feat(pxpipe): PXPIPE token saver — multimodal prompt compression (#2465)

Add pxpipe as an experimental fifth Token Saver: Claude-format request
bodies above a configurable size threshold are rendered as dense PNGs
via the pxpipe-proxy library API (transformAnthropicMessages) before
dispatch, cutting estimated input tokens by ~35-60% on token-dense
contexts. Integration follows the Headroom pattern: applied to the final
body in chatCore just before dispatch, fail-open on any error/timeout.

Managed npm install into DATA_DIR/pxpipe, dynamic loader with per-version
cache-bust, JSONL event log with rotation, /api/pxpipe/* endpoints, Token
Saver card (marked experimental) + /dashboard/pxpipe page, and per-request
Activated/Skipped annotation in Request Details. Disabled by default.

src/app/(dashboard)/dashboard/pxpipe/PxpipeClient.js

@@ -0,0 +1,283 @@
+"use client";
+
+import { useState, useEffect, useCallback } from "react";
+import {
+  AreaChart,
+  Area,
+  XAxis,
+  YAxis,
+  CartesianGrid,
+  Tooltip,
+  ResponsiveContainer,
+} from "recharts";
+import { Card, Button } from "@/shared/components";
+
+const fmtTokens = (n) => {
+  if (n >= 1000000) return `${(n / 1000000).toFixed(2)}M`;
+  if (n >= 1000) return `${(n / 1000).toFixed(1)}K`;
+  return String(n || 0);
+};
+
+const fmtUptime = (ms) => {
+  if (!ms || ms <= 0) return "—";
+  const m = Math.floor(ms / 60000);
+  const h = Math.floor(m / 60);
+  return h > 0 ? `${h}h${String(m % 60).padStart(2, "0")}m` : `${m}m`;
+};
+
+const WINDOW_TABS = [
+  { id: "today", label: "Today" },
+  { id: "yesterday", label: "Yesterday" },
+  { id: "last7d", label: "7 days" },
+  { id: "last30d", label: "30 days" },
+  { id: "all", label: "All time" },
+];
+
+const REASON_LABELS = {
+  applied: "Prompt exceeded threshold",
+  below_threshold: "Below size threshold",
+  not_profitable: "Compression not profitable",
+  below_min_chars: "Below minimum chars",
+  below_min_tokens: "Below minimum tokens",
+  unsupported_model: "Model not in allowlist",
+  unsupported_format: "Non-Claude request format",
+  timeout: "Compression timed out",
+  transform_error: "Transform error",
+  passthrough: "Passthrough",
+  disabled: "Disabled",
+  not_installed: "Not installed",
+};
+
+function SummaryCard({ label, value, sub, tone }) {
+  return (
+    <Card className="p-4">
+      <p className="text-xs text-text-muted uppercase tracking-wide">{label}</p>
+      <p className={`text-xl font-semibold mt-1 ${tone || ""}`}>{value}</p>
+      {sub && <p className="text-xs text-text-muted mt-0.5">{sub}</p>}
+    </Card>
+  );
+}
+
+export default function PxpipeClient() {
+  const [status, setStatus] = useState(null);
+  const [health, setHealth] = useState(null);
+  const [stats, setStats] = useState(null);
+  const [logs, setLogs] = useState(null);
+  const [windowId, setWindowId] = useState("last7d");
+  const [loading, setLoading] = useState(true);
+
+  const refresh = useCallback(async () => {
+    setLoading(true);
+    try {
+      const [statusRes, statsRes, logsRes] = await Promise.all([
+        fetch("/api/pxpipe/status", { headers: { "Cache-Control": "no-store" } }),
+        fetch("/api/pxpipe/stats"),
+        fetch("/api/pxpipe/logs?limit=50"),
+      ]);
+      setStatus(await statusRes.json());
+      setStats(await statsRes.json());
+      setLogs(await logsRes.json());
+      const healthRes = await fetch("/api/pxpipe/health", { method: "POST" });
+      setHealth(await healthRes.json());
+    } catch {
+      /* sections render placeholders */
+    } finally {
+      setLoading(false);
+    }
+  }, []);
+
+  useEffect(() => {
+    refresh();
+  }, [refresh]);
+
+  const w = stats?.windows?.[windowId];
+  const statusLabel = !status
+    ? "—"
+    : !status.installed
+      ? "Not installed"
+      : health?.healthy
+        ? "Healthy"
+        : status.running
+          ? "Running"
+          : "Stopped";
+
+  return (
+    <div className="space-y-6 p-6">
+      <div className="flex items-center justify-between flex-wrap gap-3">
+        <h2 className="text-lg font-semibold flex items-center gap-2">
+          <span className="material-symbols-outlined text-primary">image</span>
+          PXPIPE Dashboard
+        </h2>
+        <div className="flex items-center gap-2">
+          <a href="/dashboard/token-saver" className="text-xs text-primary underline hover:opacity-80">
+            Token Saver settings
+          </a>
+          <Button size="sm" variant="ghost" onClick={refresh} disabled={loading}>
+            {loading ? "Refreshing…" : "Refresh"}
+          </Button>
+        </div>
+      </div>
+
+      <div className="grid grid-cols-2 md:grid-cols-3 lg:grid-cols-6 gap-3">
+        <SummaryCard
+          label="Status"
+          value={statusLabel}
+          tone={health?.healthy ? "text-success" : status?.installed ? "text-warning" : "text-text-muted"}
+          sub={status?.enabled ? "Enabled in pipeline" : "Disabled in pipeline"}
+        />
+        <SummaryCard label="Version" value={status?.version ? `v${status.version}` : "—"} sub="pxpipe-proxy" />
+        <SummaryCard label="Uptime" value={fmtUptime(status?.uptimeMs)} sub="module loaded" />
+        <SummaryCard label="Requests" value={w ? w.requests.toLocaleString() : "—"} />
+        <SummaryCard label="Compressed" value={w ? w.compressed.toLocaleString() : "—"} tone="text-success" />
+        <SummaryCard label="Bypassed" value={w ? w.bypassed.toLocaleString() : "—"} />
+      </div>
+
+      <Card className="p-4">
+        <div className="flex items-center justify-between flex-wrap gap-3 mb-4">
+          <h3 className="font-medium">Token savings (estimated)</h3>
+          <div className="flex items-center gap-1 rounded-lg border border-border bg-bg-subtle p-1">
+            {WINDOW_TABS.map((tab) => (
+              <button
+                key={tab.id}
+                onClick={() => setWindowId(tab.id)}
+                className={`px-3 py-1 rounded-md text-xs font-medium transition-colors ${
+                  windowId === tab.id
+                    ? "bg-primary text-white shadow-sm"
+                    : "text-text-muted hover:text-text hover:bg-bg-hover"
+                }`}
+              >
+                {tab.label}
+              </button>
+            ))}
+          </div>
+        </div>
+        <div className="grid grid-cols-2 md:grid-cols-4 gap-4 text-center">
+          <div>
+            <p className="text-xs text-text-muted">Original tokens</p>
+            <p className="text-lg font-semibold">{w ? fmtTokens(w.tokensBeforeEst) : "—"}</p>
+          </div>
+          <div>
+            <p className="text-xs text-text-muted">After PXPIPE</p>
+            <p className="text-lg font-semibold">{w ? fmtTokens(w.tokensAfterEst) : "—"}</p>
+          </div>
+          <div>
+            <p className="text-xs text-text-muted">Saved</p>
+            <p className="text-lg font-semibold text-success">{w ? fmtTokens(w.tokensSavedEst) : "—"}</p>
+          </div>
+          <div>
+            <p className="text-xs text-text-muted">Reduction</p>
+            <p className="text-lg font-semibold text-success">{w ? `${w.savedPct}%` : "—"}</p>
+          </div>
+        </div>
+        <p className="text-xs text-text-muted mt-3">
+          Estimates from body size before/after imaging; billed usage per request
+          (recorded on the Usage page) remains the ground truth. Images generated:{" "}
+          {w ? w.imagesGenerated.toLocaleString() : "—"} · avg compression time:{" "}
+          {w ? `${w.avgCompressionMs}ms` : "—"} · errors: {w ? w.errors : "—"}
+        </p>
+      </Card>
+
+      <Card className="p-4">
+        <h3 className="font-medium mb-3">Tokens saved — last 30 days</h3>
+        {stats?.timeline?.some((d) => d.tokensSavedEst > 0) ? (
+          <ResponsiveContainer width="100%" height={220}>
+            <AreaChart data={stats.timeline} margin={{ top: 4, right: 8, left: 0, bottom: 0 }}>
+              <defs>
+                <linearGradient id="gradPxpipe" x1="0" y1="0" x2="0" y2="1">
+                  <stop offset="5%" stopColor="#10b981" stopOpacity={0.25} />
+                  <stop offset="95%" stopColor="#10b981" stopOpacity={0} />
+                </linearGradient>
+              </defs>
+              <CartesianGrid strokeDasharray="3 3" strokeOpacity={0.2} />
+              <XAxis dataKey="date" tick={{ fontSize: 11 }} tickFormatter={(d) => d.slice(5)} />
+              <YAxis tick={{ fontSize: 11 }} tickFormatter={fmtTokens} width={48} />
