diff --git a/apps/backend/internal/github/controller.go b/apps/backend/internal/github/controller.go
index 972039c843..09e6a70b3c 100644
--- a/apps/backend/internal/github/controller.go
+++ b/apps/backend/internal/github/controller.go
@@ -92,6 +92,7 @@ func (c *Controller) RegisterHTTPRoutes(router *gin.Engine) {
 	api.POST("/action-presets/reset", c.httpResetActionPresets)
 	api.GET("/workspace-settings", c.httpGetWorkspaceSettings)
 	api.PUT("/workspace-settings", c.httpUpdateWorkspaceSettings)
+	api.POST("/workspace-settings/copy", c.httpCopyWorkspaceSettings)
 
 	api.GET("/stats", c.httpGetStats)
 }
@@ -898,6 +899,41 @@ func (c *Controller) httpUpdateWorkspaceSettings(ctx *gin.Context) {
 	ctx.JSON(http.StatusOK, settings)
 }
 
+// copyWorkspaceSettingsRequest carries the target workspace for a copy. The
+// source workspace comes from the workspace_id query param, matching the other
+// integration copy endpoints.
+type copyWorkspaceSettingsRequest struct {
+	TargetWorkspaceID string `json:"targetWorkspaceId"`
+}
+
+func (c *Controller) httpCopyWorkspaceSettings(ctx *gin.Context) {
+	source := strings.TrimSpace(ctx.Query("workspace_id"))
+	if source == "" {
+		ctx.JSON(http.StatusBadRequest, gin.H{"error": "workspace_id query parameter required"})
+		return
+	}
+	var req copyWorkspaceSettingsRequest
+	if err := ctx.ShouldBindJSON(&req); err != nil {
+		ctx.JSON(http.StatusBadRequest, gin.H{"error": "invalid payload"})
+		return
+	}
+	if strings.TrimSpace(req.TargetWorkspaceID) == "" {
+		ctx.JSON(http.StatusBadRequest, gin.H{"error": "targetWorkspaceId required"})
+		return
+	}
+	settings, err := c.service.CopyWorkspaceSettingsToWorkspace(ctx.Request.Context(), source, req.TargetWorkspaceID)
+	if err != nil {
+		status := http.StatusInternalServerError
+		switch {
+		case errors.Is(err, ErrSameWorkspace), errors.Is(err, ErrWorkspaceSettingsValidation):
+			status = http.StatusBadRequest
+		}
+		ctx.JSON(status, gin.H{"error": err.Error()})
+		return
+	}
+	ctx.JSON(http.StatusOK, settings)
+}
+
 // parsePaginationQuery reads `page` and `per_page` query params. Missing or
 // non-positive values fall back to defaults (page=1, perPage=50). The upper
 // bound for perPage (100) is applied later by clampSearchPage in the client
diff --git a/apps/backend/internal/github/copy.go b/apps/backend/internal/github/copy.go
new file mode 100644
index 0000000000..c4d3504951
--- /dev/null
+++ b/apps/backend/internal/github/copy.go
@@ -0,0 +1,83 @@
+package github
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"strings"
+)
+
+// ErrSameWorkspace is returned when a copy targets the same workspace it reads
+// from.
+var ErrSameWorkspace = errors.New("github: source and target workspaces are the same")
+
+// CopyWorkspaceSettingsToWorkspace copies the per-workspace GitHub operational
+// settings (repo scope + saved/default query presets) and the workspace's
+// quick-action presets from sourceWorkspaceID to targetWorkspaceID. GitHub
+// authentication is install-wide, so there are no credentials to copy — only the
+// workspace-scoped settings. Watchers are intentionally out of scope.
+func (s *Service) CopyWorkspaceSettingsToWorkspace(ctx context.Context, sourceWorkspaceID, targetWorkspaceID string) (*WorkspaceSettings, error) {
+	sourceWorkspaceID = strings.TrimSpace(sourceWorkspaceID)
+	targetWorkspaceID = strings.TrimSpace(targetWorkspaceID)
+	if sourceWorkspaceID == "" || targetWorkspaceID == "" {
+		return nil, fmt.Errorf("%w: source and target workspace ids are required", ErrWorkspaceSettingsValidation)
+	}
+	if sourceWorkspaceID == targetWorkspaceID {
+		return nil, ErrSameWorkspace
+	}
+	if s.store == nil {
+		return nil, fmt.Errorf("github store not configured")
+	}
+	// GetWorkspaceSettings returns defaults (never nil) for a missing row.
+	source, err := s.store.GetWorkspaceSettings(ctx, sourceWorkspaceID)
+	if err != nil {
+		return nil, fmt.Errorf("read source github settings: %w", err)
+	}
+	target := &WorkspaceSettings{
+		WorkspaceID:         targetWorkspaceID,
+		RepoScopeMode:       source.RepoScopeMode,
+		RepoScopeOrgs:       append([]string(nil), source.RepoScopeOrgs...),
+		RepoScopeRepos:      append([]RepoFilter(nil), source.RepoScopeRepos...),
+		SavedPresets:        cloneRawMessage(source.SavedPresets),
+		DefaultQueryPresets: cloneRawMessage(source.DefaultQueryPresets),
+	}
+	// Copy the action presets before the workspace-settings write. These are two
+	// separate store writes without a shared transaction, so ordering the
+	// preset copy first means a preset failure leaves the target completely
+	// untouched; only a failure of the final settings write can leave a partial
+	// copy, and a full retry overwrites both.
+	if err := s.copyActionPresets(ctx, sourceWorkspaceID, targetWorkspaceID); err != nil {
+		return nil, err
+	}
+	if err := s.store.UpsertWorkspaceSettings(ctx, target); err != nil {
+		return nil, fmt.Errorf("write target github settings: %w", err)
+	}
+	return s.store.GetWorkspaceSettings(ctx, targetWorkspaceID)
+}
+
+// copyActionPresets duplicates the source workspace's stored quick-action
+// presets onto the target. When the source has no stored row it relies on
+// built-in defaults, so the target's row is cleared as well — otherwise a copy
+// would leave the target on its own customised presets while reporting success,
+// diverging from the source. Both then fall back to the same defaults on read.
+func (s *Service) copyActionPresets(ctx context.Context, sourceWorkspaceID, targetWorkspaceID string) error {
+	stored, err := s.store.GetActionPresets(ctx, sourceWorkspaceID)
+	if err != nil {
+		return fmt.Errorf("read source github action presets: %w", err)
+	}
+	if stored == nil {
+		if err := s.store.DeleteActionPresets(ctx, targetWorkspaceID); err != nil {
+			return fmt.Errorf("clear target github action presets: %w", err)
+		}
+		return nil
+	}
+	target := &ActionPresets{
+		WorkspaceID: targetWorkspaceID,
+		PR:          append([]ActionPreset(nil), stored.PR...),
+		Issue:       append([]ActionPreset(nil), stored.Issue...),
+	}
+	if err := s.store.UpsertActionPresets(ctx, target); err != nil {
+		return fmt.Errorf("write target github action presets: %w", err)
+	}
+	return nil
+}
diff --git a/apps/backend/internal/github/copy_test.go b/apps/backend/internal/github/copy_test.go
new file mode 100644
index 0000000000..23b2c6f2a6
--- /dev/null
+++ b/apps/backend/internal/github/copy_test.go
@@ -0,0 +1,117 @@
+package github
+
+import (
+	"context"
+	"errors"
+	"testing"
+)
+
+func newCopyTestService(t *testing.T) *Service {
+	t.Helper()
+	client := NewMockClient()
+	store := newTestStore(t)
+	return NewService(client, AuthMethodPAT, nil, store, nil, testLogger(t))
+}
+
+func TestCopyWorkspaceSettingsToWorkspace_CopiesSettings(t *testing.T) {
+	svc := newCopyTestService(t)
+	ctx := context.Background()
+	const src, dst = "ws-src", "ws-dst"
+
+	if err := svc.UpsertWorkspaceSettings(ctx, &WorkspaceSettings{
+		WorkspaceID:         src,
+		RepoScopeMode:       RepoScopeModeRepos,
+		RepoScopeRepos:      []RepoFilter{{Owner: "kdlbs", Name: "kandev"}},
+		SavedPresets:        []byte(`[{"id":"p1","kind":"pr","label":"Mine"}]`),
+		DefaultQueryPresets: []byte(`{"pr":[],"issue":[]}`),
+	}); err != nil {
+		t.Fatalf("seed source: %v", err)
+	}
+	if _, err := svc.UpdateActionPresets(ctx, &UpdateActionPresetsRequest{
+		WorkspaceID: src,
+		PR:          &[]ActionPreset{{ID: "custom", Label: "Custom", PromptTemplate: "do {{url}}"}},
+	}); err != nil {
+		t.Fatalf("seed source action presets: %v", err)
+	}
+
+	got, err := svc.CopyWorkspaceSettingsToWorkspace(ctx, src, dst)
+	if err != nil {
+		t.Fatalf("copy: %v", err)
+	}
+	if got.WorkspaceID != dst || got.RepoScopeMode != RepoScopeModeRepos {
+		t.Errorf("copied settings identity/scope mismatch: %+v", got)
+	}
+	if len(got.RepoScopeRepos) != 1 || got.RepoScopeRepos[0].Owner != "kdlbs" ||
+		got.RepoScopeRepos[0].Name != "kandev" {
+		t.Errorf("repo scope not copied: %+v", got.RepoScopeRepos)
+	}
+	if string(got.SavedPresets) != `[{"id":"p1","kind":"pr","label":"Mine"}]` {
+		t.Errorf("saved presets not copied: %s", got.SavedPresets)
+	}
+	if string(got.DefaultQueryPresets) != `{"pr":[],"issue":[]}` {
+		t.Errorf("default query presets not copied: %s", got.DefaultQueryPresets)
+	}
+
+	presets, err := svc.GetActionPresets(ctx, dst)
+	if err != nil {
+		t.Fatalf("get copied action presets: %v", err)
+	}
+	if len(presets.PR) != 1 || presets.PR[0].ID != "custom" {
+		t.Errorf("action presets not copied: %+v", presets.PR)
+	}
+}
+
+// When the source relies on default presets (no stored row), the copy must
+// clear the target's customised presets so both fall back to the same defaults —
+// otherwise the copy silently leaves the target diverged from the source.
+func TestCopyWorkspaceSettingsToWorkspace_ClearsTargetPresetsWhenSourceHasNone(t *testing.T) {
+	svc := newCopyTestService(t)
+	ctx := context.Background()
+	const src, dst = "ws-src", "ws-dst"
+
+	// Target has customised presets; source has none stored.
+	if _, err := svc.UpdateActionPresets(ctx, &UpdateActionPresetsRequest{
+		WorkspaceID: dst,
+		PR:          &[]ActionPreset{{ID: "target-custom", Label: "Target", PromptTemplate: "x {{url}}"}},
+	}); err != nil {
+		t.Fatalf("seed target action presets: %v", err)
+	}
+
+	if _, err := svc.CopyWorkspaceSettingsToWorkspace(ctx, src, dst); err != nil {
+		t.Fatalf("copy: %v", err)
+	}
+
+	defaults, err := svc.GetActionPresets(ctx, "ws-fresh")
+	if err != nil {
+		t.Fatalf("get default presets: %v", err)
+	}
+	got, err := svc.GetActionPresets(ctx, dst)
+	if err != nil {
+		t.Fatalf("get target presets: %v", err)
+	}
+	if len(got.PR) != len(defaults.PR) {
+		t.Errorf("target presets not reset to defaults: got %d, want %d", len(got.PR), len(defaults.PR))
+	}
+	for _, p := range got.PR {
+		if p.ID == "target-custom" {
+			t.Errorf("target retained its customised preset after copy from a source with none")
+		}
+	}
+}
+
+func TestCopyWorkspaceSettingsToWorkspace_SameWorkspace(t *testing.T) {
+	svc := newCopyTestService(t)
+	if _, err := svc.CopyWorkspaceSettingsToWorkspace(context.Background(), "ws-1", "ws-1"); !errors.Is(err, ErrSameWorkspace) {
+		t.Fatalf("expected ErrSameWorkspace, got %v", err)
+	}
+}
+
+func TestCopyWorkspaceSettingsToWorkspace_MissingIDs(t *testing.T) {
+	svc := newCopyTestService(t)
+	if _, err := svc.CopyWorkspaceSettingsToWorkspace(context.Background(), "", "ws-dst"); !errors.Is(err, ErrWorkspaceSettingsValidation) {
+		t.Fatalf("expected ErrWorkspaceSettingsValidation for empty source, got %v", err)
+	}
+	if _, err := svc.CopyWorkspaceSettingsToWorkspace(context.Background(), "ws-src", ""); !errors.Is(err, ErrWorkspaceSettingsValidation) {
+		t.Fatalf("expected ErrWorkspaceSettingsValidation for empty destination, got %v", err)
+	}
+}
diff --git a/apps/backend/internal/jira/copy.go b/apps/backend/internal/jira/copy.go
new file mode 100644
index 0000000000..468e05c73b
--- /dev/null
+++ b/apps/backend/internal/jira/copy.go
@@ -0,0 +1,74 @@
+package jira
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"time"
+)
+
+// ErrSameWorkspace is returned when a copy targets the same workspace it reads
+// from.
+var ErrSameWorkspace = errors.New("jira: source and target workspaces are the same")
+
+// ErrNothingToCopy is returned when the source workspace has no Jira config.
+var ErrNothingToCopy = errors.New("jira: source workspace has no configuration to copy")
+
+// CopyConfigToWorkspace copies the Jira provider config and credential (token)
+// from sourceWorkspaceID to targetWorkspaceID. Watchers are intentionally out
+// of scope — only the connection settings and secret are duplicated.
+func (s *Service) CopyConfigToWorkspace(ctx context.Context, sourceWorkspaceID, targetWorkspaceID string) (*JiraConfig, error) {
+	sourceWorkspaceID, err := s.normalizeWorkspaceID(sourceWorkspaceID)
+	if err != nil {
+		return nil, err
+	}
+	targetWorkspaceID, err = s.normalizeWorkspaceID(targetWorkspaceID)
+	if err != nil {
+		return nil, err
+	}
+	if sourceWorkspaceID == targetWorkspaceID {
+		return nil, ErrSameWorkspace
+	}
+	cfg, err := s.store.GetConfigForWorkspace(ctx, sourceWorkspaceID)
+	if err != nil {
+		return nil, fmt.Errorf("read source jira config: %w", err)
+	}
+	if cfg == nil {
+		return nil, ErrNothingToCopy
+	}
+	secret, err := s.revealSecret(ctx, sourceWorkspaceID)
+	if err != nil {
+		return nil, fmt.Errorf("read source jira secret: %w", err)
+	}
+	// An empty Secret means "keep existing" in SetConfigForWorkspace, so copying
+	// from a workspace without a stored token would leave the target on its old
+	// credential paired with the copied site/email. Treat that as nothing to copy.
+	if secret == "" {
+		return nil, ErrNothingToCopy
+	}
+	req := &SetConfigRequest{
+		SiteURL:           cfg.SiteURL,
+		Email:             cfg.Email,
+		AuthMethod:        cfg.AuthMethod,
+		InstanceType:      cfg.InstanceType,
+		DefaultProjectKey: cfg.DefaultProjectKey,
+		Secret:            secret,
+	}
+	// Mark the target unhealthy before the write so the UI doesn't briefly flash
+	// a stale "connected" state from the target's previous credential while the
+	// async probe kicked off by SetConfigForWorkspace validates the copied one.
+	if err := s.store.UpdateAuthHealthForWorkspace(ctx, targetWorkspaceID, false, "", time.Now().UTC()); err != nil {
+		return nil, fmt.Errorf("reset target jira health: %w", err)
+	}
+	cfgOut, err := s.SetConfigForWorkspace(ctx, targetWorkspaceID, req)
+	if err != nil {
+		// The write failed, so the target's config is unchanged but we already
+		// flipped its health row. Re-probe asynchronously (best effort) so the row
+		// reflects the target's real state again rather than a spurious
+		// "unhealthy", without delaying the error response by the probe timeout.
+		// Detach from the request context, which may already be cancelled.
+		go s.RecordAuthHealthForWorkspace(context.Background(), targetWorkspaceID)
+		return nil, err
+	}
+	return cfgOut, nil
+}
diff --git a/apps/backend/internal/jira/copy_test.go b/apps/backend/internal/jira/copy_test.go
new file mode 100644
index 0000000000..a37b0077d8
--- /dev/null
+++ b/apps/backend/internal/jira/copy_test.go
@@ -0,0 +1,69 @@
+package jira
+
+import (
+	"context"
+	"errors"
+	"testing"
+	"time"
+)
+
+// drainProbe waits for the async auth-health probe fired by a config write so
+// the test does not race the background DB write.
+func drainProbe(t *testing.T, f *svcFixture) {
+	t.Helper()
+	select {
+	case <-f.probed:
+	case <-time.After(2 * time.Second):
+		t.Fatalf("async probe hook did not fire within 2s")
+	}
+}
+
+func TestCopyConfigToWorkspace_CopiesConfigAndSecret(t *testing.T) {
+	f := newSvcFixture(t)
+	ctx := context.Background()
+	const src, dst = "ws-src", "ws-dst"
+
+	if _, err := f.svc.SetConfigForWorkspace(ctx, src, &SetConfigRequest{
+		SiteURL:           "https://acme.atlassian.net",
+		Email:             "u@example.com",
+		AuthMethod:        AuthMethodAPIToken,
+		InstanceType:      InstanceTypeCloud,
+		DefaultProjectKey: "ENG",
+		Secret:            "tok-src",
+	}); err != nil {
+		t.Fatalf("seed source: %v", err)
+	}
+	drainProbe(t, f)
+
+	got, err := f.svc.CopyConfigToWorkspace(ctx, src, dst)
+	if err != nil {
+		t.Fatalf("copy: %v", err)
+	}
+	drainProbe(t, f)
+
+	if got.SiteURL != "https://acme.atlassian.net" || got.Email != "u@example.com" ||
+		got.InstanceType != InstanceTypeCloud || got.DefaultProjectKey != "ENG" {
+		t.Errorf("copied config mismatch: %+v", got)
+	}
+	v, err := f.secrets.Reveal(ctx, SecretKeyForWorkspace(dst))
+	if err != nil {
+		t.Fatalf("reveal copied secret: %v", err)
+	}
+	if v != "tok-src" {
+		t.Errorf("secret not copied: %q", v)
+	}
+}
+
+func TestCopyConfigToWorkspace_SameWorkspace(t *testing.T) {
+	f := newSvcFixture(t)
+	if _, err := f.svc.CopyConfigToWorkspace(context.Background(), "ws-1", "ws-1"); !errors.Is(err, ErrSameWorkspace) {
+		t.Fatalf("expected ErrSameWorkspace, got %v", err)
+	}
+}
+
+func TestCopyConfigToWorkspace_NothingToCopy(t *testing.T) {
+	f := newSvcFixture(t)
+	if _, err := f.svc.CopyConfigToWorkspace(context.Background(), "ws-empty", "ws-dst"); !errors.Is(err, ErrNothingToCopy) {
+		t.Fatalf("expected ErrNothingToCopy, got %v", err)
+	}
+}
diff --git a/apps/backend/internal/jira/handlers.go b/apps/backend/internal/jira/handlers.go
index f1ebaebc7a..637b1380bd 100644
--- a/apps/backend/internal/jira/handlers.go
+++ b/apps/backend/internal/jira/handlers.go
@@ -34,6 +34,7 @@ func (c *Controller) RegisterHTTPRoutes(router *gin.Engine) {
 	api.POST("/config", c.httpSetConfig)
 	api.DELETE("/config", c.httpDeleteConfig)
 	api.POST("/config/test", c.httpTestConfig)
+	api.POST("/config/copy", c.httpCopyConfig)
 	api.GET("/projects", c.httpListProjects)
 	api.GET("/projects/:key/statuses", c.httpListProjectStatuses)
 	api.GET("/tickets", c.httpSearchTickets)
@@ -184,6 +185,42 @@ func (c *Controller) workspaceID(ctx *gin.Context) string {
 	return strings.TrimSpace(ctx.Query("workspace_id"))
 }
 
