diff --git a/src/components/AgentModal.tsx b/src/components/AgentModal.tsx
index dd7c0e7..18e5148 100644
--- a/src/components/AgentModal.tsx
+++ b/src/components/AgentModal.tsx
@@ -28,7 +28,7 @@ export default function AgentModal({ agent, onClose, onUpdated }: Props) {
     setSaving(true);
     try {
       const caps = capabilities.split(",").map((c) => c.trim()).filter(Boolean);
-      const updated = await updateMember(agent.slug, {
+      const updated = await updateMember(agent.id, {
         name: name.trim(),
         agent_config: {
           capabilities: caps,
@@ -49,7 +49,7 @@ export default function AgentModal({ agent, onClose, onUpdated }: Props) {
 
   const handleRegenerate = async () => {
     try {
-      const { token } = await regenerateToken(agent.slug);
+      const { token } = await regenerateToken(agent.id);
       setCurrentToken(token);
       setConfirmRegen(false);
     } catch (e) {
@@ -59,7 +59,7 @@ export default function AgentModal({ agent, onClose, onUpdated }: Props) {
 
   const handleRevoke = async () => {
     try {
-      await revokeToken(agent.slug);
+      await revokeToken(agent.id);
       setCurrentToken(null);
       setConfirmRevoke(false);
     } catch (e) {
diff --git a/src/components/ChatPanel.tsx b/src/components/ChatPanel.tsx
index 4acc1c2..5c45679 100644
--- a/src/components/ChatPanel.tsx
+++ b/src/components/ChatPanel.tsx
@@ -22,7 +22,7 @@ interface StreamingState {
 
 interface Props {
   chatId: string;
-  projectSlug?: string;
+  projectId?: string;
 }
 
 function formatFileSize(bytes: number): string {
@@ -35,7 +35,7 @@ function isImageMime(mime: string | null): boolean {
   return !!mime && mime.startsWith("image/");
 }
 
-export default function ChatPanel({ chatId, projectSlug }: Props) {
+export default function ChatPanel({ chatId, projectId }: Props) {
   const [messages, setMessages] = useState<Message[]>([]);
   const [input, setInput] = useState("");
   const [sending, setSending] = useState(false);
@@ -399,7 +399,7 @@ export default function ChatPanel({ chatId, projectSlug }: Props) {
           {uploading ? "⏳" : "📎"}
         </button>
         <MentionInput
-          projectSlug={projectSlug || ""}
+          projectId={projectId || ""}
           value={input}
           onChange={setInput}
           onSubmit={handleSend}
diff --git a/src/components/MentionInput.tsx b/src/components/MentionInput.tsx
index 002946d..6875ed1 100644
--- a/src/components/MentionInput.tsx
+++ b/src/components/MentionInput.tsx
@@ -3,7 +3,7 @@ import type { ProjectMember } from "@/lib/api";
 import { getProjectMembers } from "@/lib/api";
 
 interface Props {
-  projectSlug: string;
+  projectId: string;
   value: string;
   onChange: (value: string) => void;
   onSubmit: () => void;
@@ -11,7 +11,7 @@ interface Props {
   disabled?: boolean;
 }
 
-export default function MentionInput({ projectSlug, value, onChange, onSubmit, placeholder, disabled }: Props) {
+export default function MentionInput({ projectId, value, onChange, onSubmit, placeholder, disabled }: Props) {
   const [members, setMembers] = useState<ProjectMember[]>([]);
   const [showDropdown, setShowDropdown] = useState(false);
   const [filter, setFilter] = useState("");
@@ -22,9 +22,9 @@ export default function MentionInput({ projectSlug, value, onChange, onSubmit, p
 
   // Load members once
   useEffect(() => {
-    if (!projectSlug) return;
-    getProjectMembers(projectSlug).then(setMembers).catch(() => {});
-  }, [projectSlug]);
+    if (!projectId) return;
+    getProjectMembers(projectId).then(setMembers).catch(() => {});
+  }, [projectId]);
 
   const filtered = members.filter((m) =>
     m.name.toLowerCase().includes(filter.toLowerCase()) ||
diff --git a/src/components/ProjectFiles.tsx b/src/components/ProjectFiles.tsx
index a827431..2b9518e 100644
--- a/src/components/ProjectFiles.tsx
+++ b/src/components/ProjectFiles.tsx
@@ -47,14 +47,14 @@ export default function ProjectFiles({ project }: Props) {
 
   const loadFiles = useCallback(async () => {
     try {
-      const data = await getProjectFiles(project.slug, search || undefined);
+      const data = await getProjectFiles(project.id, search || undefined);
       setFiles(data);
     } catch (e) {
       console.error("Failed to load files:", e);
     } finally {
       setLoading(false);
     }
-  }, [project.slug, search]);
+  }, [project.id, search]);
 
