ -16,7 +16,7 @@ import { useRepoMergeMethods } from "@/hooks/domains/github/use-repo-merge-metho
 import { mergePR } from "@/lib/api/domains/github-api";
 import { getGitHubMutationActor } from "@/lib/github-auth";
 import type { MergeMethod, TaskPR } from "@/lib/types/github";
-import { isPRReadyToMerge } from "./pr-task-icon";
+import { canAttemptPRMerge } from "./pr-task-icon";
 import { useTranslation } from "react-i18next";
 
 function MutationActor({ actor }: { actor: string | null }) {
@@ -89,25 +89,20 @@ export function PRMergeButton({
   const { t } = useTranslation();
   const { toast } = useToast();
   const [merging, setMerging] = useState(false);
-  // After a successful merge we stay hidden until the store catches up to
-  // state="merged" — otherwise the button briefly re-enables during the async
-  // refresh window and a double-click would hit the GitHub API again.
-  const [merged, setMerged] = useState(false);
+  // After GitHub accepts a direct or queued merge, stay hidden until refreshed
+  // provider state catches up so a repeat click cannot submit a second request.
+  const [acceptedFor, setAcceptedFor] = useState<string | null>(null);
   const workspaceId = useAppStore((state) => state.workspaces.activeId);
   const methods = useRepoMergeMethods(workspaceId, taskPR.owner, taskPR.repo);
   const { status } = useGitHubStatus(workspaceId);
   const mutationActor = getGitHubMutationActor(status);
 
-  // If the same component instance ever renders a different PR (e.g. the user
-  // switches the active task while the panel/popover stays mounted), the
-  // sticky `merged` flag from a previous merge would hide the button for an
-  // unrelated, still-mergeable PR. Reset it whenever the underlying PR id
-  // changes.
-  useEffect(() => {
-    setMerged(false);
-  }, [taskPR.id]);
+  // Reset after switching PRs or after GitHub reports an observable lifecycle
+  // or mergeability transition, including a PR ejected from a merge queue.
+  const signature = `${taskPR.id}:${taskPR.state}:${taskPR.mergeable_state}`;
+  const accepted = acceptedFor === signature;
 
-  if (merged || !isPRReadyToMerge(taskPR)) return null;
+  if (accepted || !canAttemptPRMerge(taskPR)) return null;
   // `methods` may be null on first render, on lookup failure, or after the
   // 5-minute cache window. We still render the button — clicking with no
   // method routes through the backend's GetRepoMergeMethods resolver, so
@@ -119,11 +114,23 @@ export function PRMergeButton({
 
   const runMerge = async (method?: MergeMethod) => {
     if (!workspaceId) return;
+    const submittedSignature = signature;
     setMerging(true);
     try {
-      await mergePR(workspaceId, taskPR.owner, taskPR.repo, taskPR.pr_number, method);
-      setMerged(true);
-      toast({ description: t("github:prMerged"), variant: "success" });
+      const result = await mergePR(
+        workspaceId,
+        taskPR.owner,
+        taskPR.repo,
+        taskPR.pr_number,
+        method,
+      );
+      setAcceptedFor(submittedSignature);
+      toast({
+        description: t(
+          result.status === "queued" ? "github:prAddedToMergeQueue" : "github:prMerged",
+        ),
+        variant: "success",
+      });
       onMerged?.();
     } catch (err) {
       toast({
@@ -144,11 +151,21 @@ export function PRMergeButton({
   return (
     <MergeButtonShell
       compact={compact}
-      label={merging ? t("github:merging") : t(mergeLabelKey(primary))}
+      label={
+        merging
+          ? t("github:merging")
+          : t(
+              taskPR.mergeable_state === "blocked"
+                ? "github:mergeMethodDefault"
+                : mergeLabelKey(primary),
+            )
+      }
       disabled={merging}
       actor={mutationActor}
       onPrimaryClick={handlePrimary}
-      extraMethods={allowed.filter((m) => m !== primary)}
+      extraMethods={
+        taskPR.mergeable_state === "blocked" ? [] : allowed.filter((m) => m !== primary)
+      }
       onPickMethod={(m) => void runMerge(m)}
     />
   );
@@ -197,7 +214,7 @@ function MergeButtonShell({
     <Button
       data-testid="pr-merge-button"
       size="sm"
-      className={`cursor-pointer gap-1.5 border-0 bg-green-600 text-white hover:bg-green-700 dark:bg-green-600 dark:hover:bg-green-500 ${showDropdown ? "rounded-r-none" : ""}`}
+      className={`min-h-11 cursor-pointer gap-1.5 border-0 bg-green-600 text-white hover:bg-green-700 dark:bg-green-600 dark:hover:bg-green-500 ${showDropdown ? "rounded-r-none" : ""}`}
       onClick={onPrimaryClick}
       disabled={disabled}
     >
diff --git a/apps/web/components/github/pr-mergeability-row.test.tsx b/apps/web/components/github/pr-mergeability-row.test.tsx
index 45bb32bc7e..c95786bf06 100644
--- a/apps/web/components/github/pr-mergeability-row.test.tsx
+++ b/apps/web/components/github/pr-mergeability-row.test.tsx
@@ -85,17 +85,15 @@ describe("PRMergeabilityRow", () => {
     expect(container.textContent).toContain("Blocked by branch protection");
   });
 
-  it("shows normal branch protection as a neutral waiting state", () => {
-    const { container, queryByTestId } = renderRow(
+  it("keeps an otherwise green blocked PR neutral until GitHub accepts it", () => {
+    const { queryByTestId } = renderRow(
       makePR({
         mergeable_state: "blocked",
         checks_state: "success",
         review_state: "approved",
       }),
     );
-    expect(queryByTestId("pr-blocked-note")).toBeNull();
     expect(queryByTestId("pr-branch-protection-wait-note")).not.toBeNull();
-    expect(container.textContent).toContain("Waiting on branch protection");
   });
 
   it("stays silent for a blocked PR that is only awaiting a requested review", () => {
diff --git a/apps/web/components/github/pr-task-icon.test.ts b/apps/web/components/github/pr-task-icon.test.ts
index 744f97d063..388c03f862 100644
--- a/apps/web/components/github/pr-task-icon.test.ts
+++ b/apps/web/components/github/pr-task-icon.test.ts
@@ -1,5 +1,6 @@
 import { describe, it, expect } from "vitest";
 import {
+  canAttemptPRMerge,
   aggregatePRStatusColor,
   getPRAggregateStatusColor,
   areAllOpenPRsReadyToMerge,
@@ -123,7 +124,7 @@ describe("isPRReadyToMerge", () => {
     ).toBe(false);
   });
 
-  it("is false when mergeable_state is blocked", () => {
+  it("does not claim readiness for GitHub's overloaded blocked state", () => {
     expect(
       isPRReadyToMerge(
         makePR({
@@ -166,6 +167,21 @@ describe("isPRReadyToMerge", () => {
   );
 });
 
+describe("canAttemptPRMerge", () => {
+  it("allows GitHub to decide whether a locally green blocked PR enters a queue", () => {
+    expect(
+      canAttemptPRMerge(
+        makePR({
+          state: "open",
+          review_state: "approved",
+          checks_state: "success",
+          mergeable_state: "blocked",
+        }),
+      ),
+    ).toBe(true);
+  });
+});
+
 describe("isPRReadyToMerge — aggregate counts", () => {
   it("does not treat aggregate all-green counts as merge-ready without success state", () => {
     expect(
@@ -261,9 +277,7 @@ describe("getPRStatusColor", () => {
     expect(getPRStatusColor(pr)).toBe(EMERALD_400);
   });
 
-  it("returns muted for approved+success but mergeable_state blocked (branch protection)", () => {
-    // Branch protection is a normal repository-rule wait after CI passes, not
-    // a warning state.
+  it("keeps an approved blocked PR neutral until GitHub accepts it", () => {
     const pr = makePR({
       state: "open",
       review_state: "approved",
diff --git a/apps/web/components/github/pr-task-icon.tsx b/apps/web/components/github/pr-task-icon.tsx
index 2bc0acd93c..cc207eb32b 100644
--- a/apps/web/components/github/pr-task-icon.tsx
+++ b/apps/web/components/github/pr-task-icon.tsx
@@ -66,6 +66,7 @@ export function isPRReadyToMerge(pr: TaskPR): boolean {
   if (pr.required_reviews != null && pr.review_count < pr.required_reviews) {
     return false;
   }
+  if (pr.pending_review_count > 0) return false;
   if (pr.review_state === "approved") return true;
   // No review process: no requested reviewers and no submitted reviews. GitHub
   // sets mergeable_state=clean when branch protection is satisfied, so this
@@ -73,6 +74,14 @@ export function isPRReadyToMerge(pr: TaskPR): boolean {
   return pr.review_state === "" && pr.pending_review_count === 0;
 }
 
+// GitHub overloads `blocked` for merge queues and unrelated repository rules.
+// Keep readiness clean-only, but allow a neutral merge attempt so GitHub can
+// authoritatively accept the PR into a queue or return the actual blocker.
