diff --git a/packaging/mac-client/Sources/Lisa/MenuBarController.swift b/packaging/mac-client/Sources/Lisa/MenuBarController.swift
index 6ac58b9..3c4df5d 100644
--- a/packaging/mac-client/Sources/Lisa/MenuBarController.swift
+++ b/packaging/mac-client/Sources/Lisa/MenuBarController.swift
@@ -93,9 +93,9 @@ final class MenuBarController: NSObject, NSPopoverDelegate {
 
     private func refreshOnce() async {
         // Two parallel requests — ping (mood + desire + idle message) and
-        // sessions (Claude Code active). Either failing means "offline".
+        // sessions (ALL observed agents). Either failing means "offline".
         let pingURL = URL(string: "http://localhost:5757/api/island/ping")!
-        let sessURL = URL(string: "http://localhost:5757/api/claude/sessions")!
+        let sessURL = URL(string: "http://localhost:5757/api/agents/sessions")!
         let cfg = URLRequest.CachePolicy.reloadIgnoringLocalCacheData
 
         async let pingResult: PingDTO? = await Self.fetch(PingDTO.self, url: pingURL, cachePolicy: cfg)
@@ -379,7 +379,7 @@ final class MenuBarController: NSObject, NSPopoverDelegate {
         v.alignment = .leading
         v.spacing = 6
         v.translatesAutoresizingMaskIntoConstraints = false
-        let t = NSTextField(labelWithString: "CLAUDE CODE · \(sessions.count) ACTIVE")
+        let t = NSTextField(labelWithString: "AGENTS · \(sessions.count) ACTIVE")
         t.font = .systemFont(ofSize: 10, weight: .semibold)
         t.textColor = .tertiaryLabelColor
         v.addArrangedSubview(t)
@@ -387,18 +387,105 @@ final class MenuBarController: NSObject, NSPopoverDelegate {
         let row = NSStackView()
         row.orientation = .horizontal
         row.spacing = 6
-        let orange = NSColor(srgbRed: 1.0, green: 0.55, blue: 0.26, alpha: 1)
-        let red    = NSColor(srgbRed: 1.0, green: 0.33, blue: 0.47, alpha: 1)
-        if waiting > 0 { row.addArrangedSubview(chip("\(waiting) waiting", color: orange)) }
-        if working > 0 { row.addArrangedSubview(chip("\(working) working", color: orange.withAlphaComponent(0.72))) }
-        if errors  > 0 { row.addArrangedSubview(chip("\(errors) errored", color: red)) }
+        if waiting > 0 { row.addArrangedSubview(chip("\(waiting) waiting", color: Self.stateOrange)) }
+        if working > 0 { row.addArrangedSubview(chip("\(working) working", color: Self.stateOrange.withAlphaComponent(0.72))) }
+        if errors  > 0 { row.addArrangedSubview(chip("\(errors) errored", color: Self.stateRed)) }
         if waiting == 0 && working == 0 && errors == 0 {
             row.addArrangedSubview(chip("idle", color: .systemGray))
         }
         v.addArrangedSubview(row)
+
+        // Per-agent rows, attention-sorted (error > waiting > working), capped.
+        let rank: [String: Int] = ["error": 0, "waiting": 1, "working": 2]
+        let sorted = sessions.sorted { (rank[$0.state] ?? 9) < (rank[$1.state] ?? 9) }
+        let cap = 6
+        for s in sorted.prefix(cap) { v.addArrangedSubview(agentRow(s, inner: inner)) }
+        if sorted.count > cap {
+            let more = NSTextField(labelWithString: "+\(sorted.count - cap) more")
+            more.font = .systemFont(ofSize: 10)
+            more.textColor = .tertiaryLabelColor
+            v.addArrangedSubview(more)
+        }
         return v
     }
 