+              <Tooltip formatter={(v) => [fmtTokens(v), "Tokens saved"]} labelFormatter={(d) => d} />
+              <Area type="monotone" dataKey="tokensSavedEst" stroke="#10b981" fill="url(#gradPxpipe)" strokeWidth={2} />
+            </AreaChart>
+          </ResponsiveContainer>
+        ) : (
+          <div className="h-32 flex items-center justify-center text-text-muted text-sm">
+            No savings recorded yet — enable PXPIPE in the Token Saver and route a large Claude-format request.
+          </div>
+        )}
+      </Card>
+
+      <Card className="p-4">
+        <h3 className="font-medium mb-3">History</h3>
+        <div className="overflow-x-auto">
+          <table className="w-full text-sm">
+            <thead>
+              <tr className="text-left text-xs text-text-muted border-b border-border">
+                <th className="py-2 pr-3">Time</th>
+                <th className="py-2 pr-3">Model</th>
+                <th className="py-2 pr-3 text-right">Original</th>
+                <th className="py-2 pr-3 text-right">Compressed</th>
+                <th className="py-2 pr-3 text-right">Saved</th>
+                <th className="py-2 pr-3 text-right">%</th>
+                <th className="py-2 pr-3 text-right">Duration</th>
+                <th className="py-2">Status</th>
+              </tr>
+            </thead>
+            <tbody>
+              {(stats?.recent || []).slice(0, 50).map((ev, i) => (
+                <tr key={`${ev.ts}-${i}`} className="border-b border-border/50">
+                  <td className="py-1.5 pr-3 whitespace-nowrap text-text-muted">
+                    {new Date(ev.ts).toLocaleString()}
+                  </td>
+                  <td className="py-1.5 pr-3 font-mono text-xs">{ev.provider ? `${ev.provider}/${ev.model}` : ev.model || "—"}</td>
+                  <td className="py-1.5 pr-3 text-right font-mono text-xs">
+                    {ev.applied ? fmtTokens(ev.tokensBeforeEst) : "—"}
+                  </td>
+                  <td className="py-1.5 pr-3 text-right font-mono text-xs">
+                    {ev.applied ? fmtTokens(ev.tokensAfterEst) : "—"}
+                  </td>
+                  <td className="py-1.5 pr-3 text-right font-mono text-xs text-success">
+                    {ev.applied ? fmtTokens(ev.tokensSavedEst) : "—"}
+                  </td>
+                  <td className="py-1.5 pr-3 text-right font-mono text-xs">
+                    {ev.applied ? `${ev.savedPct}%` : "—"}
+                  </td>
+                  <td className="py-1.5 pr-3 text-right font-mono text-xs">
+                    {ev.durationMs != null ? `${ev.durationMs}ms` : "—"}
+                  </td>
+                  <td className="py-1.5">
+                    <span
+                      className={`text-xs px-2 py-0.5 rounded ${
+                        ev.applied
+                          ? "bg-success/15 text-success"
+                          : ev.reason === "transform_error" || ev.reason === "timeout"
+                            ? "bg-danger/15 text-danger"
+                            : "bg-warning/15 text-warning"
+                      }`}
+                      title={ev.detail || ""}
+                    >
+                      {ev.applied ? "Compressed" : REASON_LABELS[ev.reason] || ev.reason}
+                    </span>
+                  </td>
+                </tr>
+              ))}
+              {(!stats?.recent || stats.recent.length === 0) && (
+                <tr>
+                  <td colSpan={8} className="py-6 text-center text-text-muted text-sm">
+                    No PXPIPE activity yet
+                  </td>
+                </tr>
+              )}
+            </tbody>
+          </table>
+        </div>
+      </Card>
+
+      <Card className="p-4" id="logs">
+        <h3 className="font-medium mb-3">PXPIPE Logs</h3>
+        {logs?.installLog ? (
+          <pre className="rounded bg-black/5 dark:bg-white/5 p-3 text-xs font-mono overflow-x-auto max-h-64 overflow-y-auto whitespace-pre-wrap">
+            {logs.installLog}
+          </pre>
+        ) : (
+          <p className="text-sm text-text-muted">No install log yet.</p>
+        )}
+      </Card>
+    </div>
+  );
+}