   // Debounced search
   useEffect(() => {
@@ -67,7 +67,7 @@ export default function ProjectFiles({ project }: Props) {
     setUploading(true);
     try {
       for (const file of Array.from(fileList)) {
-        await uploadProjectFile(project.slug, file, uploadDesc || undefined);
+        await uploadProjectFile(project.id, file, uploadDesc || undefined);
       }
       setUploadDesc("");
       setShowUploadDesc(false);
@@ -83,7 +83,7 @@ export default function ProjectFiles({ project }: Props) {
   const handleDelete = async (f: ProjectFile) => {
     if (!confirm(`Удалить ${f.filename}?`)) return;
     try {
-      await deleteProjectFile(project.slug, f.id);
+      await deleteProjectFile(project.id, f.id);
       setFiles((prev) => prev.filter((x) => x.id !== f.id));
     } catch (e) {
       console.error("Delete failed:", e);
@@ -92,7 +92,7 @@ export default function ProjectFiles({ project }: Props) {
 
   const handleSaveDesc = async (f: ProjectFile) => {
     try {
-      const updated = await updateProjectFile(project.slug, f.id, { description: editDesc });
+      const updated = await updateProjectFile(project.id, f.id, { description: editDesc });
       setFiles((prev) => prev.map((x) => (x.id === f.id ? updated : x)));
       setEditingId(null);
     } catch (e) {
@@ -171,7 +171,7 @@ export default function ProjectFiles({ project }: Props) {
         {!loading && files.length > 0 && (
           <div className="space-y-1">
             {files.map((f) => {
-              const url = getProjectFileUrl(project.slug, f.id);
+              const url = getProjectFileUrl(project.id, f.id);
               const isImage = f.mime_type?.startsWith("image/");
               return (
                 <div
diff --git a/src/components/ProjectSettings.tsx b/src/components/ProjectSettings.tsx
index d1eb6ff..fe08eb3 100644
--- a/src/components/ProjectSettings.tsx
+++ b/src/components/ProjectSettings.tsx
@@ -36,7 +36,7 @@ export default function ProjectSettings({ project, onUpdated }: Props) {
     const loadMembers = async () => {
       try {
         const [projectMembers, allMembersList] = await Promise.all([
-          getProjectMembers(project.slug),
+          getProjectMembers(project.id),
           getMembers()
         ]);
         setMembers(projectMembers);
@@ -58,8 +58,8 @@ export default function ProjectSettings({ project, onUpdated }: Props) {
   const handleAddMember = async () => {
     if (!selectedMember) return;
     try {
-      await addProjectMember(project.slug, selectedMember);
-      const newMember = allMembers.find((m) => m.slug === selectedMember);
+      await addProjectMember(project.id, selectedMember);
+      const newMember = allMembers.find((m) => m.id === selectedMember);
       if (newMember) {
         setMembers([...members, {
           id: newMember.id,
@@ -75,10 +75,10 @@ export default function ProjectSettings({ project, onUpdated }: Props) {
     }
   };
 
-  const handleRemoveMember = async (memberSlug: string) => {
+  const handleRemoveMember = async (memberId: string) => {
     try {
-      await removeProjectMember(project.slug, memberSlug);
-      setMembers(members.filter((m) => m.slug !== memberSlug));
+      await removeProjectMember(project.id, memberId);
+      setMembers(members.filter((m) => m.id !== memberId));
     } catch (e) {
       console.error("Failed to remove member:", e);
     }
@@ -88,7 +88,7 @@ export default function ProjectSettings({ project, onUpdated }: Props) {
     setSaving(true);
     try {
       const urls = repoUrls.split("\n").map((u) => u.trim()).filter(Boolean);
-      const updated = await updateProject(project.slug, {
+      const updated = await updateProject(project.id, {
         name: name.trim(),
         description: description.trim() || null,
         repo_urls: urls,
@@ -106,7 +106,7 @@ export default function ProjectSettings({ project, onUpdated }: Props) {
 
