diff --git a/src/main/app/create-window.ts b/src/main/app/create-window.ts
index 7637a22b..c383e648 100644
--- a/src/main/app/create-window.ts
+++ b/src/main/app/create-window.ts
@@ -6,6 +6,8 @@ export interface CreateWindowOptions {
   preloadPath: string;
   rendererDist: string;
   devServerUrl?: string;
+  /** UI language for renderer strings; injected synchronously via argv. */
+  language: string;
 }
 
 export function createMainWindow(options: CreateWindowOptions): BrowserWindow {
@@ -27,6 +29,7 @@ export function createMainWindow(options: CreateWindowOptions): BrowserWindow {
       sandbox: true,
       webSecurity: true,
       allowRunningInsecureContent: false,
+      additionalArguments: [`--app-language=${options.language}`],
     },
   });
 
diff --git a/src/main/index.ts b/src/main/index.ts
index 1b6fbd96..670beed2 100644
--- a/src/main/index.ts
+++ b/src/main/index.ts
@@ -23,7 +23,8 @@ if (!app.requestSingleInstanceLock()) {
   // strings, date formatting) is only settable pre-ready, and it follows the
   // stored language preference instead of the OS locale.
   const connection = new DatabaseConnection(join(profileDir, "agentcompany.db"));
-  app.commandLine.appendSwitch("lang", storedLanguage(connection.db) === "zh" ? "zh-CN" : "en-US");
+  const language = storedLanguage(connection.db);
+  app.commandLine.appendSwitch("lang", language === "zh" ? "zh-CN" : "en-US");
 
   app.whenReady().then(() => {
     connection.transaction(() => recoverInterruptedWork(connection.db));
@@ -31,6 +32,7 @@ if (!app.requestSingleInstanceLock()) {
       preloadPath: join(__dirname, "../preload/index.js"),
       rendererDist: join(__dirname, "../renderer"),
       devServerUrl: process.env.ELECTRON_RENDERER_URL,
+      language,
     });
 
     registerIpcHandlers({
diff --git a/src/preload/index.ts b/src/preload/index.ts
index cb3eccc7..6a0d9b9e 100644
--- a/src/preload/index.ts
+++ b/src/preload/index.ts
@@ -94,6 +94,7 @@ const api: DesktopApi = {
     return () => ipcRenderer.removeListener(IPC_CHANNELS.rendererEvent, listener);
   },
   platform: process.platform as DesktopApi["platform"],
+  language: (process.argv.find((arg) => arg.startsWith("--app-language="))?.slice("--app-language=".length) === "zh" ? "zh" : "en") as DesktopApi["language"],
   windowMinimize: () => invoke<void>(IPC_CHANNELS.windowMinimize),
   windowMaximize: () => invoke<void>(IPC_CHANNELS.windowMaximize),
   windowClose: () => invoke<void>(IPC_CHANNELS.windowClose),
diff --git a/src/renderer/src/app/Onboarding.tsx b/src/renderer/src/app/Onboarding.tsx
index facd6e07..73d39a24 100644
--- a/src/renderer/src/app/Onboarding.tsx
+++ b/src/renderer/src/app/Onboarding.tsx
@@ -8,6 +8,7 @@ import { Button, Field, Icon, IconButton, Pill } from "../shared/ui";
 import type { SnapshotActions } from "./useSnapshot";
 import { ProviderStep } from "./OnboardingProviderStep";
 import { ConnectorsStep } from "./OnboardingConnectorsStep";
+import { t } from "../i18n/i18n";
 
 type Step = "welcome" | "provider" | "company" | "mode" | "mission" | "connectors";
 
@@ -26,12 +27,12 @@ export interface Draft {
 }
 
 const STEPS: Array<{ id: Step; label: string }> = [
-  { id: "welcome", label: "Start" },
-  { id: "provider", label: "Provider" },
-  { id: "company", label: "Company" },
-  { id: "mode", label: "Mode" },
-  { id: "mission", label: "Goal" },
-  { id: "connectors", label: "Connectors" },
+  { id: "welcome", label: t("Start") },
+  { id: "provider", label: t("Provider") },
+  { id: "company", label: t("Company") },
+  { id: "mode", label: t("Mode") },
+  { id: "mission", label: t("Goal") },
+  { id: "connectors", label: t("Connectors") },
 ];
 
