feat: make Coder Agents right sidebar app and port tabs generally available (#26906)

The workspace-app and port preview tabs in the Coder Agents right panel
were gated behind the `agent-app-tabs` deployment experiment. This
removes the experiment entirely and renders the app and port tabs
unconditionally, so the add-panel dropdown, workspace-app tabs, and port
preview tabs are always available alongside terminals.

## Changes

- Remove the `ExperimentAgentAppTabs` constant, its `DisplayName()`
case, and its `ExperimentsKnown` registration in
`codersdk/deployment.go`, then regenerate
`site/src/api/typesGenerated.ts`, `coderd/apidoc/docs.go`,
`coderd/apidoc/swagger.json`, and `docs/reference/api/schemas.md`.
- Drop the frontend experiment gate in `AgentChatPageView.tsx`
(including the now-unused `useDashboard`/`experiments` usage) so
persisted app and port tabs are no longer filtered out.
- Remove the `appExperimentEnabled` prop from `RightPanelAddTabControl`
and render the add-panel dropdown unconditionally; update the stories
accordingly.

This reverses the gating introduced in #26395.

note: the diff is tiny if you hide whitespace changes

coderd/apidoc/docs.go

@@ -19630,13 +19630,11 @@ const docTemplate = `{
                 "nats_pubsub",
                 "minimum-implicit-member",
                 "ai-gateway-cost-control",
-                "agent-app-tabs",
                 "chat-advisor",
                 "chat-virtual-desktop"
             ],
             "x-enum-comments": {
                 "ExperimentAIGatewayCostControl": "Enables AI Gateway cost control functionality.",
-                "ExperimentAgentAppTabs": "Enables workspace-app and port preview tabs in the Coder Agents right panel.",
                 "ExperimentAutoFillParameters": "This should not be taken out of experiments until we have redesigned the feature.",
                 "ExperimentChatAdvisor": "Enables the advisor tool for root agent chats.",
                 "ExperimentChatVirtualDesktop": "Enables virtual desktop and computer use provider for agents.",
@@ -19660,7 +19658,6 @@ const docTemplate = `{
                 "Enables embedded NATS pubsub.",
                 "Allows organizations to deviate from the default organization-member roles, in support of Gateway Accounts.",
                 "Enables AI Gateway cost control functionality.",
-                "Enables workspace-app and port preview tabs in the Coder Agents right panel.",
                 "Enables the advisor tool for root agent chats.",
                 "Enables virtual desktop and computer use provider for agents."
             ],
@@ -19675,7 +19672,6 @@ const docTemplate = `{
                 "ExperimentNATSPubsub",
                 "ExperimentMinimumImplicitMember",
                 "ExperimentAIGatewayCostControl",
-                "ExperimentAgentAppTabs",
                 "ExperimentChatAdvisor",
                 "ExperimentChatVirtualDesktop"
             ]

coderd/apidoc/swagger.json

@@ -17823,13 +17823,11 @@
 				"nats_pubsub",
 				"minimum-implicit-member",
 				"ai-gateway-cost-control",
-				"agent-app-tabs",
 				"chat-advisor",
 				"chat-virtual-desktop"
 			],
 			"x-enum-comments": {
 				"ExperimentAIGatewayCostControl": "Enables AI Gateway cost control functionality.",
-				"ExperimentAgentAppTabs": "Enables workspace-app and port preview tabs in the Coder Agents right panel.",
 				"ExperimentAutoFillParameters": "This should not be taken out of experiments until we have redesigned the feature.",
 				"ExperimentChatAdvisor": "Enables the advisor tool for root agent chats.",
 				"ExperimentChatVirtualDesktop": "Enables virtual desktop and computer use provider for agents.",
@@ -17853,7 +17851,6 @@
 				"Enables embedded NATS pubsub.",
 				"Allows organizations to deviate from the default organization-member roles, in support of Gateway Accounts.",
 				"Enables AI Gateway cost control functionality.",
-				"Enables workspace-app and port preview tabs in the Coder Agents right panel.",
 				"Enables the advisor tool for root agent chats.",
 				"Enables virtual desktop and computer use provider for agents."
 			],
@@ -17868,7 +17865,6 @@
 				"ExperimentNATSPubsub",
 				"ExperimentMinimumImplicitMember",
 				"ExperimentAIGatewayCostControl",
-				"ExperimentAgentAppTabs",
 				"ExperimentChatAdvisor",
 				"ExperimentChatVirtualDesktop"
 			]

