fix broadcast send for manager, deduplicate into coordinator.broadcast_send

hive-c0re/src/agent_server.rs

@@ -104,21 +104,7 @@ async fn dispatch(req: &AgentRequest, agent: &str, coord: &Arc<Coordinator>) ->
         AgentRequest::Send { to, body } => {
             // Handle broadcast sends (recipient = "*")
             if to == "*" {
-                let agents = coord.list_agents();
-                let broadcast_hint = "\n\n⚠️ _hint: this was a broadcast and may not need any action from you_";
-                let broadcast_body = format!("{}{}", body, broadcast_hint);
-                let mut errors = Vec::new();
-
-                for agent_name in agents {
-                    if let Err(e) = broker.send(&Message {
-                        from: agent.to_owned(),
-                        to: agent_name.clone(),
-                        body: broadcast_body.clone(),
-                    }) {
-                        errors.push(format!("{}: {e}", agent_name));
-                    }
-                }
-
+                let errors = coord.broadcast_send(agent, body);
                 if errors.is_empty() {
                     AgentResponse::Ok
                 } else {

hive-c0re/src/coordinator.rs

@@ -192,6 +192,27 @@ impl Coordinator {
         }
     }
 
+    /// Deliver `body` to every currently-registered agent, appending the
+    /// standard broadcast hint. Returns a list of per-agent error strings
+    /// for any that failed (empty = all ok). The sender's own inbox is
+    /// included — the hint text tells agents to ignore if no action needed.
+    pub fn broadcast_send(&self, from: &str, body: &str) -> Vec<String> {
+        const HINT: &str =
+            "\n\n⚠️ _hint: this was a broadcast and may not need any action from you_";
+        let broadcast_body = format!("{body}{HINT}");
+        let mut errors = Vec::new();
+        for agent_name in self.list_agents() {
+            if let Err(e) = self.broker.send(&hive_sh4re::Message {
+                from: from.to_owned(),
+                to: agent_name.clone(),
+                body: broadcast_body.clone(),
+            }) {
+                errors.push(format!("{agent_name}: {e}"));
+            }
+        }
+        errors
+    }
+
     pub fn agent_dir(name: &str) -> PathBuf {
         PathBuf::from(format!("{AGENT_RUNTIME_ROOT}/{name}"))
     }

hive-c0re/src/manager_server.rs

@@ -85,7 +85,18 @@ fn manager_recv_timeout(wait_seconds: Option<u64>) -> std::time::Duration {
 #[allow(clippy::too_many_lines)]
 async fn dispatch(req: &ManagerRequest, coord: &Arc<Coordinator>) -> ManagerResponse {
     match req {
-        ManagerRequest::Send { to, body } => match coord.broker.send(&Message {
+        ManagerRequest::Send { to, body } => {
+            if to == "*" {
+                let errors = coord.broadcast_send(MANAGER_AGENT, body);
+                if errors.is_empty() {
+                    ManagerResponse::Ok
+                } else {
+                    ManagerResponse::Err {
+                        message: format!("broadcast failed for agents: {}", errors.join(", ")),
+                    }
+                }
+            } else {
+                match coord.broker.send(&Message {
                     from: MANAGER_AGENT.to_owned(),
                     to: to.clone(),
                     body: body.clone(),
@@ -94,7 +105,9 @@ async fn dispatch(req: &ManagerRequest, coord: &Arc<Coordinator>) -> ManagerResp
                     Err(e) => ManagerResponse::Err {
                         message: format!("{e:#}"),
                     },
-        },
+                }
+            }
+        }
         ManagerRequest::OperatorMsg { body } => match coord.broker.send(&Message {
             from: hive_sh4re::OPERATOR_RECIPIENT.to_owned(),
             to: MANAGER_AGENT.to_owned(),