fix(a2a): CEO pairs join the switchboard matrix; sections collapsible

_SWITCHBOARD_SLUGS reused is_human_only_role (spawn semantics) and dropped
the CEO before can_a2a_direct — which allows CEO -> anyone — ever ran, so
the static pair matrix had no CEO pairs and a Renzo filter emptied the
switchboard. Only prompter/secretary/system are excluded now; CEO pairs
get their own 'CEO Direct' section (matrix 70 -> 93). Every switchboard
section header is now a collapse toggle (Radix Collapsible, default open).

panel/src/components/a2a/__tests__/a2a-switchboard.test.tsx

@@ -117,6 +117,23 @@ describe("A2ASwitchboard", () => {
     );
   });
 
+  it("collapses and re-expands a section when its header is clicked", () => {
+    render(
+      <A2ASwitchboard
+        pairs={[buildPair()]}
+        pulses={{}}
+        selectedConversationId={null}
+        isLoading={false}
+        onOpenPair={vi.fn()}
+      />,
+    );
+    expect(screen.getByTestId("pair-card")).toBeInTheDocument();
+    fireEvent.click(screen.getByRole("button", { name: /Backend Cell/ }));
+    expect(screen.queryByTestId("pair-card")).not.toBeInTheDocument();
+    fireEvent.click(screen.getByRole("button", { name: /Backend Cell/ }));
+    expect(screen.getByTestId("pair-card")).toBeInTheDocument();
+  });
+
   it("passes each pair's pulse timestamp through by canonical pair key", () => {
     const pair = buildPair();
     render(

panel/src/components/a2a/a2a-switchboard-utils.ts

@@ -66,9 +66,10 @@ export function latestPulseTimestamps(
   return out;
 }
 
-/** Stable section ordering — cells first (org-chart top-down), then the PM
+/** Stable section ordering — the CEO's own 1:1 reach first, then cells
- * chain, board, and finally the lateral catch-all. */
+ * (org-chart top-down), the PM chain, board, and the lateral catch-all. */
 export const SECTION_ORDER = [
+  "ceo",
   "cell-backend",
   "cell-frontend",
   "cell-ux_ui",
@@ -78,6 +79,7 @@ export const SECTION_ORDER = [
 ] as const;
 
 export const SECTION_LABELS: Record<string, string> = {
+  ceo: "CEO Direct",
   "cell-backend": "Backend Cell",
   "cell-frontend": "Frontend Cell",
   "cell-ux_ui": "UX/UI Cell",

panel/src/components/a2a/a2a-switchboard.tsx

@@ -1,6 +1,12 @@
 "use client";
 
-import { Radio } from "lucide-react";
+import { useState } from "react";
+import { ChevronDown, ChevronRight, Radio } from "lucide-react";
+import {
+  Collapsible,
+  CollapsibleContent,
+  CollapsibleTrigger,
+} from "@/components/ui/collapsible";
 import { Skeleton } from "@/components/ui/skeleton";
 import { HelpTip } from "@/components/ui/help-tip";
 import type { AdminPairSummary } from "@/lib/api/a2a";
@@ -20,8 +26,9 @@ const SKELETON_COUNT = 9;
 
 /**
  * The org-chart switchboard: every allowed agent pair as a card, grouped
- * into sections (each cell, the PM chain, board, cross-team) and sorted so
+ * into collapsible sections (CEO direct, each cell, the PM chain, board,
- * pairs with history come first within their section.
+ * cross-team) and sorted so pairs with history come first within their
+ * section.
  */
 export function A2ASwitchboard({
   pairs,
@@ -30,6 +37,9 @@ export function A2ASwitchboard({
   isLoading,
   onOpenPair,
 }: A2ASwitchboardProps) {
+  // Sections start expanded; collapsed state is per-groupKey, session-local.
+  const [collapsed, setCollapsed] = useState<Record<string, boolean>>({});
+
   if (isLoading) {
     return (
       <div className="p-2 grid grid-cols-1 sm:grid-cols-2 gap-2">
@@ -55,16 +65,41 @@ export function A2ASwitchboard({
 
   return (
     <div className="h-full overflow-y-auto p-2 space-y-4">
-      {sections.map((section) => (
+      {sections.map((section) => {
-        <div key={section.groupKey}>
+        const isOpen = !collapsed[section.groupKey];
-          <HelpTip label="Pairs with prior conversation history are listed first">
+        return (
-            <h3 className="text-xs font-semibold uppercase tracking-wide text-muted-foreground mb-2 px-1 w-fit">
+          <Collapsible
+            key={section.groupKey}
+            open={isOpen}
+            onOpenChange={(open) =>
+              setCollapsed((prev) => ({ ...prev, [section.groupKey]: !open }))
+            }
+          >
+            <CollapsibleTrigger asChild>
+              <button
+                type="button"
+                className="flex items-center gap-1 mb-2 px-1 w-fit text-xs font-semibold uppercase tracking-wide text-muted-foreground hover:text-foreground transition-colors"
+              >
+                {/* Tip goes on the inner span, not the CollapsibleTrigger
+                    asChild button — wrapping the trigger itself would clobber
+                    its open/closed data-state (same trap as Switch/
+                    TabsTrigger). */}
+                {isOpen ? (
+                  <ChevronDown className="h-3.5 w-3.5" />
+                ) : (
+                  <ChevronRight className="h-3.5 w-3.5" />
+                )}
+                <HelpTip label="Pairs with prior conversation history are listed first — click to collapse or expand this section">
+                  <span>
                     {section.label}
                     <span className="ml-1.5 text-muted-foreground/60 normal-case">
                       ({section.pairs.length})
                     </span>
-            </h3>
+                  </span>
                 </HelpTip>
+              </button>
+            </CollapsibleTrigger>
+            <CollapsibleContent>
               <div className="grid grid-cols-1 sm:grid-cols-2 gap-2">
                 {section.pairs.map((pair) => {
                   const key = pairKey(pair.agent_a, pair.agent_b);
@@ -82,8 +117,10 @@ export function A2ASwitchboard({
                   );
                 })}
               </div>
-        </div>
+            </CollapsibleContent>
-      ))}
+          </Collapsible>
+        );
+      })}
     </div>
   );
 }