+// copyConfigRequest is the payload for the copy-config endpoint. The source
+// workspace comes from the workspace_id query param; the body carries the
+// target.
+type copyConfigRequest struct {
+	TargetWorkspaceID string `json:"targetWorkspaceId"`
+}
+
+func (c *Controller) httpCopyConfig(ctx *gin.Context) {
+	sourceWorkspaceID := c.workspaceID(ctx)
+	if sourceWorkspaceID == "" {
+		ctx.JSON(http.StatusBadRequest, gin.H{"error": "workspace_id query parameter required"})
+		return
+	}
+	var req copyConfigRequest
+	if err := ctx.ShouldBindJSON(&req); err != nil {
+		ctx.JSON(http.StatusBadRequest, gin.H{"error": "invalid payload"})
+		return
+	}
+	targetWorkspaceID := strings.TrimSpace(req.TargetWorkspaceID)
+	if targetWorkspaceID == "" {
+		ctx.JSON(http.StatusBadRequest, gin.H{"error": "targetWorkspaceId required"})
+		return
+	}
+	cfg, err := c.service.CopyConfigToWorkspace(ctx.Request.Context(), sourceWorkspaceID, targetWorkspaceID)
+	if err != nil {
+		status := http.StatusInternalServerError
+		switch {
+		case errors.Is(err, ErrSameWorkspace), errors.Is(err, ErrNothingToCopy), errors.Is(err, ErrInvalidConfig):
+			status = http.StatusBadRequest
+		}
+		ctx.JSON(status, gin.H{"error": err.Error()})
+		return
+	}
+	ctx.JSON(http.StatusOK, cfg)
+}
+
 // --- Issue watch HTTP handlers ---
 