 export function Onboarding({
@@ -133,9 +134,9 @@ export function Onboarding({
       <header className="onboarding-titlebar">
         {!isMac && (
           <span className="window-controls">
-            <IconButton icon="minus" label="Minimize" onClick={() => void window.agentCompany.windowMinimize()} />
-            <IconButton icon="grid" label="Maximize" onClick={() => void window.agentCompany.windowMaximize()} />
-            <IconButton icon="x" label="Close" onClick={() => void window.agentCompany.windowClose()} />
+            <IconButton icon="minus" label={t("Minimize")} onClick={() => void window.agentCompany.windowMinimize()} />
+            <IconButton icon="grid" label={t("Maximize")} onClick={() => void window.agentCompany.windowMaximize()} />
+            <IconButton icon="x" label={t("Close")} onClick={() => void window.agentCompany.windowClose()} />
           </span>
         )}
       </header>
@@ -147,13 +148,13 @@ export function Onboarding({
             <div style={{ fontWeight: 540 }}>AgentCompany</div>
             {onCancel && step !== "connectors" && (
               <button type="button" className="button ghost" style={{ marginLeft: "auto" }} onClick={onCancel}>
-                Cancel
+                {t("Cancel")}
               </button>
             )}
           </div>
-          <h1 className="page-h1" style={{ fontSize: 24, marginTop: 32, letterSpacing: "-0.02em" }}>Start your AI company.</h1>
+          <h1 className="page-h1" style={{ fontSize: 24, marginTop: 32, letterSpacing: "-0.02em" }}>{t("Start your AI company.")}</h1>
           <p className="page-sub" style={{ maxWidth: 460, fontSize: 14, lineHeight: 1.55 }}>
-            Stand up the workspace, bind the provider, and queue the first operating loop.
+            {t("Stand up the workspace, bind the provider, and queue the first operating loop.")}
           </p>
           <div className="onboarding-steps">
             {STEPS.map((entry) => (
@@ -162,14 +163,14 @@ export function Onboarding({
           </div>
         </div>
         <div className="card" style={{ maxWidth: 460 }}>
-          <div className="card-label" style={{ marginBottom: 10 }}>Runtime selected</div>
+          <div className="card-label" style={{ marginBottom: 10 }}>{t("Runtime selected")}</div>
           <div className="row" style={{ gap: 10 }}>
             <Icon name="bot" size={18} />
             <strong style={{ fontSize: 14 }}>{selectedProvider.label}</strong>
             {draft.providerModel && <Pill tone="violet">{draft.providerModel}</Pill>}
           </div>
           <div style={{ marginTop: 10, fontSize: 12, color: "var(--text-3)" }}>
-            We never embed the key in the build. Credentials encrypt locally via OS-protected storage.
+            {t("We never embed the key in the build. Credentials encrypt locally via OS-protected storage.")}
           </div>
         </div>
       </section>
@@ -233,19 +234,18 @@ interface StepProps {
 function WelcomeStep({ onNext }: { onNext: () => void }) {
   return (
     <div className="form-grid">
-      <h2 className="page-h1">Welcome</h2>
+      <h2 className="page-h1">{t("Welcome")}</h2>
       <p style={{ color: "var(--text-2)", fontSize: 14, lineHeight: 1.55 }}>
-        AgentCompany sets up your operating loop in six steps. Bring an API key, pick a runtime
-        for the founding CEO, and we'll wire up the first goal, project, and task.
+        {t("AgentCompany sets up your operating loop in six steps. Bring an API key, pick a runtime for the founding CEO, and we'll wire up the first goal, project, and task.")}
       </p>
       <ul style={{ paddingLeft: 20, color: "var(--text-2)", lineHeight: 1.8, margin: 0, fontSize: 14 }}>
-        <li>Connect one model provider (OpenAI, Anthropic, xAI, or Groq).</li>
-        <li>Name the company and the human board chair.</li>
-        <li>Pick execution mode and bind the workspace path.</li>
-        <li>State the first goal — we kick off the rest.</li>
+        <li>{t("Connect one model provider (OpenAI, Anthropic, xAI, or Groq).")}</li>
+        <li>{t("Name the company and the human board chair.")}</li>
+        <li>{t("Pick execution mode and bind the workspace path.")}</li>
+        <li>{t("State the first goal — we kick off the rest.")}</li>
       </ul>
       <div className="modal-actions" style={{ marginTop: 4 }}>
-        <Button tone="primary" onClick={onNext}>Get started</Button>
+        <Button tone="primary" onClick={onNext}>{t("Get started")}</Button>
       </div>
     </div>
   );
@@ -259,20 +259,20 @@ function CompanyStep({ draft, onChange, onBack, onNext }: StepProps) {
   };
   return (
     <div className="form-grid">
-      <h2 className="page-h1">Company</h2>
-      <Field label="Company name">
+      <h2 className="page-h1">{t("Company")}</h2>
+      <Field label={t("Company name")}>
         <input className="input" value={draft.companyName} onChange={(event) => onChange({ companyName: event.target.value })} autoFocus required />
       </Field>
-      <Field label="Your name">
+      <Field label={t("Your name")}>
         <input className="input" value={draft.employeeName} onChange={(event) => onChange({ employeeName: event.target.value })} required />
       </Field>
-      <Field label="Description">
+      <Field label={t("Description")}>
         <textarea className="input" value={draft.companyDescription} onChange={(event) => onChange({ companyDescription: event.target.value })} required />
       </Field>
-      <Field label="Workspace path (optional)">
+      <Field label={t("Workspace path (optional)")}>
         <div className="row" style={{ gap: 6 }}>
           <input className="input" value={draft.workspacePath} onChange={(event) => onChange({ workspacePath: event.target.value })} />
-          <Button tone="ghost" onClick={chooseWorkspace}><Icon name="folder" size={16} /> Choose</Button>
+          <Button tone="ghost" onClick={chooseWorkspace}><Icon name="folder" size={16} /> {t("Choose")}</Button>
         </div>
       </Field>
       <Actions onBack={onBack} onNext={onNext} />
@@ -283,17 +283,17 @@ function CompanyStep({ draft, onChange, onBack, onNext }: StepProps) {
 function ModeStep({ draft, onChange, onBack, onNext }: StepProps) {
   return (
     <div className="form-grid">
-      <h2 className="page-h1">Mode</h2>
-      <p style={{ color: "var(--text-3)", fontSize: 14 }}>How autonomous should the CEO be?</p>
+      <h2 className="page-h1">{t("Mode")}</h2>
+      <p style={{ color: "var(--text-3)", fontSize: 14 }}>{t("How autonomous should the CEO be?")}</p>
       <ModeCard
-        title="AI CEO"
-        description="Agents auto-approve hires up to the budget envelope and ship work that clears policy."
+        title={t("AI CEO")}
+        description={t("Agents auto-approve hires up to the budget envelope and ship work that clears policy.")}
         active={draft.executionMode === "ai_ceo"}
         onClick={() => onChange({ executionMode: "ai_ceo" })}
       />
       <ModeCard
-        title="AI Co-Founder"
-        description="Hires need your stamp; deliverables route through review before shipping."
+        title={t("AI Co-Founder")}
+        description={t("Hires need your stamp; deliverables route through review before shipping.")}
         active={draft.executionMode === "ai_cofounder"}
         onClick={() => onChange({ executionMode: "ai_cofounder" })}
       />
@@ -310,16 +310,16 @@ function MissionStep({
 }: Omit<StepProps, "onNext"> & { submitting: boolean }) {
   return (
     <div className="form-grid">
-      <h2 className="page-h1">Goal</h2>
-      <Field label="Goal">
+      <h2 className="page-h1">{t("Goal")}</h2>
+      <Field label={t("Goal")}>
         <input className="input" value={draft.goalTitle} onChange={(event) => onChange({ goalTitle: event.target.value })} required />
       </Field>
-      <Field label="Acceptance criteria">
+      <Field label={t("Acceptance criteria")}>
         <textarea className="input" value={draft.goalDescription} onChange={(event) => onChange({ goalDescription: event.target.value })} required />
       </Field>
       <div className="modal-actions" style={{ marginTop: 4 }}>
-        <Button onClick={onBack}>Back</Button>
-        <Button tone="primary" type="submit" disabled={submitting}>{submitting ? "Launching…" : "Launch"}</Button>
+        <Button onClick={onBack}>{t("Back")}</Button>
+        <Button tone="primary" type="submit" disabled={submitting}>{submitting ? t("Launching…") : t("Launch")}</Button>
       </div>
     </div>
   );
@@ -347,8 +347,8 @@ function ModeCard({
 function Actions({ onBack, onNext }: { onBack: () => void; onNext: () => void }) {
   return (
     <div className="modal-actions" style={{ marginTop: 4 }}>
-      <Button onClick={onBack}>Back</Button>
-      <Button tone="primary" onClick={onNext}>Continue</Button>
+      <Button onClick={onBack}>{t("Back")}</Button>
+      <Button tone="primary" onClick={onNext}>{t("Continue")}</Button>
     </div>
   );
 }
@@ -360,24 +360,24 @@ function requireProvider(providers: ProviderCatalogEntry[], key: string): Provid
 }
 