+export function canAttemptPRMerge(pr: TaskPR): boolean {
+  if (pr.mergeable_state !== "clean" && pr.mergeable_state !== "blocked") return false;
+  return isPRReadyToMerge({ ...pr, mergeable_state: "clean" });
+}
+
 export function isPRDraft(pr: TaskPR): boolean {
   return pr.state === "open" && pr.mergeable_state === "draft";
 }
@@ -96,6 +105,7 @@ export function isPRAwaitingReview(pr: TaskPR): boolean {
 export function isPRWaitingOnBranchProtection(pr: TaskPR): boolean {
   if (pr.state !== "open") return false;
   if (pr.mergeable_state !== "blocked") return false;
+  if (isPRReadyToMerge(pr)) return false;
   if (!hasPRChecksPassedForDisplay(pr)) return false;
   if (pr.review_state === "changes_requested") return false;
   return !isPRAwaitingReview(pr);
diff --git a/apps/web/e2e/helpers/api-client.ts b/apps/web/e2e/helpers/api-client.ts
index 2a96c056dd..86d60a5f9f 100644
--- a/apps/web/e2e/helpers/api-client.ts
+++ b/apps/web/e2e/helpers/api-client.ts
@@ -1387,6 +1387,20 @@ export class ApiClient {
     await this.seedMockGitHubRepositoryAccess(prs);
   }
 
+  async mockGitHubSetMergeOutcome(
+    owner: string,
+    repo: string,
+    number: number,
+    outcome: "merged" | "queued",
+  ): Promise<void> {
+    await this.request("PUT", "/api/v1/github/mock/merge-outcomes", {
+      owner,
+      repo,
+      number,
+      outcome,
+    });
+  }
+
   async mockGitHubAddIssues(issues: MockIssue[]): Promise<void> {
     await this.request("POST", "/api/v1/github/mock/issues", { issues });
     await this.seedMockGitHubRepositoryAccess(issues);
diff --git a/apps/web/e2e/tests/pr/mobile-pr-merge-queue.spec.ts b/apps/web/e2e/tests/pr/mobile-pr-merge-queue.spec.ts
new file mode 100644
index 0000000000..77d64fefc7
--- /dev/null
+++ b/apps/web/e2e/tests/pr/mobile-pr-merge-queue.spec.ts
@@ -0,0 +1,88 @@
+import { test, expect } from "../../fixtures/test-base";
+import { assertNoDocumentHorizontalOverflow, requireBox } from "../../helpers/layout-assertions";
+import { SessionPage } from "../../pages/session-page";
+
+test("adds a GitHub PR to the merge queue from mobile Review", async ({
+  testPage,
+  apiClient,
+  seedData,
+}) => {
+  test.setTimeout(120_000);
+  await testPage.setViewportSize({ width: 393, height: 852 });
+  await apiClient.mockGitHubReset();
+  await apiClient.mockGitHubSetUser("maya-chen");
+  const task = await apiClient.createTaskWithAgent(
+    seedData.workspaceId,
+    "Ship resilient deployment controls",
+    seedData.agentProfileId,
+    {
+      description: "/e2e:simple-message",
+      workflow_id: seedData.workflowId,
+      workflow_step_id: seedData.startStepId,
+      repository_ids: [seedData.repositoryId],
+    },
+  );
+  await apiClient.mockGitHubAddRepos("northstar-labs", [
+    {
+      full_name: "northstar-labs/relay-console",
+      owner: "northstar-labs",
+      name: "relay-console",
+    },
+  ]);
+  await apiClient.mockGitHubAssociateTaskPR({
+    task_id: task.id,
+    owner: "northstar-labs",
+    repo: "relay-console",
+    pr_number: 843,
+    pr_url: "https://github.com/northstar-labs/relay-console/pull/843",
+    pr_title: "Make deployment rollbacks deterministic",
+    head_branch: "feat/resilient-rollbacks",
+    base_branch: "main",
+    author_login: "maya-chen",
+    state: "open",
+    review_state: "approved",
+    checks_state: "success",
+    mergeable_state: "blocked",
+    review_count: 2,
+    pending_review_count: 0,
+    required_reviews: 2,
+    checks_total: 3,
+    checks_passing: 3,
+  });
+  await apiClient.mockGitHubSetMergeOutcome("northstar-labs", "relay-console", 843, "queued");
+
+  await testPage.goto(`/t/${task.id}`);
+  const session = new SessionPage(testPage);
+  await session.waitForLoad();
+  await testPage.reload();
+  await session.waitForLoad();
+  await testPage.getByRole("button", { name: "Review", exact: true }).tap();
+
+  const panel = testPage.getByTestId("mobile-review-panel");
+  await apiClient.mockGitHubAssociateTaskPR({
+    task_id: task.id,
+    owner: "northstar-labs",
+    repo: "relay-console",
+    pr_number: 843,
+    pr_url: "https://github.com/northstar-labs/relay-console/pull/843",
+    pr_title: "Make deployment rollbacks deterministic",
+    head_branch: "feat/resilient-rollbacks",
+    base_branch: "main",
+    author_login: "maya-chen",
+    state: "open",
+    review_state: "approved",
+    checks_state: "success",
+    mergeable_state: "blocked",
+    review_count: 2,
+    pending_review_count: 0,
+    required_reviews: 2,
+    checks_total: 3,
+    checks_passing: 3,
+  });
+  const merge = panel.getByRole("button", { name: "Merge PR" });
+  await expect(merge).toBeVisible({ timeout: 15_000 });
+  expect((await requireBox(merge, "mobile merge queue action")).height).toBeGreaterThanOrEqual(44);
+  await assertNoDocumentHorizontalOverflow(testPage);
+  await merge.tap();
+  await expect(testPage.getByText("PR added to merge queue", { exact: true })).toBeVisible();
+});
diff --git a/apps/web/e2e/tests/pr/pr-merge-queue.spec.ts b/apps/web/e2e/tests/pr/pr-merge-queue.spec.ts
new file mode 100644
index 0000000000..e81c12030b
--- /dev/null
+++ b/apps/web/e2e/tests/pr/pr-merge-queue.spec.ts
@@ -0,0 +1,79 @@
+import { test, expect } from "../../fixtures/test-base";
+import type { ApiClient } from "../../helpers/api-client";
+import { SessionPage } from "../../pages/session-page";
+
+const OWNER = "northstar-labs";
+const REPO = "relay-console";
+const PR_NUMBER = 842;
+
+test("adds an eligible GitHub PR to its merge queue", async ({ testPage, apiClient, seedData }) => {
+  test.setTimeout(120_000);
+  await apiClient.mockGitHubReset();
+  await apiClient.mockGitHubSetUser("maya-chen");
+  const task = await apiClient.createTaskWithAgent(
+    seedData.workspaceId,
+    "Ship resilient deployment controls",
+    seedData.agentProfileId,
+    {
+      description: "/e2e:simple-message",
+      workflow_id: seedData.workflowId,
+      workflow_step_id: seedData.startStepId,
+      repository_ids: [seedData.repositoryId],
+    },
+  );
+  await seedQueuedPR(apiClient, task.id);
+
+  await testPage.goto(`/t/${task.id}`);
+  const session = new SessionPage(testPage);
+  await session.waitForLoad();
+  await testPage.reload();
+  await session.waitForLoad();
+  await seedQueuedPR(apiClient, task.id);
+
+  await session.hoverPRTopbar();
+  const popover = session.prTopbarPopover();
+  const compactMerge = popover.getByRole("button", { name: "Merge PR" });
+  await expect(compactMerge).toBeVisible({ timeout: 15_000 });
+  await session.prDetailTab().click();
+  await seedQueuedPR(apiClient, task.id);
+
+  const detail = testPage.getByTestId("change-request-detail");
+  const merge = detail.getByRole("button", { name: "Merge PR" });
+  await expect(merge).toBeVisible({ timeout: 15_000 });
+  const [response] = await Promise.all([
+    testPage.waitForResponse((candidate) => candidate.url().includes(`/${PR_NUMBER}/merge`)),
+    merge.click(),
+  ]);
+  const responseBody = await response.json();
+  expect(response.ok(), JSON.stringify(responseBody)).toBe(true);
+  expect(responseBody).toMatchObject({ status: "queued" });
+  await expect(testPage.getByText("PR added to merge queue", { exact: true })).toBeVisible();
+  await expect(detail.getByTestId("pr-merge-button")).toHaveCount(0);
+});
+
+async function seedQueuedPR(apiClient: ApiClient, taskId: string) {
+  await apiClient.mockGitHubAddRepos(OWNER, [
+    { full_name: `${OWNER}/${REPO}`, owner: OWNER, name: REPO },
+  ]);
+  await apiClient.mockGitHubAssociateTaskPR({
+    task_id: taskId,
+    owner: OWNER,
+    repo: REPO,
+    pr_number: PR_NUMBER,
+    pr_url: `https://github.com/${OWNER}/${REPO}/pull/${PR_NUMBER}`,
+    pr_title: "Make deployment rollbacks deterministic",
+    head_branch: "feat/resilient-rollbacks",
+    base_branch: "main",
+    author_login: "maya-chen",
+    state: "open",
+    review_state: "approved",
+    checks_state: "success",
+    mergeable_state: "blocked",
+    review_count: 2,
+    pending_review_count: 0,
+    required_reviews: 2,
+    checks_total: 3,
+    checks_passing: 3,
+  });
+  await apiClient.mockGitHubSetMergeOutcome(OWNER, REPO, PR_NUMBER, "queued");
+}
diff --git a/apps/web/lib/api/domains/github-api.test.ts b/apps/web/lib/api/domains/github-api.test.ts
index 983a515abb..5ebbe5a11f 100644
--- a/apps/web/lib/api/domains/github-api.test.ts
+++ b/apps/web/lib/api/domains/github-api.test.ts
