diff --git a/Docs/api-client.md b/Docs/api-client.md
index 1a092fb..8b5088e 100644
--- a/Docs/api-client.md
+++ b/Docs/api-client.md
@@ -34,7 +34,7 @@
 | 7 | `/api/v1/sessions/{id}` | DELETE | JWT(owner/admin) | ✅ | **删除次级会话及其消息** → `{data:{deleted:<id>}}`；主会话不可删回 `403 forbidden`；未注入 HistoryStore 回 `501` |
 | 8 | `/api/v1/sessions/{id}` | PATCH | JWT(owner/admin) | ✅ | **会话元数据更新**（A4 改名 + D5 置顶 + v0.42 选角）：body `{title?,pinned?,personaId?}`（**至少一个字段**，都缺回 `400`）。`title` trim、≤80 rune，空/超长回 `400`；`pinned` 为 bool（置顶/取消，主会话与次级会话均可）；**`personaId`**（v0.42）重新绑定该会话的角色——**显式 `""` = 解绑**（回到"继承全局默认"），未知角色 id 回 `400`，主会话与次级会话均可改（design/22 §4.5）；**改角色不动已存会话内容**：历史消息仍带各自"说话时的角色"（`chat_messages.persona_id`），只有**下一回合**起用新角色的提示词/记忆域/情绪/思考预算。响应只回显**本次变更**的字段：`{data:{id,title?}}` / `{data:{id,pinned?}}` / `{data:{id,personaId?}}` / 多项同改则都有（**title-only 保持 A4 原 `{id,title}` 形状**）；不存在回 `404`；主会话(`id="web"`)可改名/置顶/选角但不可删；未注入 HistoryStore 回 `501`（不支持角色绑定的 HistoryStore 在 `personaId` 路径也回 `501`）。另：会话**首条用户消息到达时自动命名** title（取前 20 rune 折叠空白；纯空白回落 `主会话`/`次级会话`），列表不再空名 |
 | 8a | `/api/v1/sessions/{id}/read` | POST | JWT(owner/admin) | ✅ | **推进已读游标**（D4 / Android 协同 B3）：body `{before?}`——`before` 为**可选**的毫秒 Unix 时间戳，**缺省（或空 body）= 现在**，即「我看到的都算已读」。→ `200 {data:{sessionId,readAt}}`（`readAt` 为推进后的游标毫秒）。**判定**：`createdAt <= readAt` 的消息算已读（列表 `unreadCount` 只数 `createdAt > readAt` 的）；**语义**：**会话级单一游标、单 owner 账号**——读一处 = **该账号所有端已读**（不做 per-device 游标，与「同一账号所有浏览器都属于同一 owner」一致）；**只前进不后退**（SQL `read_at = MAX(read_at, before)`），所以乱序/并发/重试请求幂等安全、绝不会把已读变回未读。`before` 为 `0`/负数/非数字、或 body 不是 JSON 对象 → `400`；未知会话（含隔离 `sess-xxx`，不在 `chat_sessions`）→ `404`；未注入 HistoryStore → `501 not_implemented`。**成功后广播下行 `session_read`**（§3.9）让同账号其它端清红点；**失败路径不广播**。**升级回填**：迁移 `0010` 把既有会话游标回填为「该会话现有最新消息时间」，升级当天不误报未读 |
-| 9 | `/api/v1/personas` | GET | JWT | ✅ | `{data:[persona...]}` |
+| 9 | `/api/v1/personas` | GET | JWT | ✅ | **角色目录**（任意已认证角色可读）→ `{data:[PersonaSummary...]}`，每项 `{id,name,character,isDefault,mode,memoryNamespace,avatar?,chatBackground?,mood}`。**`mood`（v0.43）** = 该角色**当前情绪状态**（角色级，取值见 `GET /meta/enums` 的 `moods`；`""` = 该角色暂无被跟踪的情绪，**不伪造默认值**）。**语义：情绪跟随角色，与会话无关**——同一角色的所有会话看到同一 `mood`；客户端登录/加载角色目录时用它**播种心情徽标**，避免刷新后短暂空白（随后以 WS `mood` 帧为准）。**不含 admin 专属的 `thinking` 旋钮**（用户侧不暴露模型调用参数）。 |
 | 10 | `/api/v1/audio/transcribe` | POST | JWT(owner) | ✅ | **语音→文本**：body `{audio:"<base64>",format?,deviceId?}` → `{data:{text, provider?}}`（走后端 STT，百炼 `qwen-audio-3.0-asr-flash`；**当结果为空文本/silent 降级时响应体带 `provider`**（如 `"silent"`，非空文本省略），客户端据此提示「没识别到声音」） |
 | 11 | `/api/v1/audio/speech` | POST | JWT(owner) | ✅ | **文本→音频**：body `{text,voice?,format?,instruction?}` → `200` 音频字节（`Content-Type: audio/<format>`，非 JSON envelope，走后端 TTS，百炼 `cosyvoice-v3-flash`，复刻音色可带 `instruction` 情绪指令；**静默降级空音频时仍 `500 tts_empty`，并附 `X-Voice-Provider: silent` 响应头**，客户端据此提示「没生成声音」） |
 | 12 | `/api/v1/audio/voice-clone` | POST | JWT(owner) | ✅ | **声音复刻建音色**：body `{url:"<公网参考音频URL>",prefix?}` → `{data:{voiceId}}`（走百炼 `voice-enrollment` create_voice） |
@@ -110,7 +110,7 @@
 - Web 端镜像实现在 `frontend/web/src/lib/enums.ts`（`labelFor(kind, value)` 对未知值返回原值），权威仍以本端点为准。
 - **反漂移保证（后端）**：后端有测试断言「每个内置适配器的 `Name()` 都在 `platforms` 表内」「`moods` 与 persona 情绪状态机的内置状态一致」「`modes` 与前端 `MODES` 九模式一致」——漏登记即 CI FAIL，客户端拿到的表不会滞后于代码。
 
-> **契约版本 `v0.42`**（多角色并存 + 按会话选角：**新增两个可选字段（会话/消息 `personaId`）+ 两个可选请求字段（`POST /sessions` body、`PATCH /sessions/{id}` 的 `personaId`）**，向后兼容）。
+> **契约版本 `v0.43`**（人格读侧补齐：**`GET /admin/personas` 每项新增可选 `thinking` 对象 + `GET /personas` 每项新增 `mood`**，均为新增字段，向后兼容。`thinking.showToUser` **保持三态**（`null` = 未配置），`mood` 为**角色级**当前情绪）。上一版 `v0.42`：多角色并存 + 按会话选角。
 
 ## 2. REST 端点（管理，`/api/v1/admin/*`）
 
@@ -141,7 +141,7 @@
 
 | # | 端点 | 方法 | 状态 | 说明 |
 |---|------|------|:---:|------|
-| 1 | `/api/v1/admin/personas` | GET | ✅ | 人格列表 |
+| 1 | `/api/v1/admin/personas` | GET | ✅ | 人格列表（`viewer` 可读）→ `{data:[PersonaSummary...]}`，每项含用户侧全部字段，**另加 admin 专属 `thinking?`（v0.43）**：`{budgetTokens,effort,showToUser,mode}`——见下方「人格 `thinking` 读侧契约」 |
 | 2 | `/api/v1/admin/sessions` | GET | ✅ | 持久化会话列表（主会话 + 次级会话，design/16 §2）；未注入 HistoryStore 时回退渠道会话视图。**v0.42 起每项含可选 `personaId`**（与会话级选角同源，见 §1 行 4） |
 | 3 | `/api/v1/admin/memories` | GET | ✅ | 记忆列表（手动添加/检索已实现；编辑/删除/衰减随 M10 扩展） |
 | 4 | `/api/v1/admin/plugins` | GET | ✅ | 插件/能力列表（含 MCP/渠道） |
@@ -171,9 +171,14 @@
 > **M10 前端契约补充（管理面板）**：`GET /api/v1/admin/users` · `GET /api/v1/admin/llm` · `GET /api/v1/admin/automations` · `GET /api/v1/admin/backthink` · `GET /api/v1/admin/rag` · `POST /api/v1/admin/rag/query` · `GET /api/v1/admin/observability/metrics` · `GET /api/v1/admin/observability/trace` · `GET /api/v1/admin/observability/audit` · `GET /api/v1/admin/observability/logs` · `GET /api/v1/admin/notifications` 已实现，返回真实数据（**日志 tail 见下方「可观测性契约」**；未注册 `GET /api/v1/admin/logs`）。**写操作已补齐**（见下方「管理面板写操作契约」）：人格/API key/设备控制/自动化/LLM 测试/渠道连接与识别测试/记忆检索/会话导出/插件卸载**真实持久化或真实生效**；**系统设置安全与存储类**（吊销 API key / 轮换 JWT 密钥 / 备份 / 恢复）也已**真实实现**（见下方「系统设置契约」）；仍为后置 M10：**新增用户**、**IoT 场景与规则**、**主人档案保存**、**编辑环境变量/重启服务/检查更新**——后端如实返回 `501 not_implemented`，不伪造成功。（**知识库删除已实现**：`POST /admin/rag/delete` 真实删除，见下方写操作契约；**插件安装已实现**：v1 为 MCP server 热安装。）
 
 **管理面板写操作契约**（`POST/PUT/DELETE /api/v1/admin/*`，均 **owner-only**，读为 owner/admin；写操作经 audit 落 `audit_logs`；成功 `{data}` / 失败 `{error:{code,message}}`）：
-- `POST /admin/personas` body `{id,name,role,systemPrompt?,characterRef?,modes?/mode?,memoryNamespace?,thinking?}` → `201 {data:{id,name,character,isDefault,mode,memoryNamespace}}`（注册进 persona registry + 持久化到 `configs/personas/<id>.yaml`）；id 已存在回 `409 duplicate`。
-- `PUT /admin/personas/{id}` body 同上（不含 id）→ `200 {data:PersonaSummary}`；不存在回 `404`。
+- `POST /admin/personas` body `{id,name,role,systemPrompt?,characterRef?,modes?/mode?,memoryNamespace?,thinking?}` → `201 {data:PersonaSummary}`（**v0.43 起与读端点同形状：含 `mood` + `thinking?`**；注册进 persona registry + 持久化到 `configs/personas/<id>.yaml`）；id 已存在回 `409 duplicate`。
+- `PUT /admin/personas/{id}` body 同上（不含 id）→ `200 {data:PersonaSummary}`（**v0.43 起与读端点同形状：含 `mood` + `thinking?`**，面板可直接用它回填）；不存在回 `404`。
 - `thinking`（可选，design/01 §2.1）`{budgetTokens?,effort?,showToUser?,mode?}`：写入 YAML 的 `thinking` 节，驱动该人格的思考预算/开关/呈现。`mode` ∈ `default|on|off`（缺省 `default`），非法 `mode` 或负 `budgetTokens` 回 **`400 bad_request`**（`invalid thinking config: …`）。**`showToUser` 是 bool 且可缺省**：**缺省 = 保持现行为（thinking 帧照常推客户端）**；显式 `false` = 只落库不回显。**`PUT` 省略整个 `thinking` 对象时保留已存的 `thinking` 节**（不因客户端不认识该字段而抹掉）；显式传对象则整体替换（字段全缺省即清空）。该字段**不构成能力边界**。
+- **人格 `thinking` 读侧契约（v0.43，回读形状）**：`GET /admin/personas` 每项按**与写侧同构**的形状回读 `thinking`，供面板回填：
+  - **未配置的人格：`thinking` 键完全不出现**（不是全零对象）——与写侧「省略 `thinking` 对象 = 保留已存」互为镜像，客户端可有样学样地「原样回填 / 原样省略」。
+  - 已配置时 **四个键都出现**：`budgetTokens`（number，未设为 `0`）、`effort`（string，未设为 `""`）、`showToUser`、`mode`（string，未设为 `""`）。
+  - **`showToUser` 是三态、且读侧如实三态**：**`null` = 未配置（保持现行为：thinking 帧照常推客户端）**；`true`/`false` = 显式选择（`false` = 只落库不回显）。**服务端不会把 `null` 拍平成 `false`**（写侧用的是 `*bool`，读侧同样保留指针语义），否则「没配过」会被面板误显示成「关」。
+  - **能力提示由服务端负责，客户端不要假装**：`effort` 的**有效白名单随当前生效 provider** 而定（OpenAI 兼容系 `none/minimal/low/medium/high/xhigh/max`；DeepSeek 仅 `none/low/high/max`，别名 `minimal→low`/`medium→high`/`xhigh→high`/`ultra→max`；未知 provider 不支持）。**服务端在模型层按 provider 校验，非法/不被支持时降级并记 WARN**（design/04 §3.2）；读端点只回读**已存配置**，**不承诺**该值在上游真的生效。面板可给出提示与前端枚举校验，但**不得**把「配了 effort」呈现为「上游已启用」。
 - `POST /admin/users` → `501 not_implemented`（**无用户表**：登录仅用 `.env` 单 admin `ADMIN_USERNAME`/`ADMIN_PASSWORD`，角色为 `owner>admin>viewer` 常量；多用户存储 + 登录接入需先设计——design/11 单用户为主。不做「建了却登不进」的假用户）。
 - `POST /admin/users/apikey` body `{role:"owner|admin|viewer"}` → `201 {data:{id:<掩码>, key:<明文·仅此一次>, role}}`。`key` 仅此响应出现一次。
 - `DELETE /admin/users/apikey/{id}`（`id`=列表掩码）→ `200 {data:{id,revoked:true}}`；未命中 `404`。
@@ -354,6 +359,7 @@
 - 语音：上行 `voice_input`（base64 音频或已转写 text），下行 `voice_output`（合成音频 base64 + text）。
 