 function validateProvider(draft: Draft, providers: ProviderCatalogEntry[]): string | null {
-  if (!draft.providerKey) return "Pick a provider.";
+  if (!draft.providerKey) return t("Pick a provider.");
   const selected = providers.find((entry) => entry.key === draft.providerKey);
-  if (!selected) return "Provider is no longer available.";
-  if (selected.customEndpoint && !draft.providerBaseUrl.trim()) return "Base URL is required.";
+  if (!selected) return t("Provider is no longer available.");
+  if (selected.customEndpoint && !draft.providerBaseUrl.trim()) return t("Base URL is required.");
   if (!draft.providerSecret.trim()) {
-    return selected.authType === "api_key" || selected.customEndpoint ? "API key is required." : "Access token is required.";
+    return selected.authType === "api_key" || selected.customEndpoint ? t("API key is required.") : t("Access token is required.");
   }
-  if (!draft.providerModel.trim()) return "Model is required.";
+  if (!draft.providerModel.trim()) return t("Model is required.");
   return null;
 }
 
 function validateCompany(draft: Draft): string | null {
-  if (!draft.companyName.trim()) return "Company name is required.";
-  if (!draft.employeeName.trim()) return "Your name is required.";
-  if (!draft.companyDescription.trim()) return "Description is required.";
+  if (!draft.companyName.trim()) return t("Company name is required.");
+  if (!draft.employeeName.trim()) return t("Your name is required.");
+  if (!draft.companyDescription.trim()) return t("Description is required.");
   return null;
 }
 
 function validateAll(draft: Draft, providers: ProviderCatalogEntry[]): string | null {
-  return validateProvider(draft, providers) ?? validateCompany(draft) ?? (!draft.goalTitle.trim() ? "Goal is required." : null);
+  return validateProvider(draft, providers) ?? validateCompany(draft) ?? (!draft.goalTitle.trim() ? t("Goal is required.") : null);
 }
diff --git a/src/renderer/src/app/OnboardingConnectorsStep.tsx b/src/renderer/src/app/OnboardingConnectorsStep.tsx
index 7bb4ba36..badbb3e3 100644
--- a/src/renderer/src/app/OnboardingConnectorsStep.tsx
+++ b/src/renderer/src/app/OnboardingConnectorsStep.tsx
@@ -4,6 +4,7 @@ import { Button } from "../shared/ui";
 import { ToolkitCatalog } from "../pages/connectors/ToolkitCatalog";
 import { useConnectorCatalog } from "../pages/connectors/useConnectorCatalog";
 import type { SnapshotActions } from "./useSnapshot";
+import { t } from "../i18n/i18n";
 
 /**
  * The post-launch onboarding step: the company exists, so connections can be
@@ -34,7 +35,7 @@ export function ConnectorsStep({
 
   return (
     <div className="form-grid">
-      <h2 className="page-h1">Connectors</h2>
+      <h2 className="page-h1">{t("Connectors")}</h2>
       {catalog.phase === "error" && (
         <div className="row" style={{ gap: 10 }}>
           <span
@@ -50,7 +51,7 @@ export function ConnectorsStep({
           >
             {catalog.message}
           </span>
-          <Button size="small" onClick={retry}>Retry</Button>
+          <Button size="small" onClick={retry}>{t("Retry")}</Button>
         </div>
       )}
       {catalog.phase === "ready" && (
@@ -77,7 +78,7 @@ export function ConnectorsStep({
         </div>
       )}
       <div className="modal-actions" style={{ marginTop: 4 }}>
-        <Button tone="primary" onClick={onFinish}>Finish</Button>
+        <Button tone="primary" onClick={onFinish}>{t("Finish")}</Button>
       </div>
     </div>
   );
diff --git a/src/renderer/src/app/OnboardingProviderStep.tsx b/src/renderer/src/app/OnboardingProviderStep.tsx
index 7f7df3ea..be442809 100644
--- a/src/renderer/src/app/OnboardingProviderStep.tsx
+++ b/src/renderer/src/app/OnboardingProviderStep.tsx
@@ -3,6 +3,7 @@ import type { ProviderCatalogEntry } from "../../../shared/domain";
 import { ProviderOAuthConnect } from "../shared/ProviderOAuthConnect";
 import { Button, Field, Pill } from "../shared/ui";
 import type { Draft } from "./Onboarding";
+import { t } from "../i18n/i18n";
 
 export function ProviderStep({
   providers,
@@ -22,9 +23,9 @@ export function ProviderStep({
 
   return (
     <div className="form-grid">
-      <h2 className="page-h1">Provider</h2>
+      <h2 className="page-h1">{t("Provider")}</h2>
       <p style={{ color: "var(--text-3)", fontSize: 14 }}>
-        Pick the runtime for the founding CEO. You can attach more providers in Settings later.
+        {t("Pick the runtime for the founding CEO. You can attach more providers in Settings later.")}
       </p>
       <div className="option-grid">
         {providers.map((provider) => (
@@ -123,14 +124,14 @@ function ProviderCredentialFields({
         />
       ) : isCustom ? (
         <>
-          <Field label="Base URL">
+          <Field label={t("Base URL")}>
             <input
               className="input"
               value={draft.providerBaseUrl}
               onChange={(event) => onChange({ providerBaseUrl: event.target.value })}
             />
           </Field>
-          <Field label="API key">
+          <Field label={t("API key")}>
             <input
               className="input"
               type="password"
@@ -141,7 +142,7 @@ function ProviderCredentialFields({
           </Field>
         </>
       ) : (
-        <Field label="API key">
+        <Field label={t("API key")}>
           <input
             className="input"
             type="password"
@@ -153,12 +154,12 @@ function ProviderCredentialFields({
       )}
       {!isOAuthLike && live && (
         <Button tone="ghost" onClick={loadTypedModels} disabled={!hasCredential || loading}>
-          {loading ? "Getting models..." : fetched ? "Reload models" : "Get models"}
+          {loading ? t("Getting models...") : fetched ? t("Reload models") : t("Get models")}
         </Button>
       )}
       {loadError && <div style={{ color: "var(--red)", fontSize: 12 }}>{loadError}</div>}
       {(hasCredential || isCustom) && (
-        <Field label="Model">
+        <Field label={t("Model")}>
           {fetched || showCuratedList ? (
             <select
               className="input"
@@ -185,16 +186,16 @@ function ProviderCredentialFields({
 function Actions({ onBack, onNext }: { onBack: () => void; onNext: () => void }) {
   return (
     <div className="modal-actions" style={{ marginTop: 4 }}>
-      <Button onClick={onBack}>Back</Button>
-      <Button tone="primary" onClick={onNext}>Continue</Button>
+      <Button onClick={onBack}>{t("Back")}</Button>
+      <Button tone="primary" onClick={onNext}>{t("Continue")}</Button>
     </div>
   );
 }
 
