refactor(lanes): drop the workflow skills and Superpowers link; pipelines go dormant

The plugin stops shipping its workflow layer:
- skills/ship-feature and skills/ship-feature-lane, the 18 stage/ship slash
  commands (plugin.json keeps agenthub-doctor/update/open), and all four
  agents/ (qc-local, senior-gate-reviewer, backend-reviewer, frontend-reviewer).
- CLI `agenthub skills install`, `agenthub lanes agents install`,
  `agenthub ship-full|ship-quick`; routes POST /api/skills/install and
  POST /api/lanes/:id/agents/install; the Settings button, the lane Tools
  menu item and the Add-lane setup step that called them.
- The Superpowers auto-install: server/lib/skill-plugins.js, the bootstrap's
  autoInstallSkillPlugins / skillPluginsSettled gate and the doctor row.

Pipelines are kept but dormant: server/data/pipelines/ is deleted, so no
template ships. `default` resolves to EMPTY_PIPELINE (no nodes, progress 0),
createLane still accepts it, POST /api/lanes/:id/stage answers 400
ENOPIPELINE, and the Workspace hides the stage timer, pickers, PipelineMap
and strip stage chip for a lane with no nodes. A template dropped into
DASHBOARD_PIPELINES_DIR turns it all back on. The server suite loads its
templates from server/__tests__/fixtures/pipelines/.

Docs: CLAUDE.md (marker, retired rules), README(.vi), INSTALL, ARCHITECTURE,
docs/LANES|PLUGINS|CLI|API, agenthub-introduction.html.

client/src/components/lanes/AddLaneModal.tsx

@@ -115,7 +115,6 @@ export function AddLaneModal({
   const [browseOpen, setBrowseOpen] = useState(false);
   const [setupResult, setSetupResult] = useState<{
     profile: "scaffolded" | "skipped" | "failed";
-    agents: "ok" | "failed";
     mcp: "ok" | "failed";
     router: "ok" | "skipped" | "failed";
   } | null>(null);
@@ -294,7 +293,7 @@ export function AddLaneModal({
       // POST /worktree returns as soon as the DB row exists (202) — the
       // actual `git worktree add` runs afterward, in the background, on the
       // server. Firing setup against the lane's cwd before that finishes
-      // means agents/mcp write into a directory that doesn't exist yet, so
+      // means mcp writes into a directory that doesn't exist yet, so
       // wait for provisioning to leave the "provisioning" status first.
       const provisionedLane = await waitForProvisioned(result.lane.id);
       if (!provisionedLane || provisionedLane.status === "failed") {
@@ -303,9 +302,8 @@ export function AddLaneModal({
         return;
       }
 
-      const [profileOutcome, agentsOutcome, mcpOutcome, routerOutcome] = await Promise.allSettled([
+      const [profileOutcome, mcpOutcome, routerOutcome] = await Promise.allSettled([
         api.lanes.profileInit(result.lane.id),
-        api.lanes.agentsInstall(result.lane.id),
         api.lanes.mcpSync(result.lane.id),
         applyRouter(result.lane.id),
       ]);
@@ -316,7 +314,6 @@ export function AddLaneModal({
               ? "scaffolded"
               : "skipped"
             : "failed",
-        agents: agentsOutcome.status === "fulfilled" ? "ok" : "failed",
         mcp: mcpOutcome.status === "fulfilled" ? "ok" : "failed",
         router:
           routerOutcome.status !== "fulfilled" ? "failed" : router === "native" ? "skipped" : "ok",
@@ -328,7 +325,6 @@ export function AddLaneModal({
         console.info("[add-lane] auto-setup result:", {
           profile:
             profileOutcome.status === "fulfilled" ? profileOutcome.value : profileOutcome.reason,
-          agents: agentsOutcome.status === "fulfilled" ? agentsOutcome.value : agentsOutcome.reason,
           mcp: mcpOutcome.status === "fulfilled" ? mcpOutcome.value : mcpOutcome.reason,
           // Never the profile itself: it would put an endpoint and a lane id in
           // the browser console. (The key is never sent here at all.)
@@ -740,7 +736,6 @@ export function AddLaneModal({
                   ok: setupResult.profile !== "failed",
                   skipped: setupResult.profile === "skipped",
                 },
-                { label: t("addLaneSetupAgents"), ok: setupResult.agents === "ok" },
                 { label: t("addLaneSetupMcp"), ok: setupResult.mcp === "ok" },
                 {
                   label: t("addLaneSetupRouter"),