codersdk/deployment.go

@@ -5197,7 +5197,6 @@ const (
 	ExperimentNATSPubsub            Experiment = "nats_pubsub"             // Enables embedded NATS pubsub.
 	ExperimentMinimumImplicitMember Experiment = "minimum-implicit-member" // Allows organizations to deviate from the default organization-member roles, in support of Gateway Accounts.
 	ExperimentAIGatewayCostControl  Experiment = "ai-gateway-cost-control" // Enables AI Gateway cost control functionality.
-	ExperimentAgentAppTabs          Experiment = "agent-app-tabs"          // Enables workspace-app and port preview tabs in the Coder Agents right panel.
 	ExperimentChatAdvisor           Experiment = "chat-advisor"            // Enables the advisor tool for root agent chats.
 	ExperimentChatVirtualDesktop    Experiment = "chat-virtual-desktop"    // Enables virtual desktop and computer use provider for agents.
 )
@@ -5224,8 +5223,6 @@ func (e Experiment) DisplayName() string {
 		return "Gateway Accounts (minimum implicit member)"
 	case ExperimentAIGatewayCostControl:
 		return "AI Gateway Cost Control"
-	case ExperimentAgentAppTabs:
-		return "Coder Agents App and Port Tabs"
 	case ExperimentChatAdvisor:
 		return "Chat Advisor"
 	case ExperimentChatVirtualDesktop:
@@ -5250,7 +5247,6 @@ var ExperimentsKnown = Experiments{
 	ExperimentWorkspaceBuildUpdates,
 	ExperimentMinimumImplicitMember,
 	ExperimentAIGatewayCostControl,
-	ExperimentAgentAppTabs,
 	ExperimentChatAdvisor,
 	ExperimentChatVirtualDesktop,
 }

docs/reference/api/schemas.md

@@ -7087,9 +7087,9 @@ CreateWorkspaceRequest provides options for creating a new workspace. Only one o
 
 #### Enumerated Values
 
-| Value(s)                                                                                                                                                                                                                                                     |
-|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
-| `agent-app-tabs`, `ai-gateway-cost-control`, `auto-fill-parameters`, `chat-advisor`, `chat-virtual-desktop`, `example`, `mcp-server-http`, `minimum-implicit-member`, `nats_pubsub`, `notifications`, `oauth2`, `workspace-build-updates`, `workspace-usage` |
+| Value(s)                                                                                                                                                                                                                                   |
+|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
+| `ai-gateway-cost-control`, `auto-fill-parameters`, `chat-advisor`, `chat-virtual-desktop`, `example`, `mcp-server-http`, `minimum-implicit-member`, `nats_pubsub`, `notifications`, `oauth2`, `workspace-build-updates`, `workspace-usage` |
 
 ## codersdk.ExternalAPIKeyScopes
 

site/src/api/typesGenerated.ts

@@ -4586,7 +4586,6 @@ export const EntitlementsWarningHeader = "X-Coder-Entitlements-Warning";
 // From codersdk/deployment.go
 export type Experiment =
 	| "ai-gateway-cost-control"
-	| "agent-app-tabs"
 	| "auto-fill-parameters"
 	| "chat-advisor"
 	| "chat-virtual-desktop"
@@ -4601,7 +4600,6 @@ export type Experiment =
 
 export const Experiments: Experiment[] = [
 	"ai-gateway-cost-control",
-	"agent-app-tabs",
 	"auto-fill-parameters",
 	"chat-advisor",
 	"chat-virtual-desktop",

site/src/pages/AgentsPage/AgentChatPageView.tsx

@@ -22,7 +22,6 @@ import { useProxy } from "#/contexts/ProxyContext";
 import { isWorkspaceAppEmbeddable } from "#/modules/apps/apps";
 import { WorkspaceAppFrame } from "#/modules/apps/WorkspaceAppFrame";
 import { findWorkspaceAppWithAgent } from "#/modules/apps/workspaceApps";
-import { useDashboard } from "#/modules/dashboard/useDashboard";
 import { cn } from "#/utils/cn";
 import { pageTitle } from "#/utils/page";
 import { findWorkspaceAgent } from "#/utils/workspace";
@@ -387,7 +386,6 @@ export const AgentChatPageView: FC<AgentChatPageViewProps> = ({
 	const queryClient = useQueryClient();
 	const { proxy } = useProxy();
 	const wildcardHostname = proxy.preferredWildcardHostname;
-	const { experiments } = useDashboard();
 
 	const canOpenChatSharing = canShareChat && organizationId !== undefined;
 
@@ -494,19 +492,10 @@ export const AgentChatPageView: FC<AgentChatPageViewProps> = ({
 	const availableDesktopChatId =
 		workspace && workspaceAgent ? desktopChatId : undefined;
 
-	// Workspace app and port preview tabs are gated behind the agent-app-tabs
-	// experiment. Terminal tabs are generally available. Derived after all hook
-	// calls so the React Compiler keeps the tab list and the tab-open handlers
-	// below in a single memoization scope.
-	const userAppTabsEnabled = experiments.includes("agent-app-tabs");
-
-	// When app and port tabs are gated off, persisted tabs of those kinds
-	// are hidden rather than deleted; the save effect persists the raw tab
-	// state, so they reappear if the gate lifts.
 	const validatedUserRightPanelTabs = validateUserRightPanelTabs(
 		userRightPanelTabs,
 		{ workspace, workspaceAgent, wildcardHostname },
-	).filter((tab) => userAppTabsEnabled || tab.kind === "terminal");
+	);
 
 	const hasBuiltInTerminal = Boolean(
 		workspace && workspaceAgent && !defaultTerminalHidden,
@@ -1001,7 +990,6 @@ export const AgentChatPageView: FC<AgentChatPageViewProps> = ({
 							tabs={sidebarTabs}
 							addTabControl={
 								<RightPanelAddTabControl
-									appExperimentEnabled={userAppTabsEnabled}
 									workspace={workspace}
 									agent={workspaceAgent}
 									host={wildcardHostname}

site/src/pages/AgentsPage/components/RightPanel/RightPanelAddTabControl.stories.tsx

@@ -48,7 +48,6 @@ const meta = {
 	title: "pages/AgentsPage/components/RightPanel/RightPanelAddTabControl",
 	component: RightPanelAddTabControl,
 	args: {
-		appExperimentEnabled: true,
 		workspace: MockWorkspace,
 		agent: {
 			...MockWorkspaceAgent,
@@ -176,14 +175,3 @@ export const DisconnectedWorkspace: Story = {
 		});
 	},
 };
-
-export const AppExperimentDisabled: Story = {
-	args: {
-		appExperimentEnabled: false,
-	},
-	play: async ({ canvasElement }) => {
-		const canvas = within(canvasElement);
-		await expect(canvas.getByLabelText("New terminal tab")).toBeEnabled();
-		await expect(canvas.queryByLabelText("Add panel")).not.toBeInTheDocument();
-	},
-};

site/src/pages/AgentsPage/components/RightPanel/RightPanelAddTabControl.tsx

@@ -59,7 +59,6 @@ const AgentPortsSubMenu: FC<{
 };
 
 export const RightPanelAddTabControl: FC<{
-	appExperimentEnabled: boolean;
 	workspace?: Workspace;
 	agent?: WorkspaceAgent;
 	host?: string;
@@ -69,7 +68,6 @@ export const RightPanelAddTabControl: FC<{
 	onOpenCommandApp?: (app: WorkspaceApp) => void;
 	onOpenPort?: (selection: PortSelection) => void;
 }> = ({
-	appExperimentEnabled,
 	workspace,
 	agent,
 	host = "",
@@ -93,119 +91,114 @@ export const RightPanelAddTabControl: FC<{
 				disabled={!canCreateTerminal}
 				aria-label="New terminal tab"
 				title="New terminal tab"
-				className={cn(
-					"size-6 rounded-none border-0 bg-transparent p-0 text-content-secondary hover:bg-surface-secondary hover:text-content-primary",
-					appExperimentEnabled && "border-r border-solid border-border-default",
-				)}
+				className="size-6 rounded-none border-0 bg-transparent p-0 text-content-secondary hover:bg-surface-secondary hover:text-content-primary border-r border-solid border-border-default"
 			>
 				<PlusIcon className="size-3.5" />
 			</Button>
-			{appExperimentEnabled && (
-				<DropdownMenu open={open} onOpenChange={setOpen}>
-					<DropdownMenuTrigger asChild>
-						<Button
-							variant="subtle"
-							size="icon"
-							aria-label="Add panel"
-							className="size-6 rounded-none border-0 bg-transparent p-0 text-content-secondary hover:bg-surface-secondary hover:text-content-primary"
-						>
-							<ChevronDownIcon
-								className={cn(
-									"size-3 transition-transform",
-									open && "rotate-180",
-								)}
-							/>
-						</Button>
-					</DropdownMenuTrigger>
-					<DropdownMenuContent
-						align="end"
-						side="bottom"
-						className="w-52 p-1 [&_[role=menuitem]]:py-1 [&_[role=menuitem]]:text-xs [&_img]:!size-3.5 [&_svg]:!size-3.5"
+			<DropdownMenu open={open} onOpenChange={setOpen}>
+				<DropdownMenuTrigger asChild>
+					<Button
+						variant="subtle"
+						size="icon"
+						aria-label="Add panel"
+						className="size-6 rounded-none border-0 bg-transparent p-0 text-content-secondary hover:bg-surface-secondary hover:text-content-primary"
 					>
-						<DropdownMenuItem
-							onSelect={onNewTerminal}
-							disabled={!canCreateTerminal}
-						>
-							<SquareTerminalIcon />
-							New Terminal
-						</DropdownMenuItem>
+						<ChevronDownIcon
+							className={cn(
+								"size-3 transition-transform",
+								open && "rotate-180",
+							)}
+						/>
+					</Button>
+				</DropdownMenuTrigger>
+				<DropdownMenuContent
+					align="end"
+					side="bottom"
+					className="w-52 p-1 [&_[role=menuitem]]:py-1 [&_[role=menuitem]]:text-xs [&_img]:!size-3.5 [&_svg]:!size-3.5"
+				>
+					<DropdownMenuItem
+						onSelect={onNewTerminal}
+						disabled={!canCreateTerminal}
+					>
+						<SquareTerminalIcon />
+						New Terminal
+					</DropdownMenuItem>
 
-						{workspace && agent && userApps.length > 0 && (
-							<>
-								<DropdownMenuSeparator className="my-1" />
-								{userApps.map((app) => {
-									if (app.command && onOpenCommandApp) {
-										return (
-											<DropdownMenuItem
-												key={app.id}
-												onSelect={() => onOpenCommandApp(app)}
-												disabled={!isRunning}
-											>
-												{app.icon ? (
-													<ExternalImage
-														src={app.icon}
-														alt=""
-														className="rounded-sm"
-													/>
-												) : (
-													<SquareTerminalIcon />
-												)}
-												{app.display_name ?? app.slug}
-											</DropdownMenuItem>
-										);
-									}
-									if (isWorkspaceAppEmbeddable(app) && onOpenWorkspaceApp) {
-										return (
-											<DropdownMenuItem
-												key={app.id}
-												onSelect={() => onOpenWorkspaceApp(app)}
-												disabled={!isRunning}
-											>
-												{app.icon ? (
-													<ExternalImage
-														src={app.icon}
-														alt=""
-														className="rounded-sm"
-													/>
-												) : (
-													<LayoutGridIcon />
-												)}
-												{app.display_name ?? app.slug}
-											</DropdownMenuItem>
-										);
-									}
+					{workspace && agent && userApps.length > 0 && (
+						<>
+							<DropdownMenuSeparator className="my-1" />
+							{userApps.map((app) => {
+								if (app.command && onOpenCommandApp) {
 									return (
-										<AppLink
+										<DropdownMenuItem
 											key={app.id}
-											workspace={workspace}
-											agent={agent}
-											app={app}
-											grouped
-										/>
+											onSelect={() => onOpenCommandApp(app)}
+											disabled={!isRunning}
+										>
+											{app.icon ? (
+												<ExternalImage
+													src={app.icon}
+													alt=""
+													className="rounded-sm"
+												/>
+											) : (
+												<SquareTerminalIcon />
+											)}
+											{app.display_name ?? app.slug}
+										</DropdownMenuItem>
 									);
-								})}
-							</>
-						)}
-
-						{workspace &&
-							agent &&
-							onOpenPort &&
-							canShowPortForwarding(agent, host) && (
-								<>
-									<DropdownMenuSeparator className="my-1" />
-									<AgentPortsSubMenu
+								}
+								if (isWorkspaceAppEmbeddable(app) && onOpenWorkspaceApp) {
+									return (
+										<DropdownMenuItem
+											key={app.id}
+											onSelect={() => onOpenWorkspaceApp(app)}
+											disabled={!isRunning}
+										>
+											{app.icon ? (
+												<ExternalImage
+													src={app.icon}
+													alt=""
+													className="rounded-sm"
+												/>
+											) : (
+												<LayoutGridIcon />
+											)}
+											{app.display_name ?? app.slug}
+										</DropdownMenuItem>
+									);
+								}
+								return (
+									<AppLink
+										key={app.id}
 										workspace={workspace}
 										agent={agent}
-										host={host}
-										isOpen={open}
-										isRunning={isRunning}
-										onPortSelect={onOpenPort}
+										app={app}
+										grouped
 									/>
-								</>
-							)}
-					</DropdownMenuContent>
-				</DropdownMenu>
-			)}
+								);
+							})}
+						</>
+					)}
+
+					{workspace &&
+						agent &&
+						onOpenPort &&
+						canShowPortForwarding(agent, host) && (
+							<>
+								<DropdownMenuSeparator className="my-1" />
+								<AgentPortsSubMenu
+									workspace={workspace}
+									agent={agent}
+									host={host}
+									isOpen={open}
+									isRunning={isRunning}
+									onPortSelect={onOpenPort}
+								/>
+							</>
+						)}
+				</DropdownMenuContent>
+			</DropdownMenu>
 		</div>
 	);
 };