 ## 5. 变更记录
+- `v0.43`（**人格读侧合并批：admin 回读 `thinking` + 用户侧角色级 `mood`**，对客户端**新增两个可选字段**，向后兼容；design/01 §2/§2.1、design/04 §3.2）：① **`GET /api/v1/admin/personas` 每项新增可选 `thinking`**（`{budgetTokens,effort,showToUser,mode}`），与写侧同构、供面板回填编辑。**未配置的人格不带 `thinking` 键**（不是全零对象），与 `PUT` 的「省略 `thinking` = 保留已存」互为镜像。② **`showToUser` 三态原样回读**：**`null` = 未配置 → 保持现行为（thinking 帧照常推客户端）**，`true`/`false` = 显式开关；**服务端不把 `null` 拍平成 `false`**（否则面板会把「没配过」误显示为「关」，v0.41 的语义会被读侧丢掉）。③ **`GET /api/v1/personas` 每项新增 `mood`（角色级）**：= 该角色**当前情绪状态**（取值同 `GET /meta/enums` 的 `moods`；`""` = 暂无被跟踪情绪，不伪造）。**情绪跟随角色、与会话无关**——同一角色的所有会话看到同一 `mood`；客户端登录/加载角色目录时用它**播种心情徽标**（按角色 id 分桶），消除「刷新后徽标短暂为空」，随后仍以 WS `mood` 帧为准。**用户侧不暴露 `thinking`**（模型调用旋钮属管理侧）。④ **`effort` 的能力提示归服务端**：读端点只回读**已存配置**，**不承诺**该值在当前 provider 上生效——白名单校验/降级/WARN 仍在模型层（design/04 §3.2），客户端不得把「配了」呈现为「已启用」。⑤ **向后兼容**：纯新增字段；不读新字段的客户端行为逐字节不变（旧面板仍可编辑并保留已存 `thinking`）。
 - `v0.42`（**多角色并存 + 按会话选角**，对客户端**新增可选字段/可选请求字段**，向后兼容；design/22 批次 1 = 后端会话级绑定）：① **`chat_sessions` 新增 `persona_id TEXT NOT NULL DEFAULT ''`、`chat_messages` 新增 `persona_id TEXT NOT NULL DEFAULT ''`**（同一迁移 **0011**，down 可逆，**不回填**）。`''` **= 继承全局默认角色**（`owner.yaml:defaultPersona`），所以**既有一切行升级后行为逐字节不变**，且默认角色改名后这些行跟着变（design/22 §4.7/§7-6）。② **`GET /api/v1/sessions` 每项新增可选 `personaId`**（=会话绑定角色）；**消息 DTO（REST `GET /sessions/{id}/messages`、WS `history` 回放、`message_persisted`/`message_edited` 广播）新增可选 `personaId`**（=**说话时的角色**，design/22 §7-5）。③ **`POST /api/v1/sessions` body 新增可选 `{personaId}`**（创建即绑定；未知角色 `400`；响应仅在非空时回显 `personaId`，故**省略时响应形状与 v0.41 完全一致**）；**`PATCH /api/v1/sessions/{id}` body 新增可选 `{personaId}`**（重新绑定，**显式 `""` 解绑**，未知角色 `400`；只回显变更字段）。④ **回合语义**：角色决定**系统提示词 / 记忆命名空间 / 情绪与好感度 / 思考预算**四者**同源**解析（design/22 §4.2），换角色**保留上下文**、**不动已存消息**，**下一回合**起生效；**记忆口径 = 保持 persona 隔离**（design/22 §3）：不同角色的会话互不浮现，同角色的多个会话互相可见。⑤ **请求级覆盖（每次发送临时指定角色）本批未实现**（design/22 §2 裁决规则 1 仍待批次 2/后续）；**渠道级绑定（IM 账号/群默认角色）本批未实现**（design/22 §4.4 批次 2），故 IM 路径仍按默认角色解析。⑥ **契约内新增内部读接口**：网关经窄接口类型断言读取 `history.Store.SessionPersona/SetSessionPersona/NewSubSessionFor`（注入的 HistoryStore **不支持**角色绑定时，`personaId` 写路径回 `501` 而非假成功）。
 - `v0.41`（**人格 `thinking` 配置 + 推理旋钮按 provider 映射**，对客户端**新增一个可选请求字段**，向后兼容）：① `POST /admin/personas` / `PUT /admin/personas/{id}` body 新增可选 **`thinking`** 对象 `{budgetTokens?,effort?,showToUser?,mode?}`（design/01 §2.1），原样写入并持久化到 `configs/personas/<id>.yaml` 的 `thinking` 节；非法 `mode`/负预算回 **`400 bad_request`**；**`PUT` 省略该对象时保留已存 `thinking`**（旧面板/脚本不会抹掉它）；该字段只描述**呈现/资源**，不构成能力边界。② **`showToUser` 语义**：**缺省 = 照常把 `thinking.*` 流帧推给客户端**（现行为），显式 `false` = 仅落库/剥离语义不变、**不推帧**（展示与落库解耦）。③ **服务端推理映射**（对客户端透明，仅影响上游请求）：Anthropic 系在 persona 配置 `budgetTokens`/`mode: on` 时发 `thinking:{type:"enabled",budget_tokens:N}`，并**保证 `budget_tokens + 正文留量 ≤ max_tokens`**（不足则抬高 `max_tokens` 并记 WARN，绝不把正文吃空）；OpenAI 兼容系按**识别到的厂商白名单**校验 `reasoning_effort`（OpenAI 系 `none…max`、DeepSeek 仅 `low/high/max`），非法值**降级到最近一档并记 WARN**；**未知 provider/未识别模型、以及 Qwen 的 `enable_thinking` 硬开关（协议无统一 wire 形状）** 一律记 **WARN（含 provider/字段/取值）并保持请求不变**，绝不静默无效。详见 design/04 §3.2。
 - `v0.40`（**`viewer` 角色真正接线：只读监控档**，对客户端**收紧/放宽若干 admin 读的鉴权**，无端点/字段形状变更）：此前 `viewer` 只是常量（`internal/auth` 的 `RoleViewer` 注释写着「只读 dashboard/logs/monitoring」）而**从未接线**——管理侧 24 条 GET 全走 owner/admin，`viewer` 一条都读不到（**全 403**）。本版新增第四道门 `viewerAuth = owner+admin+viewer`，并把 **12 条只读监控 GET** 从 owner/admin 放宽到 owner/admin/**viewer**：`GET /admin/personas`、`/admin/sessions`、`/admin/plugins`、`/admin/plugins/installed`、`/admin/channels`、`/admin/iot`、`/admin/automations`、`/admin/rag`、`/admin/observability/metrics`、`/admin/observability/trace`、`/admin/observability/logs`、`/admin/notifications`。**明确不放给 viewer**（含凭据获取路径、他人数据、完整消息/导出明文、审计流水，或 `admin` 也不给）：`GET /admin/memories`、`/admin/llm`、`/admin/users`、`/admin/backthink`、`/admin/observability/audit`、`/admin/channels/messages`、`/admin/channels/{platform}/messages`、`/admin/sessions/{id}/export`、`POST /admin/rag/query`（这 9 条 owner/admin）以及其余 **35 条 owner-only**（全部写操作 + `login-qr`/`login-status`/`view`/`friends`/渠道连接与配置/`plugins/*`/`users/*`/`system/*`）。**匿名**：任意 admin 路由仍 `401`（fail-closed）。**向后兼容**：`owner`/`admin` 语义不变（放行集合是超集），仅 `viewer` 的可见面从「全 403」变为 12 条只读监控；不依赖 `viewer` 的客户端行为不变。完整分档见 §2.0「管理侧权限矩阵」。
diff --git a/frontend/web/src/App.tsx b/frontend/web/src/App.tsx
index 8c240cc..71d3bc3 100644
--- a/frontend/web/src/App.tsx
+++ b/frontend/web/src/App.tsx
@@ -16,6 +16,7 @@ import {
 } from "./lib/api";
 import type { SessionMeta } from "./lib/types";
 import { useAppStore } from "./store/useAppStore";
+import { personaMoodSeed } from "./store/personaSelectors";
 
 export default function App(): React.ReactNode {
   // Apply the persisted (dark-first) theme and open the realtime channel only
@@ -23,6 +24,7 @@ export default function App(): React.ReactNode {
   const [route, setRoute] = useState(() => parseAdminHash(window.location.hash));
   const [menuOpen, setMenuOpen] = useState(false);
   const setPersonas = useAppStore((s) => s.setPersonas);
+  const seedMoods = useAppStore((s) => s.seedMoods);
 
   useEffect(() => {
     initTheme();
@@ -37,12 +39,18 @@ export default function App(): React.ReactNode {
 