src/app/(dashboard)/dashboard/pxpipe/page.js

@@ -0,0 +1,5 @@
+import PxpipeClient from "./PxpipeClient";
+
+export default function PxpipePage() {
+  return <PxpipeClient />;
+}

src/app/(dashboard)/dashboard/token-saver/TokenSaverClient.js

@@ -37,6 +37,19 @@ export default function TokenSaverClient() {
   const [cavemanLevel, setCavemanLevel] = useState("full");
   const [ponytailEnabled, setPonytailEnabled] = useState(false);
   const [ponytailLevel, setPonytailLevel] = useState("full");
+  const [pxpipeEnabled, setPxpipeEnabled] = useState(false);
+  const [pxpipeMinChars, setPxpipeMinChars] = useState(25000);
+  const [pxpipeStatus, setPxpipeStatus] = useState({
+    installed: false,
+    installing: false,
+    running: false,
+    version: null,
+    loading: true,
+  });
+  const [pxpipeHealth, setPxpipeHealth] = useState(null);
+  const [showPxpipeModal, setShowPxpipeModal] = useState(false);
+  const [pxpipeActionLoading, setPxpipeActionLoading] = useState(false);
+  const [pxpipeActionError, setPxpipeActionError] = useState("");
   const [locale, setLocale] = useState("en");
 
   const { copied, copy } = useCopyToClipboard();
@@ -232,6 +245,59 @@ export default function TokenSaverClient() {
     patchSetting({ ponytailLevel: level });
   };
 