client/src/components/lanes/LaneCard.tsx

@@ -271,7 +271,7 @@ export function since(sec: number | null): string {
 }
 
 /**
- * Repo tooling (agents install / MCP sync / dev-sync check, and the
+ * Repo tooling (MCP sync / dev-sync check, and the
  * create/update-readme run, which moved here from the Add-lane modal) for one lane,
  * collapsed into a single dropdown. Lives outside LaneCard so it can be
  * placed in the Workspace page header, next to "Add lane" — it polls its
@@ -281,16 +281,11 @@ export function since(sec: number | null): string {
 export function LaneToolsMenu({ lane }: { lane: Lane }) {
   const { t } = useTranslation(["lanes"]);
   const [toolsMenuOpen, setToolsMenuOpen] = useState(false);
-  const [laneActionBusy, setLaneActionBusy] = useState<
-    "agents" | "mcp" | "sync-check" | "docs" | null
-  >(null);
+  const [laneActionBusy, setLaneActionBusy] = useState<"mcp" | "sync-check" | "docs" | null>(null);
   const [laneActionResult, setLaneActionResult] = useState<string | null>(null);
   const runtime = useLaneRuntime(lane.id, 0);
 
-  const runLaneAction = async (
-    which: "agents" | "mcp" | "sync-check" | "docs",
-    fn: () => Promise<string>
-  ) => {
+  const runLaneAction = async (which: "mcp" | "sync-check" | "docs", fn: () => Promise<string>) => {
     setLaneActionBusy(which);
     setLaneActionResult(null);
     try {
@@ -302,12 +297,6 @@ export function LaneToolsMenu({ lane }: { lane: Lane }) {
     }
   };
 
-  const handleAgentsInstall = () =>
-    runLaneAction("agents", async () => {
-      const result = await api.lanes.agentsInstall(lane.id);
-      return t("actions.agentsInstallResult", { files: result.installed.join(", ") });
-    });
-
   // A skill only exists inside a CLI session, so there is nothing server-side
   // to call: this opens the lane's own terminal run with the slash command as
   // its first message. Claude-only — codex has no slash commands.
@@ -363,22 +352,6 @@ export function LaneToolsMenu({ lane }: { lane: Lane }) {
           role="menu"
           className="absolute right-0 z-10 mt-1 min-w-44 overflow-hidden rounded-md border border-border-light bg-surface-0 py-1 shadow-lg shadow-black/40"
         >
-          {/* Claude-only: other CLIs have no agents to install. */}
-          {lane.tool === "claude" && (
-            <button
-              type="button"
-              role="menuitem"
-              data-testid="lane-agents-install"
-              onClick={(e) => {
-                e.stopPropagation();
-                setToolsMenuOpen(false);
-                void handleAgentsInstall();
-              }}
-              className="block w-full px-3 py-1.5 text-left text-fg-secondary hover:bg-surface-2"
-            >
-              {t("actions.agentsInstall")}
-            </button>
-          )}
           {lane.tool === "claude" && (
             <button
               type="button"

client/src/components/lanes/LaneStripCard.tsx

@@ -42,7 +42,7 @@ const LIVENESS_DOT: Record<Lane["liveness"], string> = {
  * recordDetection refuses any detection that isn't strictly ahead.
  */
 function detectionLeads(lane: Lane): boolean {
-  if (!lane.detected_stage) return false;
+  if (!lane.detected_stage || !lane.pipeline_nodes.length) return false;
   const nodes = lane.pipeline_nodes;
   return (
     nodes.findIndex((n) => n.id === lane.detected_stage) >=
@@ -116,9 +116,9 @@ export default function LaneStripCard({
         <span className="shrink-0 text-[10px] font-semibold tracking-widest text-fg-muted">
           #{lane.id}
         </span>
-        {/* Only claude lanes carry a pipeline; the others show their CLI's
-            tag in place of the stage chip. */}
-        {lane.tool !== "claude" ? (
+        {/* Only claude lanes carry a pipeline, and only while a template is
+            installed; the others show their CLI's tag in place of the stage chip. */}
+        {lane.tool !== "claude" || lane.pipeline_nodes.length === 0 ? (
           <span className="shrink-0 rounded border border-border bg-surface-2 px-1.5 py-0.5 text-[10px] text-fg-muted">
             {LANE_TOOL_LABEL[lane.tool]}
           </span>