   // Load the role catalog (design/22 §4.6). The rendered role is no longer one
   // global value: it is derived per active session from this catalog plus that
-  // session's own `personaId` (see useAppStore's selectCurrentPersona), so this
-  // fetch only has to fill the catalog. It must not hinge on a single mount-time
+  // session's own `personaId` (see store/personaSelectors), so this fetch only has
+  // to fill the catalog. It must not hinge on a single mount-time
   // request: a token may appear (login) after mount, or the fetch may transiently
   // fail — in which case the avatar/name would stay on the neutral placeholder. We
   // re-run when the token appears, and retry on failure. The catalog is persisted
   // by useAppStore, so a refresh renders the right role before the fetch returns.
+  //
+  // The catalog also carries each role's *role-level* mood (design/01 §2: emotion
+  // follows the role), which seeds the mood bucket of every role it names — that is
+  // what stops the 心情 badge from flashing empty after a refresh. Seeding merges
+  // (see `seedMoods`): a role the backend reports no mood for is skipped, so a WS
+  // `mood` frame that landed first is never cleared.
   const token = getAuthToken();
   useEffect(() => {
     if (!token) return;
@@ -55,6 +63,7 @@ export default function App(): React.ReactNode {
         .then((list) => {
           if (cancelled) return;
           setPersonas(list);
+          seedMoods(personaMoodSeed(list));
         })
         .catch(() => {
           // Transient failure — retry rather than leaving the placeholder forever.
@@ -67,7 +76,7 @@ export default function App(): React.ReactNode {
       cancelled = true;
       if (retry !== null) window.clearTimeout(retry);
     };
-  }, [token, setPersonas]);
+  }, [token, setPersonas, seedMoods]);
 
   const sessions = useAppStore((s) => s.sessions);
   const activeSessionId = useAppStore((s) => s.activeSessionId);
diff --git a/frontend/web/src/admin/modules/Personas.tsx b/frontend/web/src/admin/modules/Personas.tsx
index 6eaa94e..27cff93 100644
--- a/frontend/web/src/admin/modules/Personas.tsx
+++ b/frontend/web/src/admin/modules/Personas.tsx
@@ -1,11 +1,19 @@
 import { useState } from "react";
 import { useAsyncData } from "../../lib/useAsyncData";
 import { adminListPersonas, adminCreatePersona, adminUpdatePersona } from "../../lib/api";
-import type { PersonaRecord } from "../../lib/types";
+import type { PersonaRecord, PersonaUpsertRequest } from "../../lib/types";
+import {
+  EMPTY_THINKING_DRAFT,
+  thinkingDraftFrom,
+  thinkingDraftToRequest,
+  thinkingValidationError,
+  type ThinkingDraft,
+} from "../../lib/personaThinking";
 import { useAutoReload } from "../hooks";
 import { useAuditStore } from "../audit";
 import { AdminTable, Notice, PageHeader, type AdminColumn } from "../components";
 import { Button, Surface, Tag } from "../../components/primitives";
+import { ThinkingFields } from "./personaThinkingForm";
 
 const columns: AdminColumn<PersonaRecord>[] = [
   { key: "name", title: "名称", render: (p) => <span className="font-medium">{p.name}</span> },
@@ -26,9 +34,18 @@ interface Draft {
   systemPrompt: string;
   mode: string;
   memoryNamespace: string;
+  thinking: ThinkingDraft;
 }
 
-const emptyDraft: Draft = { id: "", name: "", role: "", systemPrompt: "", mode: "", memoryNamespace: "" };
+const emptyDraft: Draft = {
+  id: "",
+  name: "",
+  role: "",
+  systemPrompt: "",
+  mode: "",
+  memoryNamespace: "",
+  thinking: EMPTY_THINKING_DRAFT,
+};
 
 export function PersonasModule(): React.ReactNode {
   const { data, loading, error, reload } = useAsyncData(adminListPersonas, []);
@@ -54,19 +71,38 @@ export function PersonasModule(): React.ReactNode {
     systemPrompt: "",
     mode: p.mode || "",
     memoryNamespace: p.memoryNamespace || "",
+    // Backfill from the read side. An absent block yields the empty draft, which
+    // maps back to "omit `thinking`" — so opening a persona that configures no
+    // thinking and saving it leaves the stored block untouched.
+    thinking: thinkingDraftFrom(p.thinking),
   });
 