@@ -52,12 +52,9 @@ import * as githubAuthApi from "./github-auth-api";
 const workspaceID = "ws/1";
 const appRegistrationID = "registration/one";
 const publicKandevURL = "https://kandev.example";
-
 type FetchInput = Parameters<typeof fetch>[0];
 type FetchInit = Parameters<typeof fetch>[1];
-
 const fetchSpy = vi.fn<(...args: [FetchInput, FetchInit?]) => Promise<Response>>();
-
 beforeEach(() => {
   fetchSpy.mockReset();
   vi.stubGlobal("fetch", fetchSpy);
diff --git a/apps/web/lib/api/domains/github-pr-api.test.ts b/apps/web/lib/api/domains/github-pr-api.test.ts
new file mode 100644
index 0000000000..1516dd8184
--- /dev/null
+++ b/apps/web/lib/api/domains/github-pr-api.test.ts
@@ -0,0 +1,28 @@
+import { afterEach, expect, it, vi } from "vitest";
+
+vi.mock("@/lib/config", () => ({
+  getBackendConfig: () => ({ apiBaseUrl: "http://api.test" }),
+}));
+
+import { mergePR } from "./github-api";
+
+afterEach(() => {
+  vi.unstubAllGlobals();
+});
+
+it("returns the queue-aware merge outcome", async () => {
+  vi.stubGlobal(
+    "fetch",
+    vi.fn(
+      async () =>
+        new Response(JSON.stringify({ status: "queued" }), {
+          status: 200,
+          headers: { "Content-Type": "application/json" },
+        }),
+    ),
+  );
+
+  await expect(mergePR("workspace-1", "acme", "site", 42, "squash")).resolves.toEqual({
+    status: "queued",
+  });
+});
diff --git a/apps/web/lib/api/domains/github-pr-api.ts b/apps/web/lib/api/domains/github-pr-api.ts
index 4300fb0de5..478826589c 100644
--- a/apps/web/lib/api/domains/github-pr-api.ts
+++ b/apps/web/lib/api/domains/github-pr-api.ts
@@ -73,7 +73,7 @@ export async function mergePR(
   number: number,
   mergeMethod?: MergeMethod,
 ) {
-  return fetchJson<{ merged: boolean }>(
+  return fetchJson<{ status: "merged" | "queued" }>(
     `/api/v1/github/prs/${owner}/${repo}/${number}/merge?${workspaceQuery(workspaceId)}`,
     {
       init: {
diff --git a/apps/web/src/locales/en/github.json b/apps/web/src/locales/en/github.json
index cc577036ec..40f04efa04 100644
--- a/apps/web/src/locales/en/github.json
+++ b/apps/web/src/locales/en/github.json
@@ -377,6 +377,7 @@
   "prClosedWithoutMerging": "PR closed without merging",
   "prEvents": "PR events",
   "reviewFollowUp": "Review follow-up",
+  "prAddedToMergeQueue": "PR added to merge queue",
   "prMerged": "PR merged",
   "prTaskStatusCi": "CI",
   "prTaskStatusMerge": "Merge",
diff --git a/apps/web/src/locales/pseudo/github.json b/apps/web/src/locales/pseudo/github.json
index 1ac151e9ad..15bbf8c8ba 100644
--- a/apps/web/src/locales/pseudo/github.json
+++ b/apps/web/src/locales/pseudo/github.json
@@ -377,6 +377,7 @@
   "prClosedWithoutMerging": "ƤŔ ćĺōśēď ŵĩţĥōũţ ḿēŕĝĩńĝ",
   "prEvents": "ƤŔ ēvēńţś",
   "reviewFollowUp": "Ŕēvĩēŵ ƒōĺĺōŵ-ũƥ",
+  "prAddedToMergeQueue": "ƤŔ àďďēď ţō ḿēŕĝē qũēũē",
   "prMerged": "ƤŔ ḿēŕĝēď",
   "prTaskStatusCi": "ĆĨ",
   "prTaskStatusMerge": "Ḿēŕĝē",
diff --git a/apps/web/src/locales/pt-pt/github.json b/apps/web/src/locales/pt-pt/github.json
index aad5eaf2a2..58f7fce90d 100644
--- a/apps/web/src/locales/pt-pt/github.json
+++ b/apps/web/src/locales/pt-pt/github.json
@@ -370,6 +370,7 @@
   "prApproved": "PR aprovado",
   "prClosedWithoutMerging": "PR fechado sem merge",
   "prEvents": "Eventos de PR",
+  "prAddedToMergeQueue": "PR adicionado à fila de merge",
   "prMerged": "PR integrado",
   "prepareAppOnGithub": "Preparar a App no GitHub",
   "presetIconBug": "Bug",
diff --git a/apps/web/src/locales/zh-cn/github.json b/apps/web/src/locales/zh-cn/github.json
index a2c094e001..d2b88ababf 100644
--- a/apps/web/src/locales/zh-cn/github.json
+++ b/apps/web/src/locales/zh-cn/github.json
@@ -377,6 +377,7 @@
   "prClosedWithoutMerging": "PR 已关闭且未合并",
   "prEvents": "PR 事件",
   "reviewFollowUp": "审查跟进",
+  "prAddedToMergeQueue": "PR 已添加到合并队列",
   "prMerged": "PR 已合并",
   "prTaskStatusCi": "CI",
   "prTaskStatusMerge": "合并",
diff --git a/apps/web/src/locales/zh-hk/agents.json b/apps/web/src/locales/zh-hk/agents.json
index 7f7c78ae7d..3a52e5366e 100644
--- a/apps/web/src/locales/zh-hk/agents.json
+++ b/apps/web/src/locales/zh-hk/agents.json
@@ -30,6 +30,7 @@
   "capabilityProbeFailed": "探測失敗。請查看代理程式日誌了解詳情。",
   "capabilityProbing": "正在檢查代理程式能力…",
   "changeTierMappingsFirst": "刪除此設定前，請先更改這些工作區層級映射。",
+  "everythingInstalled": "所有可用代理程式和工具均已安裝。",
   "checkingAuthentication": "正在檢查身份驗證",
   "checkingCapabilitiesAndAuth": "正在檢查代理程式能力與身份驗證…",
   "checkingLatestRuntimeVersion": "正在檢查最新執行時版本…",
@@ -50,13 +51,18 @@
   "conflictTasksTitle": "任務：",
   "conflictTierMappingRow": "{{workspace}} 中 {{provider}} 的 <0>{{tier}}</0> 層級",
   "conflictTierMappingsTitle": "工作區層級映射：",
-  "conflictUtilityAgentsTitle": "輔助代理程式（將保留失效綁定）：",
   "conflictWatchersTitle": "監控（將被停用）：",
+  "conflictUtilityAgentsTitle": "輔助代理程式（將保留失效綁定）：",
+  "disableProfileUtilityWarning": "輔助代理程式正在使用此設定。停用後，新呼叫會停止，直到修復每個綁定。",
+  "disableProfileAnyway": "停用設定",
   "copied": "已複製",
   "copyInstallCommand": "複製安裝命令",
   "copyToClipboard": "複製到剪貼板",
   "create": "建立",
   "createAgentProfileTitle": "建立 {{name}} 設定",
+  "installAgents": "安裝代理程式",
+  "profileCount_one": "{{count}} 個設定",
+  "profileCount_other": "{{count}} 個設定",
   "createProfileIntro": "為此代理程式建立新設定。",
   "creating": "正在建立…",
   "defaultProfile": "預設代理程式設定檔",
@@ -73,30 +79,27 @@
   "details": "詳情",
   "detectedAt": "檢測路徑：{{path}}",
   "disableProfile": "停用代理程式設定檔",
-  "disableProfileAnyway": "停用設定",
-  "disableProfileUtilityWarning": "輔助代理程式正在使用此設定。停用後，新呼叫會停止，直到修復每個綁定。",
   "disableSetting": "停用 {{name}}",
   "displayName": "顯示名稱",
   "displayNameRequired": "顯示名稱為必填項",
   "done": "完成",
-  "duplicate": "複製",
-  "duplicateProfileNamed": "複製 {{name}}",
-  "duplicateProfileSuccess": "代理程式設定檔已複製",
-  "duplicateSaveBlocked": "設定仍在儲存，請稍後重試。",
   "enableMcp": "啓用 MCP",
   "enableMcpDescription": "允許此設定在工作階段中使用 MCP 伺服器。",
   "enableProfile": "啓用代理程式設定檔",
   "enableSetting": "啓用 {{name}}",
   "enabled": "已啓用",
-  "enabledProfileHelper": "已停用的代理程式設定檔仍會繼續服務現有工作階段，但在建立新任務或代理程式時不會出現在選項中。",
   "enabledProfileInfo": "關於代理程式設定檔可用性的更多資訊",
+  "enabledProfileHelper": "已停用的代理程式設定檔仍會繼續服務現有工作階段，但在建立新任務或代理程式時不會出現在選項中。",
   "everyProfileNeedsNameAndModel": "每個設定都需要名稱和模型。",
-  "everythingInstalled": "所有可用代理程式和工具均已安裝。",
   "exampleValue": "例如 {{example}}",
   "failedToCreateAgent": "建立代理程式失敗",
   "failedToDeleteProfile": "刪除設定失敗",
-  "failedToDuplicateProfile": "複製代理程式設定檔失敗",
   "failedToFetchCapabilities": "擷取能力失敗",
+  "modelOptionsAuthenticationRequired": "請登入此代理程式以載入模型選項。",
+  "modelOptionsResolutionFailed": "無法載入模型選項。",
+  "modelSettings": "模型設定",
+  "resolvingModelOptions": "正在載入模型選項…",
+  "retryModelOptions": "重試",
   "failedToLoadCommandPreview": "載入命令預覽失敗",
   "failedToLoadMcpConfig": "載入 MCP 設定失敗",
   "failedToRefresh": "刷新失敗：{{error}}",
@@ -111,7 +114,6 @@
   "hostTerminal": "主機終端",
   "hostTerminalDescription": "在 Kandev 主機上執行 shell。可用於手動安裝或設定代理程式。",
   "install": "安裝",
-  "installAgents": "安裝代理程式",
   "installQueued": "已排隊…",
   "installationNotDetected": "未檢測到安裝",
   "installed": "已安裝",
@@ -136,15 +138,12 @@
   "mcpStrategyOption": "{{name}}：{{mechanism}}",
   "model": "模型",
   "modelHeading": "模型",
-  "modelOptionsAuthenticationRequired": "請登入此代理程式以載入模型選項。",
-  "modelOptionsResolutionFailed": "無法載入模型選項。",
   "modelRequiredForAllProfiles": "所有設定都需要模型。",
-  "modelSettings": "模型設定",
-  "newProfile": "新設定",
   "noAuthHintLogin": "點擊「開啟終端」登入，然後刷新。",
   "noAuthHintNotInstalled": "安裝代理程式 CLI，然後點擊「刷新」。",
   "noAuthHintShell": "點擊「開啟終端」啓動 shell，執行代理程式的登入命令，然後刷新。",
   "noAuthLoginRequired": "未驗證；需要登入",
+  "newProfile": "新設定",
   "noCliFlagsConfigured": "未設定 CLI 旗標。請在下方新增。",
   "noCommandPreview": "無可用命令預覽。",
   "noInstalledAgentsDetected": "未檢測到已安裝的代理程式。請在下方安裝，然後點擊「重新掃描」。",
@@ -157,8 +156,6 @@
   "popularServers": "常用伺服器",
   "probingCapabilities": "正在探測代理程式能力… 通常需要幾秒鐘。",
   "profileActions": "設定操作",
-  "profileCount_one": "{{count}} 個設定",
-  "profileCount_other": "{{count}} 個設定",
   "profileInUseIntro": "此設定目前正在使用。刪除後將影響以下內容：",
   "profileName": "設定名稱",
   "profileNameRequired": "設定名稱為必填項。",
@@ -175,9 +172,7 @@
   "removeThisProfile": "移除此設定",
   "requestFailed": "請求失敗",
   "rescan": "重新掃描",
-  "resolvingModelOptions": "正在載入模型選項…",
   "retry": "重試",
-  "retryModelOptions": "重試",
   "retryUpdate": "重試更新",
   "retryVersionCheck": "重試版本檢查",
   "reviewUpdateBeforeApplying": "在 Kandev 更改此主機執行時之前，請先審閱更新。",
@@ -187,6 +182,16 @@
   "runtimeUpdateSessionsNote": "活動工作階段會繼續執行；僅後續探測與啓動會使用刷新後的執行時。",
   "runtimeUpdatedRefreshFailed": "執行時已更新，但無法刷新能力：{{error}}",
   "runtimeUpdatedSuccess": "執行時更新成功。",
+  "activeRuntimeVersion": "活動版本：{{version}}",
+  "activeRuntimeVersionMarker": "活動",
+  "latestRuntimeVersion": "最新",
+  "runtimeVersionMarkerGroup": "（{{markers}}）",
+  "runtimeVersionOption": "{{version}} {{markers}}",
+  "selectRuntimeVersion": "要激活的版本",
+  "updateRuntime": "更新執行時",
+  "rollBackRuntime": "回滾執行時",
+  "repairRuntime": "修復執行時",
+  "upToDateRuntime": "已是最新",
   "scanningForInstalledAgents": "正在掃描已安裝的代理程式…",
   "searchModels": "搜尋模型…",
   "searchModes": "搜尋模式…",
@@ -219,18 +224,13 @@
   "watcherKindGithubReview": "GitHub PR 審查",
   "watcherKindJira": "Jira",
   "watcherKindLinear": "Linear",
-  "activeRuntimeVersion": "活動版本：{{version}}",
-  "activeRuntimeVersionMarker": "活動",
-  "latestRuntimeVersion": "最新",
-  "runtimeVersionMarkerGroup": "（{{markers}}）",
-  "runtimeVersionOption": "{{version}} {{markers}}",
-  "selectRuntimeVersion": "要激活的版本",
-  "updateRuntime": "更新執行時",
-  "rollBackRuntime": "回滾執行時",
-  "repairRuntime": "修復執行時",
-  "upToDateRuntime": "已是最新",
   "collapseAgentProfiles": "摺疊 {{name}} 設定",
   "expandAgentProfiles": "展開 {{name}} 設定",
+  "duplicate": "複製",
+  "duplicateProfileNamed": "複製 {{name}}",
+  "duplicateProfileSuccess": "代理程式設定檔已複製",
+  "duplicateSaveBlocked": "設定仍在儲存，請稍後重試。",
+  "failedToDuplicateProfile": "複製代理程式設定檔失敗",
   "noProfilesYetShort": "暫無設定",
   "createProfile": "建立設定",
   "creatingProfile": "正在建立…",
diff --git a/apps/web/src/locales/zh-hk/chat.json b/apps/web/src/locales/zh-hk/chat.json
index 01b43f53cd..be264774a6 100644
--- a/apps/web/src/locales/zh-hk/chat.json
+++ b/apps/web/src/locales/zh-hk/chat.json
@@ -66,6 +66,7 @@
   "noRepositoriesAvailableInWorkspace": "此工作區中沒有可用儲存庫",
   "noRepository": "無儲存庫",
   "optional": "（可選）",
+  "pinQueuedMessages": "固定訊息佇列",
   "providerQuotaModel": "模型：{{model}}",
   "providerQuotaProviderFallback": "提供者",
   "providerQuotaReset": "容量將於 {{resetAt}} 恢復。",
@@ -140,7 +141,6 @@
   "transientRetryProviderModel": "{{provider}} · {{model}}",
   "transientRetryProvider": "服務商：{{provider}}",
   "transientRetryModel": "模型：{{model}}",
-  "pinQueuedMessages": "固定訊息佇列",
   "unpinQueuedMessages": "取消固定訊息佇列",
   "emptyTurnKnownCommand": "`/{{command}}` 已執行，但沒有產生任何輸出。{{hint}}",
   "emptyTurnNoOutput": "代理程式已結束，但沒有產生任何輸出。",
diff --git a/apps/web/src/locales/zh-hk/github.json b/apps/web/src/locales/zh-hk/github.json
index 4cfa4bf472..5c13c9449c 100644
--- a/apps/web/src/locales/zh-hk/github.json
+++ b/apps/web/src/locales/zh-hk/github.json
@@ -377,6 +377,7 @@
   "prClosedWithoutMerging": "PR 已關閉且未合併",
   "prEvents": "PR 事件",
   "reviewFollowUp": "審查跟進",
+  "prAddedToMergeQueue": "PR 已新增到合併佇列",
   "prMerged": "PR 已合併",
   "prTaskStatusCi": "CI",
   "prTaskStatusMerge": "合併",
diff --git a/apps/web/src/locales/zh-hk/integrations.json b/apps/web/src/locales/zh-hk/integrations.json
index c720a4201e..a2c099cf66 100644
--- a/apps/web/src/locales/zh-hk/integrations.json
+++ b/apps/web/src/locales/zh-hk/integrations.json
@@ -27,6 +27,9 @@
   "copyingConfigTo": "正在將 {{label}} 設定複製到 {{targetName}}…",
   "createAsDraft": "建立為草稿",
   "createdSuccessfully": "{{longName}} 建立成功",
+  "createdLinkNeedsAttention": "{{shortName}} 已建立；任務連結需要處理",
+  "associationRetryViaTaskMenu": "{{message}}。請在任務菜單中使用「連結」重試。",
+  "taskAssociationCouldNotBeSaved": "無法儲存任務關聯。",
   "createFailed": "建立 {{shortName}} 失敗",
   "createLongName": "建立 {{longName}}",
   "createPr": "建立 PR",
@@ -75,6 +78,7 @@
   "rebase": "變基",
   "rebaseOntoBranchBehind": "變基到 {{branch}}（落後 {{behind}}）",
   "reconnectProvider": "重新連接 {{name}}",
+  "registeredProvider": "已註冊提供者",
   "repository": "儲存庫",
   "retryShortName": "重試 {{shortName}}",
   "saveCurrentQuery": "儲存目前查詢",
@@ -87,11 +91,6 @@
   "stageAllChangesBeforeCommitting": "提交前暫存所有更改",
   "targetWorkspace": "目標工作區",
   "unknownError": "未知錯誤",
-  "waitingForTheNextBackendHealth": "正在等待下一次後端健康檢查…",
-  "createdLinkNeedsAttention": "{{shortName}} 已建立；任務連結需要處理",
-  "associationRetryViaTaskMenu": "{{message}}。請在任務菜單中使用「連結」重試。",
-  "taskAssociationCouldNotBeSaved": "無法儲存任務關聯。",
-  "registeredProvider": "已註冊提供者",
   "failedToUnlinkPullRequest": "無法取消關聯拉取要求",
   "pullRequestUnlinked": "已取消關聯拉取要求",
   "linkedProviderPullRequests_one": "已關聯 {{count}} 個 {{provider}} 拉取要求",
@@ -104,6 +103,7 @@
   "queryName": "名稱",
   "queryNamePlaceholder": "例如：需要我的審查",
   "saveQuery": "儲存查詢",
+  "waitingForTheNextBackendHealth": "正在等待下一次後端健康檢查…",
   "cursorPaginationSummary_one": "第 {{page}} 頁 · {{count}} 個結果",
   "cursorPaginationSummary_other": "第 {{page}} 頁 · {{count}} 個結果",
   "actionFromReviewer": "{{name}} {{action}}",
diff --git a/apps/web/src/locales/zh-hk/kanban.json b/apps/web/src/locales/zh-hk/kanban.json
index 1ea0598ecf..df22504fe8 100644
--- a/apps/web/src/locales/zh-hk/kanban.json
+++ b/apps/web/src/locales/zh-hk/kanban.json
@@ -63,7 +63,10 @@
   "pipeline": "流水線",
   "previewPanel": "預覽面板",
   "previousStep": "上一步",
+  "queuedCount_one": "{{count}} 個排隊任務",
+  "queuedCount_other": "{{count}} 個排隊任務",
   "queuedForStep": "已排隊等待 {{step}}",
+  "queuedSection": "排隊中",
   "repository": "儲存庫",
   "searchPlaceholder": "搜尋…",
   "searchSection": "搜尋",
@@ -92,9 +95,6 @@
   "workflowStepFallback": "工作流程步驟 {{stepId}}",
   "columns": "列",
   "columnsForWorkflow": "{{name}} 的列",
-  "queuedCount_one": "{{count}} 個排隊任務",
-  "queuedCount_other": "{{count}} 個排隊任務",
-  "queuedSection": "排隊中",
   "needsReassignment": "需要重新分配",
   "blockedByCount_one": "被 {{count}} 項阻塞",
   "blockedByCount_other": "被 {{count}} 項阻塞",
diff --git a/apps/web/src/locales/zh-hk/sidebar.json b/apps/web/src/locales/zh-hk/sidebar.json
index 61c3c2077c..c3f51653cb 100644
--- a/apps/web/src/locales/zh-hk/sidebar.json
+++ b/apps/web/src/locales/zh-hk/sidebar.json
@@ -70,6 +70,7 @@
   "projects": "項目",
   "queuedPromptCount_one": "{{count}} 條排隊提示",
   "queuedPromptCount_other": "{{count}} 條排隊提示",
+  "wipQueuePosition": "{{step}} 佇列中的第 {{position}} 項，共 {{total}} 項",
   "quickChat": "快速聊天",
   "quickTerminal": "快速終端",
   "quickChatTerminals": "終端",
@@ -107,7 +108,6 @@
   "whatsNew": "新功能",
   "work": "工作",
   "workspaceFallback": "工作區",
-  "wipQueuePosition": "{{step}} 佇列中的第 {{position}} 項，共 {{total}} 項",
   "taskPreferences": "側邊欄任務偏好設定",
   "views": "側邊欄視圖",
   "failedToLoadArchivedTasks": "載入已歸檔任務失敗",
diff --git a/apps/web/src/locales/zh-hk/task.json b/apps/web/src/locales/zh-hk/task.json
index 0ad3e6370c..4e7736c49d 100644
--- a/apps/web/src/locales/zh-hk/task.json
+++ b/apps/web/src/locales/zh-hk/task.json
@@ -460,7 +460,6 @@
   "failedToPublishShare": "發佈分享失敗。",
   "failedToRead": "讀取 {{name}} 失敗",
   "failedToRenameBranch": "重命名分支失敗",
-  "failedToRenameItem": "重命名項目失敗",
   "failedToRenameTask": "重命名任務失敗",
   "failedToRestorePlan": "恢復計劃失敗",
   "failedToResumeSession": "無法恢復工作階段",
@@ -933,6 +932,9 @@
   "promptFieldLabel": "提示詞",
   "providerPrivateContextThatKandevDid": "Kandev 未記錄的提供者私有上下文可能不會保留。已開啟的終端、開發伺服器及其他工作區程序會停止，包括任務編輯器伺服器。",
   "providerUnavailable": "提供者不可用",
+  "providerAheadPushDisabled": "提供者分支較新。無法執行推送。",
+  "providerAheadPullRequiresUpstream": "此檢出必須設定上游後才能拉取。",
+  "divergedActionsUnavailable": "貢獻歷史已分叉。請從 Changes 操作中選擇一個版本。",
   "proxy": "代理伺服器",
   "publishARedactedSnapshotOfThis": "將此已完成任務的脱敏快照發布為你帳戶上的私密 GitHub Gist。",
   "publishToGithubGist": "發佈到 GitHub Gist",
@@ -1081,6 +1083,8 @@
   "reviewTheseChangesBeforeAddingSources": "新增來源前請審閱這些變更。在操作完成前任務必須保持空閒。",
   "reviewed": "已審閱",
   "reviewers": "審閱人",
+  "reviewsCount_one": "審閱（{{count}}）",
+  "reviewsCount_other": "審閱（{{count}}）",
   "revoke": "撤銷",
   "revokeShare": "撤銷分享",
   "revoking": "正在撤銷…",
@@ -1242,6 +1246,7 @@
   "start2": "開始",
   "startAgent": "啓動代理程式",
   "startAgent2": "啓動代理程式",
+  "composerStartAgentHint": "傳送訊息將自動啓動代理程式。",
   "startDevServerPreview": "啓動開發伺服器預覽",
   "startFreshSession": "開始全新工作階段",
   "startPlanMode": "啓動計劃模式",
@@ -1512,12 +1517,6 @@
   "autopilotInfoLabel": "了解自動駕駛模式",
   "autopilotSidebarDescription": "自動駕駛任務",
   "autopilotChatDescription": "自動駕駛已啓用。代理程式只會向父任務詢問關鍵決策。",
-  "providerAheadPushDisabled": "提供者分支較新。無法執行推送。",
-  "providerAheadPullRequiresUpstream": "此檢出必須設定上游後才能拉取。",
-  "divergedActionsUnavailable": "貢獻歷史已分叉。請從 Changes 操作中選擇一個版本。",
-  "reviewsCount_one": "審閱（{{count}}）",
-  "reviewsCount_other": "審閱（{{count}}）",
-  "composerStartAgentHint": "傳送訊息將自動啓動代理程式。",
   "duplicateRepository": "儲存庫重複",
   "duplicateRepositoryDescription": "{{repository}} 被新增了多次。請刪除重複行。",
   "repositoryStillBeingVerified": "仍在驗證儲存庫",