client/src/components/lanes/__tests__/AddLaneModal.test.tsx

@@ -27,7 +27,6 @@ vi.mock("../../../lib/api", () => ({
       browse: vi.fn(),
       get: vi.fn(),
       profileInit: vi.fn(),
-      agentsInstall: vi.fn(),
       mcpSync: vi.fn(),
       routerApply: vi.fn(),
     },
@@ -120,7 +119,6 @@ beforeEach(() => {
   vi.mocked(api.lanes.profileInit)
     .mockReset()
     .mockResolvedValue({ scaffolded: false, reason: "no detectable Node.js project" });
-  vi.mocked(api.lanes.agentsInstall).mockReset().mockResolvedValue({ installed: [] });
   vi.mocked(api.lanes.mcpSync).mockReset().mockResolvedValue({ servers: [], profilesSeeded: [] });
   vi.mocked(api.lanes.routerApply).mockReset().mockResolvedValue({
     tool: "claude",
@@ -383,7 +381,7 @@ describe("AddLaneModal — worktree mode (default)", () => {
     expect(screen.queryByRole("dialog")).toBeNull();
   });
 
-  it("fires profileInit, agentsInstall, and mcpSync after a successful worktree call", async () => {
+  it("fires profileInit and mcpSync after a successful worktree call", async () => {
     vi.mocked(api.lanes.branches).mockResolvedValue({
       branches: ["main"],
       current: "main",
@@ -401,7 +399,6 @@ describe("AddLaneModal — worktree mode (default)", () => {
 
     await waitFor(() => expect(api.lanes.worktree).toHaveBeenCalled());
     await waitFor(() => expect(api.lanes.profileInit).toHaveBeenCalledWith(42));
-    expect(api.lanes.agentsInstall).toHaveBeenCalledWith(42);
     expect(api.lanes.mcpSync).toHaveBeenCalledWith(42);
     await waitFor(() => expect(onAdded).toHaveBeenCalled());
   });
@@ -416,7 +413,6 @@ describe("AddLaneModal — worktree mode (default)", () => {
       lane: { id: 43, title: "demo2", cwd: "/lanes/demo2", status: "provisioning" } as Lane,
     });
     vi.mocked(api.lanes.profileInit).mockRejectedValue(new Error("boom"));
-    vi.mocked(api.lanes.agentsInstall).mockRejectedValue(new Error("boom"));
     vi.mocked(api.lanes.mcpSync).mockRejectedValue(new Error("boom"));
     const onAdded = vi.fn();
     const onClose = vi.fn();
@@ -482,7 +478,6 @@ describe("AddLaneModal — worktree mode (default)", () => {
     await waitFor(() => expect(onAdded).toHaveBeenCalled());
     expect(await screen.findByText(/auto-setup was skipped/)).toBeInTheDocument();
     expect(api.lanes.profileInit).not.toHaveBeenCalled();
-    expect(api.lanes.agentsInstall).not.toHaveBeenCalled();
     expect(api.lanes.mcpSync).not.toHaveBeenCalled();
   });
 });

client/src/components/lanes/__tests__/LaneCard.test.tsx

@@ -23,7 +23,6 @@ vi.mock("../../../lib/api", () => ({
       up: vi.fn(),
       down: vi.fn(),
       preflight: vi.fn().mockResolvedValue({ blocked: [], warnings: [] }),
-      agentsInstall: vi.fn(),
       mcpSync: vi.fn(),
       syncBaseCheck: vi.fn(),
       routerApply: vi.fn(),
@@ -309,17 +308,6 @@ describe("LaneToolsMenu", () => {
     } as unknown as LaneRuntime);
   });
 
-  it("clicking Install agents calls the API and shows the result", async () => {
-    vi.mocked(api.lanes.agentsInstall).mockResolvedValue({
-      installed: ["qc-local.md", "senior-gate-reviewer.md"],
-    });
-    render(<LaneToolsMenu lane={makeLane()} />);
-    await userEvent.click(await screen.findByTestId("lane-tools-menu"));
-    await userEvent.click(await screen.findByTestId("lane-agents-install"));
-    await waitFor(() => expect(api.lanes.agentsInstall).toHaveBeenCalledWith(1));
-    expect(await screen.findByTestId("lane-action-result")).toHaveTextContent("qc-local.md");
-  });
-
   it("clicking Sync MCP calls the API and shows the result", async () => {
     vi.mocked(api.lanes.mcpSync).mockResolvedValue({
       servers: ["playwright"],