roboco/agents_config.py

@@ -731,7 +731,8 @@ def get_a2a_route_hint(from_agent: str, to_agent: str) -> str:
 # A2A SWITCHBOARD — ALLOWED AGENT PAIRS (CEO admin view)
 # =============================================================================
 # Static, stateless derivation from can_a2a_direct(): every unordered pair of
-# real (non-human, non-sentinel) agents where at least one direction is
+# A2A participants (agents plus the CEO's asymmetric panel reach; never the
+# sentinel or the prompter/secretary) where at least one direction is
 # permitted. This is the org-chart the CEO's A2A switchboard renders as pair
 # cards — computed once at import time, since the matrix never changes at
 # runtime. The route/service layer joins this list against live DB
@@ -756,12 +757,14 @@ class A2AAllowedPair:
 
 
 # Slugs eligible for the switchboard: excludes the system sentinel and the
-# human-only roles (CEO, prompter, secretary) — none of those are real A2A
+# non-participant human roles (prompter, secretary). The CEO stays in — it is
-# participants in the org chart the CEO is browsing.
+# a real, asymmetric A2A participant (can_a2a_direct allows CEO → anyone via
+# the panel's 1:1 DM flow), so its pairs must render on the switchboard.
 _SWITCHBOARD_SLUGS: Final[list[str]] = sorted(
     slug
     for slug, row in _foundation.AGENTS.items()
-    if slug != "system" and not _foundation.is_human_only_role(row.role)
+    if slug != "system"
+    and row.role not in (_foundation.Role.PROMPTER, _foundation.Role.SECRETARY)
 )
 
 _BOARD_ROLE_VALUES: Final[frozenset[str]] = frozenset(
@@ -782,11 +785,14 @@ def _a2a_group_key(role_a: str, team_a: str, role_b: str, team_b: str) -> str:
       -> board).
     - ``board``: pure board-to-board pairs (product_owner/head_marketing/
       auditor).
+    - ``ceo``: the CEO's asymmetric 1:1 reach into any agent (panel DMs).
     - ``cross``: everything else — chiefly a PR reviewer's lateral reach
       outside its own cell/pm (delivering a gate verdict to another cell's
       PM or to main-pm), which isn't part of the escalation spine.
     """
     roles = {role_a, role_b}
+    if "ceo" in roles:
+        return "ceo"
     if team_a == team_b and team_a in _CELL_TEAM_VALUES:
         return f"cell-{team_a}"
     if roles == {"cell_pm", "main_pm"}:

tests/unit/test_agents_config.py

@@ -539,9 +539,10 @@ def test_get_a2a_route_hint_unknown_from_agent_falls_through() -> None:
 # A2A_ALLOWED_PAIRS — the switchboard's static org-chart pair matrix
 # ---------------------------------------------------------------------------
 
-_EXPECTED_PAIR_COUNT = 70
+_EXPECTED_PAIR_COUNT = 93
 _EXPECTED_GROUP_COUNTS = {
     "board": 3,
+    "ceo": 23,
     "cell-backend": 15,
     "cell-frontend": 15,
     "cell-ux_ui": 15,
@@ -566,14 +567,27 @@ def test_a2a_allowed_pairs_no_duplicates() -> None:
     assert len(keys) == len(set(keys))
 
 
-def test_a2a_allowed_pairs_excludes_human_only_and_sentinel_roles() -> None:
+def test_a2a_allowed_pairs_excludes_non_participants_keeps_ceo() -> None:
-    """CEO, the intake interviewer, the secretary, and the system sentinel
+    """The intake interviewer, the secretary, and the system sentinel are not
-    are not real A2A participants in the org chart."""
+    A2A participants — but the CEO is (asymmetric panel DMs), so its pairs
+    must be in the matrix."""
     slugs = {p.agent_a for p in A2A_ALLOWED_PAIRS} | {
         p.agent_b for p in A2A_ALLOWED_PAIRS
     }
-    for excluded in ("ceo", "intake-1", "secretary-1", "system"):
+    for excluded in ("intake-1", "secretary-1", "system"):
         assert excluded not in slugs
+    assert "ceo" in slugs
+
+
+def test_a2a_allowed_pairs_ceo_paired_with_every_agent() -> None:
+    """CEO → anyone is always allowed, so every non-CEO switchboard slug
+    appears in exactly one ``ceo``-group pair."""
+    ceo_pairs = [p for p in A2A_ALLOWED_PAIRS if "ceo" in (p.agent_a, p.agent_b)]
+    non_ceo_slugs = (
+        {p.agent_a for p in A2A_ALLOWED_PAIRS} | {p.agent_b for p in A2A_ALLOWED_PAIRS}
+    ) - {"ceo"}
+    assert all(p.group_key == "ceo" for p in ceo_pairs)
+    assert len(ceo_pairs) == len(non_ceo_slugs)
 
 
 def test_a2a_allowed_pairs_group_key_counts() -> None: