diff --git a/src/lib/api.ts b/src/lib/api.ts
index b3a995f..b2bcfc9 100644
--- a/src/lib/api.ts
+++ b/src/lib/api.ts
@@ -133,6 +133,11 @@ export const getContacts = (id: string) =>
 export const upsertContact = (id: string, b: Partial<ClientContact>) =>
   api.post<ClientContact>(`/projects/${id}/contacts`, b).then((r) => r.data);
 export const deleteContact = (cId: string) => api.delete(`/contacts/${cId}`).then((r) => r.data);
+// 비민감 정보(주의사항·계약범위)는 프로젝트 구성원 누구나 편집
+export const patchProjectNotes = (
+  id: string,
+  b: { cautions?: string; scopeText?: string; scopeGraphic?: string }
+) => api.patch<Project>(`/projects/${id}/notes`, b).then((r) => r.data);
 
 export const getTasks = (id: string) =>
   api.get<ProjectTask[]>(`/projects/${id}/tasks`).then((r) => r.data);
diff --git a/src/pages/ProjectDetail.tsx b/src/pages/ProjectDetail.tsx
index 22a9233..a0176f4 100644
--- a/src/pages/ProjectDetail.tsx
+++ b/src/pages/ProjectDetail.tsx
@@ -10,7 +10,7 @@ import {
   getPayments, upsertProjectMember, deleteProjectMember, createTask, updateTask, deleteTask,
   getTaskComments, createTaskComment, deleteTaskComment,
   getProjectMails, putMailNote, syncProjectMails, hideMail,
-  upsertContact, deleteContact, putContract, uploadContractFile, getFileDownloadUrl,
+  upsertContact, deleteContact, patchProjectNotes, putContract, uploadContractFile, getFileDownloadUrl,
   deleteContractFile, createPayment, updatePayment, deletePayment, recomputeProject,
   updateProject,
 } from "@/lib/api";
@@ -67,7 +67,7 @@ export function ProjectDetailPage() {
           {tab === "members" && <Members projectId={id} isAdmin={isAdmin} />}
           {tab === "timeline" && <Timeline projectId={id} isAdmin={isAdmin} />}
           {tab === "mail" && <MailTab projectId={id} />}
-          {tab === "contacts" && <Contacts projectId={id} isAdmin={isAdmin} />}
+          {tab === "contacts" && <Contacts projectId={id} />}
           {tab === "contract" && isAdmin && <ContractTab projectId={id} />}
         </div>
       </Card>
@@ -86,20 +86,35 @@ function Row({ label, value }: { label: string; value: React.ReactNode }) {
 
 function Overview({ project: p }: { project: Project }) {
   const { nameOf } = useDirectory();
+  const qc = useQueryClient();
+  const [cautions, setCautions] = useState(p.cautions);
+  useEffect(() => { setCautions(p.cautions); }, [p.id]);
+  const saveCautions = useMutation({
+    mutationFn: () => patchProjectNotes(p.id, { cautions }),
+    onSuccess: () => qc.invalidateQueries({ queryKey: ["project", p.id] }),
+  });
   return (
-    <div className="grid grid-cols-1 lg:grid-cols-2 gap-x-10">
-      <div>
-        <Row label="컨설팅 종류" value={p.consultingType} />
-        <Row label="제출 국가" value={p.country} />
-        <Row label="계약 범위(글)" value={p.scopeText} />
-        <Row label="계약 범위(그림)" value={p.scopeGraphic} />
-        <Row label="PM" value={p.pmEmail ? nameOf(p.pmEmail) : ""} />
+    <div>
+      <div className="grid grid-cols-1 lg:grid-cols-2 gap-x-10">
+        <div>
+          <Row label="컨설팅 종류" value={p.consultingType} />
+          <Row label="제출 국가" value={p.country} />
+          <Row label="계약 범위(글)" value={p.scopeText} />
+          <Row label="계약 범위(그림)" value={p.scopeGraphic} />
+          <Row label="PM" value={p.pmEmail ? nameOf(p.pmEmail) : ""} />
+        </div>
+        <div>
+          <Row label="업체 / 제품" value={`${p.companyName} · ${p.productName}`} />
+          <Row label="버전" value={p.versionName} />
+          <Row label="기간" value={`${formatDate(p.startDate)} ~ ${formatDate(p.dueDate)}`} />
+        </div>
       </div>
-      <div>
-        <Row label="업체 / 제품" value={`${p.companyName} · ${p.productName}`} />
-        <Row label="버전" value={p.versionName} />
-        <Row label="기간" value={`${formatDate(p.startDate)} ~ ${formatDate(p.dueDate)}`} />
-        <Row label="주의사항" value={p.cautions} />
+      {/* 주의사항: 프로젝트 구성원 누구나 편집 (비민감 정보) */}
+      <div className="mt-5">
+        <span className="form-label">주의사항 <span className="text-ink-muted font-normal">· 구성원 누구나 편집</span></span>
+        <Textarea value={cautions} onChange={(e) => setCautions(e.target.value)}
+          onBlur={() => { if (cautions !== p.cautions) saveCautions.mutate(); }}
+          placeholder="프로젝트 진행 시 주의할 점·공유사항을 적어주세요." style={{ minHeight: 88 }} />
       </div>
     </div>
   );
@@ -338,7 +353,7 @@ function TaskDetailModal({ projectId, task, isAdmin, onClose }: { projectId: str
         <span className="text-ink-muted font-normal">작업 상세</span>
       </span>}
       footer={<>
-        {isAdmin && <Button variant="danger" onClick={() => { if (confirm("이 작업을 삭제하시겠습니까?")) del.mutate(); }} className="mr-auto">삭제</Button>}
+        <Button variant="danger" onClick={() => { if (confirm("이 작업을 삭제하시겠습니까?")) del.mutate(); }} className="mr-auto">삭제</Button>
         <Button variant="secondary" onClick={onClose}>닫기</Button>
       </>}>
       <div className="grid grid-cols-1 lg:grid-cols-3 gap-5">
@@ -441,8 +456,8 @@ function Prop({ label, children }: { label: string; children: React.ReactNode })
   );
 }
 