+  const refreshPxpipeStatus = useCallback(async () => {
+    setPxpipeStatus((s) => ({ ...s, loading: true }));
+    try {
+      const res = await fetch("/api/pxpipe/status", {
+        headers: { "Cache-Control": "no-store" },
+      });
+      const data = await res.json();
+      setPxpipeStatus({ ...data, loading: false });
+      if (typeof data.minChars === "number") setPxpipeMinChars(data.minChars);
+    } catch {
+      setPxpipeStatus({ installed: false, installing: false, running: false, version: null, loading: false });
+    }
+  }, []);
+
+  const runPxpipeHealth = useCallback(async () => {
+    try {
+      const res = await fetch("/api/pxpipe/health", { method: "POST" });
+      setPxpipeHealth(await res.json());
+    } catch (e) {
+      setPxpipeHealth({ healthy: false, checks: [], error: e.message });
+    }
+  }, []);
+
+  const pxpipeAction = useCallback(
+    async (endpoint) => {
+      setPxpipeActionError("");
+      setPxpipeActionLoading(true);
+      try {
+        const res = await fetch(`/api/pxpipe/${endpoint}`, { method: "POST" });
+        const data = await res.json().catch(() => ({}));
+        if (!res.ok) throw new Error(data.error || `PXPIPE ${endpoint} failed`);
+        await refreshPxpipeStatus();
+        await runPxpipeHealth();
+      } catch (e) {
+        setPxpipeActionError(e.message);
+      } finally {
+        setPxpipeActionLoading(false);
+      }
+    },
+    [refreshPxpipeStatus, runPxpipeHealth]
+  );
+
+  const handlePxpipeEnabled = (value) => {
+    setPxpipeEnabled(value);
+    patchSetting({ pxpipeEnabled: value });
+  };
+
+  const handlePxpipeMinCharsBlur = () => {
+    const next = Math.max(0, Number(pxpipeMinChars) || 25000);
+    setPxpipeMinChars(next);
+    patchSetting({ pxpipeMinChars: next });
+  };
+
   useEffect(() => {
     const loadSettings = async () => {
       try {
@@ -245,12 +311,16 @@ export default function TokenSaverClient() {
           setCavemanLevel(data.cavemanLevel || "full");
           setPonytailEnabled(!!data.ponytailEnabled);
           setPonytailLevel(data.ponytailLevel || "full");
+          setPxpipeEnabled(!!data.pxpipeEnabled);
+          if (typeof data.pxpipeMinChars === "number") setPxpipeMinChars(data.pxpipeMinChars);
           refreshHeadroomStatus();
+          // PRD: run the PXPIPE health check automatically when the page opens
+          refreshPxpipeStatus().then(runPxpipeHealth);
         }
       } catch {}
     };
     loadSettings();
-  }, [refreshHeadroomStatus]);
+  }, [refreshHeadroomStatus, refreshPxpipeStatus, runPxpipeHealth]);
 
   const headroomRunning = !!headroomStatus.running;
   const headroomStatusLabel = headroomStatus.loading
@@ -267,6 +337,23 @@ export default function TokenSaverClient() {
   const headroomManaged =
     headroomLocalUrl && !!headroomStatus.managedPid;
 
+  const pxpipeHealthy = pxpipeHealth?.healthy === true;
+  const pxpipeStatusLabel = pxpipeStatus.loading
+    ? "Checking…"
+    : pxpipeStatus.installing
+      ? "Installing…"
+      : !pxpipeStatus.installed
+        ? "Not installed"
+        : pxpipeHealthy
+          ? "Healthy"
+          : pxpipeStatus.running
+            ? "Running"
+            : "Stopped";
+  const pxpipeChipClass =
+    pxpipeHealthy || pxpipeStatus.running
+      ? "bg-success/15 text-success"
+      : "bg-warning/15 text-warning";
+
   return (
     <div className="space-y-6 p-6">
       <Card id="rtk">
@@ -502,6 +589,49 @@ export default function TokenSaverClient() {
             />
           </div>
         </div>
+        <div className="flex items-center justify-between pt-4 mt-4 border-t border-border gap-4 flex-wrap">
+          <div className="min-w-0 flex-1">
+            <div className="flex items-center gap-3 flex-wrap">
+              <p className="font-medium">
+                Compress prompts as images{" "}
+                <a
+                  href="https://github.com/teamchong/pxpipe"
+                  target="_blank"
+                  rel="noreferrer"
+                  className="text-xs font-normal text-primary underline hover:opacity-80"
+                >
+                  (PXPIPE)
+                </a>
+              </p>
+              <span className={`text-xs px-2 py-0.5 rounded ${pxpipeChipClass}`}>
+                {pxpipeStatusLabel}
+              </span>
+              <button
+                type="button"
+                onClick={() => setShowPxpipeModal(true)}
+                className="text-xs text-primary underline hover:opacity-80"
+              >
+                {pxpipeStatus.installed ? "Manage" : "Setup"}
+              </button>
+              <a
+                href="/dashboard/pxpipe"
+                className="text-xs text-primary underline hover:opacity-80"
+              >
+                Dashboard
+              </a>
+            </div>
+            <p className="text-sm text-text-muted mt-1">
+              Transforms large textual context into optimized images before
+              sending to the LLM. Ideal for huge prompts, tool outputs and long
+              conversations.
+            </p>
+          </div>
+          <Toggle
+            checked={pxpipeEnabled}
+            disabled={!pxpipeStatus.installed}
+            onChange={() => handlePxpipeEnabled(!pxpipeEnabled)}
+          />
+        </div>
       </Card>
 