-  const create = () => {
-    setBusy(true);
-    setFail(null);
-    adminCreatePersona({
-      id: draft.id,
+  // Only what the client can know: non-negative integer budget, enumerations.
+  // Whether the active provider honors `effort` is the backend's call (it
+  // validates against the provider whitelist and WARNs), so the panel does not
+  // pretend to gate on it.
+  const thinkingError = thinkingValidationError(draft.thinking);
+
+  /** Body shared by create/update. `thinking` is included only when the form
+   *  configures something — an omitted object keeps whatever is stored, so a
+   *  panel that ships zeros would never wipe a hand-edited block. */
+  const payload = (): PersonaUpsertRequest => {
+    const req: PersonaUpsertRequest = {
       name: draft.name,
       role: draft.role,
       systemPrompt: draft.systemPrompt,
       mode: draft.mode,
       memoryNamespace: draft.memoryNamespace,
-    })
+    };
+    const thinking = thinkingDraftToRequest(draft.thinking);
+    if (thinking) req.thinking = thinking;
+    return req;
+  };
+
+  const create = () => {
+    setBusy(true);
+    setFail(null);
+    adminCreatePersona({ id: draft.id, ...payload() })
       .then((p) => {
         log("persona.create", "ok");
         setCreating(false);
@@ -85,13 +121,7 @@ export function PersonasModule(): React.ReactNode {
     if (!selected) return;
     setBusy(true);
     setFail(null);
-    adminUpdatePersona(selected.id, {
-      name: draft.name,
-      role: draft.role,
-      systemPrompt: draft.systemPrompt,
-      mode: draft.mode,
-      memoryNamespace: draft.memoryNamespace,
-    })
+    adminUpdatePersona(selected.id, payload())
       .then((p) => {
         log("persona.edit", "ok");
         setSelected(p);
@@ -154,8 +184,16 @@ export function PersonasModule(): React.ReactNode {
               className="w-full rounded-[var(--mu-radius)] bg-[var(--mu-surface-2)] px-3 py-2 text-sm outline-none focus:ring-1 focus:ring-[var(--mu-accent)]"
             />
           </div>
+          <ThinkingFields
+            value={draft.thinking}
+            onChange={(thinking) => setDraft({ ...draft, thinking })}
+          />
           <div className="flex items-center gap-2">
-            <Button variant="primary" disabled={busy || !draft.id || !draft.name || !draft.role} onClick={create}>
+            <Button
+              variant="primary"
+              disabled={busy || !draft.id || !draft.name || !draft.role || Boolean(thinkingError)}
+              onClick={create}
+            >
               {busy ? "创建中…" : "创建"}
             </Button>
             <Button variant="ghost" disabled={busy} onClick={() => setCreating(false)}>
@@ -186,8 +224,16 @@ export function PersonasModule(): React.ReactNode {
               className="w-full rounded-[var(--mu-radius)] bg-[var(--mu-surface-2)] px-3 py-2 text-sm outline-none focus:ring-1 focus:ring-[var(--mu-accent)]"
             />
           </div>
+          <ThinkingFields
+            value={draft.thinking}
+            onChange={(thinking) => setDraft({ ...draft, thinking })}
+          />
           <div className="flex items-center gap-2">
-            <Button variant="primary" disabled={busy || !draft.name || !draft.role} onClick={save}>
+            <Button
+              variant="primary"
+              disabled={busy || !draft.name || !draft.role || Boolean(thinkingError)}
+              onClick={save}
+            >
               {busy ? "保存中…" : "保存"}
             </Button>
             <Button variant="ghost" disabled={busy} onClick={() => setSelected(null)}>
diff --git a/frontend/web/src/admin/modules/personaThinkingForm.tsx b/frontend/web/src/admin/modules/personaThinkingForm.tsx
new file mode 100644
index 0000000..5d7f2a1
--- /dev/null
+++ b/frontend/web/src/admin/modules/personaThinkingForm.tsx
@@ -0,0 +1,115 @@
+import type { ThinkingDraft } from "../../lib/personaThinking";
+import {
+  THINKING_EFFORTS,
+  THINKING_MODES,
+  thinkingValidationError,
+} from "../../lib/personaThinking";
+import { Tag } from "../../components/primitives";
+
+/** The panel's four `thinking` controls (design/01 §2.1). Split out of Personas.tsx
+ *  (which is near its size ceiling) and kept dumb: it renders + validates the form
+ *  draft, the request mapping lives in lib/personaThinking.ts.
+ *
+ *  It deliberately does NOT claim a capability: `effort` is offered from the union
+ *  of the values the providers behind the API recognize, but whether the *active*
+ *  provider honors the value is decided by the backend (it validates against the
+ *  provider whitelist and WARNs when it drops one). The hint says so instead of
+ *  pretending the knob is on. */
+
+const inputCls =
+  "w-full rounded-[var(--mu-radius)] bg-[var(--mu-surface-2)] px-3 py-2 text-sm outline-none focus:ring-1 focus:ring-[var(--mu-accent)]";
+
+export function ThinkingFields({
+  value,
+  onChange,
+}: {
+  value: ThinkingDraft;
+  onChange: (next: ThinkingDraft) => void;
+}): React.ReactNode {
+  const set = <K extends keyof ThinkingDraft>(key: K, v: ThinkingDraft[K]) =>
+    onChange({ ...value, [key]: v });
+  const err = thinkingValidationError(value);
+
+  return (
+    <div className="space-y-2 rounded-[var(--mu-radius)] bg-[var(--mu-surface-3)]/40 px-3 py-3">
+      <div className="flex flex-wrap items-baseline gap-2">
+        <span className="text-sm font-semibold">思考配置 thinking</span>
+        <span className="text-xs text-[var(--mu-text-lo)]">
+          只描述呈现/资源，不构成能力边界（design/01 §2.1）；留空 = 不配置
+        </span>
+      </div>
+      <div className="grid grid-cols-1 gap-3 sm:grid-cols-2">
+        <label className="block space-y-1">
+          <span className="text-xs text-[var(--mu-text-lo)]">预算 budgetTokens（非负整数，留空 = 不配置）</span>
+          <input
+            value={value.budgetTokens}
+            inputMode="numeric"
+            placeholder="4096"
+            onChange={(e) => set("budgetTokens", e.target.value)}
+            className={inputCls}
+          />
+        </label>
+        <label className="block space-y-1">
+          <span className="text-xs text-[var(--mu-text-lo)]">强度 effort（可留空）</span>
+          <select
+            value={value.effort}
+            onChange={(e) => set("effort", e.target.value)}
+            className={inputCls}
+          >
+            <option value="">（不配置）</option>
+            {THINKING_EFFORTS.map((e) => (
+              <option key={e} value={e}>
+                {e}
+              </option>
+            ))}
+            {/* A stored value outside the list is shown as-is rather than being
+              * silently displayed as "unconfigured" (Docs/api-client.md §1.1: an
+              * unknown value is never dropped or replaced by a placeholder). The
+              * validation error then asks the user to pick a recognized one. */}
+            {value.effort && !(THINKING_EFFORTS as readonly string[]).includes(value.effort) ? (
+              <option value={value.effort}>{value.effort}（未知取值，后端会 WARN 并忽略）</option>
+            ) : null}
+          </select>
+        </label>
+        <label className="block space-y-1">
+          <span className="text-xs text-[var(--mu-text-lo)]">
+            回显 showToUser（未配置 = 保持现行为：思考帧照常推给客户端）
+          </span>
+          <select
+            value={value.showToUser}
+            onChange={(e) => set("showToUser", e.target.value as ThinkingDraft["showToUser"])}
+            className={inputCls}
+          >
+            <option value="unset">未配置（保持现行为）</option>
+            <option value="on">开（推帧）</option>
+            <option value="off">关（只落库不回显）</option>
+          </select>
+        </label>
+        <label className="block space-y-1">
+          <span className="text-xs text-[var(--mu-text-lo)]">开关 mode（硬开关，推理）</span>
+          <select
+            value={value.mode}
+            onChange={(e) => set("mode", e.target.value as ThinkingDraft["mode"])}
+            className={inputCls}
+          >
+            <option value="">（未配置）</option>
+            {THINKING_MODES.map((m) => (
+              <option key={m} value={m}>
+                {m}
+              </option>
+            ))}
+          </select>
+        </label>
+      </div>
+      <p className="text-xs text-[var(--mu-text-lo)]">
+        effort 的有效取值随当前生效 provider 而定（OpenAI 兼容系
+        none/minimal/low/medium/high/xhigh/max；DeepSeek none/low/high/max，别名
+        minimal→low、medium→high、xhigh→high、ultra→max；未知 provider 不支持）。面板只做前端枚举校验；
+        该值在上游是否真生效，由后端按 provider 校验并记 WARN 决定，此处不代为承诺。
+      </p>
+      {err ? (
+        <Tag tone="err">{err}</Tag>
+      ) : null}
+    </div>
+  );
+}
diff --git a/frontend/web/src/components/Nav.tsx b/frontend/web/src/components/Nav.tsx
index 6d5a4ba..79d46f2 100644
--- a/frontend/web/src/components/Nav.tsx
+++ b/frontend/web/src/components/Nav.tsx
@@ -3,7 +3,8 @@ import { applyTheme, readTheme, type ThemeMode } from "../lib/theme";
 import { getAuthToken } from "../lib/api";
 import { labelFor } from "../lib/enums";
 import { personaAvatar } from "../lib/persona";
-import { useAppStore, useCurrentMood, useCurrentPersona } from "../store/useAppStore";
+import { useAppStore } from "../store/useAppStore";
+import { useCurrentMood, useCurrentPersona } from "../store/personaSelectors";
 import { Icon } from "./Icon";
 import { NavItem } from "./NavItem";
 import { SessionRail } from "./SessionRail";
diff --git a/frontend/web/src/components/TopBar.tsx b/frontend/web/src/components/TopBar.tsx
index 73de3c3..7469af9 100644
--- a/frontend/web/src/components/TopBar.tsx
+++ b/frontend/web/src/components/TopBar.tsx
@@ -1,5 +1,6 @@
 import { useState } from "react";
-import { useAppStore, useCurrentMood, useCurrentPersona } from "../store/useAppStore";
+import { useAppStore } from "../store/useAppStore";
+import { useCurrentMood, useCurrentPersona } from "../store/personaSelectors";
 import { useModeStore } from "../store/useModeStore";
 import { applyTheme, readTheme, type ThemeMode } from "../lib/theme";
 import { personaAvatar } from "../lib/persona";
diff --git a/frontend/web/src/components/chat.tsx b/frontend/web/src/components/chat.tsx
index 34a8934..7f201c5 100644
--- a/frontend/web/src/components/chat.tsx
+++ b/frontend/web/src/components/chat.tsx
@@ -1,6 +1,7 @@
 import { useState } from "react";
 import type { ChatMessage, Mode, PersonaRecord, ToolUsed } from "../lib/types";
-import { useAppStore, useCurrentPersona } from "../store/useAppStore";
+import { useAppStore } from "../store/useAppStore";
+import { useCurrentPersona } from "../store/personaSelectors";
 import { personaAvatar, resolveMessagePersona } from "../lib/persona";
 import { labelFor } from "../lib/enums";
 import { Tag } from "./primitives";
diff --git a/frontend/web/src/lib/personaThinking.test.ts b/frontend/web/src/lib/personaThinking.test.ts
new file mode 100644
index 0000000..fdca78c
--- /dev/null
+++ b/frontend/web/src/lib/personaThinking.test.ts
@@ -0,0 +1,165 @@
+// Logic test for the panel's `thinking` form ↔ request mapping (design/01 §2.1,
+// v0.43 read side). The two rules it must not lose are the tri-state of
+// `showToUser` (omitted = 未配置 = keep the current behavior; never flattened into
+// `false`) and the omission rule: a form that configures nothing must leave the
+// `thinking` key OUT of the body, because the write side reads an omitted object
+// as "keep the stored block" (an all-default object would CLEAR it). The project
+// has no frontend test runner and no jsdom, so this is a dependency-free
+// plain-node check driving the real module (lib/personaThinking.ts) and throwing
+// on the first failure.
+//
+// Run it with the esbuild that already ships with vite (no new dependency, no
+// package.json change):
+//
+//   cd frontend/web \
+//     && ./node_modules/.bin/esbuild src/lib/personaThinking.test.ts \
+//          --bundle --platform=node --format=esm \
+//          --outfile=/tmp/cyrene-persona-thinking.test.mjs \
+//     && node /tmp/cyrene-persona-thinking.test.mjs
+//
+// `tsc --noEmit` (part of `npm run build`) type-checks this file, which is why it
+// imports nothing from node:*.
+
+import {
+  EMPTY_THINKING_DRAFT,
+  THINKING_EFFORTS,
+  thinkingDraftFrom,
+  thinkingDraftToRequest,
+  thinkingValidationError,
+  type PersonaThinking,
+  type ThinkingDraft,
+} from "./personaThinking";
+
+let checks = 0;
+
+function ok(cond: boolean, what: string): void {
+  checks += 1;
+  if (!cond) throw new Error(`FAILED: ${what}`);
+}
+
+function same(got: unknown, want: unknown, what: string): void {
+  const g = JSON.stringify(got);
+  const w = JSON.stringify(want);
+  ok(g === w, `${what} — got ${g}, want ${w}`);
+}
+
+/* --- 1. Backfill from the read side ----------------------------------------- */
+
+// An absent block (persona configures no thinking) reads as the empty draft.
+same(thinkingDraftFrom(undefined), EMPTY_THINKING_DRAFT, "absent read block → empty draft");
+same(thinkingDraftFrom(null), EMPTY_THINKING_DRAFT, "null read block → empty draft");
+
+// A configured block backfills field by field, including the tri-state arm.
+const read: PersonaThinking = { budgetTokens: 4096, effort: "high", showToUser: false, mode: "off" };
+same(
+  thinkingDraftFrom(read),
+  { budgetTokens: "4096", effort: "high", showToUser: "off", mode: "off" },
+  "configured block backfills (explicit false stays 关)"
+);
+same(
+  thinkingDraftFrom({ budgetTokens: 0, effort: "", showToUser: null, mode: "" }),
+  EMPTY_THINKING_DRAFT,
+  "an all-unset read block backfills to the empty draft"
+);
+same(
+  thinkingDraftFrom({ budgetTokens: 1024, effort: "", showToUser: null, mode: "" }),
+  { budgetTokens: "1024", effort: "", showToUser: "unset", mode: "" },
+  "null showToUser backfills as 未配置, not 关"
+);
+// An out-of-list stored value is preserved (never silently blanked).
+same(
+  thinkingDraftFrom({ budgetTokens: 0, effort: "tiny", showToUser: null, mode: "always" }).effort,
+  "tiny",
+  "an unknown stored effort is preserved for display"
+);
+
+/* --- 2. Form → request body, incl. tri-state and omission -------------------- */
+
+// The omission rule: nothing configured → no `thinking` key at all on the wire.
+const untouched = thinkingDraftToRequest(EMPTY_THINKING_DRAFT);
+ok(untouched === undefined, "an untouched form maps to undefined (omit the block)");
+same(
+  JSON.stringify({ name: "昔涟", thinking: untouched }),
+  JSON.stringify({ name: "昔涟" }),
+  "an untouched form leaves no `thinking` key in the request body (省略保留)"
+);
+// …and a whitespace-only budget is still "untouched", not budget 0.
+ok(
+  thinkingDraftToRequest({ ...EMPTY_THINKING_DRAFT, budgetTokens: "  " }) === undefined,
+  "a whitespace-only budget is treated as unconfigured"
+);
+
+// The tri-state of showToUser, verbatim on the wire.
+const unset = thinkingDraftToRequest({ ...EMPTY_THINKING_DRAFT, budgetTokens: "2048" });
+ok(unset !== undefined, "a budget-only form still maps to a request");
+ok(!("showToUser" in (unset as object)), "showToUser:未配置 omits the key (stays nil, not false)");
+same(unset?.showToUser, undefined, "showToUser:未配置 is undefined, never false");
+
+const off = thinkingDraftToRequest({ ...EMPTY_THINKING_DRAFT, showToUser: "off" });
+same(off, { showToUser: false }, "showToUser:关 maps to the boolean false");
+same(JSON.stringify(off), JSON.stringify({ showToUser: false }), "an explicit false survives JSON.stringify");
+
+const on = thinkingDraftToRequest({ ...EMPTY_THINKING_DRAFT, showToUser: "on" });
+same(on, { showToUser: true }, "showToUser:开 maps to the boolean true");
+
+// Every other knob maps only when set.
+same(
+  thinkingDraftToRequest({ budgetTokens: "4096", effort: "medium", showToUser: "unset", mode: "on" }),
+  { budgetTokens: 4096, effort: "medium", mode: "on" },
+  "set knobs map, unset ones are omitted"
+);
+same(
+  thinkingDraftToRequest({ budgetTokens: "0", effort: "", showToUser: "unset", mode: "" }),
+  { budgetTokens: 0 },
+  "an explicit 0 budget is a configured value (0 = 未设 for the backend)"
+);
+
+/* --- 3. Round-trip: read → form → request ---------------------------------- */
+
+// What the panel sends back for a persona it just loaded must describe the same
+// stored block, so opening a persona and saving it changes nothing.
+const cases: PersonaThinking[] = [
+  { budgetTokens: 4096, effort: "high", showToUser: false, mode: "off" },
+  { budgetTokens: 2048, effort: "", showToUser: null, mode: "" },
+  { budgetTokens: 0, effort: "", showToUser: true, mode: "on" },
+  { budgetTokens: 0, effort: "low", showToUser: null, mode: "default" },
+];
+for (const c of cases) {
+  const back = thinkingDraftToRequest(thinkingDraftFrom(c));
+  // Built in the mapper's own key order (JSON.stringify is order-sensitive here).
+  const want: Record<string, unknown> = {};
+  if (c.budgetTokens) want.budgetTokens = c.budgetTokens;
+  if (c.effort) want.effort = c.effort;
+  if (c.mode) want.mode = c.mode;
+  if (c.showToUser !== null) want.showToUser = c.showToUser;
+  same(back, want, `round-trip ${JSON.stringify(c)}`);
+}
+
+/* --- 4. Input validation (only what the client can know) -------------------- */
+
+same(thinkingValidationError(EMPTY_THINKING_DRAFT), null, "empty draft is valid");
+same(thinkingValidationError({ ...EMPTY_THINKING_DRAFT, budgetTokens: "4096" }), null, "4096 is valid");
+same(thinkingValidationError({ ...EMPTY_THINKING_DRAFT, budgetTokens: "0" }), null, "0 is valid (non-negative)");
+ok(thinkingValidationError({ ...EMPTY_THINKING_DRAFT, budgetTokens: "-1" }) !== null, "a negative budget is rejected");
+ok(thinkingValidationError({ ...EMPTY_THINKING_DRAFT, budgetTokens: "1.5" }) !== null, "a fractional budget is rejected");
+ok(thinkingValidationError({ ...EMPTY_THINKING_DRAFT, budgetTokens: "4096t" }) !== null, "a non-numeric budget is rejected");
+same(thinkingValidationError({ ...EMPTY_THINKING_DRAFT, mode: "on" }), null, "mode on is valid");
+same(thinkingValidationError({ ...EMPTY_THINKING_DRAFT, mode: "default" }), null, "mode default is valid");
+ok(
+  thinkingValidationError({ ...EMPTY_THINKING_DRAFT, mode: "always" as ThinkingDraft["mode"] }) !== null,
+  "an unknown mode is rejected"
+);
+for (const e of THINKING_EFFORTS) {
+  same(thinkingValidationError({ ...EMPTY_THINKING_DRAFT, effort: e }), null, `effort ${e} is valid`);
+}
+ok(thinkingValidationError({ ...EMPTY_THINKING_DRAFT, effort: "tiny" }) !== null, "an unknown effort is rejected");
+
+// The panel must not claim a capability: no error is raised merely because the
+// value may be unsupported by the *active* provider (the backend WARNs instead).
+same(
+  thinkingValidationError({ ...EMPTY_THINKING_DRAFT, effort: "none", mode: "off" }),
+  null,
+  "a provider-dependent combination is not blocked client-side"
+);
+
+console.log(`personaThinking: ${checks} checks passed`);
diff --git a/frontend/web/src/lib/personaThinking.ts b/frontend/web/src/lib/personaThinking.ts
new file mode 100644
index 0000000..6189359
--- /dev/null
+++ b/frontend/web/src/lib/personaThinking.ts
@@ -0,0 +1,135 @@
+/** Persona `thinking` config — the wire shapes and the panel's form mapping
+ *  (design/01 §2.1; provider mapping in design/04 §3.2).
+ *
+ *  Kept out of lib/types.ts (which is at its size ceiling) and, more importantly,
+ *  out of the panel component: the mapping is pure, so the tri-state rules are
+ *  testable without a browser.
+ *
+ *  Two rules the read/write sides share:
+ *  - **`showToUser` is tri-state all the way.** `null`/absent = 未配置 = keep the
+ *    current behavior (thinking frames keep flowing); `true`/`false` = an explicit
+ *    choice. Flattening "unset" onto `false` would silently turn display off.
+ *  - **An all-unset block is omitted, not sent as zeros.** The write side reads an
+ *    omitted `thinking` object as "keep the stored one", so a panel that ships
+ *    defaults would wipe a hand-edited config.
+ */
+
+/** Read shape of the `thinking` block (`GET /api/v1/admin/personas`, v0.43). The
+ *  key is absent entirely when the persona configures none. */
+export interface PersonaThinking {
+  budgetTokens: number;
+  effort: string;
+  /** `null` = 未配置（保持现行为）, `true`/`false` = 显式选择. */
+  showToUser: boolean | null;
+  mode: string;
+}
+
+/** Write shape (`POST`/`PUT /api/v1/admin/personas`). An omitted key = unset; an
+ *  omitted whole object = keep the stored block. */
+export interface PersonaThinkingRequest {
+  budgetTokens?: number;
+  effort?: string;
+  showToUser?: boolean;
+  mode?: string;
+}
+
+/** Explicit reasoning switch, matching the backend's `ThinkingMode` constants
+ *  (`internal/persona/loader`). */
+export const THINKING_MODES = ["default", "on", "off"] as const;
+
+/** `reasoning_effort` values the model layer recognizes across the providers it
+ *  maps (design/04 §3.2). The **effective whitelist still depends on the active
+ *  provider** — OpenAI-compatible takes `none…max`; DeepSeek takes
+ *  `none/low/high/max` and normalizes the aliases (`minimal→low`, `medium→high`,
+ *  `xhigh→high`, `ultra→max`) — and only the backend can see which provider is in
+ *  play, so this list drives a select, not a promise. `ultra` is listed because
+ *  DeepSeek accepts it as an alias; on an OpenAI-compatible provider the backend
+ *  drops it and WARNs. */
+export const THINKING_EFFORTS = [
+  "none",
+  "minimal",
+  "low",
+  "medium",
+  "high",
+  "xhigh",
+  "max",
+  "ultra",
+] as const;
+
+/** Form state: everything is a string so a half-typed number never coerces to 0
+ *  and the tri-state select has an explicit "unset" arm. */
+export interface ThinkingDraft {
+  budgetTokens: string;
+  effort: string;
+  showToUser: "unset" | "on" | "off";
+  mode: "" | (typeof THINKING_MODES)[number];
+}
+
+export const EMPTY_THINKING_DRAFT: ThinkingDraft = {
+  budgetTokens: "",
+  effort: "",
+  showToUser: "unset",
+  mode: "",
+};
+
+/** Backfill the form from the read side. An absent block (and an unknown mode)
+ *  yields the empty draft, which maps back to "omitted" — so opening a persona
+ *  that configures no thinking and saving it changes nothing. */
+export function thinkingDraftFrom(read: PersonaThinking | null | undefined): ThinkingDraft {
+  if (!read) return EMPTY_THINKING_DRAFT;
+  return {
+    budgetTokens: read.budgetTokens ? String(read.budgetTokens) : "",
+    effort: read.effort ?? "",
+    showToUser: read.showToUser === true ? "on" : read.showToUser === false ? "off" : "unset",
+    mode: (THINKING_MODES as readonly string[]).includes(read.mode)
+      ? (read.mode as ThinkingDraft["mode"])
+      : "",
+  };
+}
+
+/** Input validation only — what the client can actually know. Non-negative
+ *  integer budget, enumerations for mode/effort. Whether the provider really
+ *  honors the value is the backend's call (it validates against the active
+ *  provider's whitelist and WARNs when it drops one); the panel does not pretend
+ *  to know that, so it does not block on it. Returns an error message, or null. */
+export function thinkingValidationError(draft: ThinkingDraft): string | null {
+  const budget = draft.budgetTokens.trim();
+  if (budget !== "") {
+    if (!/^\d+$/.test(budget)) return "思考预算必须是非负整数";
+    if (Number(budget) > Number.MAX_SAFE_INTEGER) return "思考预算过大";
+  }
+  if (draft.mode !== "" && !(THINKING_MODES as readonly string[]).includes(draft.mode)) {
+    return `思考开关取值非法：${draft.mode}（仅 default/on/off）`;
+  }
+  if (draft.effort !== "" && !(THINKING_EFFORTS as readonly string[]).includes(draft.effort)) {
+    return `思考强度取值非法：${draft.effort}`;
+  }
+  return null;
+}
+
+/** Whether the form holds anything at all. An untouched form must not be sent:
+ *  the write side treats an omitted `thinking` object as "keep the stored block". */
+export function thinkingDraftIsEmpty(draft: ThinkingDraft): boolean {
+  return (
+    draft.budgetTokens.trim() === "" &&
+    draft.effort === "" &&
+    draft.mode === "" &&
+    draft.showToUser === "unset"
+  );
+}
+
+/** Map the form onto the request body. Returns `undefined` when nothing is
+ *  configured — the caller then omits `thinking` entirely, preserving whatever is
+ *  stored (write-side semantics, unchanged). `showToUser: "unset"` omits the key
+ *  so it stays `nil` in the backend, never a flattened `false`. Callers validate
+ *  with `thinkingValidationError` first. */
+export function thinkingDraftToRequest(draft: ThinkingDraft): PersonaThinkingRequest | undefined {
+  if (thinkingDraftIsEmpty(draft)) return undefined;
+  const req: PersonaThinkingRequest = {};
+  const budget = draft.budgetTokens.trim();
+  if (budget !== "") req.budgetTokens = Number(budget);
+  if (draft.effort !== "") req.effort = draft.effort;
+  if (draft.mode !== "") req.mode = draft.mode;
+  if (draft.showToUser !== "unset") req.showToUser = draft.showToUser === "on";
+  return req;
+}
diff --git a/frontend/web/src/lib/types.ts b/frontend/web/src/lib/types.ts
index 25bf2bb..c860b08 100644
--- a/frontend/web/src/lib/types.ts
+++ b/frontend/web/src/lib/types.ts
@@ -1,6 +1,8 @@
 // Shared wire & UI model types for the Cyrene v2 user frontend (M9).
 // Strict mode: no `any`; unknown payloads are narrowed at the parse boundary.
 