 function authBadge(authType: string): string {
-  if (authType === "api_key") return "API key";
-  if (authType === "oauth_pkce") return "OAuth";
-  if (authType === "account_subscription") return "Account";
-  if (authType === "cloud") return "Cloud";
+  if (authType === "api_key") return t("API key");
+  if (authType === "oauth_pkce") return t("OAuth");
+  if (authType === "account_subscription") return t("Account");
+  if (authType === "cloud") return t("Cloud");
   return authType;
 }
diff --git a/src/renderer/src/i18n/i18n.ts b/src/renderer/src/i18n/i18n.ts
new file mode 100644
index 00000000..b9202160
--- /dev/null
+++ b/src/renderer/src/i18n/i18n.ts
@@ -0,0 +1,17 @@
+import { zh } from "./zh";
+
+/**
+ * UI strings ship in English and the English source string is the key —
+ * the Chinese dictionary maps it to its translation, and a missing entry
+ * renders the English source. The language is fixed per process (changing
+ * it relaunches the app), injected synchronously through preload argv so
+ * the first paint is already in the right language.
+ */
+const language: "en" | "zh" =
+  typeof window !== "undefined" && window.agentCompany ? window.agentCompany.language : "en";
+
+export function t(source: string, vars?: Record<string, string | number>): string {
+  const template = language === "zh" ? zh[source] ?? source : source;
+  if (!vars) return template;
+  return template.replace(/\{(\w+)\}/g, (_match: string, name: string) => String(vars[name] ?? ""));
+}
diff --git a/src/renderer/src/i18n/zh.ts b/src/renderer/src/i18n/zh.ts
new file mode 100644
index 00000000..1fb320dc
--- /dev/null
+++ b/src/renderer/src/i18n/zh.ts
@@ -0,0 +1,440 @@
+/**
+ * Chinese UI strings, keyed by the English source string. Keep {token}
+ * placeholders intact — t() substitutes them after lookup. The i18n coverage
+ * test fails when a t() call site has no entry here.
+ */
+export const zh: Record<string, string> = {
+  "(edited)": "（已编辑）",
+  "AI CEO": "AI CEO",
+  "AI Co-Founder": "AI 联合创始人",
+  "AI → AI": "AI → AI",
+  "API key": "API 密钥",
+  "API key is required.": "请填写 API 密钥。",
+  "Acceptance criteria": "验收标准",
+  "Access": "权限",
+  "Access & activity": "权限与活动",
+  "Access token is required.": "请填写访问令牌。",
+  "Account": "账户",
+  "Action": "操作",
+  "Actions": "操作",
+  "Actions for {name}": "对 {name} 的操作",
+  "Active": "活跃",
+  "Activity": "活动",
+  "Ad-hoc": "临时",
+  "Add": "添加",
+  "Add task": "添加任务",
+  "Add workspace": "添加工作区",
+  "Advance": "推进",
+  "Advanced": "高级",
+  "Agent": "智能体",
+  "Agent could not be reached": "无法连接到智能体",
+  "Agent runs": "智能体运行",
+  "Agent workload": "智能体工作量",
+  "Agent {name}": "智能体 {name}",
+  "AgentCompany sets up your operating loop in six steps. Bring an API key, pick a runtime for the founding CEO, and we'll wire up the first goal, project, and task.":
+    "AgentCompany 用六步搭建你的运营循环：带上 API 密钥，为创始 CEO 选择运行时，我们会接好第一个目标、项目和任务。",
+  "Agents": "智能体",
+  "Agents auto-approve hires up to the budget envelope and ship work that clears policy.": "智能体在预算范围内自动批准招聘，并交付通过策略检查的工作。",
+  "Agents only": "仅智能体",
+  "All": "全部",
+  "All agents, work, chats, and files are permanently removed.": "所有智能体、工作、聊天和文件将被永久删除。",
+  "All assignees": "全部负责人",
+  "All files": "全部文件",
+  "All priorities": "全部优先级",
+  "All risk": "全部风险",
+  "All runs": "全部运行",
+  "Allow": "允许",
+  "Appearance": "外观",
+  "Approval": "审批",
+  "Approval needed": "需要审批",
+  "Approvals": "审批",
+  "Approve": "批准",
+  "Approve all low risk": "批准全部低风险",
+  "Approved": "已批准",
+  "Approved (7d)": "已批准（7 天）",
+  "Assignee": "负责人",
+  "Attach file": "附加文件",
+  "Auto-approve hires": "自动批准招聘",
+  "Available": "空闲",
+  "Back": "返回",
+  "Background": "后台",
+  "Backlog": "待办",
+  "Base URL": "基础 URL",
+  "Base URL is required.": "请填写基础 URL。",
+  "Billing": "用量账单",
+  "Blocked": "受阻",
+  "Board": "看板",
+  "Browse": "浏览",
+  "Budget": "预算",
+  "Budget cap": "预算上限",
+  "Budget utilization": "预算使用率",
+  "Busy": "忙碌",
+  "By agent": "按智能体",
+  "CEO OFFICE": "CEO 办公室",
+  "Cancel": "取消",
+  "Catalog": "目录",
+  "Check": "检查",
+  "Choose": "选择",
+  "Clean": "正常",
+  "Close": "关闭",
+  "Close agent details": "关闭智能体详情",
+  "Cloud": "云端",
+  "Commands": "命令",
+  "Company": "公司",
+  "Company name": "公司名称",
+  "Company name is required.": "请填写公司名称。",
+  "Completed": "已完成",
+  "Connect": "连接",
+  "Connect a provider to run": "连接模型服务后可运行",
+  "Connect one model provider (OpenAI, Anthropic, xAI, or Groq).": "连接一个模型服务商（OpenAI、Anthropic、xAI 或 Groq）。",
+  "Connect provider": "连接服务商",
+  "Connect {label}": "连接 {label}",
+  "Connected": "已连接",
+  "Connectors": "连接器",
+  "Context": "上下文",
+  "Continue": "继续",
+  "Cost by agent": "按智能体成本",
+  "Create": "创建",
+  "Created": "创建时间",
+  "Credential": "凭证",
+  "Dark": "深色",
+  "Data policy": "数据策略",
+  "Decision notes": "决策备注",
+  "Decline": "拒绝",
+  "Declined": "已拒绝",
+  "Declined (7d)": "已拒绝（7 天）",