@@ -1531,6 +1530,7 @@
   "failedToDownloadFile": "下載檔案失敗",
   "failedToFetchPlan": "擷取計劃失敗",
   "failedToLoadPlanRevisions": "載入修訂版本失敗",
+  "failedToRenameItem": "重命名項目失敗",
   "failedToRevertPlan": "還原計劃失敗",
   "failedToSavePlan": "儲存計劃失敗",
   "failedToStartTaskPlanMode": "以計劃模式啓動任務失敗",
diff --git a/apps/web/src/locales/zh-hk/workflows.json b/apps/web/src/locales/zh-hk/workflows.json
index ebf8fa28f9..3eb44f4604 100644
--- a/apps/web/src/locales/zh-hk/workflows.json
+++ b/apps/web/src/locales/zh-hk/workflows.json
@@ -143,6 +143,8 @@
   "promptSourceStepPromptWithTaskDescription": "重新進入「{{stepName}}」會傳送已渲染的步驟提示詞（含任務描述）。",
   "promptSourceTaskDescription": "「{{stepName}}」沒有步驟提示詞，因此重新進入時會傳送任務描述。",
   "pullFrom": "拉取自",
+  "pullFromGuidanceWithFeeder": "可選的自動饋送入口。目標佇列中的任務優先獲得准入；有容量時，Kandev 再從 {{feeder}} 拉取符合條件的工作。直接移動和自動轉換會在目標步驟排隊，不需要饋送步驟。新任務在目標步驟已滿時使用此饋送步驟。",
+  "pullFromGuidanceWithoutFeeder": "未選擇饋送步驟。目標步驟已滿時，直接移動和自動轉換會在此目標佇列中排隊。新任務也會留在此佇列中，直到有可用容量。",
   "readOnlyManagedBySync": "只讀；由工作流程同步管理",
   "readOnlyManagedByImproveKandev": "只讀；由 Improve Kandev 管理",
   "remove": "移除",
@@ -260,8 +262,6 @@
   "workflowsSectionDescription": "建立帶自動流轉的自主流水線，或由你手動移動任務的手動工作流程",
   "workflowSteps": "工作流程步驟",
   "workflowSyncCompleted": "工作流程同步完成",
-  "pullFromGuidanceWithFeeder": "可選的自動饋送入口。目標佇列中的任務優先獲得准入；有容量時，Kandev 再從 {{feeder}} 拉取符合條件的工作。直接移動和自動轉換會在目標步驟排隊，不需要饋送步驟。新任務在目標步驟已滿時使用此饋送步驟。",
-  "pullFromGuidanceWithoutFeeder": "未選擇饋送步驟。目標步驟已滿時，直接移動和自動轉換會在此目標佇列中排隊。新任務也會留在此佇列中，直到有可用容量。",
   "loadingSteps": "正在載入步驟…",
   "noStepsInThisWorkflow": "該工作流程沒有步驟",
   "selectAWorkflowFirst": "請先選擇一個工作流程"
diff --git a/apps/web/src/locales/zh-tw/agents.json b/apps/web/src/locales/zh-tw/agents.json
index 66bb0f4b26..ea07c7dcb5 100644
--- a/apps/web/src/locales/zh-tw/agents.json
+++ b/apps/web/src/locales/zh-tw/agents.json
@@ -30,6 +30,7 @@
   "capabilityProbeFailed": "探測失敗。請檢視代理程式日誌了解詳情。",
   "capabilityProbing": "正在檢查代理程式能力…",
   "changeTierMappingsFirst": "刪除此設定前，請先更改這些工作區層級對映。",
+  "everythingInstalled": "所有可用代理程式和工具均已安裝。",
   "checkingAuthentication": "正在檢查身分驗證",
   "checkingCapabilitiesAndAuth": "正在檢查代理程式能力與身分驗證…",
   "checkingLatestRuntimeVersion": "正在檢查最新執行時版本…",
@@ -50,13 +51,18 @@
   "conflictTasksTitle": "任務：",
   "conflictTierMappingRow": "{{workspace}} 中 {{provider}} 的 <0>{{tier}}</0> 層級",
   "conflictTierMappingsTitle": "工作區層級對映：",
-  "conflictUtilityAgentsTitle": "輔助代理程式（將保留失效繫結）：",
   "conflictWatchersTitle": "監控（將被停用）：",
+  "conflictUtilityAgentsTitle": "輔助代理程式（將保留失效繫結）：",
+  "disableProfileUtilityWarning": "輔助代理程式正在使用此設定。停用後，新呼叫會停止，直到修復每個繫結。",
+  "disableProfileAnyway": "停用設定",
   "copied": "已複製",
   "copyInstallCommand": "複製安裝命令",
   "copyToClipboard": "複製到剪貼簿",
   "create": "建立",
   "createAgentProfileTitle": "建立 {{name}} 設定",
+  "installAgents": "安裝代理程式",
+  "profileCount_one": "{{count}} 個設定",
+  "profileCount_other": "{{count}} 個設定",
   "createProfileIntro": "為此代理程式建立新設定。",
   "creating": "正在建立…",
   "defaultProfile": "預設代理程式設定檔",
@@ -73,30 +79,27 @@
   "details": "詳情",
   "detectedAt": "檢測路徑：{{path}}",
   "disableProfile": "停用代理程式設定檔",
-  "disableProfileAnyway": "停用設定",
-  "disableProfileUtilityWarning": "輔助代理程式正在使用此設定。停用後，新呼叫會停止，直到修復每個繫結。",
   "disableSetting": "停用 {{name}}",
   "displayName": "顯示名稱",
   "displayNameRequired": "顯示名稱為必填項",
   "done": "完成",
-  "duplicate": "複製",
-  "duplicateProfileNamed": "複製 {{name}}",
-  "duplicateProfileSuccess": "代理程式設定檔已複製",
-  "duplicateSaveBlocked": "設定仍在儲存，請稍後重試。",
   "enableMcp": "啟用 MCP",
   "enableMcpDescription": "允許此設定在工作階段中使用 MCP 伺服器。",
   "enableProfile": "啟用代理程式設定檔",
   "enableSetting": "啟用 {{name}}",
   "enabled": "已啟用",
-  "enabledProfileHelper": "已停用的代理程式設定檔仍會繼續服務現有工作階段，但在建立新任務或代理程式時不會出現在選項中。",
   "enabledProfileInfo": "關於代理程式設定檔可用性的更多資訊",
+  "enabledProfileHelper": "已停用的代理程式設定檔仍會繼續服務現有工作階段，但在建立新任務或代理程式時不會出現在選項中。",
   "everyProfileNeedsNameAndModel": "每個設定都需要名稱和模型。",
-  "everythingInstalled": "所有可用代理程式和工具均已安裝。",
   "exampleValue": "例如 {{example}}",
   "failedToCreateAgent": "建立代理程式失敗",
   "failedToDeleteProfile": "刪除設定失敗",
-  "failedToDuplicateProfile": "複製代理程式設定檔失敗",
   "failedToFetchCapabilities": "擷取能力失敗",
+  "modelOptionsAuthenticationRequired": "請登入此代理程式以載入模型選項。",
+  "modelOptionsResolutionFailed": "無法載入模型選項。",
+  "modelSettings": "模型設定",
+  "resolvingModelOptions": "正在載入模型選項…",
+  "retryModelOptions": "重試",
   "failedToLoadCommandPreview": "載入命令預覽失敗",
   "failedToLoadMcpConfig": "載入 MCP 設定失敗",
   "failedToRefresh": "重新整理失敗：{{error}}",
@@ -111,7 +114,6 @@
   "hostTerminal": "主機終端",
   "hostTerminalDescription": "在 Kandev 主機上執行 shell。可用於手動安裝或設定代理程式。",
   "install": "安裝",
-  "installAgents": "安裝代理程式",
   "installQueued": "已排隊…",
   "installationNotDetected": "未檢測到安裝",
   "installed": "已安裝",
@@ -136,15 +138,12 @@
   "mcpStrategyOption": "{{name}}：{{mechanism}}",
   "model": "模型",
   "modelHeading": "模型",
-  "modelOptionsAuthenticationRequired": "請登入此代理程式以載入模型選項。",
-  "modelOptionsResolutionFailed": "無法載入模型選項。",
   "modelRequiredForAllProfiles": "所有設定都需要模型。",
-  "modelSettings": "模型設定",
-  "newProfile": "新設定",
   "noAuthHintLogin": "點選「開啟終端」登入，然後重新整理。",
   "noAuthHintNotInstalled": "安裝代理程式 CLI，然後點選「重新整理」。",
   "noAuthHintShell": "點選「開啟終端」啟動 shell，執行代理程式的登入命令，然後重新整理。",
   "noAuthLoginRequired": "未驗證；需要登入",
+  "newProfile": "新設定",
   "noCliFlagsConfigured": "未設定 CLI 旗標。請在下方新增。",
   "noCommandPreview": "無可用命令預覽。",
   "noInstalledAgentsDetected": "未檢測到已安裝的代理程式。請在下方安裝，然後點選「重新掃描」。",
@@ -157,8 +156,6 @@
   "popularServers": "常用伺服器",
   "probingCapabilities": "正在探測代理程式能力… 通常需要幾秒鐘。",
   "profileActions": "設定操作",
-  "profileCount_one": "{{count}} 個設定",
-  "profileCount_other": "{{count}} 個設定",
   "profileInUseIntro": "此設定目前正在使用。刪除後將影響以下內容：",
   "profileName": "設定名稱",
   "profileNameRequired": "設定名稱為必填項。",
@@ -175,9 +172,7 @@
   "removeThisProfile": "移除此設定",
   "requestFailed": "請求失敗",
   "rescan": "重新掃描",
-  "resolvingModelOptions": "正在載入模型選項…",
   "retry": "重試",
-  "retryModelOptions": "重試",
   "retryUpdate": "重試更新",
   "retryVersionCheck": "重試版本檢查",
   "reviewUpdateBeforeApplying": "在 Kandev 更改此主機執行時之前，請先審閱更新。",
@@ -187,6 +182,16 @@
   "runtimeUpdateSessionsNote": "活動工作階段會繼續執行；僅後續探測與啟動會使用重新整理後的執行時。",
   "runtimeUpdatedRefreshFailed": "執行時已更新，但無法重新整理能力：{{error}}",
   "runtimeUpdatedSuccess": "執行時更新成功。",
+  "activeRuntimeVersion": "活動版本：{{version}}",
+  "activeRuntimeVersionMarker": "活動",
+  "latestRuntimeVersion": "最新",
+  "runtimeVersionMarkerGroup": "（{{markers}}）",
+  "runtimeVersionOption": "{{version}} {{markers}}",
+  "selectRuntimeVersion": "要啟用的版本",
+  "updateRuntime": "更新執行時",
+  "rollBackRuntime": "回滾執行時",
+  "repairRuntime": "修復執行時",
+  "upToDateRuntime": "已是最新",
   "scanningForInstalledAgents": "正在掃描已安裝的代理程式…",
   "searchModels": "搜尋模型…",
   "searchModes": "搜尋模式…",
@@ -219,18 +224,13 @@
   "watcherKindGithubReview": "GitHub PR 審查",
   "watcherKindJira": "Jira",
   "watcherKindLinear": "Linear",
-  "activeRuntimeVersion": "活動版本：{{version}}",
-  "activeRuntimeVersionMarker": "活動",
-  "latestRuntimeVersion": "最新",
-  "runtimeVersionMarkerGroup": "（{{markers}}）",
-  "runtimeVersionOption": "{{version}} {{markers}}",
-  "selectRuntimeVersion": "要啟用的版本",
-  "updateRuntime": "更新執行時",
-  "rollBackRuntime": "回滾執行時",
-  "repairRuntime": "修復執行時",
-  "upToDateRuntime": "已是最新",
   "collapseAgentProfiles": "摺疊 {{name}} 設定",
   "expandAgentProfiles": "展開 {{name}} 設定",
+  "duplicate": "複製",
+  "duplicateProfileNamed": "複製 {{name}}",
+  "duplicateProfileSuccess": "代理程式設定檔已複製",
+  "duplicateSaveBlocked": "設定仍在儲存，請稍後重試。",
+  "failedToDuplicateProfile": "複製代理程式設定檔失敗",
   "noProfilesYetShort": "暫無設定",
   "createProfile": "建立設定",
   "creatingProfile": "正在建立…",
diff --git a/apps/web/src/locales/zh-tw/chat.json b/apps/web/src/locales/zh-tw/chat.json
index 52dbe706ac..8c1db04f5e 100644
--- a/apps/web/src/locales/zh-tw/chat.json
+++ b/apps/web/src/locales/zh-tw/chat.json
@@ -66,6 +66,7 @@
   "noRepositoriesAvailableInWorkspace": "此工作區中沒有可用儲存庫",
   "noRepository": "無儲存庫",
   "optional": "（可選）",
+  "pinQueuedMessages": "固定訊息佇列",
   "providerQuotaModel": "模型：{{model}}",
   "providerQuotaProviderFallback": "提供者",
   "providerQuotaReset": "容量將於 {{resetAt}} 恢復。",
@@ -140,7 +141,6 @@
   "transientRetryProviderModel": "{{provider}} · {{model}}",
   "transientRetryProvider": "服務商：{{provider}}",
   "transientRetryModel": "模型：{{model}}",
-  "pinQueuedMessages": "固定訊息佇列",
   "unpinQueuedMessages": "取消固定訊息佇列",
   "emptyTurnKnownCommand": "`/{{command}}` 已執行，但沒有產生任何輸出。{{hint}}",
   "emptyTurnNoOutput": "代理程式已結束，但沒有產生任何輸出。",