+    private static let stateOrange = NSColor(srgbRed: 1.0, green: 0.55, blue: 0.26, alpha: 1)
+    private static let stateRed    = NSColor(srgbRed: 1.0, green: 0.33, blue: 0.47, alpha: 1)
+
+    /// One agent's row: ● state-dot · kind · branch/project label, with the
+    /// structural activity line beneath. Mirrors the GUI roster row.
+    private func agentRow(_ s: SessionDTO, inner: CGFloat) -> NSView {
+        let dotColor: NSColor = s.state == "error" ? Self.stateRed
+            : (s.state == "waiting" || s.state == "working") ? Self.stateOrange : .systemGray
+
+        let dot = NSView()
+        dot.wantsLayer = true
+        dot.layer?.backgroundColor = dotColor.cgColor
+        dot.layer?.cornerRadius = 3.5
+        dot.translatesAutoresizingMaskIntoConstraints = false
+        dot.widthAnchor.constraint(equalToConstant: 7).isActive = true
+        dot.heightAnchor.constraint(equalToConstant: 7).isActive = true
+
+        let kind = NSTextField(labelWithString: (s.agent ?? "agent"))
+        kind.font = .systemFont(ofSize: 9, weight: .semibold)
+        kind.textColor = .tertiaryLabelColor
+
+        let label = NSTextField(labelWithString: oneLine(agentLabel(s), 40))
+        label.font = .systemFont(ofSize: 12, weight: .medium)
+        label.textColor = .labelColor
+        label.lineBreakMode = .byTruncatingTail
+
+        let top = NSStackView(views: [dot, kind, label])
+        top.orientation = .horizontal
+        top.spacing = 6
+        top.alignment = .centerY
+
+        let col = NSStackView(views: [top])
+        col.orientation = .vertical
+        col.alignment = .leading
+        col.spacing = 1
+
+        let act = agentActivity(s)
+        if !act.isEmpty {
+            let actLabel = NSTextField(labelWithString: oneLine(act, 52))
+            actLabel.font = .systemFont(ofSize: 10)
+            actLabel.textColor = .secondaryLabelColor
+            actLabel.lineBreakMode = .byTruncatingTail
+            col.addArrangedSubview(actLabel)
+        }
+        return col
+    }
+
+    /// Branch label (strip "claude/"), else project. Mirrors rosterLabel.
+    private func agentLabel(_ s: SessionDTO) -> String {
+        if let b = s.activity?.gitBranch, !b.isEmpty {
+            return b.hasPrefix("claude/") ? String(b.dropFirst("claude/".count)) : b
+        }
+        return s.project ?? "agent"
+    }
+
+    /// One-line structural activity. Mirrors agent-roster.ts formatActivity.
+    private func agentActivity(_ s: SessionDTO) -> String {
+        guard let a = s.activity else { return "" }
+        if let p = a.pendingPermission, !p.isEmpty { return "⚠ wants to run " + p }
+        var bits: [String] = []
+        if let e = a.lastError, !e.isEmpty { bits.append("✗ " + e) }
+        var prog: [String] = []
+        if let n = a.turnCount, n > 0 { prog.append("turn \(n)") }
+        if let tk = a.tokens {
+            let tot = (tk.input ?? 0) + (tk.output ?? 0)
+            if tot > 0 { prog.append(tot >= 1000 ? "\(Int((Double(tot) / 1000).rounded()))k tok" : "\(tot) tok") }
+        }
+        if !prog.isEmpty { bits.append(prog.joined(separator: " ")) }
+        if let c = a.lastCommandName, !c.isEmpty { bits.append("$ " + c) }
+        let tool = a.lastTools?.last ?? ""
+        let file = (a.filesTouched?.last).map { String($0.split(separator: "/").last ?? "") } ?? ""
+        if !tool.isEmpty && !file.isEmpty { bits.append(tool + " " + file) }
+        else if !tool.isEmpty { bits.append(tool) }
+        else if !file.isEmpty { bits.append(file) }
+        return bits.joined(separator: " · ")
+    }
+
     /// A small rounded status chip (tinted background + colored label).
     private func chip(_ text: String, color: NSColor) -> NSView {
         let label = NSTextField(labelWithString: text)
@@ -499,6 +586,23 @@ final class MenuBarController: NSObject, NSPopoverDelegate {
     }
     private struct SessionDTO: Decodable {
         let state: String
+        var agent: String?
+        var project: String?
+        var activity: ActivityDTO?
+    }
+    private struct ActivityDTO: Decodable {
+        var gitBranch: String?
+        var turnCount: Int?
+        var tokens: TokensDTO?
+        var lastTools: [String]?
+        var filesTouched: [String]?
+        var lastCommandName: String?
+        var lastError: String?
+        var pendingPermission: String?
+    }
+    private struct TokensDTO: Decodable {
+        var input: Int?
+        var output: Int?
     }
     private struct PingDTO: Decodable {
         let online: Bool?
diff --git a/src/web/agent-roster.test.ts b/src/web/agent-roster.test.ts
index 1881833..8645919 100644
--- a/src/web/agent-roster.test.ts
+++ b/src/web/agent-roster.test.ts
@@ -1,6 +1,6 @@
 import { test, describe } from "node:test";
 import assert from "node:assert/strict";
-import { mergeAgentSession, aggregateAgentState, rosterLabel, type RosterSession } from "./agent-roster.js";
+import { mergeAgentSession, aggregateAgentState, rosterLabel, formatActivity, type RosterSession } from "./agent-roster.js";
 