 // httpListIssueWatches returns watches scoped to one workspace when
diff --git a/apps/backend/internal/linear/copy.go b/apps/backend/internal/linear/copy.go
new file mode 100644
index 0000000000..af5107a01f
--- /dev/null
+++ b/apps/backend/internal/linear/copy.go
@@ -0,0 +1,71 @@
+package linear
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"time"
+)
+
+// ErrSameWorkspace is returned when a copy targets the same workspace it reads
+// from.
+var ErrSameWorkspace = errors.New("linear: source and target workspaces are the same")
+
+// ErrNothingToCopy is returned when the source workspace has no Linear config.
+var ErrNothingToCopy = errors.New("linear: source workspace has no configuration to copy")
+
+// CopyConfigToWorkspace copies the Linear provider config and credential (API
+// key) from sourceWorkspaceID to targetWorkspaceID. Watchers are intentionally
+// out of scope — only the connection settings and secret are duplicated.
+func (s *Service) CopyConfigToWorkspace(ctx context.Context, sourceWorkspaceID, targetWorkspaceID string) (*LinearConfig, error) {
+	sourceWorkspaceID, err := s.normalizeWorkspaceID(sourceWorkspaceID)
+	if err != nil {
+		return nil, err
+	}
+	targetWorkspaceID, err = s.normalizeWorkspaceID(targetWorkspaceID)
+	if err != nil {
+		return nil, err
+	}
+	if sourceWorkspaceID == targetWorkspaceID {
+		return nil, ErrSameWorkspace
+	}
+	cfg, err := s.store.GetConfigForWorkspace(ctx, sourceWorkspaceID)
+	if err != nil {
+		return nil, fmt.Errorf("read source linear config: %w", err)
+	}
+	if cfg == nil {
+		return nil, ErrNothingToCopy
+	}
+	secret, err := s.revealSecret(ctx, sourceWorkspaceID)
+	if err != nil {
+		return nil, fmt.Errorf("read source linear secret: %w", err)
+	}
+	// An empty Secret means "keep existing" in SetConfigForWorkspace, so copying
+	// from a workspace without a stored API key would leave the target on its old
+	// credential paired with the copied settings. Treat that as nothing to copy.
+	if secret == "" {
+		return nil, ErrNothingToCopy
+	}
+	req := &SetConfigRequest{
+		AuthMethod:     cfg.AuthMethod,
+		DefaultTeamKey: cfg.DefaultTeamKey,
+		Secret:         secret,
+	}
+	// Mark the target unhealthy before the write so the UI doesn't briefly flash
+	// a stale "connected" state (from a previously connected org) while the async
+	// probe kicked off by SetConfigForWorkspace validates the copied credential.
+	if err := s.store.UpdateAuthHealthForWorkspace(ctx, targetWorkspaceID, false, "", "", time.Now().UTC()); err != nil {
+		return nil, fmt.Errorf("reset target linear health: %w", err)
+	}
+	cfgOut, err := s.SetConfigForWorkspace(ctx, targetWorkspaceID, req)
+	if err != nil {
+		// The write failed, so the target's config is unchanged but we already
+		// flipped its health row. Re-probe asynchronously (best effort) so the row
+		// reflects the target's real state again rather than a spurious
+		// "unhealthy", without delaying the error response by the probe timeout.
+		// Detach from the request context, which may already be cancelled.
+		go s.RecordAuthHealthForWorkspace(context.Background(), targetWorkspaceID)
+		return nil, err
+	}
+	return cfgOut, nil
+}
diff --git a/apps/backend/internal/linear/copy_test.go b/apps/backend/internal/linear/copy_test.go
new file mode 100644
index 0000000000..9507fc7850
--- /dev/null
+++ b/apps/backend/internal/linear/copy_test.go
@@ -0,0 +1,93 @@
+package linear
+
+import (
+	"context"
+	"errors"
+	"testing"
+	"time"
+)
+
+// drainProbe waits for the async auth-health probe fired by a config write.
+func drainProbe(t *testing.T, f *svcFixture) {
+	t.Helper()
+	select {
+	case <-f.probed:
+	case <-time.After(2 * time.Second):
+		t.Fatalf("async probe hook did not fire within 2s")
+	}
+}
+
+func TestCopyConfigToWorkspace_CopiesConfigAndSecret(t *testing.T) {
+	f := newSvcFixture(t)
+	ctx := context.Background()
+	const src, dst = "ws-src", "ws-dst"
+
+	if _, err := f.svc.SetConfigForWorkspace(ctx, src, &SetConfigRequest{
+		AuthMethod:     AuthMethodAPIKey,
+		DefaultTeamKey: "ENG",
+		Secret:         "lin-src",
+	}); err != nil {
+		t.Fatalf("seed source: %v", err)
+	}
+	drainProbe(t, f)
+
+	got, err := f.svc.CopyConfigToWorkspace(ctx, src, dst)
+	if err != nil {
+		t.Fatalf("copy: %v", err)
+	}
+	drainProbe(t, f)
+
+	if got.DefaultTeamKey != "ENG" || got.AuthMethod != AuthMethodAPIKey {
+		t.Errorf("copied config mismatch: %+v", got)
+	}
+	v, err := f.secrets.Reveal(ctx, SecretKeyForWorkspace(dst))
+	if err != nil {
+		t.Fatalf("reveal copied secret: %v", err)
+	}
+	if v != "lin-src" {
+		t.Errorf("secret not copied: %q", v)
+	}
+}
+
+func TestCopyConfigToWorkspace_SameWorkspace(t *testing.T) {
+	f := newSvcFixture(t)
+	if _, err := f.svc.CopyConfigToWorkspace(context.Background(), "ws-1", "ws-1"); !errors.Is(err, ErrSameWorkspace) {
+		t.Fatalf("expected ErrSameWorkspace, got %v", err)
+	}
+}
+
+func TestCopyConfigToWorkspace_NothingToCopy(t *testing.T) {
+	f := newSvcFixture(t)
+	if _, err := f.svc.CopyConfigToWorkspace(context.Background(), "ws-empty", "ws-dst"); !errors.Is(err, ErrNothingToCopy) {
+		t.Fatalf("expected ErrNothingToCopy, got %v", err)
+	}
+}
+
+// TestCopyConfigToWorkspace_MissingSecret guards the empty-secret boundary: a
+// source config row whose stored secret is empty must fail with ErrNothingToCopy
+// rather than copy an empty secret (which SetConfigForWorkspace treats as
+// "preserve existing", silently leaving the target on its old credential).
+func TestCopyConfigToWorkspace_MissingSecret(t *testing.T) {
+	f := newSvcFixture(t)
+	ctx := context.Background()
+	const src, dst = "ws-src", "ws-dst"
+	// Seed a config row directly and an empty stored secret so revealSecret
+	// returns ("", nil) instead of a not-found error.
+	if err := f.store.UpsertConfigForWorkspace(ctx, src, &LinearConfig{
+		AuthMethod:     AuthMethodAPIKey,
+		DefaultTeamKey: "ENG",
+	}); err != nil {
+		t.Fatalf("seed source config: %v", err)
+	}
+	// Store empty values for both the workspace-scoped and legacy keys so
+	// revealSecret returns ("", nil) rather than a not-found error.
+	if err := f.secrets.Set(ctx, SecretKeyForWorkspace(src), "Linear API key", ""); err != nil {
+		t.Fatalf("seed empty secret: %v", err)
+	}
+	if err := f.secrets.Set(ctx, SecretKey, "Linear API key", ""); err != nil {
+		t.Fatalf("seed empty legacy secret: %v", err)
+	}
+	if _, err := f.svc.CopyConfigToWorkspace(ctx, src, dst); !errors.Is(err, ErrNothingToCopy) {
+		t.Fatalf("expected ErrNothingToCopy for empty secret, got %v", err)
+	}
+}
diff --git a/apps/backend/internal/linear/handlers.go b/apps/backend/internal/linear/handlers.go
index db944b6949..06e96e73a3 100644
--- a/apps/backend/internal/linear/handlers.go
+++ b/apps/backend/internal/linear/handlers.go
@@ -36,6 +36,7 @@ func (c *Controller) RegisterHTTPRoutes(router *gin.Engine) {
 	api.POST("/config", c.httpSetConfig)
 	api.DELETE("/config", c.httpDeleteConfig)
 	api.POST("/config/test", c.httpTestConfig)
+	api.POST("/config/copy", c.httpCopyConfig)
 	api.GET("/teams", c.httpListTeams)
 	api.GET("/states", c.httpListStates)
 	api.GET("/labels", c.httpListLabels)
@@ -210,6 +211,42 @@ func (c *Controller) workspaceID(ctx *gin.Context) string {
 	return strings.TrimSpace(ctx.Query("workspace_id"))
 }
 