   const handleDelete = async () => {
     try {
-      await deleteProject(project.slug);
+      await deleteProject(project.id);
       navigate("/");
     } catch (e) {
       console.error(e);
@@ -197,7 +197,7 @@ export default function ProjectSettings({ project, onUpdated }: Props) {
                   </div>
                   {member.role !== "owner" && (
                     <button
-                      onClick={() => handleRemoveMember(member.slug)}
+                      onClick={() => handleRemoveMember(member.id)}
                       className="px-2 py-1 text-xs text-red-400 hover:bg-red-500/10 rounded"
                     >
                       Убрать
@@ -217,7 +217,7 @@ export default function ProjectSettings({ project, onUpdated }: Props) {
                 >
                   <option value="">Добавить участника...</option>
                   {availableMembers.map((member) => (
-                    <option key={member.slug} value={member.slug}>
+                    <option key={member.id} value={member.id}>
                       {member.name} ({member.slug}) - {member.type}
                     </option>
                   ))}
diff --git a/src/lib/api.ts b/src/lib/api.ts
index e27647a..93356ac 100644
--- a/src/lib/api.ts
+++ b/src/lib/api.ts
@@ -169,20 +169,20 @@ export async function getProjects(): Promise<Project[]> {
   return request("/api/v1/projects");
 }
 
-export async function getProject(slug: string): Promise<Project> {
-  return request(`/api/v1/projects/${slug}`);
+export async function getProject(projectId: string): Promise<Project> {
+  return request(`/api/v1/projects/${projectId}`);
 }
 
 export async function createProject(data: { name: string; slug: string; description?: string }): Promise<Project> {
   return request("/api/v1/projects", { method: "POST", body: JSON.stringify(data) });
 }
 
-export async function updateProject(slug: string, data: Partial<Pick<Project, "name" | "description" | "repo_urls" | "status">>): Promise<Project> {
-  return request(`/api/v1/projects/${slug}`, { method: "PATCH", body: JSON.stringify(data) });
+export async function updateProject(projectId: string, data: Partial<Pick<Project, "name" | "slug" | "description" | "repo_urls" | "status">>): Promise<Project> {
+  return request(`/api/v1/projects/${projectId}`, { method: "PATCH", body: JSON.stringify(data) });
 }
 
-export async function deleteProject(slug: string): Promise<void> {
-  await request(`/api/v1/projects/${slug}`, { method: "DELETE" });
+export async function deleteProject(projectId: string): Promise<void> {
+  await request(`/api/v1/projects/${projectId}`, { method: "DELETE" });
 }
 
 // --- Tasks ---
@@ -287,8 +287,8 @@ export async function getMembers(): Promise<Member[]> {
   return request("/api/v1/members");
 }
 
-export async function getMember(slug: string): Promise<Member> {
-  return request(`/api/v1/members/${slug}`);
+export async function getMember(memberId: string): Promise<Member> {
+  return request(`/api/v1/members/${memberId}`);
 }
 
 export async function createMember(data: {
@@ -300,21 +300,21 @@ export async function createMember(data: {
   return request("/api/v1/members", { method: "POST", body: JSON.stringify(data) });
 }
 
-export async function updateMember(slug: string, data: {
+export async function updateMember(memberId: string, data: {
   name?: string;
   role?: string;
   status?: string;
   agent_config?: Partial<AgentConfig>;
 }): Promise<Member> {
-  return request(`/api/v1/members/${slug}`, { method: "PATCH", body: JSON.stringify(data) });
+  return request(`/api/v1/members/${memberId}`, { method: "PATCH", body: JSON.stringify(data) });
 }
 
-export async function regenerateToken(slug: string): Promise<{ token: string }> {
-  return request(`/api/v1/members/${slug}/regenerate-token`, { method: "POST" });
+export async function regenerateToken(memberId: string): Promise<{ token: string }> {
+  return request(`/api/v1/members/${memberId}/regenerate-token`, { method: "POST" });
 }
 
-export async function revokeToken(slug: string): Promise<void> {
-  await request(`/api/v1/members/${slug}/revoke-token`, { method: "POST" });
+export async function revokeToken(memberId: string): Promise<void> {
+  await request(`/api/v1/members/${memberId}/revoke-token`, { method: "POST" });
 }
 
 // --- Project Files ---
@@ -330,18 +330,18 @@ export interface ProjectFile {
   updated_at: string;
 }
 