client/src/i18n/locales/en/lanes.json

@@ -7,8 +7,6 @@
   "action.stop": "stop",
   "actionError": "Lane action failed: {{message}}",
   "actionErrorUnknown": "Unknown error",
-  "actions.agentsInstall": "Install agents",
-  "actions.agentsInstallResult": "Installed: {{files}}",
   "actions.busy": "…",
   "actions.mcpSync": "Sync MCP",
   "actions.mcpSyncResult": "Synced: {{servers}}",
@@ -49,7 +47,6 @@
   "addLaneRouterLoading": "Loading router profiles…",
   "addLaneRouterNative": "Native",
   "addLaneRouterProfileLabel": "Router profile",
-  "addLaneSetupAgents": "Agents",
   "addLaneSetupClose": "Close",
   "addLaneSetupMcp": "MCP servers",
   "addLaneSetupProfile": "Profile",

client/src/i18n/locales/en/settings.json

@@ -63,9 +63,7 @@
   },
   "lanesSection": {
     "title": "Lanes",
-    "description": "Machine-wide housekeeping and one-time setup for the ship-feature-lane pipeline.",
-    "installSkill": "Install ship-feature-lane skill",
-    "installSkillSuccess": "Installed to {{path}}",
+    "description": "Machine-wide lane housekeeping.",
     "runHousekeeping": "Run housekeeping",
     "dryRun": "Dry run",
     "gcResult": "Reaped {{reaped}} process(es), capped {{capped}} log(s)"

client/src/i18n/locales/vi/lanes.json

@@ -7,8 +7,6 @@
   "action.stop": "Dừng",
   "actionError": "Thao tác làn đường thất bại: {{message}}",
   "actionErrorUnknown": "Lỗi không xác định",
-  "actions.agentsInstall": "Cài agent",
-  "actions.agentsInstallResult": "Đã cài: {{files}}",
   "actions.busy": "…",
   "actions.mcpSync": "Đồng bộ MCP",
   "actions.mcpSyncResult": "Đã đồng bộ: {{servers}}",
@@ -49,7 +47,6 @@
   "addLaneRouterLoading": "Đang tải danh sách router…",
   "addLaneRouterNative": "Native",
   "addLaneRouterProfileLabel": "Profile router",
-  "addLaneSetupAgents": "Agent",
   "addLaneSetupClose": "Đóng",
   "addLaneSetupMcp": "MCP server",
   "addLaneSetupProfile": "Profile",

client/src/i18n/locales/vi/settings.json

@@ -63,9 +63,7 @@
   },
   "lanesSection": {
     "title": "Lanes",
-    "description": "Bảo trì toàn máy và cài đặt một lần cho pipeline ship-feature-lane.",
-    "installSkill": "Cài skill ship-feature-lane",
-    "installSkillSuccess": "Đã cài vào {{path}}",
+    "description": "Dọn dẹp lane trên toàn máy.",
     "runHousekeeping": "Chạy dọn dẹp",
     "dryRun": "Chạy thử (dry run)",
     "gcResult": "Đã dọn {{reaped}} tiến trình, cắt {{capped}} log"

client/src/lib/api.ts

@@ -1130,8 +1130,6 @@ export const api = {
         purged_events: number;
         purged_agents: number;
       }>("/settings/cleanup", { method: "POST", body: JSON.stringify(params) }),
-    skillsInstall: () =>
-      request<{ installed: true; path: string }>("/skills/install", { method: "POST", body: "{}" }),
     gc: (body: { dryRun?: boolean } = {}) =>
       request<{ reaped: number[]; capped: { path: string; sizeBefore: number }[] }>("/lanes/gc", {
         method: "POST",
@@ -2719,11 +2717,6 @@ export const api = {
           body: JSON.stringify(body),
         }),
     },
-    agentsInstall: (id: number) =>
-      request<{ installed: string[] }>(`/lanes/${id}/agents/install`, {
-        method: "POST",
-        body: "{}",
-      }),
     /**
      * POST /lanes/:id/router/apply - point this lane at an AI Router profile,
      * or back at `native`. Writes the lane's own config on disk; only the

client/src/pages/Settings.tsx

@@ -699,12 +699,6 @@ export function Settings() {
       return res.ok ? t("hooks.success") : t("hooks.failed");
     });
 
-  const handleSkillsInstall = () =>
-    runAction("skills-install", async () => {
-      const res = await api.settings.skillsInstall();
-      return t("lanesSection.installSkillSuccess", { path: res.path });
-    });
-
   const handleGc = () =>
     runAction("gc", async () => {
       const res = await api.settings.gc({ dryRun: gcDryRun });
@@ -1354,23 +1348,6 @@ export function Settings() {
         <p className="text-xs text-fg-muted mb-4">{t("lanesSection.description")}</p>
 