       <Modal
@@ -611,6 +741,114 @@ export default function TokenSaverClient() {
           </div>
         </div>
       </Modal>
+
+      <Modal
+        isOpen={showPxpipeModal}
+        title={pxpipeStatus.installed ? "PXPIPE" : "Setup PXPIPE"}
+        onClose={() => setShowPxpipeModal(false)}
+      >
+        <div className="flex flex-col gap-4">
+          <p className="text-sm text-text-muted">
+            Compress prompts using multimodal encoding. Runs in-process — no
+            extra server or environment variables required.
+          </p>
+          <div className="flex items-center justify-between text-sm">
+            <span>Status</span>
+            <span className={pxpipeHealthy || pxpipeStatus.running ? "text-success" : "text-warning"}>
+              {pxpipeStatusLabel}
+              {pxpipeStatus.version ? ` · v${pxpipeStatus.version}` : ""}
+            </span>
+          </div>
+          {pxpipeHealth?.checks?.length > 0 && (
+            <div className="flex flex-col gap-1 rounded border border-border p-3">
+              <p className="text-sm font-medium mb-1">Health check</p>
+              {pxpipeHealth.checks.map((check) => (
+                <div key={check.id} className="flex items-center justify-between text-xs">
+                  <span className={check.ok ? "text-success" : "text-warning"}>
+                    {check.ok ? "●" : "○"} {check.label}
+                  </span>
+                  {check.detail && (
+                    <span className="text-text-muted font-mono truncate max-w-[50%]">{check.detail}</span>
+                  )}
+                </div>
+              ))}
+              {pxpipeHealth.error && (
+                <p className="text-xs text-warning mt-1">{pxpipeHealth.error}</p>
+              )}
+            </div>
+          )}
+          {!pxpipeStatus.installed ? (
+            <div className="flex flex-col gap-2">
+              <p className="text-sm text-warning">PXPIPE is not installed.</p>
+              <Button
+                onClick={() => pxpipeAction("install")}
+                fullWidth
+                disabled={pxpipeActionLoading || pxpipeStatus.installing}
+              >
+                {pxpipeActionLoading || pxpipeStatus.installing ? "Installing…" : "Install"}
+              </Button>
+              <p className="text-xs text-text-muted">
+                Installs the npm package <code className="font-mono">pxpipe-proxy</code> into
+                the 9Router data directory. May take a few minutes.
+              </p>
+            </div>
+          ) : (
+            <div className="grid grid-cols-2 gap-2">
+              {pxpipeStatus.running ? (
+                <>
+                  <Button onClick={() => pxpipeAction("restart")} variant="ghost" disabled={pxpipeActionLoading}>
+                    Restart
+                  </Button>
+                  <Button onClick={() => pxpipeAction("stop")} variant="ghost" disabled={pxpipeActionLoading}>
+                    Stop
+                  </Button>
+                </>
+              ) : (
+                <Button onClick={() => pxpipeAction("start")} disabled={pxpipeActionLoading}>
+                  {pxpipeActionLoading ? "Starting…" : "Start"}
+                </Button>
+              )}
+              <Button onClick={() => pxpipeAction("install")} variant="ghost" disabled={pxpipeActionLoading}>
+                Repair
+              </Button>
+              <a
+                href="/dashboard/pxpipe#logs"
+                className="col-span-2 rounded border border-border px-4 py-2 text-center text-sm hover:bg-surface-2"
+              >
+                Open Logs
+              </a>
+            </div>
+          )}
+          <div className="flex flex-col gap-1">
+            <p className="text-sm font-medium">Minimum prompt size (chars)</p>
+            <Input
+              value={String(pxpipeMinChars)}
+              onChange={(e) => setPxpipeMinChars(e.target.value)}
+              onBlur={handlePxpipeMinCharsBlur}
+              placeholder="25000"
+              className="font-mono text-sm"
+            />
+            <p className="text-xs text-text-muted">
+              Requests smaller than this bypass PXPIPE and are sent as-is.
+            </p>
+          </div>
+          {pxpipeActionError && (
+            <p className="text-sm text-warning">{pxpipeActionError}</p>
+          )}
+          <div className="flex gap-2">
+            <Button
+              onClick={() => refreshPxpipeStatus().then(runPxpipeHealth)}
+              variant="ghost"
+              fullWidth
+            >
+              Recheck
+            </Button>
+            <Button onClick={() => setShowPxpipeModal(false)} fullWidth>
+              Done
+            </Button>
+          </div>
+        </div>
+      </Modal>
     </div>
   );
 }