+// copyConfigRequest is the payload for the copy-config endpoint. The source
+// workspace comes from the workspace_id query param; the body carries the
+// target.
+type copyConfigRequest struct {
+	TargetWorkspaceID string `json:"targetWorkspaceId"`
+}
+
+func (c *Controller) httpCopyConfig(ctx *gin.Context) {
+	sourceWorkspaceID := c.workspaceID(ctx)
+	if sourceWorkspaceID == "" {
+		ctx.JSON(http.StatusBadRequest, gin.H{"error": "workspace_id query parameter required"})
+		return
+	}
+	var req copyConfigRequest
+	if err := ctx.ShouldBindJSON(&req); err != nil {
+		ctx.JSON(http.StatusBadRequest, gin.H{"error": "invalid payload"})
+		return
+	}
+	targetWorkspaceID := strings.TrimSpace(req.TargetWorkspaceID)
+	if targetWorkspaceID == "" {
+		ctx.JSON(http.StatusBadRequest, gin.H{"error": "targetWorkspaceId required"})
+		return
+	}
+	cfg, err := c.service.CopyConfigToWorkspace(ctx.Request.Context(), sourceWorkspaceID, targetWorkspaceID)
+	if err != nil {
+		status := http.StatusInternalServerError
+		switch {
+		case errors.Is(err, ErrSameWorkspace), errors.Is(err, ErrNothingToCopy), errors.Is(err, ErrInvalidConfig):
+			status = http.StatusBadRequest
+		}
+		ctx.JSON(status, gin.H{"error": err.Error()})
+		return
+	}
+	ctx.JSON(http.StatusOK, cfg)
+}
+
 // parseSearchNumericFilters parses priority + estimate query params onto the
 // filter and returns a 400-worthy error when any are malformed. Invalid input
 // is rejected rather than silently dropped so callers don't accidentally widen
diff --git a/apps/backend/internal/sentry/copy.go b/apps/backend/internal/sentry/copy.go
new file mode 100644
index 0000000000..55b7c50fcc
--- /dev/null
+++ b/apps/backend/internal/sentry/copy.go
@@ -0,0 +1,72 @@
+package sentry
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"time"
+)
+
+// ErrSameWorkspace is returned when a copy targets the same workspace it reads
+// from.
+var ErrSameWorkspace = errors.New("sentry: source and target workspaces are the same")
+
+// ErrNothingToCopy is returned when the source workspace has no Sentry config.
+var ErrNothingToCopy = errors.New("sentry: source workspace has no configuration to copy")
+
+// CopyConfigToWorkspace copies the Sentry provider config and credential (auth
+// token) from sourceWorkspaceID to targetWorkspaceID. Watchers are
+// intentionally out of scope — only the connection settings and secret are
+// duplicated.
+func (s *Service) CopyConfigToWorkspace(ctx context.Context, sourceWorkspaceID, targetWorkspaceID string) (*SentryConfig, error) {
+	sourceWorkspaceID, err := s.normalizeWorkspaceID(sourceWorkspaceID)
+	if err != nil {
+		return nil, err
+	}
+	targetWorkspaceID, err = s.normalizeWorkspaceID(targetWorkspaceID)
+	if err != nil {
+		return nil, err
+	}
+	if sourceWorkspaceID == targetWorkspaceID {
+		return nil, ErrSameWorkspace
+	}
+	cfg, err := s.store.GetConfigForWorkspace(ctx, sourceWorkspaceID)
+	if err != nil {
+		return nil, fmt.Errorf("read source sentry config: %w", err)
+	}
+	if cfg == nil {
+		return nil, ErrNothingToCopy
+	}
+	secret, err := s.revealSecret(ctx, sourceWorkspaceID)
+	if err != nil {
+		return nil, fmt.Errorf("read source sentry secret: %w", err)
+	}
+	// An empty Secret means "keep existing" in SetConfigForWorkspace, so copying
+	// from a workspace without a stored token would leave the target on its old
+	// credential paired with the copied settings. Treat that as nothing to copy.
+	if secret == "" {
+		return nil, ErrNothingToCopy
+	}
+	req := &SetConfigRequest{
+		AuthMethod: cfg.AuthMethod,
+		URL:        cfg.URL,
+		Secret:     secret,
+	}
+	// Mark the target unhealthy before the write so the UI doesn't briefly flash
+	// a stale "connected" state from the target's previous credential while the
+	// async probe kicked off by SetConfigForWorkspace validates the copied one.
+	if err := s.store.UpdateAuthHealthForWorkspace(ctx, targetWorkspaceID, false, "", time.Now().UTC()); err != nil {
+		return nil, fmt.Errorf("reset target sentry health: %w", err)
+	}
+	cfgOut, err := s.SetConfigForWorkspace(ctx, targetWorkspaceID, req)
+	if err != nil {
+		// The write failed, so the target's config is unchanged but we already
+		// flipped its health row. Re-probe asynchronously (best effort) so the row
+		// reflects the target's real state again rather than a spurious
+		// "unhealthy", without delaying the error response by the probe timeout.
+		// Detach from the request context, which may already be cancelled.
+		go s.RecordAuthHealthForWorkspace(context.Background(), targetWorkspaceID)
+		return nil, err
+	}
+	return cfgOut, nil
+}
diff --git a/apps/backend/internal/sentry/copy_test.go b/apps/backend/internal/sentry/copy_test.go
new file mode 100644
index 0000000000..14109541c7
--- /dev/null
+++ b/apps/backend/internal/sentry/copy_test.go
@@ -0,0 +1,64 @@
+package sentry
+
+import (
+	"context"
+	"errors"
+	"testing"
+	"time"
+)
+
+// drainProbe waits for the async auth-health probe fired by a config write.
+func drainProbe(t *testing.T, f *svcFixture) {
+	t.Helper()
+	select {
+	case <-f.probed:
+	case <-time.After(2 * time.Second):
+		t.Fatalf("async probe hook did not fire within 2s")
+	}
+}
+
+func TestCopyConfigToWorkspace_CopiesConfigAndSecret(t *testing.T) {
+	f := newSvcFixture(t)
+	ctx := context.Background()
+	const src, dst = "ws-src", "ws-dst"
+
+	if _, err := f.svc.SetConfigForWorkspace(ctx, src, &SetConfigRequest{
+		AuthMethod: AuthMethodAuthToken,
+		URL:        "https://sentry.example.com",
+		Secret:     "sen-src",
+	}); err != nil {
+		t.Fatalf("seed source: %v", err)
+	}
+	drainProbe(t, f)
+
+	got, err := f.svc.CopyConfigToWorkspace(ctx, src, dst)
+	if err != nil {
+		t.Fatalf("copy: %v", err)
+	}
+	drainProbe(t, f)
+
+	if got.URL != "https://sentry.example.com" || got.AuthMethod != AuthMethodAuthToken {
+		t.Errorf("copied config mismatch: %+v", got)
+	}
+	v, err := f.secrets.Reveal(ctx, SecretKeyForWorkspace(dst))
+	if err != nil {
+		t.Fatalf("reveal copied secret: %v", err)
+	}
+	if v != "sen-src" {
+		t.Errorf("secret not copied: %q", v)
+	}
+}
+
+func TestCopyConfigToWorkspace_SameWorkspace(t *testing.T) {
+	f := newSvcFixture(t)
+	if _, err := f.svc.CopyConfigToWorkspace(context.Background(), "ws-1", "ws-1"); !errors.Is(err, ErrSameWorkspace) {
+		t.Fatalf("expected ErrSameWorkspace, got %v", err)
+	}
+}
+
+func TestCopyConfigToWorkspace_NothingToCopy(t *testing.T) {
+	f := newSvcFixture(t)
+	if _, err := f.svc.CopyConfigToWorkspace(context.Background(), "ws-empty", "ws-dst"); !errors.Is(err, ErrNothingToCopy) {
+		t.Fatalf("expected ErrNothingToCopy, got %v", err)
+	}
+}
diff --git a/apps/backend/internal/sentry/handlers.go b/apps/backend/internal/sentry/handlers.go
index 58bf261f8a..1728c54dde 100644
--- a/apps/backend/internal/sentry/handlers.go
+++ b/apps/backend/internal/sentry/handlers.go
@@ -33,6 +33,7 @@ func (c *Controller) RegisterHTTPRoutes(router *gin.Engine) {
 	api.PUT("/config", c.httpSetConfig)
 	api.DELETE("/config", c.httpDeleteConfig)
 	api.POST("/config/test", c.httpTestConfig)
+	api.POST("/config/copy", c.httpCopyConfig)
 	api.GET("/organizations", c.httpListOrganizations)
 	api.GET("/projects", c.httpListProjects)
 	api.GET("/issues", c.httpSearchIssues)
@@ -160,6 +161,42 @@ func (c *Controller) workspaceID(ctx *gin.Context) string {
 	return strings.TrimSpace(ctx.Query("workspace_id"))
 }
 