+import type { PersonaThinking, PersonaThinkingRequest } from "./personaThinking";
+
 /** The 9 behavior modes. Switching only changes the presentation layer. */
 export type Mode =
   | "chat"
@@ -218,6 +220,14 @@ export interface PersonaRecord {
   avatar?: string;
   /** Per-orientation chat wallpaper; a role's own, never another's. Omitted when unset. */
   chatBackground?: { landscape?: string; portrait?: string };
+  /** The role's current mood (v0.43, role-level: design/01 §2 — emotion follows
+   *  the role, never a session, so every session of a role shows the same value).
+   *  `""`/absent = the role has no tracked emotion; the UI keeps its neutral
+   *  placeholder rather than inventing one. Used to seed the mood badge on load. */
+  mood?: string;
+  /** The optional `thinking` block (v0.43). Admin list (`GET /admin/personas`)
+   *  only; absent when the persona configures none. */
+  thinking?: PersonaThinking;
 }
 
 export interface LoginResult {
@@ -557,6 +567,11 @@ export interface PersonaUpsertRequest {
   modes?: string[];
   mode?: string;
   memoryNamespace?: string;
+  /** Optional reasoning/presentation block (design/01 §2.1). **Omit the key when
+   *  the form configures nothing**: an omitted object keeps the stored block,
+   *  while an all-default object clears it. `showToUser` stays tri-state — omit it
+   *  (= not configured) rather than sending `false`. */
+  thinking?: PersonaThinkingRequest;
 }
 