+  "Default model": "默认模型",
+  "Delete": "删除",
+  "Delete message": "删除消息",
+  "Delete organization": "删除组织",
+  "Delete {name} connection": "删除 {name} 连接",
+  "Delete “{name}”?": "删除“{name}”？",
+  "Department": "部门",
+  "Deployment / model id": "部署 / 模型 ID",
+  "Description": "描述",
+  "Description is required.": "请填写描述。",
+  "Direct": "私信",
+  "Director": "总监",
+  "Directory path": "目录路径",
+  "Division": "事业部",
+  "Done": "已完成",
+  "Duration": "耗时",
+  "Edit": "编辑",
+  "Edit message": "编辑消息",
+  "Edit task": "编辑任务",
+  "Edit {name}": "编辑 {name}",
+  "Employee": "成员",
+  "Employees": "成员",
+  "Error": "错误",
+  "Errors": "错误",
+  "Events": "事件",
+  "Executive": "高管",
+  "Failed": "失败",
+  "Failures (30d)": "失败（30 天）",
+  "File": "文件",
+  "Files": "文件",
+  "Filter": "筛选",
+  "Filter files": "筛选文件",
+  "Filter risk": "筛选风险",
+  "Filter tasks": "筛选任务",
+  "Finish": "完成",
+  "Foreground": "前台",
+  "General": "通用",
+  "Get models": "获取模型",
+  "Get started": "开始使用",
+  "Getting models...": "正在获取模型…",
+  "Goal": "目标",
+  "Goal is required.": "请填写目标。",
+  "Good afternoon": "下午好",
+  "Good evening": "晚上好",
+  "Good morning": "早上好",
+  "Grid": "网格",
+  "Healthy": "健康",
+  "Held by": "持有者",
+  "High": "高",
+  "High risk": "高风险",
+  "Hire": "招聘",
+  "Hire agent": "招聘智能体",
+  "Hires need your stamp; deliverables route through review before shipping.": "招聘需要你签字确认；交付物先经审核再发布。",
+  "Hires require approval": "招聘需审批",
+  "Hiring pipeline": "招聘进展",
+  "Home": "首页",
+  "How autonomous should the CEO be?": "CEO 的自主程度？",
+  "Humans only": "仅人类",
+  "Idle": "空闲",
+  "Import": "导入",
+  "Import skill": "导入技能",
+  "In progress": "进行中",
+  "In review": "审核中",
+  "Input": "输入",
+  "Input chars": "输入字符",
+  "Instructions": "指令",
+  "Language": "语言",
+  "Launch": "启动",
+  "Launching…": "启动中…",
+  "Lead": "负责人",
+  "Lead agent": "负责智能体",
+  "Library": "库",
+  "Light": "浅色",
+  "List": "列表",
+  "Loading models...": "正在加载模型…",
+  "Local path": "本地路径",
+  "Low": "低",
+  "Low risk": "低风险",
+  "MEETING ROOM": "会议室",
+  "Manage": "管理",
+  "Manager": "经理",
+  "Maximize": "最大化",
+  "Median time": "中位耗时",
+  "Medium": "中",
+  "Medium risk": "中风险",
+  "Member": "成员",
+  "Message": "消息",
+  "Message deleted": "消息已删除",
+  "Messages": "消息",
+  "Minimize": "最小化",
+  "Mission": "使命",
+  "Mode": "模式",
+  "Model": "模型",
+  "Model is required.": "请填写模型。",
+  "Modified": "修改时间",
+  "Monthly allocation": "每月配额",
+  "Monthly budget": "每月预算",
+  "Monthly limit": "每月上限",
+  "Name": "名称",
+  "Name the company and the human board chair.": "命名公司与人类董事会主席。",
+  "Never run": "从未运行",
+  "New goal": "新目标",
+  "New organization": "新组织",
+  "New project": "新项目",
+  "New space": "新空间",
+  "New task": "新任务",
+  "Next month": "下个月",
+  "No budget cap set": "未设置预算上限",
+  "No events": "暂无事件",
+  "No messages yet": "还没有消息",
+  "No providers connected": "未连接任何服务商",
+  "No runs": "暂无运行",
+  "No runs yet": "还没有运行记录",
+  "No subtasks": "暂无子任务",
+  "No tests": "无测试",
+  "None": "无",
+  "Normal": "普通",
+  "OAuth": "OAuth",
+  "Office": "办公室",
+  "OnCall": "值班",
+  "Open": "打开",
+  "Open chat": "打开聊天",
+  "Open {name}": "打开 {name}",
+  "Open {title}": "打开 {title}",
+  "Opening…": "打开中…",
+  "Org": "组织",
+  "Organization": "组织",
+  "Organizations": "组织",
+  "Output": "输出",
+  "Output chars": "输出字符",
+  "Overview": "概览",
+  "Owner": "负责人",
+  "Owner agent": "负责智能体",
+  "Parent task": "父任务",
+  "Pending": "待处理",
+  "Pending approval": "待审批",
+  "Pick a provider.": "请选择服务商。",
+  "Pick execution mode and bind the workspace path.": "选择执行模式并绑定工作区路径。",
+  "Pick the runtime for the founding CEO. You can attach more providers in Settings later.": "为创始 CEO 选择运行时；之后可在设置中接入更多服务商。",
+  "Pin": "置顶",
+  "Pinned": "已置顶",
+  "Pod": "小组",
+  "Post": "帖子",
+  "Previous month": "上个月",
+  "Primary": "主要",
+  "Priority": "优先级",
+  "Project": "项目",
+  "Project / resource": "项目 / 资源",
+  "Projects": "项目",
+  "Prompt": "提示词",
+  "Provider": "服务商",
+  "Provider activity (30d)": "服务商活动（30 天）",
+  "Provider is no longer available.": "该服务商已不可用。",
+  "Provider request": "服务商请求",
+  "Providers": "服务商",
+  "Quarter goal": "季度目标",
+  "Queued": "排队中",
+  "RESTROOM": "洗手间",
+  "Recent": "最近",
+  "Recent messages": "最近消息",
+  "Recently decided": "最近已决",
+  "Reconnect": "重新连接",
+  "Refresh models": "刷新模型",
+  "Region": "区域",
+  "Rejected": "已驳回",
+  "Reload models": "重新加载模型",
+  "Remove attachment": "移除附件",
+  "Reporting lines": "汇报关系",
+  "Request ID": "请求 ID",
+  "Request instructions": "请求指令",
+  "Request prompt": "请求提示词",
+  "Request provider": "请求服务商",
+  "Request workspace": "请求工作区",
+  "Requested": "请求时间",
+  "Requested by": "请求人",
+  "Requested by {requester}": "由 {requester} 请求",
+  "Requests": "请求",
+  "Requests (30d)": "请求（30 天）",
+  "Requires workspace access": "需要工作区访问权限",
+  "Reset zoom": "重置缩放",
+  "Response": "响应",
+  "Restricted": "受限",
+  "Retry": "重试",
+  "Reviews deliverables": "交付物需审核",
+  "Revoke": "撤销",