-/* ---- contacts ---- */
-function Contacts({ projectId, isAdmin }: { projectId: string; isAdmin: boolean }) {
+/* ---- contacts (업체 담당자 — 프로젝트 구성원 누구나 CRUD) ---- */
+function Contacts({ projectId }: { projectId: string }) {
   const qc = useQueryClient();
   const q = useQuery({ queryKey: ["contacts", projectId], queryFn: () => getContacts(projectId) });
   const empty = { id: "", name: "", title: "", phone: "", email: "" };
@@ -456,28 +471,26 @@ function Contacts({ projectId, isAdmin }: { projectId: string; isAdmin: boolean
   return (
     <div>
       <table className="dense-table">
-        <thead><tr><th>이름</th><th>직무</th><th>연락처</th><th>이메일</th>{isAdmin && <th></th>}</tr></thead>
+        <thead><tr><th>이름</th><th>직무</th><th>연락처</th><th>이메일</th><th></th></tr></thead>
         <tbody>
           {(q.data ?? []).map((c) => (
             <tr key={c.id}><td>{c.name}</td><td>{c.title}</td><td className="tabular">{c.phone}</td><td>{c.email}</td>
-              {isAdmin && <td className="text-right whitespace-nowrap">
+              <td className="text-right whitespace-nowrap">
                 <button className="text-ink-muted hover:text-ink mr-2" onClick={() => setForm({ id: c.id, name: c.name, title: c.title, phone: c.phone, email: c.email })}><Pencil size={15} /></button>
                 <button className="text-ink-muted hover:text-money-out" onClick={() => del.mutate(c.id)}><Trash2 size={15} /></button>
-              </td>}</tr>
+              </td></tr>
           ))}
           {(q.data?.length ?? 0) === 0 && <tr><td colSpan={5} className="text-center text-ink-muted py-6">담당자가 없습니다</td></tr>}
         </tbody>
       </table>
-      {isAdmin && (
-        <div className="flex flex-wrap items-end gap-2 mt-4 p-3 bg-canvas rounded-control">
-          <Field label="이름"><Input value={form.name} onChange={(e) => setForm({ ...form, name: e.target.value })} className="w-32" /></Field>
-          <Field label="직무"><Input value={form.title} onChange={(e) => setForm({ ...form, title: e.target.value })} className="w-32" /></Field>
-          <Field label="연락처"><Input value={form.phone} onChange={(e) => setForm({ ...form, phone: e.target.value })} className="w-36" /></Field>
-          <Field label="이메일"><Input value={form.email} onChange={(e) => setForm({ ...form, email: e.target.value })} className="w-44" /></Field>
-          <Button icon={form.id ? undefined : <Plus size={15} />} disabled={!form.name || save.isPending} onClick={() => save.mutate()}>{form.id ? "수정" : "추가"}</Button>
-          {form.id && <Button variant="ghost" onClick={() => setForm(empty)}>취소</Button>}
-        </div>
-      )}
+      <div className="flex flex-wrap items-end gap-2 mt-4 p-3 bg-canvas rounded-control">
+        <Field label="이름"><Input value={form.name} onChange={(e) => setForm({ ...form, name: e.target.value })} className="w-32" /></Field>
+        <Field label="직무"><Input value={form.title} onChange={(e) => setForm({ ...form, title: e.target.value })} className="w-32" /></Field>
+        <Field label="연락처"><Input value={form.phone} onChange={(e) => setForm({ ...form, phone: e.target.value })} className="w-36" /></Field>
+        <Field label="이메일"><Input value={form.email} onChange={(e) => setForm({ ...form, email: e.target.value })} className="w-44" /></Field>
+        <Button icon={form.id ? undefined : <Plus size={15} />} disabled={!form.name || save.isPending} onClick={() => save.mutate()}>{form.id ? "수정" : "추가"}</Button>
+        {form.id && <Button variant="ghost" onClick={() => setForm(empty)}>취소</Button>}
+      </div>
     </div>
   );
 }