 /** POST /api/v1/admin/users/apikey — the plaintext key is returned exactly once. */
diff --git a/frontend/web/src/modes/ChatShell.tsx b/frontend/web/src/modes/ChatShell.tsx
index 067c1da..d48e427 100644
--- a/frontend/web/src/modes/ChatShell.tsx
+++ b/frontend/web/src/modes/ChatShell.tsx
@@ -1,5 +1,6 @@
 import { useEffect, useMemo, useRef, useState } from "react";
-import { useAppStore, useCurrentPersona } from "../store/useAppStore";
+import { useAppStore } from "../store/useAppStore";
+import { useCurrentPersona } from "../store/personaSelectors";
 import { useModeStore } from "../store/useModeStore";
 import { useSendChat } from "../lib/useChat";
 import { sendUp } from "../lib/ws";
diff --git a/frontend/web/src/store/personaMoodSeed.test.ts b/frontend/web/src/store/personaMoodSeed.test.ts
new file mode 100644
index 0000000..c36ed45
--- /dev/null
+++ b/frontend/web/src/store/personaMoodSeed.test.ts
@@ -0,0 +1,143 @@
+// Logic test for seeding the mood badge from the role catalog (v0.43 read side,
+// design/01 §2): `GET /personas` reports each role's *role-level* mood, and the
+// frontend seeds `moods[roleId]` from it on load so a refresh no longer flashes an
+// empty 心情 badge. The project has no frontend test runner and no jsdom, so this
+// is a dependency-free plain-node check driving the real seed helper
+// (store/personaSelectors.ts), the real store and the real WS frame router
+// (lib/ws.ts), and throwing on the first failure.
+//
+// Run it with the esbuild that already ships with vite (no new dependency, no
+// package.json change); the banner supplies the `window.localStorage` the store's
+// persist middleware probes, which is simply absent under node:
+//
+//   cd frontend/web \
+//     && ./node_modules/.bin/esbuild src/store/personaMoodSeed.test.ts \
+//          --bundle --platform=node --format=esm \
+//          --banner:js='globalThis.window={localStorage:{getItem:()=>null,setItem:()=>{},removeItem:()=>{}}};' \
+//          --outfile=/tmp/cyrene-persona-mood-seed.test.mjs \
+//     && node /tmp/cyrene-persona-mood-seed.test.mjs
+//
+// `tsc --noEmit` (part of `npm run build`) type-checks this file, which is why it
+// imports nothing from node:*.
+
+import { dispatchFrame } from "../lib/ws";
+import type { PersonaRecord, SessionMeta } from "../lib/types";
+import { personaMoodSeed, selectCurrentMood } from "./personaSelectors";
+import { useAppStore } from "./useAppStore";
+
+let checks = 0;
+
+function ok(cond: boolean, what: string): void {
+  checks += 1;
+  if (!cond) throw new Error(`FAILED: ${what}`);
+}
+
+function same(got: unknown, want: unknown, what: string): void {
+  const g = JSON.stringify(got);
+  const w = JSON.stringify(want);
+  ok(g === w, `${what} — got ${g}, want ${w}`);
+}
+
+const MAIN = "web";
+const SUB_A = "web:sub-a";
+const SUB_B = "web:sub-b";
+
+/** A catalog shaped like `GET /api/v1/personas` v0.43: 昔涟 has a tracked mood,
+ *  雪 has none (the backend reports ""), and the third role carries no mood field
+ *  at all (an older backend). */
+const CATALOG: PersonaRecord[] = [
+  { id: "cyrene", name: "昔涟", character: "cyrene", isDefault: true, mode: "chat", memoryNamespace: "persona.cyrene", mood: "happy" },
+  { id: "yuki", name: "雪", character: "yuki", isDefault: false, mode: "chat", memoryNamespace: "persona.yuki", mood: "" },
+  { id: "old", name: "旧端点", character: "old", isDefault: false, mode: "chat", memoryNamespace: "persona.old" },
+];
+
+/** Main session → default role (昔涟); sub-a → 雪; sub-b → default again. */
+function sessions(): Record<string, SessionMeta> {
+  return {
+    [MAIN]: { id: MAIN, type: "main", createdAt: 1 },
+    [SUB_A]: { id: SUB_A, type: "sub", createdAt: 2, personaId: "yuki" },
+    [SUB_B]: { id: SUB_B, type: "sub", createdAt: 3, personaId: "" },
+  };
+}
+
+/** 1. The pure seed: role id → role-level mood, and nothing for a role the
+ *  backend reported no mood for. */
+function testSeedShape(): void {
+  same(personaMoodSeed(CATALOG), { cyrene: "happy" }, "only roles with a mood are seeded");
+  same(personaMoodSeed([]), {}, "an empty catalog seeds nothing");
+  same(personaMoodSeed([{ ...CATALOG[0], mood: "" }]), {}, "an empty mood seeds nothing (never a placeholder)");
+  same(personaMoodSeed([{ ...CATALOG[0], id: "" , mood: "happy" }]), {}, "a role without an id seeds nothing");
+  // Seeding is keyed by role id, so it can never key onto a session.
+  ok(!Object.keys(personaMoodSeed(CATALOG)).includes(MAIN), "no session id ever becomes a mood bucket");
+}
+
+/** 2. The refresh scenario this batch exists for: after loading the catalog the
+ *  active role's mood is already known — no blank badge while the next WS frame
+ *  is awaited. */
+function testSeedFillsBadgeOnLoad(): void {
+  useAppStore.setState({ moods: {}, personas: [], sessions: {}, activeSessionId: "" });
+  same(selectCurrentMood(useAppStore.getState()), null, "before the catalog loads there is no mood");
+
+  useAppStore.setState({ personas: CATALOG, sessions: sessions(), activeSessionId: MAIN });
+  useAppStore.getState().seedMoods(personaMoodSeed(CATALOG));
+  same(useAppStore.getState().moods, { cyrene: "happy" }, "the catalog's role mood lands in its own bucket");
+  same(selectCurrentMood(useAppStore.getState()), "happy", "the badge is filled on load (main session → 昔涟)");
+}
+
+/** 3. The mood is role-level: two sessions of the same role show the same mood,
+ *  and switching to another role's session shows that role's own value. */
+function testMoodIsRoleLevel(): void {
+  useAppStore.setState({
+    moods: {},
+    personas: CATALOG,
+    sessions: sessions(),
+    activeSessionId: MAIN,
+  });
+  useAppStore.getState().seedMoods(personaMoodSeed(CATALOG));
+
+  same(selectCurrentMood(useAppStore.getState()), "happy", "main session (default role 昔涟) shows happy");
+  useAppStore.setState({ activeSessionId: SUB_B });
+  same(selectCurrentMood(useAppStore.getState()), "happy", "another session of the same role shows the SAME mood");
+  useAppStore.setState({ activeSessionId: SUB_A });
+  same(selectCurrentMood(useAppStore.getState()), null, "a role with no tracked mood shows nothing (no invented placeholder)");
+
+  // A live frame for the unseeded role fills it, and the role-scoped keying keeps
+  // the two roles apart.
+  dispatchFrame({ type: "mood", data: { mood: "sad", personaId: "yuki" } });
+  same(selectCurrentMood(useAppStore.getState()), "sad", "a mood frame updates the active role's badge");
+  useAppStore.setState({ activeSessionId: MAIN });
+  same(selectCurrentMood(useAppStore.getState()), "happy", "the other role's badge is untouched");
+}
+
+/** 4. Seeding merges: it overwrites with the server's truth but never clears a
+ *  bucket, so a WS frame that arrived before the catalog loaded survives. */
+function testSeedMergesAndNeverClears(): void {
+  useAppStore.setState({ moods: { yuki: "excited" }, personas: [], sessions: {}, activeSessionId: MAIN });
+  useAppStore.getState().seedMoods(personaMoodSeed(CATALOG));
+  same(useAppStore.getState().moods, { yuki: "excited", cyrene: "happy" }, "an unmentioned bucket is kept, the seeded one added");
+
+  // The server is the truth for a role it does report a mood for.
+  useAppStore.setState({ moods: { cyrene: "angry" } });
+  useAppStore.getState().seedMoods(personaMoodSeed(CATALOG));
+  same(useAppStore.getState().moods.cyrene, "happy", "a reported role mood overwrites the stale local value");
+
+  // "" / absent (an untracked role) must not wipe a live bucket.
+  useAppStore.setState({ moods: { yuki: "excited" } });
+  useAppStore.getState().seedMoods(personaMoodSeed(CATALOG));
+  same(useAppStore.getState().moods.yuki, "excited", "a role the seed skips keeps its bucket");
+
+  // An empty seed is a no-op (no needless state churn).
+  const before = useAppStore.getState().moods;
+  useAppStore.getState().seedMoods({});
+  ok(useAppStore.getState().moods === before, "an empty seed leaves the state object untouched");
+}
+
+function run(): void {
+  testSeedShape();
+  testSeedFillsBadgeOnLoad();
+  testMoodIsRoleLevel();
+  testSeedMergesAndNeverClears();
+  console.log(`personaMoodSeed.test: ${checks} checks passed`);
+}
+
+run();
diff --git a/frontend/web/src/store/personaSelectors.ts b/frontend/web/src/store/personaSelectors.ts
new file mode 100644
index 0000000..e6bfc23
--- /dev/null
+++ b/frontend/web/src/store/personaSelectors.ts
@@ -0,0 +1,50 @@
+import { resolveSessionPersona } from "../lib/persona";
+import type { PersonaRecord } from "../lib/types";
+import { useAppStore, type AppStore } from "./useAppStore";
+
+/** The role the UI renders (design/22 §4.6): the active session's bound role,
+ *  else the global default. THE single resolution point — the avatar, name,
+ *  wallpaper, mood bucket and message labels all read it, so none of them can
+ *  disagree about "who is speaking" (design/22 §5 risk row 1).
+ *
+ *  Lives in its own module (not in useAppStore.ts, which is at its size ceiling)
+ *  so the store file keeps holding state/actions only. */
+export function selectCurrentPersona(s: AppStore): PersonaRecord | null {
+  return resolveSessionPersona(s.activeSessionId, s.sessions, s.personas);
+}
+
+/** The active role's mood (design/22 §4.6). `mood` frames are role-scoped and
+ *  carry no sessionId, so a role's mood is only shown above its own sessions —
+ *  the bucket is keyed by the *resolved* role id, never a global value. */
+export function selectCurrentMood(s: AppStore): string | null {
+  const personaId = selectCurrentPersona(s)?.id ?? "";
+  return personaId ? s.moods[personaId] ?? null : null;
+}
+
+/** Subscribe to the active session's role. */
+export function useCurrentPersona(): PersonaRecord | null {
+  return useAppStore(selectCurrentPersona);
+}
+
+/** Subscribe to the active role's mood. */
+export function useCurrentMood(): string | null {
+  return useAppStore(selectCurrentMood);
+}
+
+/** Mood buckets to seed from the role catalog (`GET /api/v1/personas`): the role
+ *  id → its current role-level mood (design/01 §2: mood follows the role).
+ *
+ *  Two rules, both about not lying with a placeholder:
+ *  - a role the backend reports no mood for (`""`/absent) contributes NOTHING, so
+ *    seeding never clears a bucket a WS `mood` frame already filled;
+ *  - only roles the catalog actually lists are seeded, so no bucket is invented.
+ *
+ *  Pure and exported so the seeding rule is testable without a browser. */
+export function personaMoodSeed(personas: PersonaRecord[]): Record<string, string> {
+  const seed: Record<string, string> = {};
+  for (const p of personas) {
+    if (p.id && p.mood) seed[p.id] = p.mood;
+  }
+  return seed;
+}
+
diff --git a/frontend/web/src/store/personaSession.test.ts b/frontend/web/src/store/personaSession.test.ts
index 5c59d47..a0ee6c4 100644
--- a/frontend/web/src/store/personaSession.test.ts
+++ b/frontend/web/src/store/personaSession.test.ts
@@ -25,7 +25,8 @@
 import { resolveMessagePersona, resolveSessionPersona } from "../lib/persona";
 import { setSessionPersona, type SessionPersonaIO } from "../lib/sessionPersona";
 import { dispatchFrame } from "../lib/ws";
-import { selectCurrentPersona, useAppStore } from "./useAppStore";
+import { selectCurrentPersona } from "./personaSelectors";
+import { useAppStore } from "./useAppStore";
 import type { PersonaRecord, SessionMeta } from "../lib/types";
 
 let checks = 0;
diff --git a/frontend/web/src/store/useAppStore.ts b/frontend/web/src/store/useAppStore.ts
index b87e5fd..c31b157 100644
--- a/frontend/web/src/store/useAppStore.ts
+++ b/frontend/web/src/store/useAppStore.ts
@@ -13,7 +13,6 @@ import type {
   ToolUsed,
   WsStatus,
 } from "../lib/types";
-import { resolveSessionPersona } from "../lib/persona";
 import { now, uid } from "../lib/util";
 
 interface ChatContext {
@@ -37,7 +36,8 @@ export interface AppStore {
    *  persona-scoped and carries no `sessionId`, so each role gets its own bucket
    *  and the UI shows the bucket of the *active session's* role — role X's mood
    *  must not sit above role Y's conversation. `""` holds events that arrived
-   *  without a persona (legacy/unscoped frames). */
+   *  without a persona (legacy/unscoped frames). Seeded from the role catalog's
+   *  role-level mood on load (`seedMoods` + `personaMoodSeed`). */
   moods: Record<string, string>;
   context: ChatContext;
   agents: AgentInfo[];
@@ -72,6 +72,12 @@ export interface AppStore {
   /** Record one role's new mood. `personaId` is the role the event named; "" keeps
    *  an unscoped/legacy frame in its own bucket. A null mood drops the bucket. */
   setMood: (mood: string | null, personaId?: string) => void;
+  /** Merge role-level moods read from `GET /personas` into the buckets (design/01
+   *  §2: mood follows the role, so the catalog is an authoritative seed). Values
+   *  already known are overwritten by the server's truth; buckets the seed does
+   *  not mention are left alone, so a WS frame that arrived first is never
+   *  cleared. Build the seed with `personaMoodSeed`. */
+  seedMoods: (seed: Record<string, string>) => void;
 