diff --git a/apps/web/src/locales/zh-tw/github.json b/apps/web/src/locales/zh-tw/github.json
index 1c96632a79..0ce5442218 100644
--- a/apps/web/src/locales/zh-tw/github.json
+++ b/apps/web/src/locales/zh-tw/github.json
@@ -377,6 +377,7 @@
   "prClosedWithoutMerging": "PR 已關閉且未合併",
   "prEvents": "PR 事件",
   "reviewFollowUp": "審查跟進",
+  "prAddedToMergeQueue": "PR 已新增到合併佇列",
   "prMerged": "PR 已合併",
   "prTaskStatusCi": "CI",
   "prTaskStatusMerge": "合併",
diff --git a/apps/web/src/locales/zh-tw/integrations.json b/apps/web/src/locales/zh-tw/integrations.json
index 98ee5326c7..80dd35cff6 100644
--- a/apps/web/src/locales/zh-tw/integrations.json
+++ b/apps/web/src/locales/zh-tw/integrations.json
@@ -27,6 +27,9 @@
   "copyingConfigTo": "正在將 {{label}} 設定複製到 {{targetName}}…",
   "createAsDraft": "建立為草稿",
   "createdSuccessfully": "{{longName}} 建立成功",
+  "createdLinkNeedsAttention": "{{shortName}} 已建立；任務連結需要處理",
+  "associationRetryViaTaskMenu": "{{message}}。請在任務選單中使用「連結」重試。",
+  "taskAssociationCouldNotBeSaved": "無法儲存任務關聯。",
   "createFailed": "建立 {{shortName}} 失敗",
   "createLongName": "建立 {{longName}}",
   "createPr": "建立 PR",
@@ -75,6 +78,7 @@
   "rebase": "變基",
   "rebaseOntoBranchBehind": "變基到 {{branch}}（落後 {{behind}}）",
   "reconnectProvider": "重新連線 {{name}}",
+  "registeredProvider": "已註冊提供者",
   "repository": "儲存庫",
   "retryShortName": "重試 {{shortName}}",
   "saveCurrentQuery": "儲存目前查詢",
@@ -87,11 +91,6 @@
   "stageAllChangesBeforeCommitting": "提交前暫存所有更改",
   "targetWorkspace": "目標工作區",
   "unknownError": "未知錯誤",
-  "waitingForTheNextBackendHealth": "正在等待下一次後端健康檢查…",
-  "createdLinkNeedsAttention": "{{shortName}} 已建立；任務連結需要處理",
-  "associationRetryViaTaskMenu": "{{message}}。請在任務選單中使用「連結」重試。",
-  "taskAssociationCouldNotBeSaved": "無法儲存任務關聯。",
-  "registeredProvider": "已註冊提供者",
   "failedToUnlinkPullRequest": "無法取消關聯提取要求",
   "pullRequestUnlinked": "已取消關聯提取要求",
   "linkedProviderPullRequests_one": "已關聯 {{count}} 個 {{provider}} 提取要求",
@@ -104,6 +103,7 @@
   "queryName": "名稱",
   "queryNamePlaceholder": "例如：需要我的審查",
   "saveQuery": "儲存查詢",
+  "waitingForTheNextBackendHealth": "正在等待下一次後端健康檢查…",
   "cursorPaginationSummary_one": "第 {{page}} 頁 · {{count}} 個結果",
   "cursorPaginationSummary_other": "第 {{page}} 頁 · {{count}} 個結果",
   "actionFromReviewer": "{{name}} {{action}}",
diff --git a/apps/web/src/locales/zh-tw/kanban.json b/apps/web/src/locales/zh-tw/kanban.json
index 15785b85af..0c2c7d8b0f 100644
--- a/apps/web/src/locales/zh-tw/kanban.json
+++ b/apps/web/src/locales/zh-tw/kanban.json
@@ -63,7 +63,10 @@
   "pipeline": "流水線",
   "previewPanel": "預覽面板",
   "previousStep": "上一步",
+  "queuedCount_one": "{{count}} 個排隊任務",
+  "queuedCount_other": "{{count}} 個排隊任務",
   "queuedForStep": "已排隊等待 {{step}}",
+  "queuedSection": "排隊中",
   "repository": "儲存庫",
   "searchPlaceholder": "搜尋…",
   "searchSection": "搜尋",
@@ -92,9 +95,6 @@
   "workflowStepFallback": "工作流程步驟 {{stepId}}",
   "columns": "列",
   "columnsForWorkflow": "{{name}} 的列",
-  "queuedCount_one": "{{count}} 個排隊任務",
-  "queuedCount_other": "{{count}} 個排隊任務",
-  "queuedSection": "排隊中",
   "needsReassignment": "需要重新分配",
   "blockedByCount_one": "被 {{count}} 項阻塞",
   "blockedByCount_other": "被 {{count}} 項阻塞",
diff --git a/apps/web/src/locales/zh-tw/sidebar.json b/apps/web/src/locales/zh-tw/sidebar.json
index 25898e1d4f..9627e8958a 100644
--- a/apps/web/src/locales/zh-tw/sidebar.json
+++ b/apps/web/src/locales/zh-tw/sidebar.json
@@ -70,6 +70,7 @@
   "projects": "專案",
   "queuedPromptCount_one": "{{count}} 條排隊提示",
   "queuedPromptCount_other": "{{count}} 條排隊提示",
+  "wipQueuePosition": "{{step}} 佇列中的第 {{position}} 項，共 {{total}} 項",
   "quickChat": "快速聊天",
   "quickTerminal": "快速終端",
   "quickChatTerminals": "終端",
@@ -107,7 +108,6 @@
   "whatsNew": "新功能",
   "work": "工作",
   "workspaceFallback": "工作區",
-  "wipQueuePosition": "{{step}} 佇列中的第 {{position}} 項，共 {{total}} 項",
   "taskPreferences": "側邊欄任務偏好設定",
   "views": "側邊欄檢視",
   "failedToLoadArchivedTasks": "載入已歸檔任務失敗",
diff --git a/apps/web/src/locales/zh-tw/task.json b/apps/web/src/locales/zh-tw/task.json
index a7cdb21f95..298a93d0c2 100644
--- a/apps/web/src/locales/zh-tw/task.json
+++ b/apps/web/src/locales/zh-tw/task.json
@@ -460,7 +460,6 @@
   "failedToPublishShare": "釋出分享失敗。",
   "failedToRead": "讀取 {{name}} 失敗",
   "failedToRenameBranch": "重新命名分支失敗",
-  "failedToRenameItem": "重新命名專案失敗",
   "failedToRenameTask": "重新命名任務失敗",
   "failedToRestorePlan": "恢復計劃失敗",
   "failedToResumeSession": "無法恢復工作階段",
@@ -933,6 +932,9 @@
   "promptFieldLabel": "提示詞",
   "providerPrivateContextThatKandevDid": "Kandev 未記錄的提供者私有上下文可能不會保留。已開啟的終端、開發伺服器及其他工作區處理程序會停止，包括任務編輯器伺服器。",
   "providerUnavailable": "提供者不可用",
+  "providerAheadPushDisabled": "提供者分支較新。無法執行推送。",
+  "providerAheadPullRequiresUpstream": "此檢出必須設定上游後才能拉取。",
+  "divergedActionsUnavailable": "貢獻歷史已分叉。請從 Changes 操作中選擇一個版本。",
   "proxy": "代理伺服器",
   "publishARedactedSnapshotOfThis": "將此已完成任務的脫敏快照發布為你帳戶上的私密 GitHub Gist。",
   "publishToGithubGist": "釋出到 GitHub Gist",
@@ -1081,6 +1083,8 @@
   "reviewTheseChangesBeforeAddingSources": "新增來源前請審閱這些變更。在操作完成前任務必須保持空閒。",
   "reviewed": "已審閱",
   "reviewers": "審閱人",
+  "reviewsCount_one": "審閱（{{count}}）",
+  "reviewsCount_other": "審閱（{{count}}）",
   "revoke": "撤銷",
   "revokeShare": "撤銷分享",
   "revoking": "正在撤銷…",
@@ -1242,6 +1246,7 @@
   "start2": "開始",
   "startAgent": "啟動代理程式",
   "startAgent2": "啟動代理程式",
+  "composerStartAgentHint": "傳送訊息將自動啟動代理程式。",
   "startDevServerPreview": "啟動開發伺服器預覽",
   "startFreshSession": "開始全新工作階段",
   "startPlanMode": "啟動計劃模式",
@@ -1512,12 +1517,6 @@
   "autopilotInfoLabel": "了解自動駕駛模式",
   "autopilotSidebarDescription": "自動駕駛任務",
   "autopilotChatDescription": "自動駕駛已啟用。代理程式只會向父任務詢問關鍵決策。",
-  "providerAheadPushDisabled": "提供者分支較新。無法執行推送。",
-  "providerAheadPullRequiresUpstream": "此檢出必須設定上游後才能拉取。",
-  "divergedActionsUnavailable": "貢獻歷史已分叉。請從 Changes 操作中選擇一個版本。",
-  "reviewsCount_one": "審閱（{{count}}）",
-  "reviewsCount_other": "審閱（{{count}}）",
-  "composerStartAgentHint": "傳送訊息將自動啟動代理程式。",
   "duplicateRepository": "儲存庫重複",
   "duplicateRepositoryDescription": "{{repository}} 被新增了多次。請刪除重複行。",
   "repositoryStillBeingVerified": "仍在驗證儲存庫",
@@ -1531,6 +1530,7 @@
   "failedToDownloadFile": "下載檔案失敗",
   "failedToFetchPlan": "擷取計劃失敗",
   "failedToLoadPlanRevisions": "載入修訂版本失敗",
+  "failedToRenameItem": "重新命名專案失敗",
   "failedToRevertPlan": "還原計劃失敗",
   "failedToSavePlan": "儲存計劃失敗",
   "failedToStartTaskPlanMode": "以計劃模式啟動任務失敗",
diff --git a/apps/web/src/locales/zh-tw/workflows.json b/apps/web/src/locales/zh-tw/workflows.json
index 1849e57878..e1f55e41e9 100644
--- a/apps/web/src/locales/zh-tw/workflows.json
+++ b/apps/web/src/locales/zh-tw/workflows.json
@@ -143,6 +143,8 @@
   "promptSourceStepPromptWithTaskDescription": "重新進入「{{stepName}}」會傳送已渲染的步驟提示詞（含任務描述）。",
   "promptSourceTaskDescription": "「{{stepName}}」沒有步驟提示詞，因此重新進入時會傳送任務描述。",
   "pullFrom": "拉取自",
+  "pullFromGuidanceWithFeeder": "可選的自動饋送入口。目標佇列中的任務優先獲得准入；有容量時，Kandev 再從 {{feeder}} 拉取符合條件的工作。直接移動和自動轉換會在目標步驟排隊，不需要饋送步驟。新任務在目標步驟已滿時使用此饋送步驟。",
+  "pullFromGuidanceWithoutFeeder": "未選擇饋送步驟。目標步驟已滿時，直接移動和自動轉換會在此目標佇列中排隊。新任務也會留在此佇列中，直到有可用容量。",
   "readOnlyManagedBySync": "只讀；由工作流程同步管理",
   "readOnlyManagedByImproveKandev": "只讀；由 Improve Kandev 管理",
   "remove": "移除",
@@ -260,8 +262,6 @@
   "workflowsSectionDescription": "建立帶自動流轉的自主流水線，或由你手動移動任務的手動工作流程",
   "workflowSteps": "工作流程步驟",
   "workflowSyncCompleted": "工作流程同步完成",
-  "pullFromGuidanceWithFeeder": "可選的自動饋送入口。目標佇列中的任務優先獲得准入；有容量時，Kandev 再從 {{feeder}} 拉取符合條件的工作。直接移動和自動轉換會在目標步驟排隊，不需要饋送步驟。新任務在目標步驟已滿時使用此饋送步驟。",
-  "pullFromGuidanceWithoutFeeder": "未選擇饋送步驟。目標步驟已滿時，直接移動和自動轉換會在此目標佇列中排隊。新任務也會留在此佇列中，直到有可用容量。",
   "loadingSteps": "正在載入步驟…",
   "noStepsInThisWorkflow": "該工作流程沒有步驟",
   "selectAWorkflowFirst": "請先選擇一個工作流程"
diff --git a/docs/plans/github-pr-merge-queue/plan.md b/docs/plans/github-pr-merge-queue/plan.md
new file mode 100644
index 0000000000..c80ed98308
--- /dev/null
+++ b/docs/plans/github-pr-merge-queue/plan.md
@@ -0,0 +1,133 @@
+---
+spec: docs/specs/github-pr-merge-queue/spec.md
+created: 2026-08-17
+status: complete
+---
+
+# Implementation Plan: GitHub PR Merge Queue
+
+## Overview
+
+Extend the existing GitHub merge boundary to use GitHub's asynchronous,
+queue-aware merge request and return a typed merged-or-queued outcome. Then
+reuse that outcome in the existing PR merge button across the desktop detail,
+compact status, and mobile Review surfaces, with targeted unit and E2E proof.