+  "Risk": "风险",
+  "Role": "角色",
+  "Roster": "名册",
+  "Run": "运行",
+  "Run activity": "运行活动",
+  "Run tests": "运行测试",
+  "Run {title}": "运行 {title}",
+  "Running": "运行中",
+  "Runs": "运行",
+  "Runtime policy": "运行策略",
+  "Runtime selected": "已选运行时",
+  "SNACK BAR": "茶水间",
+  "Save": "保存",
+  "Save {label} policy": "保存 {label} 策略",
+  "Scan status": "扫描状态",
+  "Scope": "范围",
+  "Search": "搜索",
+  "Search connectors": "搜索连接器",
+  "Search filter": "搜索筛选",
+  "Search messages": "搜索消息",
+  "Search query": "搜索关键词",
+  "Search runs": "搜索运行",
+  "Select a run": "选择一次运行",
+  "Send": "发送",
+  "Seniority": "职级",
+  "Set the first goal for {organizationName}.": "为 {organizationName} 设定第一个目标。",
+  "Settings": "设置",
+  "Ships without review": "无需审核直接发布",
+  "Show earlier messages": "显示更早的消息",
+  "Size": "大小",
+  "Skill": "技能",
+  "Skills": "技能",
+  "Social": "社交",
+  "Source": "来源",
+  "Space": "空间",
+  "Spaces": "空间",
+  "Staff": "员工",
+  "Stand up the workspace, bind the provider, and queue the first operating loop.": "搭建工作区、绑定模型服务，并排入第一个运营循环。",
+  "Standard retention": "标准保留",
+  "Start": "开始",
+  "Start your AI company.": "开启你的 AI 公司。",
+  "Started": "开始时间",
+  "State": "状态",
+  "State the first goal — we kick off the rest.": "写下第一个目标，其余交给我们启动。",
+  "Status": "状态",
+  "Subtasks": "子任务",
+  "Success rate": "成功率",
+  "Switch to this org": "切换到该组织",
+  "System": "跟随系统",
+  "Task": "任务",
+  "Team": "团队",
+  "Tests": "测试",
+  "Theme": "主题",
+  "Thinking": "思考中",
+  "Timeline": "时间线",
+  "Title": "标题",
+  "Today": "今天",
+  "Token usage": "Token 用量",
+  "Token usage (30d)": "Token 用量（30 天）",
+  "Topic": "话题",
+  "Total": "合计",
+  "Trigger": "触发",
+  "Type": "类型",
+  "Unassigned": "未分配",
+  "Unchecked": "未检查",
+  "Unknown": "未知",
+  "Unlinked tasks": "未关联任务",
+  "Unpin": "取消置顶",
+  "Upload": "上传",
+  "Usage": "用量",
+  "Version": "版本",
+  "Version (semver)": "版本（semver）",
+  "Visibility": "可见性",
+  "Waiting on you": "等你处理",
+  "We never embed the key in the build. Credentials encrypt locally via OS-protected storage.": "密钥绝不打包进构建。凭证经操作系统保护的存储在本地加密。",
+  "Welcome": "欢迎",
+  "Work": "工作",
+  "Workspace": "工作区",
+  "Workspace path (optional)": "工作区路径（可选）",
+  "Workspaces": "工作区",
+  "Yesterday": "昨天",
+  "You're all caught up": "都处理完了",
+  "Your name": "你的名字",
+  "Your name is required.": "请填写你的名字。",
+  "Zero data retention": "零数据保留",
+  "Zoom in": "放大",
+  "Zoom out": "缩小",
+  "agent": "智能体",
+  "ahead": "超前",
+  "allocated": "已分配",
+  "backlog": "待办",
+  "behind": "落后",
+  "completed": "已完成",
+  "done": "已完成",
+  "failed": "失败",
+  "high": "高",
+  "high risk": "高风险",
+  "in progress": "进行中",
+  "low": "低",
+  "no work yet": "暂无工作",
+  "normal": "普通",
+  "on track": "正常推进",
+  "queued": "排队中",
+  "review": "审核中",
+  "running": "运行中",
+  "scoped": "限定范围",
+  "workspace": "工作区",
+  "{count} action": "{count} 个操作",
+  "{count} actions": "{count} 个操作",
+  "{count} agent": "{count} 个智能体",
+  "{count} agents": "{count} 个智能体",
+  "{count} chars": "{count} 字符",
+  "{done} / {total} tasks": "{done} / {total} 个任务",
+  "{kind} · {risk} risk · from {requester}": "{kind} · {risk}风险 · 来自 {requester}",
+  "{label} background execution": "{label} 后台执行",
+  "{label} data policy": "{label} 数据策略",
+  "{label} monthly request limit": "{label} 每月请求上限",
+  "{label} workspace scope": "{label} 工作区范围",
+  "{name} — switch organization": "{name} — 切换组织",
+  "{n} agent": "{n} 个智能体",
+  "{n} agent on deck": "{n} 个智能体在岗",
+  "{n} agents": "{n} 个智能体",
+  "{n} agents on deck": "{n} 个智能体在岗",
+  "{n} assignee": "{n} 位负责人",
+  "{n} assignees": "{n} 位负责人",
+  "{n} file": "{n} 个文件",
+  "{n} files": "{n} 个文件",
+  "{n} human": "{n} 位人类成员",
+  "{n} humans": "{n} 位人类成员",
+  "{n} member": "{n} 位成员",
+  "{n} members": "{n} 位成员",
+  "{n} thing waiting on you": "{n} 件事等你处理",
+  "{n} things waiting on you": "{n} 件事等你处理",
+  "{n}d ago": "{n} 天前",
+  "{n}h ago": "{n} 小时前",
+  "{n}m ago": "{n} 分钟前",
+  "{n}w ago": "{n} 周前",
+  "just now": "刚刚",
+  "{n} failed": "{n} 个失败",
+  "{n} open": "{n} 个未完成",
+  "{n} queued": "{n} 个排队中",
+  "{n} running": "{n} 个运行中",
+  "{n} task": "{n} 个任务",
+  "{n} tasks": "{n} 个任务",
+  "{n} this week": "本周 {n} 次",
+  "{ok} ok · {failed} failed": "{ok} 成功 · {failed} 失败",
+  "{passed}/{total} passed": "{passed}/{total} 通过",
+  "{pending} pending · {approved} approved this week": "{pending} 待处理 · 本周已批准 {approved}",
+  "{percent}% of cap": "上限的 {percent}%",
+};
diff --git a/src/renderer/src/pages/ApprovalsPage.tsx b/src/renderer/src/pages/ApprovalsPage.tsx
index b7a796ab..e4f2dae8 100644
--- a/src/renderer/src/pages/ApprovalsPage.tsx
+++ b/src/renderer/src/pages/ApprovalsPage.tsx
@@ -10,20 +10,21 @@ import type {
 import { APPROVAL_STATE, RISK_LEVEL } from "../../../shared/domain";
 import type { PageProps } from "./types";
 import { activeOrgId, formatRelative, requireActiveEmployee } from "./types";
+import { t } from "../i18n/i18n";
 