src/app/(dashboard)/dashboard/usage/components/RequestDetailsTab.js

@@ -412,7 +412,49 @@ export default function RequestDetailsTab() {
                 </span>
               </div>
             </div>
-            
+
+            {selectedDetail.pxpipe && (
+              <div className="rounded-lg border border-black/5 dark:border-white/5 p-4">
+                <div className="flex items-center gap-2 mb-2">
+                  <span className="material-symbols-outlined text-[18px] text-text-muted">image</span>
+                  <span className="font-semibold text-sm text-text-main">PXPIPE</span>
+                  <span className={cn(
+                    "text-xs px-2 py-0.5 rounded",
+                    selectedDetail.pxpipe.applied
+                      ? "bg-green-500/15 text-green-600"
+                      : "bg-amber-500/15 text-amber-600"
+                  )}>
+                    {selectedDetail.pxpipe.applied ? "Activated" : "Skipped"}
+                  </span>
+                </div>
+                {selectedDetail.pxpipe.applied ? (
+                  <div className="grid grid-cols-2 gap-2 text-sm sm:grid-cols-4">
+                    <div>
+                      <span className="text-text-muted block text-xs">Original (est.)</span>
+                      <span className="font-mono">{(selectedDetail.pxpipe.tokensBeforeEst || 0).toLocaleString()} tokens</span>
+                    </div>
+                    <div>
+                      <span className="text-text-muted block text-xs">Compressed (est.)</span>
+                      <span className="font-mono">{(selectedDetail.pxpipe.tokensAfterEst || 0).toLocaleString()} tokens</span>
+                    </div>
+                    <div>
+                      <span className="text-text-muted block text-xs">Saved</span>
+                      <span className="font-mono text-green-600">{selectedDetail.pxpipe.savedPct || 0}%</span>
+                    </div>
+                    <div>
+                      <span className="text-text-muted block text-xs">Images</span>
+                      <span className="font-mono">{selectedDetail.pxpipe.imageCount || 0} ({selectedDetail.pxpipe.durationMs || 0}ms)</span>
+                    </div>
+                  </div>
+                ) : (
+                  <p className="text-sm text-text-muted">
+                    Reason: <span className="font-mono">{selectedDetail.pxpipe.reason}</span>
+                    {selectedDetail.pxpipe.detail ? ` — ${selectedDetail.pxpipe.detail}` : ""}
+                  </p>
+                )}
+              </div>
+            )}
+
             <div className="space-y-4">
               <CollapsibleSection title="1. Client Request (Input)" defaultOpen={true} icon="input">
                 <pre className="max-h-[300px] max-w-full overflow-auto rounded-lg border border-black/5 bg-black/5 p-3 font-mono text-xs text-text-main dark:border-white/5 dark:bg-white/5 sm:p-4">