diff --git a/src/components/ChatPanel.tsx b/src/components/ChatPanel.tsx
index cf97c58..f4cb4ef 100644
--- a/src/components/ChatPanel.tsx
+++ b/src/components/ChatPanel.tsx
@@ -125,7 +125,7 @@ export default function ChatPanel({ chatId }: Props) {
       <div key={msg.id} className="text-sm" style={bgStyle}>
         <div className="flex items-center gap-1 text-xs text-[var(--muted)] mb-0.5">
           <span>{AUTHOR_ICON[msg.author_type] || "👤"}</span>
-          <span className="font-medium">{msg.author_slug}</span>
+          <span className="font-medium">{msg.author?.name || msg.author?.slug || "Unknown"}</span>
           <span>·</span>
           <span>{new Date(msg.created_at).toLocaleString("ru-RU", { hour: "2-digit", minute: "2-digit" })}</span>
         </div>
diff --git a/src/components/KanbanBoard.tsx b/src/components/KanbanBoard.tsx
index 9f8eae5..bfe151c 100644
--- a/src/components/KanbanBoard.tsx
+++ b/src/components/KanbanBoard.tsx
@@ -63,7 +63,7 @@ export default function KanbanBoard({ projectId, projectSlug }: Props) {
 
     const unsubscribeAssigned = wsClient.on("task.assigned", (data: any) => {
       if (data.project_id === projectId) {
-        setTasks((prev) => prev.map((t) => t.id === data.id ? { ...t, assignee_slug: data.assignee_slug, assigned_at: data.assigned_at } : t));
+        setTasks((prev) => prev.map((t) => t.id === data.id ? { ...t, assignee_id: data.assignee_id, assignee: data.assignee, assigned_at: data.assigned_at } : t));
       }
     });
 
@@ -106,8 +106,8 @@ export default function KanbanBoard({ projectId, projectSlug }: Props) {
              style={{ background: PRIORITY_COLORS[task.priority] || "#737373" }}
              title={task.priority} />
         <span className="text-xs text-[var(--muted)]">{prefix}-{task.number}</span>
-        {task.assignee_slug && (
-          <span className="text-xs text-[var(--muted)] ml-auto">→ {task.assignee_slug}</span>
+        {task.assignee && (
+          <span className="text-xs text-[var(--muted)] ml-auto">→ {task.assignee.slug}</span>
         )}
       </div>
       <div className="text-sm ml-3.5">{task.title}</div>
diff --git a/src/components/TaskModal.tsx b/src/components/TaskModal.tsx
index d97dcf3..c815389 100644
--- a/src/components/TaskModal.tsx
+++ b/src/components/TaskModal.tsx
@@ -42,7 +42,7 @@ export default function TaskModal({ task, projectId: _projectId, projectSlug: _p
   const [description, setDescription] = useState(task.description || "");
   const [status, setStatus] = useState(task.status);
   const [priority, setPriority] = useState(task.priority);
-  const [assigneeSlug, setAssigneeSlug] = useState(task.assignee_slug || "");
+  const [assigneeId, setAssigneeId] = useState(task.assignee_id || "");
   const [members, setMembers] = useState<Member[]>([]);
   const [steps, setSteps] = useState<Step[]>(task.steps || []);
   const [comments, setComments] = useState<Message[]>([]);
@@ -307,16 +307,16 @@ export default function TaskModal({ task, projectId: _projectId, projectSlug: _p
             <div>
               <div className="text-xs text-[var(--muted)] mb-1">Исполнитель</div>
               <select
-                value={assigneeSlug}
+                value={assigneeId}
                 onChange={(e) => {
-                  setAssigneeSlug(e.target.value);
-                  save({ assignee_slug: e.target.value || undefined } as any);
+                  setAssigneeId(e.target.value);
+                  save({ assignee_id: e.target.value || undefined } as any);
                 }}
                 className="w-full bg-[var(--bg)] border border-[var(--border)] rounded px-2 py-1.5 text-sm outline-none focus:border-[var(--accent)]"
               >
                 <option value="">Не назначен</option>
                 {members.map((m) => (
-                  <option key={m.slug} value={m.slug}>
+                  <option key={m.id} value={m.id}>
                     {m.type === "agent" ? "🤖 " : "👤 "}{m.name}
                   </option>
                 ))}
diff --git a/src/lib/api.ts b/src/lib/api.ts
index b3d769b..30fd177 100644
--- a/src/lib/api.ts
+++ b/src/lib/api.ts
@@ -106,9 +106,11 @@ export interface Task {
   status: string;
   priority: string;
   labels: string[];
-  assignee_slug: string | null;
-  reviewer_slug: string | null;
-  watchers: string[];
+  assignee_id: string | null;
+  assignee: Member | null;
+  reviewer_id: string | null;
+  reviewer: Member | null;
+  watcher_ids: string[];
   depends_on: string[];
   position: number;
   time_spent: number;
@@ -128,7 +130,8 @@ export interface Message {
   task_id: string | null;
   parent_id: string | null;
   author_type: string;
-  author_slug: string;
+  author_id: string;
+  author: Member | null;
   content: string;
   mentions: string[];
   voice_url: string | null;
@@ -203,10 +206,10 @@ export async function rejectTask(taskId: string, reason: string): Promise<{ok: b
   });
 }
 
-export async function assignTask(taskId: string, assigneeSlug: string): Promise<Task> {
+export async function assignTask(taskId: string, assigneeId: string): Promise<Task> {
   return request(`/api/v1/tasks/${taskId}/assign`, { 
     method: "POST", 
-    body: JSON.stringify({ assignee_slug: assigneeSlug }) 
+    body: JSON.stringify({ assignee_id: assigneeId }) 
   });
 }