         <div className="card p-5 space-y-4">
-          <div className="flex items-center justify-between flex-wrap gap-3">
-            <span className="text-xs text-fg-secondary">{t("lanesSection.installSkill")}</span>
-            <button
-              onClick={handleSkillsInstall}
-              disabled={actionLoading !== null}
-              className="btn-ghost text-xs disabled:opacity-50"
-            >
-              {actionLoading === "skills-install" ? (
-                <RefreshCw className="w-3.5 h-3.5 animate-spin" />
-              ) : (
-                <RotateCcw className="w-3.5 h-3.5" />
-              )}
-              {t("lanesSection.installSkill")}
-            </button>
-          </div>
-          {actionBanner(["skills-install"])}
-
           <div className="flex items-center justify-between flex-wrap gap-3">
             <label className="flex items-center gap-2 text-xs text-fg-secondary">
               <input

client/src/pages/Workspace.tsx

@@ -523,8 +523,10 @@ export function Workspace() {
   }, [refreshList]);
 
   const currentLane = selectedLaneId !== null ? lanes.find((l) => l.id === selectedLaneId) : null;
-  // Only claude lanes carry a pipeline (codex and antigravity emit no hooks).
-  const noPipeline = !!currentLane && currentLane.tool !== "claude";
+  // Only claude lanes carry a pipeline (codex and antigravity emit no hooks),
+  // and only while a template is installed — none ships, so it is dormant.
+  const noPipeline =
+    !!currentLane && (currentLane.tool !== "claude" || currentLane.pipeline_nodes.length === 0);
 
   // Feature list follows the selected lane, resets the viewer on lane switch.
   useEffect(() => {
@@ -817,8 +819,9 @@ export function Workspace() {
                     <Pencil className="h-3 w-3 shrink-0 text-fg-muted opacity-0 transition-opacity group-hover:opacity-100" />
                   </button>
                 )}
-                {/* Non-claude lanes carry no pipeline: no time-at-stage, no
-                    pipeline or feature picker, no map. */}
+                {/* A lane with no pipeline (non-claude, or no template
+                    installed): no time-at-stage, no pipeline or feature
+                    picker, no map. */}
                 {!noPipeline && (
                   <span className="shrink-0 tabular-nums text-xs text-fg-muted">
                     {since(currentLane.stage_seconds)}
@@ -882,7 +885,7 @@ export function Workspace() {
                   </>
                 )}
                 <div className="ml-auto flex items-center gap-2">
-                  {/* Per-lane actions (agents install, mcp sync, sync-base check)
+                  {/* Per-lane actions (mcp sync, sync-base check)
                     belong beside the lane they act on, not in a page header. */}
                   <LaneToolsMenu lane={currentLane} />
                   <button

client/src/pages/__tests__/__snapshots__/screens.snapshot.test.tsx.snap

@@ -8435,44 +8435,11 @@ exports[`screen snapshots > Settings 1`] = `
       <p
         class="text-xs text-fg-muted mb-4"
       >
-        Machine-wide housekeeping and one-time setup for the ship-feature-lane pipeline.
+        Machine-wide lane housekeeping.
       </p>
       <div
         class="card p-5 space-y-4"
       >
-        <div
-          class="flex items-center justify-between flex-wrap gap-3"
-        >
-          <span
-            class="text-xs text-fg-secondary"
-          >
-            Install ship-feature-lane skill
-          </span>
-          <button
-            class="btn-ghost text-xs disabled:opacity-50"
-          >
-            <svg
-              class="lucide lucide-rotate-ccw w-3.5 h-3.5"
-              fill="none"
-              height="24"
-              stroke="currentColor"
-              stroke-linecap="round"
-              stroke-linejoin="round"
-              stroke-width="2"
-              viewBox="0 0 24 24"
-              width="24"
-              xmlns="http://www.w3.org/2000/svg"
-            >
-              <path
-                d="M3 12a9 9 0 1 0 9-9 9.75 9.75 0 0 0-6.74 2.74L3 8"
-              />
-              <path
-                d="M3 3v5h5"
-              />
-            </svg>
-            Install ship-feature-lane skill
-          </button>
-        </div>
         <div
           class="flex items-center justify-between flex-wrap gap-3"
         >