 const NOW = 1_700_000_000_000;
 const WINDOW = 30 * 60_000;
@@ -57,7 +57,7 @@ describe("source-injection safety (island injects these verbatim)", () => {
   // island.ts embeds `${mergeAgentSession}` into the page; the browser eval's
   // the function source. Assert each is self-contained: its source eval's to a
   // working function with no external references.
-  for (const fn of [mergeAgentSession, aggregateAgentState, rosterLabel]) {
+  for (const fn of [mergeAgentSession, aggregateAgentState, rosterLabel, formatActivity]) {
     test(`${fn.name} source eval's to a working function`, () => {
       // eslint-disable-next-line @typescript-eslint/no-implied-eval
       const rebuilt = new Function(`return (${fn.toString()})`)() as (...a: unknown[]) => unknown;
@@ -66,6 +66,8 @@ describe("source-injection safety (island injects these verbatim)", () => {
         assert.equal(rebuilt([s({ state: "error" })], NOW, WINDOW), "error");
       } else if (fn === rosterLabel) {
         assert.equal(rebuilt(s({ project: "p" })), "p");
+      } else if (fn === formatActivity) {
+        assert.equal(rebuilt(s({ activity: { pendingPermission: "bash" } })), "⚠ wants to run bash");
       } else {
         assert.equal((rebuilt([], s(), NOW, WINDOW) as RosterSession[]).length, 1);
       }
@@ -73,6 +75,34 @@ describe("source-injection safety (island injects these verbatim)", () => {
   }
 });
 
