diff --git a/web/static/i18n/en-US.json b/web/static/i18n/en-US.json
index de87956f..1eb71442 100644
--- a/web/static/i18n/en-US.json
+++ b/web/static/i18n/en-US.json
@@ -366,7 +366,7 @@
     "projectName": "Project name",
     "projectNamePlaceholder": "e.g. Client A Web pentest",
     "projectDescription": "Project description",
-    "projectDescriptionPlaceholder": "Scope, authorization boundary, notes…",
+    "projectDescriptionPlaceholder": "Client/task notes, team collaboration…",
     "createProject": "Create project",
     "newProject": "New project",
     "chatSelectorButton": "Share fact board across chats after binding a project",
@@ -403,7 +403,7 @@
     "updatedPrefix": "Updated {{time}}",
     "descExpand": "Show all",
     "descCollapse": "Show less",
-    "descriptionLengthHint": "Keep it brief (max 4000 chars). Put long logs/POCs in fact board body instead.",
+    "descriptionLengthHint": "For team reference only — the Agent does not read this. Keep it brief (max 4000 chars). Put anything the Agent should know in the fact board.",
     "noMatchingFacts": "No matching facts, try adjusting filters",
     "noFacts": "No facts yet. Click Add fact or let Agent write facts automatically",
     "relatedVulnIdTitle": "Related vulnerability ID",
@@ -477,7 +477,7 @@
     "settingsIntroHint": "Configure project metadata and Agent authorization boundary; takes effect immediately for bound conversations after saving.",
     "pinProject": "Pin project (show first in list)",
     "pinFact": "Pin fact (prioritize in list and blackboard index)",
-    "editDescriptionPlaceholder": "Targets, authorization scope, contacts, notes…",
+    "editDescriptionPlaceholder": "Client/task notes, contacts, collaboration…",
     "scopeTitle": "Test scope",
     "scopeHint": "JSON format for Agent authorization boundary and target assets",
     "formatJson": "Format",
diff --git a/web/static/i18n/zh-CN.json b/web/static/i18n/zh-CN.json
index 9981f270..f2aaf649 100644
--- a/web/static/i18n/zh-CN.json
+++ b/web/static/i18n/zh-CN.json
@@ -354,7 +354,7 @@
     "projectName": "项目名称",
     "projectNamePlaceholder": "例如：某客户 Web 渗透",
     "projectDescription": "项目描述",
-    "projectDescriptionPlaceholder": "测试范围、授权边界、注意事项…",
+    "projectDescriptionPlaceholder": "客户/任务备注、协作说明…",
     "createProject": "创建项目",
     "newProject": "新建项目",
     "chatSelectorButton": "绑定项目后共享事实黑板（跨对话）",
@@ -391,7 +391,7 @@
     "updatedPrefix": "更新于 {{time}}",
     "descExpand": "展开全部",
     "descCollapse": "收起",
-    "descriptionLengthHint": "简要说明即可（最多 4000 字）；大段日志/POC 请写入事实黑板 body",
+    "descriptionLengthHint": "仅供团队成员查阅，Agent 不会读取；简要说明即可（最多 4000 字）。需让 Agent 知晓的内容请写入事实黑板",
     "noMatchingFacts": "无匹配事实，请调整筛选条件",
     "noFacts": "暂无事实，点击「添加事实」或由 Agent 自动写入",
     "relatedVulnIdTitle": "关联漏洞 ID",
@@ -465,7 +465,7 @@
     "settingsIntroHint": "配置项目元数据与 Agent 授权边界，保存后即时生效于绑定对话。",
     "pinProject": "置顶项目（列表优先显示）",
     "pinFact": "置顶事实（列表与黑板索引优先）",
-    "editDescriptionPlaceholder": "测试目标、授权范围、联系人、注意事项…",
+    "editDescriptionPlaceholder": "客户/任务备注、协作说明、联系人…",
     "scopeTitle": "测试范围",
     "scopeHint": "JSON 格式，供 Agent 理解授权边界与目标资产",
     "formatJson": "格式化",
diff --git a/web/templates/index.html b/web/templates/index.html
index 9c2651b3..40008d7a 100644
--- a/web/templates/index.html
+++ b/web/templates/index.html
@@ -2034,8 +2034,8 @@
                                                     </div>
                                                     <div class="projects-form-field">
                                                         <label for="project-edit-description" data-i18n="projects.projectDescription">描述</label>
-                                                        <textarea id="project-edit-description" class="form-input projects-description-textarea" rows="3" maxlength="4000" placeholder="测试目标、授权范围、联系人、注意事项…" data-i18n="projects.editDescriptionPlaceholder" data-i18n-attr="placeholder"></textarea>
-                                                        <small class="form-hint" data-i18n="projects.descriptionLengthHint">简要说明即可（最多 4000 字）；大段日志/POC 请写入事实黑板 body</small>
+                                                        <textarea id="project-edit-description" class="form-input projects-description-textarea" rows="3" maxlength="4000" placeholder="客户/任务备注、协作说明、联系人…" data-i18n="projects.editDescriptionPlaceholder" data-i18n-attr="placeholder"></textarea>
+                                                        <small class="form-hint" data-i18n="projects.descriptionLengthHint">仅供团队成员查阅，Agent 不会读取；简要说明即可（最多 4000 字）。需让 Agent 知晓的内容请写入事实黑板</small>
                                                     </div>
                                                 </div>
                                             </section>
@@ -5151,8 +5151,8 @@
                 </div>
                 <div class="projects-form-field">
                     <label for="project-modal-description" data-i18n="projects.projectDescription">项目描述</label>
-                    <textarea id="project-modal-description" class="form-input projects-description-textarea" rows="4" maxlength="4000" placeholder="测试范围、授权边界、注意事项…" data-i18n="projects.projectDescriptionPlaceholder" data-i18n-attr="placeholder"></textarea>
-                    <small class="form-hint" data-i18n="projects.descriptionLengthHint">简要说明即可（最多 4000 字）；大段日志/POC 请写入事实黑板 body</small>
+                    <textarea id="project-modal-description" class="form-input projects-description-textarea" rows="4" maxlength="4000" placeholder="客户/任务备注、协作说明…" data-i18n="projects.projectDescriptionPlaceholder" data-i18n-attr="placeholder"></textarea>
+                    <small class="form-hint" data-i18n="projects.descriptionLengthHint">仅供团队成员查阅，Agent 不会读取；简要说明即可（最多 4000 字）。需让 Agent 知晓的内容请写入事实黑板</small>
                 </div>
             </div>
             <div class="projects-modal-footer">