 type RiskFilter = "all" | RiskLevel;
 
 const RISK_FILTERS: ReadonlyArray<{ id: RiskFilter; label: string }> = [
-  { id: "all", label: "All risk" },
-  { id: RISK_LEVEL.HIGH, label: "High" },
-  { id: RISK_LEVEL.MEDIUM, label: "Medium" },
-  { id: RISK_LEVEL.LOW, label: "Low" },
+  { id: "all", label: t("All risk") },
+  { id: RISK_LEVEL.HIGH, label: t("High") },
+  { id: RISK_LEVEL.MEDIUM, label: t("Medium") },
+  { id: RISK_LEVEL.LOW, label: t("Low") },
 ];
 
 const RISK_TONES: Record<RiskLevel, { label: string; color: string }> = {
-  [RISK_LEVEL.HIGH]: { label: "High risk", color: "var(--red)" },
-  [RISK_LEVEL.MEDIUM]: { label: "Medium risk", color: "var(--amber)" },
-  [RISK_LEVEL.LOW]: { label: "Low risk", color: "var(--text-3)" },
+  [RISK_LEVEL.HIGH]: { label: t("High risk"), color: "var(--red)" },
+  [RISK_LEVEL.MEDIUM]: { label: t("Medium risk"), color: "var(--amber)" },
+  [RISK_LEVEL.LOW]: { label: t("Low risk"), color: "var(--text-3)" },
 };
 
 export function ApprovalsPage({ snapshot, actions }: PageProps) {
@@ -66,21 +67,21 @@ export function ApprovalsPage({ snapshot, actions }: PageProps) {
     <div className="page">
       <TopbarActions>
         <RiskMenu filter={filter} onChange={setFilter} />
-        <Button tone="primary" onClick={approveAllLowRisk}>Approve all low risk</Button>
+        <Button tone="primary" onClick={approveAllLowRisk}>{t("Approve all low risk")}</Button>
       </TopbarActions>
-      <h1 className="page-h1">Approvals</h1>
+      <h1 className="page-h1">{t("Approvals")}</h1>
       <p className="page-sub">
-        {pending.length} pending · {approved7d} approved this week
+        {t("{pending} pending · {approved} approved this week", { pending: pending.length, approved: approved7d })}
       </p>
 
       <div style={{ display: "grid", gridTemplateColumns: "repeat(auto-fit, minmax(180px, 1fr))", gap: 12, marginBottom: 24 }}>
-        <StatTile label="Pending" value={String(pending.length)} tone="amber" />
-        <StatTile label="Median time" value={formatMinutes(medianTime)} />
-        <StatTile label="Approved (7d)" value={String(approved7d)} />
-        <StatTile label="Declined (7d)" value={String(declined7d)} />
+        <StatTile label={t("Pending")} value={String(pending.length)} tone="amber" />
+        <StatTile label={t("Median time")} value={formatMinutes(medianTime)} />
+        <StatTile label={t("Approved (7d)")} value={String(approved7d)} />
+        <StatTile label={t("Declined (7d)")} value={String(declined7d)} />
       </div>
 
-      {filteredPending.length > 0 && <div className="section-label" style={{ marginBottom: 10 }}>Pending</div>}
+      {filteredPending.length > 0 && <div className="section-label" style={{ marginBottom: 10 }}>{t("Pending")}</div>}
       {filteredPending.map((approval) => (
         <ApprovalRow
           key={approval.id}
@@ -95,7 +96,7 @@ export function ApprovalsPage({ snapshot, actions }: PageProps) {
 
       {decided.length > 0 && (
         <>
-          <div className="section-label" style={{ margin: "32px 0 10px" }}>Recently decided</div>
+          <div className="section-label" style={{ margin: "32px 0 10px" }}>{t("Recently decided")}</div>
           <div className="card" style={{ padding: 0, overflow: "hidden" }}>
             {decided.slice(0, 24).map((approval, index) => (
               <DecidedRow
@@ -140,7 +141,7 @@ function ApprovalDetailDialog({
       <div className="modal" role="dialog" aria-label={approval.title} onMouseDown={(event) => event.stopPropagation()}>
         <div className="row" style={{ alignItems: "flex-start", gap: 10, marginBottom: 12 }}>
           <h2 className="modal-title" style={{ margin: 0, flex: 1 }}>{approval.title}</h2>
-          <IconButton icon="x" label="Close" onClick={onClose} />
+          <IconButton icon="x" label={t("Close")} onClick={onClose} />
         </div>
         <div className="row" style={{ flexWrap: "wrap", gap: 6, marginBottom: 14 }}>
           <span style={{ fontSize: 12, color: tone.color, fontWeight: 540, letterSpacing: "0.02em" }}>{tone.label}</span>
@@ -151,23 +152,23 @@ function ApprovalDetailDialog({
           {approval.details}
         </p>
         <div style={{ display: "grid", gridTemplateColumns: "100px 1fr", gap: "10px 14px", fontSize: 12 }}>
-          <span style={{ color: "var(--text-3)" }}>Requested by</span>
+          <span style={{ color: "var(--text-3)" }}>{t("Requested by")}</span>
           <span>{requester}</span>
-          {approval.sourceEntityType && (<><span style={{ color: "var(--text-3)" }}>Source</span><span>{humanizeKind(approval.sourceEntityType)}</span></>)}
-          <span style={{ color: "var(--text-3)" }}>Requested</span>
+          {approval.sourceEntityType && (<><span style={{ color: "var(--text-3)" }}>{t("Source")}</span><span>{humanizeKind(approval.sourceEntityType)}</span></>)}
+          <span style={{ color: "var(--text-3)" }}>{t("Requested")}</span>
           <span>{formatRelative(approval.createdAt)}</span>
         </div>
         <textarea
           className="input"
-          aria-label="Decision notes"
+          aria-label={t("Decision notes")}
           value={notes}
           onChange={(e) => setNotes(e.target.value)}
           rows={2}
           style={{ marginTop: 14 }}
         />
         <div className="modal-actions">
-          <Button onClick={() => onDecide("declined", notes || undefined)}>Decline</Button>
-          <Button tone="primary" onClick={() => onDecide("approved", notes || undefined)}>Approve</Button>
+          <Button onClick={() => onDecide("declined", notes || undefined)}>{t("Decline")}</Button>
+          <Button tone="primary" onClick={() => onDecide("approved", notes || undefined)}>{t("Approve")}</Button>
         </div>
       </div>
     </div>
@@ -186,7 +187,7 @@ function RiskMenu({ filter, onChange }: { filter: RiskFilter; onChange: (next: R
       value={filter}
       onChange={(event) => onChange(event.target.value as RiskFilter)}
       style={{ padding: "0 10px" }}
-      aria-label="Filter risk"
+      aria-label={t("Filter risk")}
     >
       {RISK_FILTERS.map((option) => <option key={option.id} value={option.id}>{option.label}</option>)}
     </select>
@@ -251,13 +252,13 @@ function ApprovalRow({
         </div>
         <div className="row" style={{ gap: 8 }}>
           <Avatar name={requester} size="sm" bot={isBot} />
-          <span style={{ fontSize: 12, color: "var(--text-3)" }}>Requested by {requester} · {formatRelative(approval.createdAt)}</span>
+          <span style={{ fontSize: 12, color: "var(--text-3)" }}>{t("Requested by {requester}", { requester })} · {formatRelative(approval.createdAt)}</span>
         </div>
       </div>
       <div style={{ display: "flex", flexDirection: "column", gap: 6, alignItems: "flex-end" }}>
-        <Button tone="primary" onClick={onApprove}>Approve</Button>
-        <Button onClick={onEdit}>Edit</Button>
-        <Button tone="ghost" onClick={onDecline}>Decline</Button>
+        <Button tone="primary" onClick={onApprove}>{t("Approve")}</Button>
+        <Button onClick={onEdit}>{t("Edit")}</Button>
+        <Button tone="ghost" onClick={onDecline}>{t("Decline")}</Button>
       </div>
     </div>
   );
@@ -275,7 +276,7 @@ function DecidedRow({
   last: boolean;
 }) {
   const approved = approval.state === APPROVAL_STATE.APPROVED;
-  const decidedLabel = approved ? "Approved" : "Declined";
+  const decidedLabel = approved ? t("Approved") : t("Declined");
   return (
     <div
       className="row"
@@ -298,17 +299,17 @@ function DecidedRow({
 