+// copyConfigRequest is the payload for the copy-config endpoint. The source
+// workspace comes from the workspace_id query param; the body carries the
+// target.
+type copyConfigRequest struct {
+	TargetWorkspaceID string `json:"targetWorkspaceId"`
+}
+
+func (c *Controller) httpCopyConfig(ctx *gin.Context) {
+	sourceWorkspaceID := c.workspaceID(ctx)
+	if sourceWorkspaceID == "" {
+		ctx.JSON(http.StatusBadRequest, gin.H{"error": "workspace_id query parameter required"})
+		return
+	}
+	var req copyConfigRequest
+	if err := ctx.ShouldBindJSON(&req); err != nil {
+		ctx.JSON(http.StatusBadRequest, gin.H{"error": "invalid payload"})
+		return
+	}
+	targetWorkspaceID := strings.TrimSpace(req.TargetWorkspaceID)
+	if targetWorkspaceID == "" {
+		ctx.JSON(http.StatusBadRequest, gin.H{"error": "targetWorkspaceId required"})
+		return
+	}
+	cfg, err := c.service.CopyConfigToWorkspace(ctx.Request.Context(), sourceWorkspaceID, targetWorkspaceID)
+	if err != nil {
+		status := http.StatusInternalServerError
+		switch {
+		case errors.Is(err, ErrSameWorkspace), errors.Is(err, ErrNothingToCopy), errors.Is(err, ErrInvalidConfig):
+			status = http.StatusBadRequest
+		}
+		ctx.JSON(status, gin.H{"error": err.Error()})
+		return
+	}
+	ctx.JSON(http.StatusOK, cfg)
+}
+
 // errCodeSentryNotConfigured is the wire-level code surfaced to the UI when
 // Sentry has no saved credentials.
 const errCodeSentryNotConfigured = "SENTRY_NOT_CONFIGURED"
diff --git a/apps/backend/internal/slack/copy.go b/apps/backend/internal/slack/copy.go
new file mode 100644
index 0000000000..5039535a6a
--- /dev/null
+++ b/apps/backend/internal/slack/copy.go
@@ -0,0 +1,79 @@
+package slack
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"time"
+)
+
+// ErrSameWorkspace is returned when a copy targets the same workspace it reads
+// from — a no-op the caller should surface as a client error rather than
+// silently succeeding.
+var ErrSameWorkspace = errors.New("slack: source and target workspaces are the same")
+
+// ErrNothingToCopy is returned when the source workspace has no Slack config to
+// copy.
+var ErrNothingToCopy = errors.New("slack: source workspace has no configuration to copy")
+
+// CopyConfigToWorkspace copies the Slack provider config and credentials
+// (token + cookie) from sourceWorkspaceID to targetWorkspaceID. Watchers and
+// automations are intentionally out of scope — only the connection settings and
+// secrets are duplicated. The target's health probe re-runs so runtime fields
+// (team/user id) repopulate from the copied credentials.
+func (s *Service) CopyConfigToWorkspace(ctx context.Context, sourceWorkspaceID, targetWorkspaceID string) (*SlackConfig, error) {
+	sourceWorkspaceID, err := s.normalizeWorkspaceID(sourceWorkspaceID)
+	if err != nil {
+		return nil, err
+	}
+	targetWorkspaceID, err = s.normalizeWorkspaceID(targetWorkspaceID)
+	if err != nil {
+		return nil, err
+	}
+	if sourceWorkspaceID == targetWorkspaceID {
+		return nil, ErrSameWorkspace
+	}
+	cfg, err := s.store.GetConfigForWorkspace(ctx, sourceWorkspaceID)
+	if err != nil {
+		return nil, fmt.Errorf("read source slack config: %w", err)
+	}
+	if cfg == nil {
+		return nil, ErrNothingToCopy
+	}
+	token, cookie, err := s.revealSecrets(ctx, sourceWorkspaceID)
+	if err != nil {
+		return nil, err
+	}
+	// Empty Token/Cookie mean "preserve existing" in SetConfigForWorkspace, so a
+	// source without stored secrets would silently leave the target on its old
+	// credentials. Treat a missing source secret as nothing to copy instead.
+	if token == "" || cookie == "" {
+		return nil, ErrNothingToCopy
+	}
+	req := &SetConfigRequest{
+		AuthMethod:          cfg.AuthMethod,
+		CommandPrefix:       cfg.CommandPrefix,
+		UtilityAgentID:      cfg.UtilityAgentID,
+		PollIntervalSeconds: cfg.PollIntervalSeconds,
+		Token:               token,
+		Cookie:              cookie,
+	}
+	// Mark the target unhealthy before the write so the UI doesn't briefly flash
+	// a stale "connected" state (old team/user id) from the target's previous
+	// connection while the async probe validates the copied credentials. The
+	// probe repopulates team/user id from the new credentials.
+	if err := s.store.UpdateAuthHealthForWorkspace(ctx, targetWorkspaceID, false, "", "", "", time.Now().UTC()); err != nil {
+		return nil, fmt.Errorf("reset target slack health: %w", err)
+	}
+	cfgOut, err := s.SetConfigForWorkspace(ctx, targetWorkspaceID, req)
+	if err != nil {
+		// The write failed, so the target's config is unchanged but we already
+		// flipped its health row. Re-probe asynchronously (best effort) so the row
+		// reflects the target's real state again rather than a spurious
+		// "unhealthy", without delaying the error response by the probe timeout.
+		// Detach from the request context, which may already be cancelled.
+		go s.RecordAuthHealthForWorkspace(context.Background(), targetWorkspaceID)
+		return nil, err
+	}
+	return cfgOut, nil
+}
diff --git a/apps/backend/internal/slack/copy_test.go b/apps/backend/internal/slack/copy_test.go
new file mode 100644
index 0000000000..d4673eb0a9
--- /dev/null
+++ b/apps/backend/internal/slack/copy_test.go
@@ -0,0 +1,131 @@
+package slack
+
+import (
+	"context"
+	"errors"
+	"sync"
+	"testing"
+
+	"github.com/kandev/kandev/internal/common/logger"
+)
+
+// fakeSecrets is an in-memory SecretStore for copy tests.
+type fakeSecrets struct {
+	mu     sync.Mutex
+	values map[string]string
+}
+
+func newFakeSecrets() *fakeSecrets { return &fakeSecrets{values: map[string]string{}} }
+
+func (f *fakeSecrets) Reveal(_ context.Context, id string) (string, error) {
+	f.mu.Lock()
+	defer f.mu.Unlock()
+	return f.values[id], nil
+}
+
+func (f *fakeSecrets) Set(_ context.Context, id, _, value string) error {
+	f.mu.Lock()
+	defer f.mu.Unlock()
+	f.values[id] = value
+	return nil
+}
+
+func (f *fakeSecrets) Delete(_ context.Context, id string) error {
+	f.mu.Lock()
+	defer f.mu.Unlock()
+	delete(f.values, id)
+	return nil
+}
+
+func (f *fakeSecrets) Exists(_ context.Context, id string) (bool, error) {
+	f.mu.Lock()
+	defer f.mu.Unlock()
+	_, ok := f.values[id]
+	return ok, nil
+}
+
+func (f *fakeSecrets) get(id string) string {
+	f.mu.Lock()
+	defer f.mu.Unlock()
+	return f.values[id]
+}
+
+func newCopyTestService(t *testing.T, secrets SecretStore) *Service {
+	t.Helper()
+	store := newTestStore(t)
+	// A fake client keeps the async health probe from doing real IO.
+	factory := func(_ *SlackConfig, _, _ string) Client { return &fakeClient{} }
+	return NewService(store, secrets, nil, factory, logger.Default())
+}
+
+func TestCopyConfigToWorkspace_CopiesConfigAndSecrets(t *testing.T) {
+	ctx := context.Background()
+	secrets := newFakeSecrets()
+	svc := newCopyTestService(t, secrets)
+	// Block on the async probe so the test doesn't race the background write.
+	done := make(chan struct{}, 4)
+	svc.SetProbeHook(func() { done <- struct{}{} })
+
+	const src, dst = "ws-src", "ws-dst"
+	if _, err := svc.SetConfigForWorkspace(ctx, src, &SetConfigRequest{
+		AuthMethod:          AuthMethodCookie,
+		CommandPrefix:       "!go",
+		UtilityAgentID:      "ua-1",
+		PollIntervalSeconds: 45,
+		Token:               "xoxc-token",
+		Cookie:              "d-cookie",
+	}); err != nil {
+		t.Fatalf("seed source: %v", err)
+	}
+	<-done
+
+	got, err := svc.CopyConfigToWorkspace(ctx, src, dst)
+	if err != nil {
+		t.Fatalf("copy: %v", err)
+	}
+	<-done
+
+	if got.UtilityAgentID != "ua-1" || got.CommandPrefix != "!go" || got.PollIntervalSeconds != 45 {
+		t.Errorf("copied config mismatch: %+v", got)
+	}
+	if v := secrets.get(SecretKeyForToken(dst)); v != "xoxc-token" {
+		t.Errorf("token not copied: %q", v)
+	}
+	if v := secrets.get(SecretKeyForCookie(dst)); v != "d-cookie" {
+		t.Errorf("cookie not copied: %q", v)
+	}
+}
+
+func TestCopyConfigToWorkspace_SameWorkspace(t *testing.T) {
+	svc := newCopyTestService(t, newFakeSecrets())
+	if _, err := svc.CopyConfigToWorkspace(context.Background(), "ws-1", "ws-1"); !errors.Is(err, ErrSameWorkspace) {
+		t.Fatalf("expected ErrSameWorkspace, got %v", err)
+	}
+}
+
+func TestCopyConfigToWorkspace_NothingToCopy(t *testing.T) {
+	svc := newCopyTestService(t, newFakeSecrets())
+	if _, err := svc.CopyConfigToWorkspace(context.Background(), "ws-empty", "ws-dst"); !errors.Is(err, ErrNothingToCopy) {
+		t.Fatalf("expected ErrNothingToCopy, got %v", err)
+	}
+}
+
+// TestCopyConfigToWorkspace_MissingSecret guards against silently leaving the
+// target on its previous credentials: a source config row without stored
+// token/cookie must fail rather than copy an empty secret (which
+// SetConfigForWorkspace would treat as "preserve existing").
+func TestCopyConfigToWorkspace_MissingSecret(t *testing.T) {
+	ctx := context.Background()
+	svc := newCopyTestService(t, newFakeSecrets())
+	// Seed a config row directly, without storing any token/cookie secret.
+	if err := svc.store.UpsertConfigForWorkspace(ctx, "ws-src", &SlackConfig{
+		AuthMethod:          AuthMethodCookie,
+		UtilityAgentID:      "ua-1",
+		PollIntervalSeconds: 30,
+	}); err != nil {
+		t.Fatalf("seed source config: %v", err)
+	}
+	if _, err := svc.CopyConfigToWorkspace(ctx, "ws-src", "ws-dst"); !errors.Is(err, ErrNothingToCopy) {
+		t.Fatalf("expected ErrNothingToCopy for missing secret, got %v", err)
+	}
+}
diff --git a/apps/backend/internal/slack/handlers.go b/apps/backend/internal/slack/handlers.go
index d18b8014eb..4c01cd71e1 100644
--- a/apps/backend/internal/slack/handlers.go
+++ b/apps/backend/internal/slack/handlers.go
@@ -33,6 +33,43 @@ func (c *Controller) RegisterHTTPRoutes(router *gin.Engine) {
 	api.POST("/config", c.httpSetConfig)
 	api.DELETE("/config", c.httpDeleteConfig)
 	api.POST("/config/test", c.httpTestConfig)
+	api.POST("/config/copy", c.httpCopyConfig)
+}
+
+// copyConfigRequest is the payload for the copy-config endpoint. The source
+// workspace is taken from the workspace_id query param (like every other
+// handler here); the body carries the target.
+type copyConfigRequest struct {
+	TargetWorkspaceID string `json:"targetWorkspaceId"`
+}
+
+func (c *Controller) httpCopyConfig(ctx *gin.Context) {
+	sourceWorkspaceID := c.workspaceID(ctx)
+	if sourceWorkspaceID == "" {
+		ctx.JSON(http.StatusBadRequest, gin.H{"error": "workspace_id query parameter required"})
+		return
+	}
+	var req copyConfigRequest
+	if err := ctx.ShouldBindJSON(&req); err != nil {
+		ctx.JSON(http.StatusBadRequest, gin.H{"error": "invalid payload"})
+		return
+	}
+	targetWorkspaceID := strings.TrimSpace(req.TargetWorkspaceID)
+	if targetWorkspaceID == "" {
+		ctx.JSON(http.StatusBadRequest, gin.H{"error": "targetWorkspaceId required"})
+		return
+	}
+	cfg, err := c.service.CopyConfigToWorkspace(ctx.Request.Context(), sourceWorkspaceID, targetWorkspaceID)
+	if err != nil {
+		status := http.StatusInternalServerError
+		switch {
+		case errors.Is(err, ErrSameWorkspace), errors.Is(err, ErrNothingToCopy), errors.Is(err, ErrInvalidConfig):
+			status = http.StatusBadRequest
+		}
+		ctx.JSON(status, gin.H{"error": err.Error()})
+		return
+	}
+	ctx.JSON(http.StatusOK, cfg)
 }
 