+describe("formatActivity", () => {
+  test("no activity → empty", () => {
+    assert.equal(formatActivity(s({ activity: undefined })), "");
+  });
+  test("pendingPermission wins over everything", () => {
+    assert.equal(
+      formatActivity(s({ activity: { pendingPermission: "Bash", lastError: "x", turnCount: 5 } })),
+      "⚠ wants to run Bash",
+    );
+  });
+  test("error · progress · cmd · tool file, in order", () => {
+    const out = formatActivity(s({ activity: {
+      lastError: "ENOENT",
+      turnCount: 12,
+      tokens: { input: 1200, output: 800 },
+      lastCommandName: "npm",
+      lastTools: ["Read", "Edit"],
+      filesTouched: ["/a/b/foo.ts"],
+    } }));
+    assert.equal(out, "✗ ENOENT · turn 12 2k tok · $ npm · Edit foo.ts");
+  });
+  test("tokens under 1000 shown raw; only-tools / only-files handled", () => {
+    assert.equal(formatActivity(s({ activity: { turnCount: 1, tokens: { input: 300, output: 100 } } })), "turn 1 400 tok");
+    assert.equal(formatActivity(s({ activity: { lastTools: ["Grep"] } })), "Grep");
+    assert.equal(formatActivity(s({ activity: { filesTouched: ["/x/y/bar.py"] } })), "bar.py");
+  });
+});
+
 describe("rosterLabel", () => {
   test("prefers the git branch, stripping the claude/ prefix", () => {
     assert.equal(rosterLabel(s({ activity: { gitBranch: "claude/fix-sentry-build-upload" } })), "fix-sentry-build-upload");
diff --git a/src/web/agent-roster.ts b/src/web/agent-roster.ts
index 7bbc6dd..e0839fd 100644
--- a/src/web/agent-roster.ts
+++ b/src/web/agent-roster.ts
@@ -83,3 +83,52 @@ export function rosterLabel(s: RosterSession): string {
   }
   return s.project;
 }
+
+/**
+ * One-line structural summary of a session's Tier-2 activity — what it's *doing*
+ * and how far along, never conversation content: a pending-permission warning,
+ * else "✗ error · turn N · Mk tok · $ cmd · Tool file". Returns "" when there's
+ * no activity. Pure + self-contained (island injects this source; the
+ * injection-safety test guards it — no imports, no named const-arrows).
+ */
+export function formatActivity(s: RosterSession): string {
+  const a = s.activity as
+    | {
+        pendingPermission?: unknown;
+        lastError?: unknown;
+        turnCount?: unknown;
+        tokens?: { input?: unknown; output?: unknown };
+        lastCommandName?: unknown;
+        lastTools?: unknown;
+        filesTouched?: unknown;
+      }
+    | undefined;
+  if (!a || typeof a !== "object") return "";
+  if (typeof a.pendingPermission === "string" && a.pendingPermission) {
+    return "⚠ wants to run " + a.pendingPermission;
+  }
+  const bits: string[] = [];
+  if (typeof a.lastError === "string" && a.lastError) bits.push("✗ " + a.lastError);
+
+  const prog: string[] = [];
+  if (typeof a.turnCount === "number" && a.turnCount > 0) prog.push("turn " + a.turnCount);
+  if (a.tokens && typeof a.tokens === "object") {
+    const tin = typeof a.tokens.input === "number" ? a.tokens.input : 0;
+    const tout = typeof a.tokens.output === "number" ? a.tokens.output : 0;
+    const tot = tin + tout;
+    if (tot > 0) prog.push(tot >= 1000 ? Math.round(tot / 1000) + "k tok" : tot + " tok");
+  }
+  if (prog.length) bits.push(prog.join(" "));
+
+  if (typeof a.lastCommandName === "string" && a.lastCommandName) bits.push("$ " + a.lastCommandName);
+
+  const tools = Array.isArray(a.lastTools) ? (a.lastTools as unknown[]) : [];
+  const tool = tools.length ? String(tools[tools.length - 1]) : "";
+  const files = Array.isArray(a.filesTouched) ? (a.filesTouched as unknown[]) : [];
+  const file = files.length ? String(files[files.length - 1]).split("/").pop() || "" : "";
+  if (tool && file) bits.push(tool + " " + file);
+  else if (tool) bits.push(tool);
+  else if (file) bits.push(file);
+
+  return bits.join(" · ");
+}
diff --git a/src/web/island.ts b/src/web/island.ts
index 7085a4c..9477b87 100644
--- a/src/web/island.ts
+++ b/src/web/island.ts
@@ -13,7 +13,7 @@
  * so the browser runs the exact unit-tested code instead of a drifting copy.
  */
 
-import { mergeAgentSession, aggregateAgentState, rosterLabel } from "./agent-roster.js";
+import { mergeAgentSession, aggregateAgentState, rosterLabel, formatActivity } from "./agent-roster.js";
 
 export const ISLAND_HTML = `<!doctype html>
 <html lang="en">
@@ -562,7 +562,7 @@ export const ISLAND_HTML = `<!doctype html>
       <ul id="advisor-list"></ul>
     </div>
     <div id="claude-section">
-      <div class="section-label">claude code · <span id="claude-count">0</span> active</div>
+      <div class="section-label">agents · <span id="claude-count">0</span> active</div>
       <ul id="claude-list"></ul>
       <div id="notify-cta" role="button" tabindex="0">🔔 Notify me when Claude is waiting</div>
     </div>
@@ -588,6 +588,7 @@ export const ISLAND_HTML = `<!doctype html>
   ${mergeAgentSession}
   ${aggregateAgentState}
   ${rosterLabel}
+  ${formatActivity}
   // Composite identity for a roster row: the same sessionId seen under two
   // agents (e.g. a git + a shell observer) are DISTINCT rows. Mirrors the
   // key mergeAgentSession uses; the UI keys per-row history, open-state, and
@@ -884,28 +885,9 @@ export const ISLAND_HTML = `<!doctype html>
     return Math.round(ms / 3600_000) + 'h ago';
   }
 