   /** Replace the session metadata list. */
   setSessions: (list: SessionMeta[]) => void;
@@ -166,6 +172,8 @@ export const useAppStore = create<AppStore>()(
           else delete moods[personaId];
           return { moods };
         }),
+      seedMoods: (seed) =>
+        set((s) => (Object.keys(seed).length ? { moods: { ...s.moods, ...seed } } : s)),
 
       setSessions: (list) =>
         set({
@@ -450,26 +458,6 @@ export const useAppStore = create<AppStore>()(
   )
 );
 
-/** The role the UI renders (design/22 §4.6): the active session's bound role,
- *  else the global default. THE single resolution point — the avatar, name,
- *  wallpaper, mood bucket and message labels all read it, so none of them can
- *  disagree about "who is speaking" (design/22 §5 risk row 1). */
-export function selectCurrentPersona(s: AppStore): PersonaRecord | null {
-  return resolveSessionPersona(s.activeSessionId, s.sessions, s.personas);
-}
-
-/** Subscribe to the active session's role. */
-export function useCurrentPersona(): PersonaRecord | null {
-  return useAppStore(selectCurrentPersona);
-}
-
-/** Subscribe to the active role's mood. `mood` frames are role-scoped and carry
- *  no sessionId, so a role's mood is only shown above its own sessions. */
-export function useCurrentMood(): string | null {
-  const personaId = useAppStore((s) => selectCurrentPersona(s)?.id ?? "");
-  return useAppStore((s) => (personaId ? s.moods[personaId] ?? null : null));
-}
-
 /** Convenience selector for the last streaming assistant message id. */
 export function lastStreamingMessage(s: AppStore): ChatMessage | undefined {
   const last = s.messages[s.messages.length - 1];
diff --git a/internal/services/gateway/admin.go b/internal/services/gateway/admin.go
index 1ae3a44..89666ae 100644
--- a/internal/services/gateway/admin.go
+++ b/internal/services/gateway/admin.go
@@ -107,9 +107,10 @@ type AdminBackthinkItem struct {
 	At           int64  `json:"at"`
 }
 
-// adminListPersonas lists persona summaries (admin read).
+// adminListPersonas lists persona summaries (admin read). It is the admin shape:
+// the role-level mood plus the `thinking` knobs the panel edits.
 func (s *Server) adminListPersonas(w http.ResponseWriter, r *http.Request) {
-	writeJSON(w, http.StatusOK, s.collectPersonas())
+	writeJSON(w, http.StatusOK, s.collectPersonas(true))
 }
 
 // adminListSessions lists the persistent chat-history sessions (main + sub) when a
diff --git a/internal/services/gateway/admin_write_personas_users.go b/internal/services/gateway/admin_write_personas_users.go
index c076f74..92282fb 100644
--- a/internal/services/gateway/admin_write_personas_users.go
+++ b/internal/services/gateway/admin_write_personas_users.go
@@ -100,7 +100,7 @@ func (s *Server) adminCreatePersona(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 	s.auditClaims(r, "persona.create", "ok")
-	writeJSON(w, http.StatusCreated, personaSummaryOf(p, characterFromRequest(req)))
+	writeJSON(w, http.StatusCreated, s.personaSummaryOf(p, characterFromRequest(req)))
 }
 
 // adminUpdatePersona edits an existing persona, persisting the YAML and
@@ -157,7 +157,7 @@ func (s *Server) adminUpdatePersona(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 	s.auditClaims(r, "persona.update", "ok")
-	writeJSON(w, http.StatusOK, personaSummaryOf(p, characterFromRequest(req)))
+	writeJSON(w, http.StatusOK, s.personaSummaryOf(p, characterFromRequest(req)))
 }
 
 // adminCreateUser answers honestly: there is no persistent user table and no
@@ -300,8 +300,11 @@ func characterFromRequest(req personaUpsertRequest) *personareg.Character {
 	return &personareg.Character{ID: req.ID, Name: req.Name, PersonaID: req.ID, Modes: modes}
 }
 
-// personaSummaryOf maps a persona+character to its wire summary.
-func personaSummaryOf(p *loader.Persona, c *personareg.Character) PersonaSummary {
+// personaSummaryOf maps a persona+character to its wire summary. It is the same
+// shape the admin list returns — the role-level mood plus the `thinking` block —
+// so a write response and a subsequent read describe the persona identically
+// (a client can trust either for backfill).
+func (s *Server) personaSummaryOf(p *loader.Persona, c *personareg.Character) PersonaSummary {
 	return PersonaSummary{
 		ID:        p.ID,
 		Name:      c.Name,
@@ -309,6 +312,8 @@ func personaSummaryOf(p *loader.Persona, c *personareg.Character) PersonaSummary
 		IsDefault: c.Default,
 		Mode:      firstMode(c.Modes),
 		MemoryNS:  p.MemoryNamespace(),
+		Mood:      s.moodOf(p.ID),
+		Thinking:  thinkingSummaryOf(p.Thinking, true),
 	}
 }
 
diff --git a/internal/services/gateway/contracts.go b/internal/services/gateway/contracts.go
index 7a95095..3e50b03 100644
--- a/internal/services/gateway/contracts.go
+++ b/internal/services/gateway/contracts.go
@@ -10,6 +10,7 @@ import (
 	"git.yeij.top/AskaEth/Cyrene_v2/internal/channel/session"
 	"git.yeij.top/AskaEth/Cyrene_v2/internal/config"
 	"git.yeij.top/AskaEth/Cyrene_v2/internal/iot"
+	"git.yeij.top/AskaEth/Cyrene_v2/internal/persona/emotion"
 	"git.yeij.top/AskaEth/Cyrene_v2/internal/persona/loader"
 	personareg "git.yeij.top/AskaEth/Cyrene_v2/internal/persona/registry"
 	"git.yeij.top/AskaEth/Cyrene_v2/internal/runtime/history"
@@ -74,6 +75,17 @@ type PersonaStore interface {
 	Persona(id string) (*loader.Persona, bool)
 }
 