 // --- HTTP handlers ---
diff --git a/apps/web/components/github/github-settings.tsx b/apps/web/components/github/github-settings.tsx
index 161978734a..466545703a 100644
--- a/apps/web/components/github/github-settings.tsx
+++ b/apps/web/components/github/github-settings.tsx
@@ -312,7 +312,7 @@ export function GitHubIntegrationPage() {
     <TooltipProvider>
       <div className="space-y-8">
         <GitHubConnectionSection />
-        <WorkspaceScopedSection showSelector={false}>
+        <WorkspaceScopedSection>
           {(ws) => <PerWorkspaceSection key={ws} workspaceId={ws} />}
         </WorkspaceScopedSection>
       </div>
diff --git a/apps/web/components/integrations/integration-copy-config-menu.tsx b/apps/web/components/integrations/integration-copy-config-menu.tsx
new file mode 100644
index 0000000000..5ca2dc72e6
--- /dev/null
+++ b/apps/web/components/integrations/integration-copy-config-menu.tsx
@@ -0,0 +1,205 @@
+"use client";
+
+import { useCallback, useEffect, useMemo, useState } from "react";
+import { IconCopy } from "@tabler/icons-react";
+import { Button } from "@kandev/ui/button";
+import {
+  Dialog,
+  DialogContent,
+  DialogDescription,
+  DialogFooter,
+  DialogHeader,
+  DialogTitle,
+} from "@kandev/ui/dialog";
+import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from "@kandev/ui/select";
+import { Tooltip, TooltipContent, TooltipTrigger } from "@kandev/ui/tooltip";
+import { useToast } from "@/components/toast-provider";
+import {
+  copyIntegrationConfig,
+  integrationLabel,
+  type IntegrationSlug,
+} from "./integration-copy-config";
+
+type Workspace = { id: string; name: string };
+
+type IntegrationCopyConfigMenuProps = {
+  slug: IntegrationSlug;
+  sourceWorkspaceId: string;
+  workspaces: Workspace[];
+};
+
+function workspaceName(workspaces: Workspace[], id: string | null): string {
+  return workspaces.find((w) => w.id === id)?.name ?? "";
+}
+
+function CopyConfigDialogBody({
+  label,
+  slug,
+  sourceName,
+  targets,
+  targetId,
+  setTargetId,
+  copying,
+  onCopy,
+  onCancel,
+}: {
+  label: string;
+  slug: IntegrationSlug;
+  sourceName: string;
+  targets: Workspace[];
+  targetId: string | null;
+  setTargetId: (id: string) => void;
+  copying: boolean;
+  onCopy: () => void;
+  onCancel: () => void;
+}) {
+  return (
+    <DialogContent className="sm:max-w-md">
+      <DialogHeader>
+        <DialogTitle>Copy {label} configuration</DialogTitle>
+        <DialogDescription>
+          Copy the {label} settings
+          {slug === "github" ? "" : " and credentials"} from{" "}
+          <span className="font-medium text-foreground">{sourceName}</span> into another workspace.
+          This overwrites the target workspace&apos;s current {label} configuration. Watchers and
+          automations are not copied.
+        </DialogDescription>
+      </DialogHeader>
+      <div className="space-y-2">
+        <label htmlFor="copy-config-target" className="text-xs font-medium text-muted-foreground">
+          Target workspace
+        </label>
+        <Select value={targetId ?? undefined} onValueChange={setTargetId}>
+          <SelectTrigger
+            id="copy-config-target"
+            className="w-full"
+            data-testid="integration-copy-config-target"
+          >
+            <SelectValue placeholder="Select a workspace…" />
+          </SelectTrigger>
+          <SelectContent>
+            {targets.map((workspace) => (
+              <SelectItem key={workspace.id} value={workspace.id}>
+                {workspace.name}
+              </SelectItem>
+            ))}
+          </SelectContent>
+        </Select>
+      </div>
+      <DialogFooter>
+        <Button type="button" variant="outline" className="cursor-pointer" onClick={onCancel}>
+          Cancel
+        </Button>
+        <Button
+          type="button"
+          className="cursor-pointer"
+          disabled={!targetId || copying}
+          onClick={onCopy}
+          data-dialog-default-action
+          data-testid="integration-copy-config-confirm"
+        >
+          <IconCopy className="h-4 w-4" />
+          Copy config
+        </Button>
+      </DialogFooter>
+    </DialogContent>
+  );
+}
+
+// IntegrationCopyConfigMenu renders an icon-only button next to the workspace
+// switcher. Clicking it opens a dialog that explains what copying does and lets
+// the user pick a target workspace to copy the current integration's config
+// (and credentials, except GitHub) into.
+export function IntegrationCopyConfigMenu({
+  slug,
+  sourceWorkspaceId,
+  workspaces,
+}: IntegrationCopyConfigMenuProps) {
+  const { toast, updateToast } = useToast();
+  const [open, setOpen] = useState(false);
+  const [copying, setCopying] = useState(false);
+  const [targetId, setTargetId] = useState<string | null>(null);
+  const label = integrationLabel(slug);
+
+  const targets = useMemo(
+    () => workspaces.filter((w) => w.id !== sourceWorkspaceId),
+    [workspaces, sourceWorkspaceId],
+  );
+  const sourceName = workspaceName(workspaces, sourceWorkspaceId);
+
+  // Clear a selected target that is no longer valid — e.g. the user switched the
+  // editing workspace (making the old source a valid target, or the old target
+  // the new source) while a target was already picked.
+  useEffect(() => {
+    if (targetId && !targets.some((w) => w.id === targetId)) {
+      setTargetId(null);
+    }
+  }, [targetId, targets]);
+
+  const onOpenChange = useCallback((next: boolean) => {
+    setOpen(next);
+    // Reset the selection when the dialog closes (ESC, backdrop, or Cancel) so
+    // reopening doesn't pre-select a previously chosen target.
+    if (!next) setTargetId(null);
+  }, []);
+
+  const onCopy = useCallback(async () => {
+    if (!targetId) return;
+    const targetName = workspaceName(workspaces, targetId);
+    setCopying(true);
+    const pendingId = toast({
+      variant: "loading",
+      description: `Copying ${label} config to ${targetName}…`,
+    });
+    try {
+      await copyIntegrationConfig(slug, sourceWorkspaceId, targetId);
+      updateToast(pendingId, {
+        variant: "success",
+        description: `Copied ${label} config to ${targetName}.`,
+      });
+      setOpen(false);
+      setTargetId(null);
+    } catch (err) {
+      updateToast(pendingId, {
+        variant: "error",
+        description: `Failed to copy config: ${String(err)}`,
+      });
+    } finally {
+      setCopying(false);
+    }
+  }, [slug, sourceWorkspaceId, targetId, workspaces, label, toast, updateToast]);
+
+  if (targets.length === 0) return null;
+
+  return (
+    <Dialog open={open} onOpenChange={onOpenChange}>
+      <Tooltip>
+        <TooltipTrigger asChild>
+          <Button
+            type="button"
+            variant="outline"
+            size="icon-lg"
+            className="cursor-pointer"
+            aria-label="Copy config to another workspace"
+            data-testid="integration-copy-config-trigger"
+            onClick={() => setOpen(true)}
+          >
+            <IconCopy className="h-4 w-4" />
+          </Button>
+        </TooltipTrigger>
+        <TooltipContent>Copy config to another workspace</TooltipContent>
+      </Tooltip>
+      <CopyConfigDialogBody
+        label={label}
+        slug={slug}
+        sourceName={sourceName}
+        targets={targets}
+        targetId={targetId}
+        setTargetId={setTargetId}
+        copying={copying}
+        onCopy={() => void onCopy()}
+        onCancel={() => onOpenChange(false)}
+      />
+    </Dialog>
+  );
+}
diff --git a/apps/web/components/integrations/integration-copy-config.test.ts b/apps/web/components/integrations/integration-copy-config.test.ts
new file mode 100644
index 0000000000..2632ed706c
--- /dev/null
+++ b/apps/web/components/integrations/integration-copy-config.test.ts
@@ -0,0 +1,32 @@
+import { describe, it, expect } from "vitest";
+import { integrationFromPathname, integrationLabel } from "./integration-copy-config";
+
+describe("integrationFromPathname", () => {
+  it("resolves each supported integration slug", () => {
+    expect(integrationFromPathname("/settings/integrations/slack")).toBe("slack");
+    expect(integrationFromPathname("/settings/integrations/jira")).toBe("jira");
+    expect(integrationFromPathname("/settings/integrations/linear")).toBe("linear");
+    expect(integrationFromPathname("/settings/integrations/sentry")).toBe("sentry");
+    expect(integrationFromPathname("/settings/integrations/github")).toBe("github");
+  });
+
+  it("ignores trailing path segments and query-like suffixes", () => {
+    expect(integrationFromPathname("/settings/integrations/slack/watchers")).toBe("slack");
+  });
+
+  it("returns null for non-integration or unknown pages", () => {
+    expect(integrationFromPathname("/settings/integrations")).toBeNull();
+    expect(integrationFromPathname("/settings/agents")).toBeNull();
+    expect(integrationFromPathname("/settings/integrations/unknown")).toBeNull();
+  });
+});
+
+describe("integrationLabel", () => {
+  it("uses the app's canonical spelling", () => {
+    expect(integrationLabel("github")).toBe("GitHub");
+    expect(integrationLabel("jira")).toBe("Jira");
+    expect(integrationLabel("slack")).toBe("Slack");
+    expect(integrationLabel("linear")).toBe("Linear");
+    expect(integrationLabel("sentry")).toBe("Sentry");
+  });
+});
diff --git a/apps/web/components/integrations/integration-copy-config.ts b/apps/web/components/integrations/integration-copy-config.ts
new file mode 100644
index 0000000000..0dbe44f486
--- /dev/null
+++ b/apps/web/components/integrations/integration-copy-config.ts
@@ -0,0 +1,63 @@
+import { copySlackConfig } from "@/lib/api/domains/slack-api";
+import { copyJiraConfig } from "@/lib/api/domains/jira-api";
+import { copyLinearConfig } from "@/lib/api/domains/linear-api";
+import { copySentryConfig } from "@/lib/api/domains/sentry-api";
+import { copyGitHubWorkspaceSettings } from "@/lib/api/domains/github-api";
+
+// IntegrationSlug is the set of integration settings pages that support copying
+// their per-workspace config to another workspace.
+export type IntegrationSlug = "slack" | "jira" | "linear" | "sentry" | "github";
+
+// integrationLabels maps each slug to how the rest of the app spells it.
+const integrationLabels: Record<IntegrationSlug, string> = {
+  slack: "Slack",
+  jira: "Jira",
+  linear: "Linear",
+  sentry: "Sentry",
+  github: "GitHub",
+};
+
+// integrationFromPathname returns the integration slug for a settings pathname
+// like /settings/integrations/slack, or null when the current page is not a
+// copyable integration page.
+export function integrationFromPathname(pathname: string): IntegrationSlug | null {
+  const match = pathname.match(/^\/settings\/integrations\/([^/]+)/);
+  const slug = match?.[1];
+  if (slug && Object.prototype.hasOwnProperty.call(integrationLabels, slug)) {
+    return slug as IntegrationSlug;
+  }
+  return null;
+}
+
+// integrationLabel returns the display name for a slug.
+export function integrationLabel(slug: IntegrationSlug): string {
+  return integrationLabels[slug];
+}
+
+// copyIntegrationConfig copies the config for the given integration from
+// sourceWorkspaceId to targetWorkspaceId. GitHub copies settings only (its auth
+// is install-wide); every other integration copies config + credentials.
+export async function copyIntegrationConfig(
+  slug: IntegrationSlug,
+  sourceWorkspaceId: string,
+  targetWorkspaceId: string,
+): Promise<void> {
+  const options = { workspaceId: sourceWorkspaceId };
+  switch (slug) {
+    case "slack":
+      await copySlackConfig(targetWorkspaceId, options);
+      return;
+    case "jira":
+      await copyJiraConfig(targetWorkspaceId, options);
+      return;
+    case "linear":
+      await copyLinearConfig(targetWorkspaceId, options);
+      return;
+    case "sentry":
+      await copySentryConfig(targetWorkspaceId, options);
+      return;
+    case "github":
+      await copyGitHubWorkspaceSettings(targetWorkspaceId, options);
+      return;
+  }
+}
diff --git a/apps/web/components/integrations/workspace-scoped-section.tsx b/apps/web/components/integrations/workspace-scoped-section.tsx
index bad2c13bdc..0d8223b06f 100644
--- a/apps/web/components/integrations/workspace-scoped-section.tsx
+++ b/apps/web/components/integrations/workspace-scoped-section.tsx
@@ -1,38 +1,23 @@
 "use client";
 
-import { useState, type ReactNode } from "react";
+import { type ReactNode } from "react";
 import { Card, CardContent } from "@kandev/ui/card";
 import { useAppStore } from "@/components/state-provider";
-import { WorkspaceSwitcher } from "@/components/task/workspace-switcher";
 
 type WorkspaceScopedSectionProps = {
-  label?: string;
   emptyMessage?: string;
-  showSelector?: boolean;
   children: (workspaceId: string) => ReactNode;
 };
 
-// WorkspaceScopedSection wraps watcher / per-workspace settings under a
-// workspace selector so the install-wide integration settings page can still
-// surface things that genuinely scope to one workspace at a time. The selector
-// defaults to the active workspace from the global store; an explicit user
-// override survives until the workspace list no longer contains it.
-export function WorkspaceScopedSection({
-  label = "Workspace",
-  emptyMessage,
-  showSelector = true,
-  children,
-}: WorkspaceScopedSectionProps) {
+// WorkspaceScopedSection renders per-workspace integration settings for the
+// workspace currently selected in the top-right settings switcher. The switcher
+// (settings-layout-client) is the single source of truth for which workspace is
+// being edited, so this component just reads the active workspace from the
+// store — it no longer renders its own selector.
+export function WorkspaceScopedSection({ emptyMessage, children }: WorkspaceScopedSectionProps) {
   const workspaces = useAppStore((s) => s.workspaces.items);
   const activeId = useAppStore((s) => s.workspaces.activeId);
-  const [override, setOverride] = useState<string | null>(null);
-
-  // Derive the effective selection at render time: honour an in-bounds user
-  // override, otherwise fall back to the active workspace (or the first one).
-  // This avoids setState-in-effect when the workspace list hydrates after
-  // first render.
-  const overrideValid = override && workspaces.some((w) => w.id === override);
-  const selected = overrideValid ? override : (activeId ?? workspaces[0]?.id ?? null);
+  const selected = activeId ?? workspaces[0]?.id ?? null;
 
   if (workspaces.length === 0) {
     return (
@@ -44,19 +29,5 @@ export function WorkspaceScopedSection({
     );
   }
 
-  return (
-    <div className="space-y-3">
-      {showSelector && (
-        <div className="flex items-center gap-3 text-sm" data-testid="workspace-scoped-selector">
-          <span className="text-muted-foreground">{label}</span>
-          <WorkspaceSwitcher
-            workspaces={workspaces}
-            activeWorkspaceId={selected}
-            onSelect={setOverride}
-          />
-        </div>
-      )}
-      {selected ? children(selected) : null}
-    </div>
-  );
+  return <div className="space-y-3">{selected ? children(selected) : null}</div>;
 }
diff --git a/apps/web/components/settings/settings-layout-client.tsx b/apps/web/components/settings/settings-layout-client.tsx
index 5988b5aab6..8e2549cfe5 100644
--- a/apps/web/components/settings/settings-layout-client.tsx
+++ b/apps/web/components/settings/settings-layout-client.tsx
@@ -1,12 +1,14 @@
 "use client";
 