+
+## Backend
+
+### Provider client contract
+
+- Update `apps/backend/internal/github/client.go` so the merge operation returns
+  a typed outcome rather than only an error.
+- Update `apps/backend/internal/github/gh_client.go` and
+  `apps/backend/internal/github/pat_client.go` to call
+  `PUT /repos/:owner/:repo/pulls/:number/merge-async` with
+  `merge_action=default`, preserve the selected `merge_method`, and normalize
+  GitHub's accepted, already-queued, and already-merged response shapes.
+- Update `apps/backend/internal/github/mock_client.go` and
+  `apps/backend/internal/github/noop_client.go` for the same contract so local
+  and E2E behavior remains deterministic.
+
+### Service and HTTP response
+
+- Update `apps/backend/internal/github/service_pr.go` to propagate the typed
+  outcome while retaining workspace scope checks, personal-write credential
+  routing, merge-method fallback, and cache invalidation.
+- Update `apps/backend/internal/github/controller.go` to return
+  `{"status":"merged"}` or `{"status":"queued"}` and retain the existing
+  operational-auth and provider-error mapping.
+
+## Frontend
+
+### Queue-aware merge action
+
+- Update `apps/web/lib/api/domains/github-pr-api.ts` and the re-exporting API
+  module to type the merged-or-queued response.
+- Update `apps/web/components/github/pr-task-icon.tsx` with a tested eligibility
+  predicate that permits a queue-required branch only after explicit successful
+  checks and satisfied reviews, while continuing to reject drafts, conflicts,
+  behind branches, changes requested, and incomplete review/check gates.
+- Update `apps/web/components/github/pr-merge-button.tsx` to render for direct or
+  queued eligibility, show the outcome-specific notification, suppress repeat
+  submission after acceptance, and refresh the PR state.
+- Add the new action and outcome copy to all locale catalogs under
+  `apps/web/src/locales/*/github.json`; generate the Traditional Chinese pair
+  through the repository script rather than translating them independently.
+
+### Mobile design contract
+
+- Desktop outcome: the existing PR detail header and compact status surface
+  expose one merge action whose result says merged or queued.
+- Mobile entry point: the task's existing Review bottom-navigation destination.
+- Nearest shipped exemplar: the existing full-height mobile Review surface and
+  `PRMergeButton`; retain its single internal scroll owner and shared PR state.
+- Information hierarchy: PR status and blockers remain above the primary merge
+  action; the action is the terminal operation for an eligible PR.
+- Presentation: retain direct navigation to the full-height Review surface
+  because PR review is dense primary content, not a temporary picker.
+- Geometry: keep the existing dynamic-height/safe-area behavior, avoid document
+  horizontal overflow, and preserve a touch target at least 44px high on phone.
+- Shared logic: eligibility, mutation, result handling, and refresh remain
+  shared; only the existing responsive composition differs.
+
+## Tests
+
+- **What:** PAT and `gh` clients send `merge-async`, `merge_action=default`, and
+  the chosen merge method, and normalize direct, queued, and idempotent results.
+  **Files:** `apps/backend/internal/github/pat_client_writes_test.go`,
+  `apps/backend/internal/github/gh_client_commands_test.go`. **How:** focused
+  HTTP/command capture tests with representative GitHub responses.
+- **What:** service preserves method resolution and cache invalidation while
+  returning the provider outcome. **File:**
+  `apps/backend/internal/github/service_pr_test.go`. **How:** table-driven unit
+  tests with the stub client.
+- **What:** HTTP validation, outcome JSON, auth routing, and provider errors.
+  **File:** `apps/backend/internal/github/controller_test.go`. **How:** handler
+  tests for merged, queued, malformed method, and rejection paths.
+- **What:** frontend API response typing and queue eligibility boundaries.
+  **Files:** `apps/web/lib/api/domains/github-api.test.ts`,
+  `apps/web/components/github/pr-task-icon.test.ts`. **How:** request capture and
+  table-driven predicate tests.
+- **What:** button notifications, accepted-state suppression, retry behavior,
+  and refresh callback. **File:**
+  `apps/web/components/github/pr-merge-button.test.tsx`. **How:** component tests
+  with mocked API outcomes.
+
+## E2E Tests
+
+- **Scenario:** eligible direct merge reports merged. **File:**
+  `apps/web/e2e/tests/pr/pr-merge-queue.spec.ts`. **What to verify:** the desktop
+  PR surface exposes the action, submits it, and shows the merged notification.
+- **Scenario:** queue-required merge reports queued and does not resubmit.
+  **File:** `apps/web/e2e/tests/pr/pr-merge-queue.spec.ts`. **What to verify:**
+  the desktop action remains available for the queue-required state and the
+  accepted queue notification is shown once.
+- **Scenario:** phone Review surface provides the same queued outcome. **File:**
+  `apps/web/e2e/tests/pr/mobile-pr-merge-queue.spec.ts`. **What to verify:**
+  Review navigation, touch activation, queued notification, a touch-sized
+  action, and no document horizontal overflow.
+
+## Verification Results
+
+- Backend: `make -C apps/backend test ARGS='./internal/github/...'` passed; the
+  Make target executed the full backend `go test -tags fts5 ./...` suite.
+- Frontend: 96 focused Vitest tests passed; `pnpm run i18n:check` and
+  `pnpm run typecheck` passed.
+- Desktop E2E: `pnpm e2e:run --no-build tests/pr/pr-merge-queue.spec.ts`
+  passed (1 test).
+- Mobile E2E: `pnpm e2e:run --no-build --project mobile-chrome
+  tests/pr/mobile-pr-merge-queue.spec.ts` passed (1 test).
+
+## Implementation Waves And Parallel Candidates
+
+Wave 1:
+- [x] [task-01-backend-queue-aware-merge](task-01-backend-queue-aware-merge.md)
+
+Wave 2:
+- [x] [task-02-frontend-merge-outcomes](task-02-frontend-merge-outcomes.md)
+
+Wave 3:
+- [x] [task-03-desktop-mobile-e2e](task-03-desktop-mobile-e2e.md)
+
+Execution is sequential in the primary conversation unless the user explicitly
+authorizes subagents.
diff --git a/docs/plans/github-pr-merge-queue/task-01-backend-queue-aware-merge.md b/docs/plans/github-pr-merge-queue/task-01-backend-queue-aware-merge.md
new file mode 100644
index 0000000000..d285388e85
--- /dev/null
+++ b/docs/plans/github-pr-merge-queue/task-01-backend-queue-aware-merge.md
@@ -0,0 +1,55 @@
+---
+id: "01-backend-queue-aware-merge"
+title: "Backend queue-aware merge"
+status: done
+wave: 1
+depends_on: []
+plan: "plan.md"
+spec: "../../specs/github-pr-merge-queue/spec.md"
+---
+
+# Task 01: Backend Queue-Aware Merge
+
+## Inputs
+
+- `docs/specs/github-pr-merge-queue/spec.md`
+- `docs/plans/github-pr-merge-queue/plan.md`
+- `apps/backend/AGENTS.md`
+
+## Likely Files
+
+- `apps/backend/internal/github/client.go`
+- `apps/backend/internal/github/gh_client.go`
+- `apps/backend/internal/github/pat_client.go`
+- `apps/backend/internal/github/mock_client.go`
+- `apps/backend/internal/github/noop_client.go`
+- `apps/backend/internal/github/service_pr.go`
+- `apps/backend/internal/github/controller.go`
+- Their focused `*_test.go` files
+
+## Acceptance
+
+- GitHub merge requests use the asynchronous endpoint with
+  `merge_action=default` and preserve allowed merge-method selection.
+- Provider responses normalize to explicit `merged` or `queued` outcomes,
+  including already-queued idempotency, and unknown results fail closed.
+- The workspace-scoped HTTP endpoint returns the normalized outcome while
+  retaining auth routing, cache invalidation, validation, and error mapping.
+
+## Verification
+
+```bash
+make -C apps/backend test ARGS='./internal/github/...'
+```
+
+## Dependencies And Risks
+
+- No task dependency.
+- GitHub's asynchronous API response shapes and HTTP statuses must be captured
+  from the official contract rather than inferred from the synchronous API.
+- Both PAT and `gh` CLI transports must remain behaviorally identical.
+
+## Results
+
+- `make -C apps/backend test ARGS='./internal/github/...'` passed (the Make
+  target executed the full backend `go test -tags fts5 ./...` suite).
diff --git a/docs/plans/github-pr-merge-queue/task-02-frontend-merge-outcomes.md b/docs/plans/github-pr-merge-queue/task-02-frontend-merge-outcomes.md
new file mode 100644
index 0000000000..356f3cc5e3
--- /dev/null
+++ b/docs/plans/github-pr-merge-queue/task-02-frontend-merge-outcomes.md
@@ -0,0 +1,65 @@
+---
+id: "02-frontend-merge-outcomes"
+title: "Frontend merge outcomes"
+status: done
+wave: 2
+depends_on: ["01-backend-queue-aware-merge"]
+plan: "plan.md"
+spec: "../../specs/github-pr-merge-queue/spec.md"
+---
+
+# Task 02: Frontend Merge Outcomes
+
+## Inputs
+
+- `docs/specs/github-pr-merge-queue/spec.md`
+- `docs/plans/github-pr-merge-queue/plan.md`
+- `apps/web/AGENTS.md`
+- `.agents/skills/mobile-parity/references/kandev-mobile-ui-language.md`
+
+## Likely Files
+
+- `apps/web/lib/api/domains/github-pr-api.ts`
+- `apps/web/lib/api/domains/github-api.test.ts`
+- `apps/web/components/github/pr-task-icon.tsx`
+- `apps/web/components/github/pr-task-icon.test.ts`
+- `apps/web/components/github/pr-merge-button.tsx`
+- `apps/web/components/github/pr-merge-button.test.tsx`
+- `apps/web/src/locales/*/github.json`
+
+## Acceptance
+
+- The existing merge action appears for direct-merge and queue-required PRs
+  only after explicit successful checks and satisfied review requirements.
+- Accepted outcomes show distinct localized merged or queued feedback, refresh
+  PR state, and prevent duplicate submission; rejected requests remain retryable.
+- Desktop, compact, and mobile Review surfaces reuse the same mutation and
+  eligibility behavior with accessible, touch-usable controls.
+
+## Verification
+
+```bash
+cd apps && pnpm install --frozen-lockfile && pnpm --filter @kandev/web test -- lib/api/domains/github-api.test.ts components/github/pr-task-icon.test.ts components/github/pr-merge-button.test.tsx && cd web && pnpm run i18n:check && pnpm run typecheck
+```
+
+## Dependencies And Risks
+
+- Depends on Task 01's response contract.
+- `mergeable_state=blocked` is overloaded; the frontend predicate must not turn
+  failed protection, missing review, or changes-requested states into queue
+  actions.
+- Locale key parity is build-gated across all supported languages.
+
+## Results
+
+- `pnpm --filter @kandev/web test -- --run lib/api/domains/github-api.test.ts components/github/pr-task-icon.test.ts` passed: 96 tests.
+- `pnpm run i18n:check` passed with all supported catalogs complete.
+- `pnpm run typecheck` passed.
+- Review remediation keeps GitHub's overloaded `blocked` state visually neutral
+  and labels the pre-submit action `Merge PR`; only the accepted response claims
+  that GitHub added the PR to its merge queue.
+- Queue feedback is driven by GitHub's terminal `enqueued` result, not
+  asynchronous `pending` acceptance.
+- Focused terminal-outcome coverage passes for merged, queued, rejected, and
+  duplicate-click paths. The full frontend suite passed 12,046 tests across
+  1,455 files, with four skips.
diff --git a/docs/plans/github-pr-merge-queue/task-03-desktop-mobile-e2e.md b/docs/plans/github-pr-merge-queue/task-03-desktop-mobile-e2e.md
new file mode 100644
index 0000000000..706d1cc3cd
--- /dev/null
+++ b/docs/plans/github-pr-merge-queue/task-03-desktop-mobile-e2e.md
@@ -0,0 +1,59 @@
+---
+id: "03-desktop-mobile-e2e"
+title: "Desktop and mobile merge E2E"
+status: done
+wave: 3
+depends_on: ["01-backend-queue-aware-merge", "02-frontend-merge-outcomes"]
+plan: "plan.md"
+spec: "../../specs/github-pr-merge-queue/spec.md"
+---
+
+# Task 03: Desktop And Mobile Merge E2E
+
+## Inputs
+
+- `docs/specs/github-pr-merge-queue/spec.md`
+- `docs/plans/github-pr-merge-queue/plan.md`
+- `.agents/skills/e2e/SKILL.md`
+- `.agents/skills/mobile-parity/SKILL.md`
+
+## Likely Files
+
+- `apps/web/e2e/tests/pr/pr-merge-queue.spec.ts`
+- `apps/web/e2e/tests/pr/mobile-pr-merge-queue.spec.ts`
+- `apps/web/e2e/helpers/api-client.ts` or GitHub mock fixtures if response
+  configuration needs a new seed helper
+
+## Acceptance
+
+- Desktop E2E proves merge-queue acceptance from the existing PR UI.
+- Component coverage proves immediate merge feedback and duplicate-submission
+  suppression without duplicating those deterministic cases in Playwright.
+- Mobile E2E reaches the same queued outcome through Review using touch and
+  verifies action size and absence of horizontal document overflow.
+- The managed runner builds fresh backend/frontend artifacts and both focused
+  projects pass without retries masking failures.
+
+## Verification
+
+```bash
+cd apps && pnpm install --frozen-lockfile && cd web && pnpm e2e:run tests/pr/pr-merge-queue.spec.ts && pnpm e2e:run --project mobile-chrome tests/pr/mobile-pr-merge-queue.spec.ts
+```
+
+## Dependencies And Risks
+
+- Depends on Tasks 01 and 02.
+- The mock GitHub server must represent queue-required and accepted-queue
+  states without relying on real GitHub credentials.
+- The mobile project only discovers `mobile-*.spec.ts` files; verify the
+  reported test count before recording success.
+
+## Results
+
+- Desktop managed E2E passed with one discovered test.
+- Mobile Chrome managed E2E passed with one discovered test, including the
+  touch action, minimum target height, and horizontal-overflow assertions.
+- `pnpm run typecheck` passed after the final E2E helper and spec changes.
+- Isolated desktop and mobile screenshots were captured under
+  `/tmp/kandev-merge-queue-screenshots-20260817/`; capture-only test hooks were
+  removed and both specs passed again afterward.
diff --git a/docs/specs/github-pr-merge-queue/spec.md b/docs/specs/github-pr-merge-queue/spec.md
new file mode 100644
index 0000000000..4b86493139
--- /dev/null
+++ b/docs/specs/github-pr-merge-queue/spec.md
@@ -0,0 +1,117 @@
+---
+status: building
+created: 2026-08-17
+owner: Kandev
+---
+
+# GitHub PR Merge Queue
+
+## Why
+
+Users can merge an eligible GitHub pull request from Kandev, but repositories
+that require GitHub's merge queue leave the same pull request looking blocked
+and force the user to leave Kandev. The merge action should respect the
+repository's GitHub rules and complete through the appropriate direct or queued
+path.
+
+## What
+
+- An open, approved pull request with successful required checks exposes its
+  merge action in the existing GitHub PR detail and compact status surfaces,
+  including when GitHub reports it blocked only because the base branch uses a
+  merge queue.
+- Activating the action asks GitHub to choose the appropriate merge behavior:
+  merge immediately where permitted or add the pull request to the configured
+  merge queue.
+- A direct merge reports that the pull request merged. An accepted queued merge
+  reports that the pull request was added to the merge queue and prevents
+  repeated submission while local PR state refreshes.
+- The action remains unavailable for drafts, conflicts, changes requested,
+  failed or incomplete required checks, and unmet required reviews.
+- GitHub remains authoritative for final eligibility. A rejected request leaves
+  the action retryable and shows GitHub's error without claiming that the pull
+  request merged or entered the queue.
+- Desktop and mobile use the existing PR detail behavior. On phones, the action
+  remains available through the full-height Review surface with a touch-sized
+  target and no horizontal document overflow.
+
+## API Surface
+
+Kandev retains the existing endpoint and extends its success response:
+
+```http
+PUT /api/v1/github/prs/:owner/:repo/:number/merge?workspace_id=:workspaceId
+Content-Type: application/json
+
+{"merge_method":"squash"}
+```
+
+- `merge_method` remains optional and accepts `merge`, `squash`, or `rebase`.
+- Kandev submits the request through GitHub's asynchronous merge API with
+  `merge_action=default`, allowing GitHub to select direct merge or merge queue.
+- Success returns `200` with one of:
+
+```json
+{"status":"merged"}
+{"status":"queued"}
+```
+
+- A `pending` response includes a UUID. Kandev polls that request, including
+  the UUID returned by an existing-request `409`, until GitHub reports
+  `merged`, `enqueued`, or `failed`.
+- Only `enqueued` maps to `queued`. An already-merged pull request maps to
+  `merged`, while `failed` remains an error that the user can retry.
+
+## Permissions
+
+The action uses the active workspace's personal-write GitHub routing and
+requires the same GitHub content/pull-request permissions as the provider's
+merge API. Kandev does not bypass repository rules or elevate the user.
+
+## Failure Modes
+
+- Missing GitHub credentials or required permissions return a non-success
+  response, surface a useful error, and leave the action retryable.
+- GitHub validation, readiness, rate-limit, or transport failures do not change
+  local PR state and do not show a success notification.
+- An unrecognized successful provider status fails closed rather than claiming
+  that the pull request merged or entered the queue.
+- After an accepted request, Kandev invalidates cached PR feedback/status and
+  refreshes the linked pull request; the GitHub poller remains authoritative
+  for its eventual merged state.
+
+## Scenarios
+
+- **GIVEN** an approved open PR with successful required checks on a branch
+  without a required merge queue, **WHEN** the user activates the merge action,
+  **THEN** GitHub merges it and Kandev reports that the PR merged.
+- **GIVEN** an approved open PR with successful required checks on a branch
+  that requires a merge queue, **WHEN** the user activates the merge action,
+  **THEN** GitHub accepts it into the queue and Kandev reports that the PR was
+  added to the merge queue.
+- **GIVEN** a PR already in the merge queue, **WHEN** the merge request is
+  repeated, **THEN** Kandev treats GitHub's idempotent response as queued and
+  does not report a failure.
+- **GIVEN** a draft, conflicted PR, failed checks, changes requested, or missing
+  required approvals, **WHEN** the PR surface renders, **THEN** no merge or
+  queue action is available.
+- **GIVEN** GitHub rejects an otherwise eligible merge request, **WHEN** the
+  action completes, **THEN** Kandev shows the provider error and leaves the
+  action available for retry.
+- **GIVEN** a phone-sized task view with an eligible queue-required PR, **WHEN**
+  the user opens Review and activates the action, **THEN** the queued outcome is
+  visible, the action is touch-usable, and the document has no horizontal
+  overflow.
+
+## Out of Scope
+
+- Displaying queue position, estimated merge time, or the full merge queue.
+- Removing a pull request from the merge queue.
+- Selecting between direct merge and merge queue when GitHub policy permits
+  both; GitHub's `default` behavior remains authoritative.
+- Changing Kandev's independent CI auto-merge automation setting.
+- GitLab merge-request behavior.
+
+## Implementation Plan
+
+[Implementation plan](../../plans/github-pr-merge-queue/plan.md)