-  // O2 — compact one-line summary of a session's Tier-2 activity. Structural
-  // only (tool names, last command, basename of a touched file). Returns ''
-  // when there's no activity (e.g. visibility=metadata).
-  function basename(p) {
-    if (!p) return '';
-    const parts = String(p).split('/');
-    return parts[parts.length - 1] || p;
-  }
-  function formatActivity(s) {
-    const a = s.activity;
-    if (!a) return '';
-    if (a.pendingPermission) return '⚠ wants to run ' + a.pendingPermission;
-    const bits = [];
-    if (a.lastError) bits.push('✗ ' + a.lastError);
-    if (a.lastCommandName) bits.push('$ ' + a.lastCommandName);
-    const tool = a.lastTools && a.lastTools.length ? a.lastTools[a.lastTools.length - 1] : '';
-    const file = a.filesTouched && a.filesTouched.length ? basename(a.filesTouched[a.filesTouched.length - 1]) : '';
-    if (tool && file) bits.push(tool + ' ' + file);
-    else if (tool) bits.push(tool);
-    else if (file) bits.push(file);
-    return bits.join(' · ');
-  }
+  // O2 — compact one-line Tier-2 activity summary is the source-injected
+  // formatActivity (from agent-roster.ts, above) — structural only, now also
+  // surfacing turn count + tokens. Shared with the GUI sidebar.
 
   function renderClaudeList() {
     const recent = recentSessions();
@@ -925,7 +907,7 @@ export const ISLAND_HTML = `<!doctype html>
       const rb = stateRank[b.state] ?? 9;
       if (ra !== rb) return ra - rb;
       return new Date(b.lastMtime).getTime() - new Date(a.lastMtime).getTime();
-    }).slice(0, 5);
+    }).slice(0, 8);
     for (const s of rows) {
       const li = document.createElement('li');
       if (rowOpen.has(agentKey(s))) li.classList.add('row-open');
diff --git a/src/web/lisa-client.ts b/src/web/lisa-client.ts
index 49a8f3c..245941e 100644
--- a/src/web/lisa-client.ts
+++ b/src/web/lisa-client.ts
@@ -1014,6 +1014,31 @@ if ('serviceWorker' in navigator) {
     sbReflectionBody.textContent = '"' + text.replace(/^["“”]+|["“”]+$/g, '').trim() + '"';
   };
 
