#185: count herdr owners for stop fallback

fleetd/src/main/java/dev/ltms/fleet/herdr/AgentControl.java

@@ -38,6 +38,11 @@ public final class AgentControl {
         this.herdr = herdr;
     }
 
+    /** The herdr daemon this control object sends its agent calls to. */
+    public HerdrClient herdr() {
+        return herdr;
+    }
+
     /** One agent-targeted call, translating a terminal id to its pane id (retrying once fresh). */
     private JsonNode agentCall(String method, String target, Map<String, Object> extra) {
         String resolved = resolveTarget(target);

fleetd/src/main/java/dev/ltms/fleet/member/CompositePeerLauncher.java

@@ -2,6 +2,7 @@ package dev.ltms.fleet.member;
 
 import dev.ltms.fleet.config.FleetConfig;
 import dev.ltms.fleet.herdr.Agent;
+import dev.ltms.fleet.herdr.HerdrClient;
 import dev.ltms.fleet.peer.Capability;
 import dev.ltms.fleet.peer.MemberRole;
 import dev.ltms.fleet.peer.PeerHandle;
@@ -21,6 +22,7 @@ import java.util.ArrayList;
 import java.util.Collections;
 import java.util.EnumSet;
 import java.util.HashSet;
+import java.util.IdentityHashMap;
 import java.util.LinkedHashMap;
 import java.util.List;
 import java.util.Map;
@@ -44,8 +46,8 @@ import java.util.stream.Collectors;
  *       the single adapter that declares it. Profiles partition cleanly across adapters: the
  *       constructor rejects a name claimed by two.</li>
  *   <li><strong>By pane id</strong> — {@link #stop} routes to the adapter that spawned that pane
- *       (recorded at spawn time). A pane the composite never spawned can use the single delegate
- *       in a one-daemon fleet. With more than one delegate, its owner is unknown, so stop refuses
+ *       (recorded at spawn time). A pane the composite never spawned can use the fallback route
+ *       in a one-daemon fleet. With more than one herdr daemon, its owner is unknown, so stop refuses
  *       the ambiguous id rather than closing a pane on an arbitrary herdr daemon.</li>
  *   <li><strong>Fleet-wide</strong> — {@link #reapOrphanWorkers} and {@link #capabilities} fan out
  *       and combine. {@link #list} is deduplicated by pane id because every herdr-backed delegate
@@ -437,7 +439,7 @@ public final class CompositePeerLauncher implements PeerLauncher {
     public void stop(String id) {
         HerdrPeerLauncher d = spawnedBy.remove(id);
         if (d == null) {
-            if (delegates.size() != 1) {
+            if (herdrDaemonCount() != 1) {
                 throw new IllegalArgumentException("ambiguous paneId '" + id
                         + "': no owning herdr daemon was recorded");
             }
@@ -447,6 +449,18 @@ public final class CompositePeerLauncher implements PeerLauncher {
         d.stop(id);
     }
 
+    /**
+     * Count actual herdr daemons, not peer adapter kinds. Identity is intentional: separate client
+     * objects may represent different daemons even if a client later implements value equality.
+     */
+    private int herdrDaemonCount() {
+        Set<HerdrClient> daemons = java.util.Collections.newSetFromMap(new IdentityHashMap<>());
+        for (HerdrPeerLauncher delegate : delegates) {
+            daemons.add(delegate.herdr());
+        }
+        return daemons.size();
+    }
+
     @Override
     public boolean clearContext(String id) {
         HerdrPeerLauncher delegate = spawnedBy.get(id);

fleetd/src/main/java/dev/ltms/fleet/member/HerdrPeerLauncher.java

@@ -3,6 +3,7 @@ package dev.ltms.fleet.member;
 import dev.ltms.fleet.config.FleetConfig;
 import dev.ltms.fleet.herdr.Agent;
 import dev.ltms.fleet.herdr.AgentControl;
+import dev.ltms.fleet.herdr.HerdrClient;
 import dev.ltms.fleet.herdr.HerdrException;
 import dev.ltms.fleet.herdr.Tab;
 import dev.ltms.fleet.herdr.Workspace;
@@ -520,6 +521,11 @@ public abstract class HerdrPeerLauncher implements PeerLauncher {
                 req.sessionName(), spawned.agentSessionId(), spawned.receipt());
     }
 
+    /** The herdr daemon that owns this launcher's pane coordinates. */
+    public HerdrClient herdr() {
+        return agents.herdr();
+    }
+
     @Override
     public String effectiveCwd(SpawnRequest req) {
         return effectiveCwd(req.profileName(), req.requestedCwd(), req.callerCwd());

fleetd/src/test/java/dev/ltms/fleet/member/CompositePeerLauncherTest.java

@@ -285,6 +285,18 @@ class CompositePeerLauncherTest {
                 "one daemon keeps the legacy bare-pane routing behaviour");
     }
 
+    @Test
+    void stopAllowsAnUnownedPaneIdWithTwoAdaptersSharingOneDaemon() {
+        FakeHerdr herdr = new FakeHerdr();
+        PeerLauncher composite = composite(herdr);
+
+        composite.stop("w9:pRoot_1");
+
+        assertTrue(herdr.calls.stream().anyMatch(c -> c.method().equals("pane.close")
+                        && "w9:pRoot_1".equals(((Map<?, ?>) c.params()).get("pane_id"))),
+                "two adapter kinds sharing one daemon keep the fallback route");
+    }
+
     @Test
     void stopRejectsAnUnownedPaneIdWhenMultipleDaemonsCouldOwnIt() {
         PeerLauncher composite = new CompositePeerLauncher(