-import { useCallback, useMemo } from "react";
-import { usePathname } from "@/lib/routing/client-router";
+import { useCallback, useEffect, useMemo } from "react";
+import { usePathname, useRouter, useSearchParams } from "@/lib/routing/client-router";
 import { TooltipProvider } from "@kandev/ui/tooltip";
 import { PageTopbar } from "@/components/page-topbar";
 import { useAppStore } from "@/components/state-provider";
 import { WorkspaceSwitcher } from "@/components/task/workspace-switcher";
 import { createQueuedUserSettingsSync } from "@/lib/user-settings-sync";
+import { IntegrationCopyConfigMenu } from "@/components/integrations/integration-copy-config-menu";
+import { integrationFromPathname } from "@/components/integrations/integration-copy-config";
 
 const WORKSPACE_SYNC_FAILED_KEY = "kandev:settings:integration-workspace:sync-failed:v1";
 
@@ -110,11 +112,45 @@ export function SettingsLayoutClient({ children }: { children: React.ReactNode }
   );
 }
 
+// useWorkspaceQueryParamSync keeps the top-right switcher and the `?workspace`
+// query param in agreement. On load (or when a shared deep link points at a
+// valid workspace), it adopts the query param as the active workspace without
+// persisting it as the user's global default. setWorkspaceParam writes the
+// param back when the user picks a workspace.
+function useWorkspaceQueryParamSync(
+  workspaces: Array<{ id: string }>,
+  activeId: string | null,
+  setActiveWorkspace: (id: string) => void,
+) {
+  const router = useRouter();
+  const searchParams = useSearchParams();
+  const paramWorkspace = searchParams.get("workspace");
+
+  useEffect(() => {
+    if (!paramWorkspace || paramWorkspace === activeId) return;
+    if (!workspaces.some((w) => w.id === paramWorkspace)) return;
+    setActiveWorkspace(paramWorkspace);
+  }, [paramWorkspace, activeId, workspaces, setActiveWorkspace]);
+
+  const setWorkspaceParam = useCallback(
+    (workspaceId: string) => {
+      const next = new URLSearchParams(window.location.search);
+      next.set("workspace", workspaceId);
+      router.replace(`${window.location.pathname}?${next.toString()}`, { scroll: false });
+    },
+    [router],
+  );
+
+  return setWorkspaceParam;
+}
+
 function IntegrationWorkspaceSwitcher() {
+  const pathname = usePathname();
   const workspaces = useAppStore((s) => s.workspaces.items);
   const activeId = useAppStore((s) => s.workspaces.activeId);
   const setActiveWorkspace = useAppStore((s) => s.setActiveWorkspace);
   const selected = activeId ?? workspaces[0]?.id ?? null;
+  const integration = integrationFromPathname(pathname);
   const persistWorkspace = useMemo(
     () =>
       createQueuedUserSettingsSync<string>(WORKSPACE_SYNC_FAILED_KEY, (workspaceId) => ({
@@ -122,20 +158,32 @@ function IntegrationWorkspaceSwitcher() {
       })),
     [],
   );
+  const setWorkspaceParam = useWorkspaceQueryParamSync(workspaces, activeId, setActiveWorkspace);
 
   const onSelect = useCallback(
     (workspaceId: string) => {
       setActiveWorkspace(workspaceId);
+      setWorkspaceParam(workspaceId);
       void persistWorkspace(workspaceId);
     },
-    [persistWorkspace, setActiveWorkspace],
+    [persistWorkspace, setActiveWorkspace, setWorkspaceParam],
   );
 
   if (workspaces.length === 0) return null;
 
   return (
-    <div data-testid="integration-workspace-switcher">
+    <div className="flex min-w-0 items-center gap-2" data-testid="integration-workspace-switcher">
+      <span className="hidden text-xs whitespace-nowrap text-muted-foreground sm:inline">
+        Editing workspace
+      </span>
       <WorkspaceSwitcher workspaces={workspaces} activeWorkspaceId={selected} onSelect={onSelect} />
+      {integration && selected ? (
+        <IntegrationCopyConfigMenu
+          slug={integration}
+          sourceWorkspaceId={selected}
+          workspaces={workspaces}
+        />
+      ) : null}
     </div>
   );
 }
diff --git a/apps/web/components/system-metrics/topbar-metrics.tsx b/apps/web/components/system-metrics/topbar-metrics.tsx
index 028ab00d9d..bb91bbe62e 100644
--- a/apps/web/components/system-metrics/topbar-metrics.tsx
+++ b/apps/web/components/system-metrics/topbar-metrics.tsx
@@ -32,7 +32,7 @@ export function TopbarMetrics({ activeSessionId }: TopbarMetricsProps) {
   const sources = selectSources(snapshot?.sources ?? [], activeSessionId);
   if (sources.length === 0) {
     return (
-      <div className="flex h-8 items-center gap-1 rounded px-2 text-xs text-muted-foreground md:h-7 md:border md:border-border">
+      <div className="flex h-8 items-center gap-1 rounded px-2 text-xs text-muted-foreground md:border md:border-border">
         <IconActivity className="h-3.5 w-3.5" />
         <span className="hidden sm:inline">Metrics</span>
       </div>
@@ -83,7 +83,7 @@ function SourceMetrics({
   const metrics = source.metrics.slice(0, 4);
 
   return (
-    <div className="flex h-7 max-w-[220px] items-center gap-1 overflow-hidden rounded border border-border px-1.5 text-xs">
+    <div className="flex h-8 max-w-[220px] items-center gap-1 overflow-hidden rounded border border-border px-1.5 text-xs">
       {showSource ? <SourceBadge source={source} updatedAt={updatedAt} /> : null}
       {metrics.length > 0 ? (
         metrics.map((metric) => (
diff --git a/apps/web/components/task/chat/message-list-shared.test.tsx b/apps/web/components/task/chat/message-list-shared.test.tsx
index 78ca1670d3..ef9ba671b8 100644
--- a/apps/web/components/task/chat/message-list-shared.test.tsx
+++ b/apps/web/components/task/chat/message-list-shared.test.tsx
@@ -197,6 +197,21 @@ describe("getConversationLoadingState", () => {
       }),
     ).toEqual({ isInitialLoading: true, showLoadingState: false });
   });
+
+  it("suppresses loading for CREATED sessions even when a synthetic task-description message is present", () => {
+    // Prepare-only launches keep the session in CREATED with the "Start agent"
+    // button as the primary CTA. useProcessedMessages injects a synthetic
+    // task-description message so messagesCount is 1, but there is nothing to
+    // load — the spinner would clash with the button.
+    expect(
+      getConversationLoadingState({
+        messagesLoading: true,
+        messagesCount: 1,
+        isWorking: false,
+        sessionState: "CREATED",
+      }),
+    ).toEqual({ isInitialLoading: false, showLoadingState: false });
+  });
 });
 
 describe("MessageListStatus", () => {
diff --git a/apps/web/components/task/chat/message-list-shared.tsx b/apps/web/components/task/chat/message-list-shared.tsx
index 5eb6f6289d..e9628ad516 100644
--- a/apps/web/components/task/chat/message-list-shared.tsx
+++ b/apps/web/components/task/chat/message-list-shared.tsx
@@ -68,6 +68,14 @@ export function getConversationLoadingState(params: {
     params.sessionState === "FAILED" ||
     params.sessionState === "COMPLETED" ||
     params.sessionState === "CANCELLED";
+  // CREATED sessions are prepare-only: the agent hasn't been started yet, so
+  // there is no conversation to load and the "Start agent" button is the
+  // primary CTA. Suppress the spinner unconditionally to avoid a misleading
+  // overlay racing with that button (synthetic task-description counts as a
+  // message and would otherwise trip the messagesCount > 0 branch).
+  if (params.sessionState === "CREATED") {
+    return { isInitialLoading, showLoadingState: false };
+  }
   return {
     isInitialLoading,
     showLoadingState:
diff --git a/apps/web/components/task/workspace-switcher.tsx b/apps/web/components/task/workspace-switcher.tsx
index 7cf79da5ed..0da732646c 100644
--- a/apps/web/components/task/workspace-switcher.tsx
+++ b/apps/web/components/task/workspace-switcher.tsx
@@ -43,7 +43,7 @@ export function WorkspaceSwitcher({
           type="button"
           title="Switch Workspace"
           className={cn(
-            "group flex h-8 items-center gap-1.5 rounded-md border bg-background px-2.5 text-sm font-medium cursor-pointer",
+            "group flex h-8 min-w-0 items-center gap-1.5 rounded-md border bg-background px-2.5 text-sm font-medium cursor-pointer",
             "text-muted-foreground hover:text-foreground transition-colors duration-150",
             "focus:outline-none focus-visible:ring-2 focus-visible:ring-ring",
           )}
diff --git a/apps/web/e2e/pages/linear-settings-page.ts b/apps/web/e2e/pages/linear-settings-page.ts
index bc2214c2d8..652861c0c2 100644
--- a/apps/web/e2e/pages/linear-settings-page.ts
+++ b/apps/web/e2e/pages/linear-settings-page.ts
@@ -6,7 +6,11 @@ export class LinearSettingsPage {
   readonly saveButton: Locator;
   readonly deleteButton: Locator;
   readonly statusBanner: Locator;
+  readonly switcher: Locator;
   readonly workspaceTrigger: Locator;
+  readonly copyConfigTrigger: Locator;
+  readonly copyConfigTarget: Locator;
+  readonly copyConfigConfirm: Locator;
 
   constructor(private page: Page) {
     this.secretInput = page.getByTestId("linear-secret-input");
@@ -14,13 +18,15 @@ export class LinearSettingsPage {
     this.saveButton = page.getByTestId("linear-save-button");
     this.deleteButton = page.getByTestId("linear-delete-button");
     this.statusBanner = page.getByTestId("integration-auth-status-banner");
-    this.workspaceTrigger = page
-      .getByTestId("workspace-scoped-selector")
-      .getByTitle("Switch Workspace");
+    this.switcher = page.getByTestId("integration-workspace-switcher");
+    this.workspaceTrigger = this.switcher.getByTitle("Switch Workspace");
+    this.copyConfigTrigger = page.getByTestId("integration-copy-config-trigger");
+    this.copyConfigTarget = page.getByTestId("integration-copy-config-target");
+    this.copyConfigConfirm = page.getByTestId("integration-copy-config-confirm");
   }
 
-  async goto() {
-    await this.page.goto(`/settings/integrations/linear`);
+  async goto(query = "") {
+    await this.page.goto(`/settings/integrations/linear${query}`);
     await this.secretInput.waitFor({ state: "visible" });
   }
 }
diff --git a/apps/web/e2e/tests/integrations/linear-settings.spec.ts b/apps/web/e2e/tests/integrations/linear-settings.spec.ts
index ec5587142f..85a1a51bd8 100644
--- a/apps/web/e2e/tests/integrations/linear-settings.spec.ts
+++ b/apps/web/e2e/tests/integrations/linear-settings.spec.ts
@@ -66,6 +66,72 @@ test.describe("Linear settings", () => {
     await expect(testPage.getByText(/leave blank to keep the current value/i)).toHaveCount(0);
   });
 
+  test("a ?workspace deep link adopts that workspace on load", async ({ testPage, apiClient }) => {
+    const other = await apiClient.createWorkspace("Linear Deep Link Workspace");
+    // Seed the secondary workspace so the deep link lands on a configured row,
+    // proving the query param — not the user's global default — drove selection.
+    await apiClient.setLinearConfig({ secret: "lin_api_deeplink", workspaceId: other.id });
+
+    const settings = new LinearSettingsPage(testPage);
+    await settings.goto(`?workspace=${other.id}`);
+
+    await expect(settings.switcher).toContainText("Editing workspace");
+    await expect(settings.switcher).toContainText(other.name);
+    // The seeded row loads, confirming the deep link scoped the form to `other`.
+    await expect(testPage.getByText(/leave blank to keep the current value/i)).toBeVisible();
+  });
+
+  test("selecting a workspace writes it to the ?workspace query param", async ({
+    testPage,
+    apiClient,
+  }) => {
+    const other = await apiClient.createWorkspace("Linear Query Param Workspace");
+
+    const settings = new LinearSettingsPage(testPage);
+    await settings.goto();
+
+    await settings.workspaceTrigger.click();
+    await testPage.getByRole("menuitem", { name: new RegExp(other.name) }).click();
+
+    await expect(testPage).toHaveURL(new RegExp(`[?&]workspace=${other.id}(&|$)`));
+    await expect(settings.switcher).toContainText(other.name);
+  });
+
+  test("copy config duplicates the credentials to another workspace", async ({
+    testPage,
+    apiClient,
+  }) => {
+    const other = await apiClient.createWorkspace("Linear Copy Target Workspace");
+    await apiClient.mockLinearSetTeams([{ id: "team-1", key: "ENG", name: "Engineering" }]);
+
+    const settings = new LinearSettingsPage(testPage);
+    await settings.goto();
+
+    // Configure the source (default) workspace.
+    await settings.secretInput.fill("lin_api_source");
+    await settings.saveButton.click();
+    await expect(settings.deleteButton).toBeVisible();
+
+    // Copy the config to the empty target workspace via the dialog.
+    await settings.copyConfigTrigger.click();
+    await settings.copyConfigTarget.click();
+    await testPage.getByRole("option", { name: new RegExp(other.name) }).click();
+    await settings.copyConfigConfirm.click();
+    await expect(testPage.getByText(/Copied Linear config/i)).toBeVisible();
+
+    // The target workspace should now report a saved secret via the API.
+    const res = await apiClient.rawRequest("GET", `/api/v1/linear/config?workspace_id=${other.id}`);
+    expect(res.status).toBe(200);
+    const cfg = (await res.json()) as { hasSecret?: boolean };
+    expect(cfg.hasSecret).toBe(true);
+
+    // Switching to the target in the UI shows the copied credentials loaded.
+    await settings.workspaceTrigger.click();
+    await testPage.getByRole("menuitem", { name: new RegExp(other.name) }).click();
+    await expect(settings.deleteButton).toBeVisible();
+    await expect(testPage.getByText(/leave blank to keep the current value/i)).toBeVisible();
+  });
+
   test("test connection surfaces inline success and failure", async ({ testPage, apiClient }) => {
     const settings = new LinearSettingsPage(testPage);
     await settings.goto();
diff --git a/apps/web/lib/api/domains/github-api.test.ts b/apps/web/lib/api/domains/github-api.test.ts
index ddb853d0ed..425dd6fe3c 100644
--- a/apps/web/lib/api/domains/github-api.test.ts
+++ b/apps/web/lib/api/domains/github-api.test.ts
@@ -5,6 +5,7 @@ vi.mock("@/lib/config", () => ({
 }));
 
 import {
+  copyGitHubWorkspaceSettings,
   createTaskPR,
   fetchAccessibleRepos,
   fetchIssueInfo,
@@ -317,3 +318,18 @@ describe("task CI automation options", () => {
     });
   });
 });
+
+describe("copyGitHubWorkspaceSettings", () => {
+  it("POSTs targetWorkspaceId to /workspace-settings/copy scoped to the source", async () => {
+    fetchSpy.mockResolvedValueOnce(jsonResponse({ workspace_id: "ws-dst" }));
+
+    await copyGitHubWorkspaceSettings("ws-dst", { workspaceId: "ws-src" });
+
+    const call = fetchSpy.mock.calls.at(-1);
+    expect(String(call?.[0])).toBe(
+      "http://api.test/api/v1/github/workspace-settings/copy?workspace_id=ws-src",
+    );
+    expect(call?.[1]?.method).toBe("POST");
+    expect(JSON.parse(String(call?.[1]?.body))).toEqual({ targetWorkspaceId: "ws-dst" });
+  });
+});
diff --git a/apps/web/lib/api/domains/github-api.ts b/apps/web/lib/api/domains/github-api.ts
index 0b9164ae0f..db3f448bb8 100644
--- a/apps/web/lib/api/domains/github-api.ts
+++ b/apps/web/lib/api/domains/github-api.ts
@@ -654,6 +654,30 @@ export async function updateGitHubWorkspaceSettings(
   });
 }
 
+// copyGitHubWorkspaceSettings copies the per-workspace GitHub settings (repo
+// scope + presets) from the source workspace (options.workspaceId) to
+// targetWorkspaceId. GitHub auth is install-wide, so there are no credentials to
+// copy. The signature mirrors the other integrations' copy helpers
+// (targetWorkspaceId first, source via options) for consistency.
+export async function copyGitHubWorkspaceSettings(
+  targetWorkspaceId: string,
+  options: { workspaceId: string } & ApiRequestOptions,
+) {
+  const { workspaceId: sourceWorkspaceId, ...requestOptions } = options;
+  const query = new URLSearchParams({ workspace_id: sourceWorkspaceId });
+  return fetchJson<GitHubWorkspaceSettings>(
+    `/api/v1/github/workspace-settings/copy?${query.toString()}`,
+    {
+      ...requestOptions,
+      init: {
+        ...(requestOptions.init ?? {}),
+        method: "POST",
+        body: JSON.stringify({ targetWorkspaceId }),
+      },
+    },
+  );
+}
+
 // Action presets (quick-launch prompts on the /github page).
 export async function fetchGitHubActionPresets(workspaceId: string, options?: ApiRequestOptions) {
   const query = new URLSearchParams({ workspace_id: workspaceId });
diff --git a/apps/web/lib/api/domains/jira-api.ts b/apps/web/lib/api/domains/jira-api.ts
index 5d80e95ea8..6d4fb9fc5d 100644
--- a/apps/web/lib/api/domains/jira-api.ts
+++ b/apps/web/lib/api/domains/jira-api.ts
@@ -60,6 +60,15 @@ export async function testJiraConnection(
   });
 }
 
+// copyJiraConfig copies the Jira config + credential from the workspace in
+// options (source) to targetWorkspaceId.
+export async function copyJiraConfig(targetWorkspaceId: string, options?: WorkspaceApiOptions) {
+  return fetchJson<JiraConfig>(withWorkspace(`/api/v1/jira/config/copy`, options), {
+    ...requestOptions(options),
+    init: { ...(options?.init ?? {}), method: "POST", body: JSON.stringify({ targetWorkspaceId }) },
+  });
+}
+
 export async function listJiraProjects(options?: WorkspaceApiOptions) {
   return fetchJson<{ projects: JiraProject[] }>(
     withWorkspace(`/api/v1/jira/projects`, options),
diff --git a/apps/web/lib/api/domains/linear-api.test.ts b/apps/web/lib/api/domains/linear-api.test.ts
index b5d2be6c03..142686b16e 100644
--- a/apps/web/lib/api/domains/linear-api.test.ts
+++ b/apps/web/lib/api/domains/linear-api.test.ts
@@ -7,6 +7,7 @@ vi.mock("@/lib/config", () => ({
 }));
 
 import {
+  copyLinearConfig,
   createLinearIssueWatch,
   deleteLinearConfig,
   deleteLinearIssueWatch,
@@ -108,6 +109,17 @@ describe("setLinearConfig", () => {
   });
 });
 
+describe("copyLinearConfig", () => {
+  it("POSTs targetWorkspaceId to /config/copy scoped to the source workspace", async () => {
+    fetchSpy.mockResolvedValueOnce(jsonResponse({ authMethod: AUTH }));
+    await copyLinearConfig("ws-dst", { workspaceId: "ws-src" });
+    const { url, init } = lastCall();
+    expect(url).toBe(`${CONFIG_URL}/copy?workspace_id=ws-src`);
+    expect(init?.method).toBe("POST");
+    expect(JSON.parse(String(init?.body))).toEqual({ targetWorkspaceId: "ws-dst" });
+  });
+});
+
 describe("deleteLinearConfig", () => {
   it("issues DELETE on /config", async () => {
     fetchSpy.mockResolvedValueOnce(jsonResponse({ deleted: true }));
diff --git a/apps/web/lib/api/domains/linear-api.ts b/apps/web/lib/api/domains/linear-api.ts
index 0814e22bf6..f73ff9bed1 100644
--- a/apps/web/lib/api/domains/linear-api.ts
+++ b/apps/web/lib/api/domains/linear-api.ts
@@ -68,6 +68,15 @@ export async function testLinearConnection(
   );
 }
 
+// copyLinearConfig copies the Linear config + credential from the workspace in
+// options (source) to targetWorkspaceId.
+export async function copyLinearConfig(targetWorkspaceId: string, options?: WorkspaceApiOptions) {
+  return fetchJson<LinearConfig>(withWorkspace(`/api/v1/linear/config/copy`, options), {
+    ...requestOptions(options),
+    init: { ...(options?.init ?? {}), method: "POST", body: JSON.stringify({ targetWorkspaceId }) },
+  });
+}
+
 export async function listLinearTeams(options?: WorkspaceApiOptions) {
   return fetchJson<{ teams: LinearTeam[] }>(
     withWorkspace(`/api/v1/linear/teams`, options),
diff --git a/apps/web/lib/api/domains/sentry-api.ts b/apps/web/lib/api/domains/sentry-api.ts
index d1a0732d8a..09d8b3a85a 100644
--- a/apps/web/lib/api/domains/sentry-api.ts
+++ b/apps/web/lib/api/domains/sentry-api.ts
@@ -75,6 +75,15 @@ export async function testSentryConnection(
   );
 }
 
+// copySentryConfig copies the Sentry config + credential from the workspace in
+// options (source) to targetWorkspaceId.
+export async function copySentryConfig(targetWorkspaceId: string, options?: WorkspaceApiOptions) {
+  return fetchJson<SentryConfig>(withWorkspace(`/api/v1/sentry/config/copy`, options), {
+    ...requestOptions(options),
+    init: { ...(options?.init ?? {}), method: "POST", body: JSON.stringify({ targetWorkspaceId }) },
+  });
+}
+
 export async function listSentryOrganizations(options?: WorkspaceApiOptions) {
   return fetchJson<{ organizations: SentryOrganization[] }>(
     withWorkspace(`/api/v1/sentry/organizations`, options),
diff --git a/apps/web/lib/api/domains/slack-api.ts b/apps/web/lib/api/domains/slack-api.ts
index 4d3748d2d1..86d2a799cf 100644
--- a/apps/web/lib/api/domains/slack-api.ts
+++ b/apps/web/lib/api/domains/slack-api.ts
@@ -54,3 +54,12 @@ export async function testSlackConnection(
     init: { ...(options?.init ?? {}), method: "POST", body: JSON.stringify(payload) },
   });
 }
+
+// copySlackConfig copies the Slack config + credentials from the workspace in
+// options (source) to targetWorkspaceId.
+export async function copySlackConfig(targetWorkspaceId: string, options?: WorkspaceApiOptions) {
+  return fetchJson<SlackConfig>(withWorkspace(`/api/v1/slack/config/copy`, options), {
+    ...requestOptions(options),
+    init: { ...(options?.init ?? {}), method: "POST", body: JSON.stringify({ targetWorkspaceId }) },
+  });
+}