+  // Compact one-line activity summary — mirrors agent-roster.ts formatActivity
+  // (kept inline because this client script is a no-interpolation template
+  // literal; the island uses the source-injected shared version).
+  function sbActivity(s) {
+    const a = s.activity;
+    if (!a || typeof a !== 'object') return '';
+    if (a.pendingPermission) return '⚠ wants to run ' + a.pendingPermission;
+    const bits = [];
+    if (a.lastError) bits.push('✗ ' + a.lastError);
+    const prog = [];
+    if (typeof a.turnCount === 'number' && a.turnCount > 0) prog.push('turn ' + a.turnCount);
+    if (a.tokens && (a.tokens.input || a.tokens.output)) {
+      const tot = (a.tokens.input || 0) + (a.tokens.output || 0);
+      prog.push(tot >= 1000 ? Math.round(tot / 1000) + 'k tok' : tot + ' tok');
+    }
+    if (prog.length) bits.push(prog.join(' '));
+    if (a.lastCommandName) bits.push('$ ' + a.lastCommandName);
+    const tool = a.lastTools && a.lastTools.length ? a.lastTools[a.lastTools.length - 1] : '';
+    const file = a.filesTouched && a.filesTouched.length ? (String(a.filesTouched[a.filesTouched.length - 1]).split('/').pop() || '') : '';
+    if (tool && file) bits.push(tool + ' ' + file);
+    else if (tool) bits.push(tool);
+    else if (file) bits.push(file);
+    return bits.join(' · ');
+  }
+
   function setClaudeSessions(sessions) {
     const cutoff = Date.now() - ACTIVE_WINDOW_MS;
     const recent = sessions.filter(s => new Date(s.lastMtime).getTime() >= cutoff);
@@ -1025,7 +1050,7 @@ if ('serviceWorker' in navigator) {
       const rb = rank[b.state] ?? 9;
       if (ra !== rb) return ra - rb;
       return new Date(b.lastMtime).getTime() - new Date(a.lastMtime).getTime();
-    }).slice(0, 5);
+    }).slice(0, 8);
     while (sbClaudeRows.firstChild) sbClaudeRows.removeChild(sbClaudeRows.firstChild);
     if (rows.length === 0) {
       const empty = document.createElement('div');
@@ -1066,6 +1091,15 @@ if ('serviceWorker' in navigator) {
       row.appendChild(pip);
       row.appendChild(name);
       row.appendChild(when);
+      // Second line: structural activity (turns/tokens/tool·file, ⚠pending, ✗err).
+      const actText = sbActivity(s);
+      if (actText) {
+        const act = document.createElement('div');
+        act.className = 'session-act';
+        act.textContent = actText;
+        act.title = actText;
+        row.appendChild(act);
+      }
       row.title = (s.stateReason ? s.state + ' · ' + s.stateReason : s.state) + ' · ' + s.project + ' · ' + s.sessionId;
       sbClaudeRows.appendChild(row);
     }
diff --git a/src/web/lisa-css.ts b/src/web/lisa-css.ts
index 351f9a5..f29880e 100644
--- a/src/web/lisa-css.ts
+++ b/src/web/lisa-css.ts
@@ -322,6 +322,17 @@ export const MAIN_CSS = `  :root {
     font-variant-numeric: tabular-nums;
     font-size: 10.5px;
   }
+  /* Second line under name/when: structural activity (turns/tokens/tool·file). */
+  .session-row .session-act {
+    grid-column: 2 / -1;
+    margin-top: 2px;
+    font-size: 10px;
+    color: var(--fg-3);
+    font-family: ui-monospace, "SF Mono", Menlo, monospace;
+    overflow: hidden;
+    text-overflow: ellipsis;
+    white-space: nowrap;
+  }
   .session-empty {
     color: var(--fg-faint);
     font-size: 11.5px;
diff --git a/src/web/lisa-html-snapshot.test.ts b/src/web/lisa-html-snapshot.test.ts
index 1e8ac35..28bedae 100644
--- a/src/web/lisa-html-snapshot.test.ts
+++ b/src/web/lisa-html-snapshot.test.ts
@@ -16,11 +16,11 @@ import { MAIN_HTML } from "./lisa-html.js";
  * change the GUI markup/CSS/JS, recompute them:
  *   node --import tsx -e 'import("./src/web/lisa-html.ts").then(async m=>{const {createHash}=await import("node:crypto");console.log(m.MAIN_HTML.length, createHash("sha256").update(m.MAIN_HTML).digest("hex"))})'
  *
- * Last updated: sidebar rows labelled by git branch (rosterLabel) + project in tooltip.
+ * Last updated: rich multi-agent sidebar (agents header, per-row activity line via sbActivity).
  */
-const EXPECTED_LENGTH = 77677;
+const EXPECTED_LENGTH = 79655;
 const EXPECTED_SHA256 =
-  "2c806033b5bf4ec839088a35e220d1214a2b328785f406197646042132f88195";
+  "ab91c1b4fbb085b2dbdea9c389cfd1a4780613226921ccfdf6f70d2d77d5948a";
 
 test("MAIN_HTML length is byte-identical to the pre-split snapshot", () => {
   assert.equal(MAIN_HTML.length, EXPECTED_LENGTH);
diff --git a/src/web/lisa-html.ts b/src/web/lisa-html.ts
index ecb5308..9925677 100644
--- a/src/web/lisa-html.ts
+++ b/src/web/lisa-html.ts
@@ -77,7 +77,7 @@ ${MAIN_CSS}
     <!-- Claude Code monitor -->
     <div class="card tint-claude" id="sbClaudeCard">
       <div class="h">
-        <div class="left">claude code</div>
+        <div class="left">agents</div>
         <div class="count">▶︎ <span id="sbClaudeCount">0</span></div>
       </div>
       <div id="sbClaudeRows">