+// PersonaMoodStore is the *optional* capability of a persona store that also owns
+// the per-persona emotion state (design/01 §2: emotion follows the persona). The
+// production *personareg.Registry implements it; the gateway reads a role's mood
+// through an assertion on this narrow interface so a store that only lists
+// personas (a test double, a future read-only catalog) keeps satisfying
+// PersonaStore without owning an emotion machine. When a store does not implement
+// it, a role's mood simply reads as "" rather than being invented.
+type PersonaMoodStore interface {
+	Emotions() *emotion.Manager
+}
+
 // MemoryStore lists memory entries. *runtime/memory.Store is the production
 // implementation. The gateway maps each MemoryItem to its wire summary.
 type MemoryStore interface {
diff --git a/internal/services/gateway/persona_read_test.go b/internal/services/gateway/persona_read_test.go
new file mode 100644
index 0000000..d395305
--- /dev/null
+++ b/internal/services/gateway/persona_read_test.go
@@ -0,0 +1,207 @@
+package gateway
+
+import (
+	"encoding/json"
+	"net/http"
+	"net/http/httptest"
+	"testing"
+
+	"git.yeij.top/AskaEth/Cyrene_v2/internal/auth"
+	"git.yeij.top/AskaEth/Cyrene_v2/internal/persona/emotion"
+	"git.yeij.top/AskaEth/Cyrene_v2/internal/persona/loader"
+	personareg "git.yeij.top/AskaEth/Cyrene_v2/internal/persona/registry"
+)
+
+// moodRegistry builds a real persona registry (the production PersonaStore, which
+// also owns each role's emotion machine) from the given personas, registering the
+// matching character too.
+func moodRegistry(t *testing.T, personas ...*loader.Persona) *personareg.Registry {
+	t.Helper()
+	reg := personareg.New()
+	for _, p := range personas {
+		if err := reg.RegisterPersona(p); err != nil {
+			t.Fatalf("RegisterPersona(%s): %v", p.ID, err)
+		}
+		if err := reg.RegisterCharacter(&personareg.Character{ID: p.ID, Name: p.Name, PersonaID: p.ID}); err != nil {
+			t.Fatalf("RegisterCharacter(%s): %v", p.ID, err)
+		}
+	}
+	return reg
+}
+
+// personaList fetches a persona list endpoint and returns each row as a raw map,
+// so the test can tell a missing key from a present null/false.
+func personaList(t *testing.T, ts *httptest.Server, jwt *auth.JWTService, path string) []map[string]any {
+	t.Helper()
+	resp, body := doReq(t, http.MethodGet, ts.URL+path, nil, mustSign(t, jwt))
+	if resp.StatusCode != http.StatusOK {
+		t.Fatalf("GET %s status = %d, want 200 (body=%s)", path, resp.StatusCode, body)
+	}
+	var rows []map[string]any
+	if err := json.Unmarshal(decodeBody(t, body)["data"], &rows); err != nil {
+		t.Fatalf("decode %s: %v", path, err)
+	}
+	return rows
+}
+
+// mustSign mints an owner token for the read endpoints.
+func mustSign(t *testing.T, jwt *auth.JWTService) string {
+	t.Helper()
+	return signAny(t, jwt, "acct", auth.RoleOwner)
+}
+
+// TestAdminListPersonasThinkingKeepShowToUserTriState pins the read-side contract
+// of the panel's `thinking` block: an unconfigured persona carries NO `thinking`
+// key (nil, not an all-zero object), an explicitly false `showToUser` stays
+// `false`, and an unset one stays `null` — never flattened into false, which is
+// the distinction the write side keeps with *bool.
+func TestAdminListPersonasThinkingKeepShowToUserTriState(t *testing.T) {
+	t.Parallel()
+
+	off := false
+	on := true
+	reg := moodRegistry(t,
+		&loader.Persona{ID: "plain", Name: "素面", Emotion: loader.EmotionParams{InitialState: emotion.Calm}},
+		&loader.Persona{ID: "full", Name: "全能", Thinking: loader.ThinkingParams{
+			BudgetTokens: 4096, Effort: "high", ShowToUser: &off, Mode: loader.ThinkingModeOff,
+		}},
+		&loader.Persona{ID: "budget-only", Name: "只配预算", Thinking: loader.ThinkingParams{BudgetTokens: 2048}},
+		&loader.Persona{ID: "forced-on", Name: "强制开", Thinking: loader.ThinkingParams{ShowToUser: &on, Mode: loader.ThinkingModeOn}},
+	)
+	_, ts, jwt := buildEnv(t, nil, Deps{Personas: reg})
+
+	rows := personaList(t, ts, jwt, "/api/v1/admin/personas")
+	byID := map[string]map[string]any{}
+	for _, row := range rows {
+		byID[row["id"].(string)] = row
+	}
+	if len(byID) != 4 {
+		t.Fatalf("rows = %d, want 4", len(byID))
+	}
+
+	if _, present := byID["plain"]["thinking"]; present {
+		t.Fatalf("unconfigured persona carries thinking = %#v, want the key absent", byID["plain"]["thinking"])
+	}
+
+	full, ok := byID["full"]["thinking"].(map[string]any)
+	if !ok {
+		t.Fatalf("full.thinking = %#v, want an object", byID["full"]["thinking"])
+	}
+	if full["budgetTokens"] != float64(4096) || full["effort"] != "high" || full["mode"] != "off" {
+		t.Fatalf("full.thinking = %#v, want 4096/high/off", full)
+	}
+	if show, ok := full["showToUser"].(bool); !ok || show {
+		t.Fatalf("full.thinking.showToUser = %#v, want the boolean false", full["showToUser"])
+	}
+
+	budgetOnly, ok := byID["budget-only"]["thinking"].(map[string]any)
+	if !ok {
+		t.Fatalf("budget-only.thinking = %#v, want an object", byID["budget-only"]["thinking"])
+	}
+	show, present := budgetOnly["showToUser"]
+	if !present {
+		t.Fatal("budget-only.thinking has no showToUser key, want an explicit null")
+	}
+	if show != nil {
+		t.Fatalf("budget-only.thinking.showToUser = %#v, want null (unconfigured)", show)
+	}
+
+	forced, ok := byID["forced-on"]["thinking"].(map[string]any)
+	if !ok {
+		t.Fatalf("forced-on.thinking = %#v, want an object", byID["forced-on"]["thinking"])
+	}
+	if show, ok := forced["showToUser"].(bool); !ok || !show {
+		t.Fatalf("forced-on.thinking.showToUser = %#v, want the boolean true", forced["showToUser"])
+	}
+	if forced["mode"] != "on" {
+		t.Fatalf("forced-on.thinking.mode = %#v, want on", forced["mode"])
+	}
+}
+
+// TestUserListPersonasReportsRoleMoodOnly pins the user-side shape: the role-level
+// mood rides along (the frontend seeds its badge from it), while the admin-only
+// thinking knobs stay out of the user contract.
+func TestUserListPersonasReportsRoleMoodOnly(t *testing.T) {
+	t.Parallel()
+
+	off := false
+	reg := moodRegistry(t,
+		&loader.Persona{ID: "xilian", Name: "昔涟", Emotion: loader.EmotionParams{InitialState: emotion.Happy},
+			Thinking: loader.ThinkingParams{BudgetTokens: 1024, ShowToUser: &off}},
+		&loader.Persona{ID: "yuki", Name: "雪"},
+	)
+	_, ts, jwt := buildEnv(t, nil, Deps{Personas: reg})
+
+	rows := personaList(t, ts, jwt, "/api/v1/personas")
+	byID := map[string]map[string]any{}
+	for _, row := range rows {
+		byID[row["id"].(string)] = row
+	}
+	if got := byID["xilian"]["mood"]; got != "happy" {
+		t.Fatalf("xilian mood = %#v, want happy", got)
+	}
+	if got := byID["yuki"]["mood"]; got != "" {
+		t.Fatalf("yuki mood = %#v, want the honest empty (no tracked state)", got)
+	}
+	for id, row := range byID {
+		if _, present := row["thinking"]; present {
+			t.Fatalf("%s carries thinking on the user-side list, want the key absent", id)
+		}
+	}
+}
+
+// TestPersonaMoodFollowsTheRole is the "mood is role-level, not per-session" rule:
+// it reads the live emotion machine, so a transition on one role's machine shows
+// up for that role and leaves every other role untouched, with no session input
+// anywhere in the path.
+func TestPersonaMoodFollowsTheRole(t *testing.T) {
+	t.Parallel()
+
+	reg := moodRegistry(t,
+		&loader.Persona{ID: "xilian", Name: "昔涟", Emotion: loader.EmotionParams{InitialState: emotion.Calm}},
+		&loader.Persona{ID: "yuki", Name: "雪", Emotion: loader.EmotionParams{InitialState: emotion.Calm}},
+	)
+	_, ts, jwt := buildEnv(t, nil, Deps{Personas: reg})
+
+	readMoods := func() (string, string) {
+		rows := personaList(t, ts, jwt, "/api/v1/personas")
+		byID := map[string]string{}
+		for _, row := range rows {
+			byID[row["id"].(string)], _ = row["mood"].(string)
+		}
+		return byID["xilian"], byID["yuki"]
+	}
+
+	if x, y := readMoods(); x != "calm" || y != "calm" {
+		t.Fatalf("initial moods = (%q, %q), want (calm, calm)", x, y)
+	}
+	// Move only 昔涟's machine (the machine a settled turn's observer would move).
+	if err := reg.Emotions().Transition("xilian", emotion.Happy); err != nil {
+		t.Fatalf("Transition: %v", err)
+	}
+	if x, y := readMoods(); x != "happy" || y != "calm" {
+		t.Fatalf("moods after one role moved = (%q, %q), want (happy, calm)", x, y)
+	}
+}
+
+// TestPersonaMoodEmptyWithoutEmotionStore is the honest degrade: a persona store
+// that does not own emotion (it only lists personas) reports an empty mood rather
+// than inventing one.
+func TestPersonaMoodEmptyWithoutEmotionStore(t *testing.T) {
+	t.Parallel()
+
+	reg := moodRegistry(t, &loader.Persona{ID: "xilian", Name: "昔涟", Emotion: loader.EmotionParams{InitialState: emotion.Happy}})
+	_, ts, jwt := buildEnv(t, nil, Deps{Personas: &stubPersonas{list: reg.List()}})
+
+	resp, body := doReq(t, http.MethodGet, ts.URL+"/api/v1/personas", nil, mustSign(t, jwt))
+	if resp.StatusCode != http.StatusOK {
+		t.Fatalf("status = %d, want 200 (body=%s)", resp.StatusCode, body)
+	}
+	var rows []map[string]any
+	if err := json.Unmarshal(decodeBody(t, body)["data"], &rows); err != nil {
+		t.Fatalf("decode: %v", err)
+	}
+	if len(rows) != 1 || rows[0]["mood"] != "" {
+		t.Fatalf("rows = %#v, want one row with an empty mood", rows)
+	}
+}
diff --git a/internal/services/gateway/rest.go b/internal/services/gateway/rest.go
index 423542d..4b5c81e 100644
--- a/internal/services/gateway/rest.go
+++ b/internal/services/gateway/rest.go
@@ -9,6 +9,7 @@ import (
 	"git.yeij.top/AskaEth/Cyrene_v2/internal/auth"
 	"git.yeij.top/AskaEth/Cyrene_v2/internal/channel/session"
 	apperr "git.yeij.top/AskaEth/Cyrene_v2/internal/errors"
+	"git.yeij.top/AskaEth/Cyrene_v2/internal/persona/loader"
 	"git.yeij.top/AskaEth/Cyrene_v2/internal/runtime/loop"
 	"git.yeij.top/AskaEth/Cyrene_v2/internal/runtime/model"
 )
@@ -27,6 +28,35 @@ type PersonaSummary struct {
 	Avatar    string `json:"avatar,omitempty"`
 	// ChatBackground holds per-orientation wallpaper; a role's own, never another's.
 	ChatBackground ChatBackgroundSummary `json:"chatBackground,omitempty"`
+	// Mood is the role's current emotion state (design/01 §2: emotion follows the
+	// role, never a session). "" means the role has no tracked emotion — an honest
+	// empty, never a fabricated default. Clients seed their mood badge from it so a
+	// refresh no longer flashes an empty mood.
+	Mood string `json:"mood"`
+	// Thinking carries the persona's optional reasoning/presentation block
+	// (design/01 §2.1). It is nil — and so absent from the JSON — when the persona
+	// configures none, mirroring the write side's "an omitted block keeps the
+	// stored one". Admin list only: these are model-call knobs, not user-UI state
+	// (the user list takes Mood and leaves the knobs to the panel).
+	Thinking *PersonaThinkingSummary `json:"thinking,omitempty"`
+}
+
+// PersonaThinkingSummary mirrors a persona's `thinking` block on the wire
+// (design/01 §2.1; provider mapping in design/04 §3.2).
+type PersonaThinkingSummary struct {
+	// BudgetTokens is the reasoning budget (Anthropic thinking.budget_tokens).
+	BudgetTokens int `json:"budgetTokens"`
+	// Effort is the provider-specific reasoning strength (reasoning_effort). The
+	// model layer validates it against the active provider's whitelist and WARNs
+	// when it is dropped — this side just reports what is stored.
+	Effort string `json:"effort"`
+	// ShowToUser is TRI-STATE and stays that way on the wire: null = not
+	// configured (thinking frames keep flowing — the pre-existing behavior),
+	// true/false = an explicit choice. A plain bool would flatten "unset" onto
+	// "off" and lose the distinction the write side keeps with *bool.
+	ShowToUser *bool `json:"showToUser"`
+	// Mode is the explicit hard switch: default | on | off ("" = default).
+	Mode string `json:"mode"`
 }
 
 // ChatBackgroundSummary mirrors the persona chatBackground on the wire.
@@ -224,13 +254,17 @@ func (s *Server) handleListSessions(w http.ResponseWriter, r *http.Request) {
 	writeJSON(w, http.StatusOK, out)
 }
 
-// handleListPersonas returns the personas (or [] when no store is wired).
+// handleListPersonas returns the personas (or [] when no store is wired). It is
+// the user-side shape: the role-level mood rides along, the admin-only thinking
+// knobs do not.
 func (s *Server) handleListPersonas(w http.ResponseWriter, r *http.Request) {
-	writeJSON(w, http.StatusOK, s.collectPersonas())
+	writeJSON(w, http.StatusOK, s.collectPersonas(false))
 }
 
 // collectPersonas returns a non-nil persona slice from the configured store.
-func (s *Server) collectPersonas() []PersonaSummary {
+// withThinking adds the admin-only `thinking` block; mood is always reported
+// because the user UI renders the badge.
+func (s *Server) collectPersonas(withThinking bool) []PersonaSummary {
 	out := make([]PersonaSummary, 0)
 	if s.personas == nil {
 		return out
@@ -246,6 +280,7 @@ func (s *Server) collectPersonas() []PersonaSummary {
 			Character: c.Name,
 			IsDefault: c.Default,
 			Mode:      firstMode(c.Modes),
+			Mood:      s.moodOf(id),
 		}
 		// Read this persona's own visual assets (avatar / chat background). Each
 		// role carries its own; a missing persona or unset visual yields empty,
@@ -260,12 +295,56 @@ func (s *Server) collectPersonas() []PersonaSummary {
 					Portrait:  p.Visual.ChatBackground.Portrait,
 				}
 			}
+			sum.Thinking = thinkingSummaryOf(p.Thinking, withThinking)
 		}
 		out = append(out, sum)
 	}
 	return out
 }
 
+// moodOf reports the role's current emotion state. Emotion is owned by the
+// persona store (design/01 §2), read through the optional PersonaMoodStore
+// capability; a store that does not track emotion, or a role with no machine,
+// reports "" instead of a made-up mood.
+func (s *Server) moodOf(id string) string {
+	store, ok := s.personas.(PersonaMoodStore)
+	if !ok {
+		return ""
+	}
+	emotions := store.Emotions()
+	if emotions == nil {
+		return ""
+	}
+	machine, _, ok := emotions.Get(id)
+	if !ok || machine == nil {
+		return ""
+	}
+	return string(machine.Current())
+}
+
+// thinkingSummaryOf maps a stored thinking block onto the wire. It returns nil
+// when the persona configures none — the key is then absent, so a client can tell
+// "not configured" from an explicit value (the read-side mirror of the write-side
+// rule that an omitted block keeps the stored one). include is false for the
+// user-side list, which does not carry these knobs.
+func thinkingSummaryOf(t loader.ThinkingParams, include bool) *PersonaThinkingSummary {
+	if !include || !thinkingConfigured(t) {
+		return nil
+	}
+	return &PersonaThinkingSummary{
+		BudgetTokens: t.BudgetTokens,
+		Effort:       t.Effort,
+		ShowToUser:   t.ShowToUser,
+		Mode:         t.Mode,
+	}
+}
+
+// thinkingConfigured reports whether any thinking knob is set. An empty block
+// must read as "not configured" rather than as an all-zero object.
+func thinkingConfigured(t loader.ThinkingParams) bool {
+	return t.BudgetTokens != 0 || t.Effort != "" || t.ShowToUser != nil || t.Mode != ""
+}
+
 // firstMode returns the first declared behavior mode, or "" when none are set.
 func firstMode(modes []string) string {
 	if len(modes) == 0 {