-export async function getProjectFiles(slug: string, search?: string): Promise<ProjectFile[]> {
+export async function getProjectFiles(projectId: string, search?: string): Promise<ProjectFile[]> {
   const qs = search ? `?search=${encodeURIComponent(search)}` : "";
-  return request(`/api/v1/projects/${slug}/files${qs}`);
+  return request(`/api/v1/projects/${projectId}/files${qs}`);
 }
 
-export async function uploadProjectFile(slug: string, file: File, description?: string): Promise<ProjectFile> {
+export async function uploadProjectFile(projectId: string, file: File, description?: string): Promise<ProjectFile> {
   const token = getToken();
   const formData = new FormData();
   formData.append("file", file);
   if (description) formData.append("description", description);
 
-  const res = await fetch(`${API_BASE}/api/v1/projects/${slug}/files`, {
+  const res = await fetch(`${API_BASE}/api/v1/projects/${projectId}/files`, {
     method: "POST",
     headers: token ? { Authorization: `Bearer ${token}` } : {},
     body: formData,
@@ -358,18 +358,18 @@ export async function uploadProjectFile(slug: string, file: File, description?:
   return res.json();
 }
 
-export function getProjectFileUrl(slug: string, fileId: string): string {
+export function getProjectFileUrl(projectId: string, fileId: string): string {
   const token = getToken();
   const qs = token ? `?token=${encodeURIComponent(token)}` : "";
-  return `${API_BASE}/api/v1/projects/${slug}/files/${fileId}/download${qs}`;
+  return `${API_BASE}/api/v1/projects/${projectId}/files/${fileId}/download${qs}`;
 }
 
-export async function updateProjectFile(slug: string, fileId: string, data: { description?: string }): Promise<ProjectFile> {
-  return request(`/api/v1/projects/${slug}/files/${fileId}`, { method: "PATCH", body: JSON.stringify(data) });
+export async function updateProjectFile(projectId: string, fileId: string, data: { description?: string }): Promise<ProjectFile> {
+  return request(`/api/v1/projects/${projectId}/files/${fileId}`, { method: "PATCH", body: JSON.stringify(data) });
 }
 
-export async function deleteProjectFile(slug: string, fileId: string): Promise<void> {
-  await request(`/api/v1/projects/${slug}/files/${fileId}`, { method: "DELETE" });
+export async function deleteProjectFile(projectId: string, fileId: string): Promise<void> {
+  await request(`/api/v1/projects/${projectId}/files/${fileId}`, { method: "DELETE" });
 }
 
 // --- Chat File Upload ---
@@ -412,17 +412,17 @@ export function getAttachmentUrl(attachmentId: string): string {
 
 // --- Project Members ---
 
-export async function getProjectMembers(slug: string): Promise<ProjectMember[]> {
-  return request(`/api/v1/projects/${slug}/members`);
+export async function getProjectMembers(projectId: string): Promise<ProjectMember[]> {
+  return request(`/api/v1/projects/${projectId}/members`);
 }
 
-export async function addProjectMember(slug: string, memberSlug: string): Promise<{ ok: boolean }> {
-  return request(`/api/v1/projects/${slug}/members`, {
+export async function addProjectMember(projectId: string, memberId: string): Promise<{ ok: boolean }> {
+  return request(`/api/v1/projects/${projectId}/members`, {
     method: "POST",
-    body: JSON.stringify({ slug: memberSlug })
+    body: JSON.stringify({ member_id: memberId })
   });
 }
 
-export async function removeProjectMember(slug: string, memberSlug: string): Promise<{ ok: boolean }> {
-  return request(`/api/v1/projects/${slug}/members/${memberSlug}`, { method: "DELETE" });
+export async function removeProjectMember(projectId: string, memberId: string): Promise<{ ok: boolean }> {
+  return request(`/api/v1/projects/${projectId}/members/${memberId}`, { method: "DELETE" });
 }
\ No newline at end of file
diff --git a/src/pages/ProjectPage.tsx b/src/pages/ProjectPage.tsx
index 0e87c77..744747e 100644
--- a/src/pages/ProjectPage.tsx
+++ b/src/pages/ProjectPage.tsx
@@ -101,7 +101,7 @@ export default function ProjectPage() {
             <KanbanBoard projectId={project.id} projectSlug={project.slug} />
           )}
           {activeTab === "chat" && project.chat_id && (
-            <ChatPanel chatId={project.chat_id} projectSlug={project.slug} />
+            <ChatPanel chatId={project.chat_id} projectId={project.id} />
           )}
           {activeTab === "chat" && !project.chat_id && (
             <div className="flex items-center justify-center h-full text-[var(--muted)] text-sm">