 function resolveRequester(approval: ApprovalRecord, employees: EmployeeRecord[], agents: AgentRecord[]): string {
   if (approval.requestedByType === "employee" && approval.requestedById) {
-    return employees.find((item) => item.id === approval.requestedById)?.displayName ?? "Unknown";
+    return employees.find((item) => item.id === approval.requestedById)?.displayName ?? t("Unknown");
   }
   if (approval.requestedByType === "agent" && approval.requestedById) {
-    return agents.find((item) => item.id === approval.requestedById)?.name ?? "Agent";
+    return agents.find((item) => item.id === approval.requestedById)?.name ?? t("Agent");
   }
-  return "System";
+  return t("System");
 }
 
 function resolveDecider(approval: ApprovalRecord, employees: EmployeeRecord[]): string {
   if (!approval.decidedByEmployeeId) return "—";
-  return employees.find((item) => item.id === approval.decidedByEmployeeId)?.displayName ?? "Unknown";
+  return employees.find((item) => item.id === approval.decidedByEmployeeId)?.displayName ?? t("Unknown");
 }
 
 function withinDays(iso: string | null, days: number): boolean {
diff --git a/src/renderer/src/pages/ChatPage.tsx b/src/renderer/src/pages/ChatPage.tsx
index c0d36f15..5e3a349e 100644
--- a/src/renderer/src/pages/ChatPage.tsx
+++ b/src/renderer/src/pages/ChatPage.tsx
@@ -1,6 +1,7 @@
 import { useEffect, useMemo, useRef, useState, type FormEvent } from "react";
 import { Field } from "../shared/ui";
 import { Dialog } from "../shared/Dialog";
+import { t } from "../i18n/i18n";
 import { ChatSidebar } from "./chat/ChatSidebar";
 import { ChatConversation } from "./chat/ChatConversation";
 import {
@@ -203,39 +204,39 @@ export function ChatPage({ snapshot, actions }: PageProps) {
       />
 
       <Dialog
-        title="New space"
+        title={t("New space")}
         open={createOpen}
-        submitLabel="Create"
+        submitLabel={t("Create")}
         onClose={() => setCreateOpen(false)}
         onSubmit={createSpace}
       >
-        <Field label="Name"><input className="input" name="name" required /></Field>
-        <Field label="Topic"><input className="input" name="topic" required /></Field>
-        <Field label="Type">
+        <Field label={t("Name")}><input className="input" name="name" required /></Field>
+        <Field label={t("Topic")}><input className="input" name="topic" required /></Field>
+        <Field label={t("Type")}>
           <select className="input" name="spaceType" defaultValue="project">
-            <option value="company">Company</option>
-            <option value="division">Division</option>
-            <option value="department">Department</option>
-            <option value="project">Project</option>
-            <option value="pod">Pod</option>
-            <option value="ad_hoc">Ad-hoc</option>
-            <option value="direct">Direct</option>
+            <option value="company">{t("Company")}</option>
+            <option value="division">{t("Division")}</option>
+            <option value="department">{t("Department")}</option>
+            <option value="project">{t("Project")}</option>
+            <option value="pod">{t("Pod")}</option>
+            <option value="ad_hoc">{t("Ad-hoc")}</option>
+            <option value="direct">{t("Direct")}</option>
           </select>
         </Field>
-        <Field label="Visibility">
+        <Field label={t("Visibility")}>
           <select className="input" name="visibility" defaultValue="workspace">
-            <option value="workspace">Workspace</option>
-            <option value="restricted">Restricted</option>
+            <option value="workspace">{t("Workspace")}</option>
+            <option value="restricted">{t("Restricted")}</option>
           </select>
         </Field>
-        <Field label="Employees">
+        <Field label={t("Employees")}>
           <select className="input" name="memberEmployeeIds" multiple size={Math.max(1, Math.min(4, employees.length))}>
             {employees.filter((item) => item.id !== employee.id).map((item) => (
               <option key={item.id} value={item.id}>{item.displayName}</option>
             ))}
           </select>
         </Field>
-        <Field label="Agents">
+        <Field label={t("Agents")}>
           <select className="input" name="memberAgentIds" multiple size={Math.max(1, Math.min(4, agents.length))}>
             {agents.map((agent) => <option key={agent.id} value={agent.id}>{agent.name}</option>)}
           </select>
diff --git a/src/renderer/src/pages/ConnectorsPage.tsx b/src/renderer/src/pages/ConnectorsPage.tsx
index 001580d8..a2dd22e2 100644
--- a/src/renderer/src/pages/ConnectorsPage.tsx
+++ b/src/renderer/src/pages/ConnectorsPage.tsx
@@ -1,5 +1,6 @@
 import { useMemo } from "react";
 import { Button } from "../shared/ui";
+import { t } from "../i18n/i18n";
 import type { PageProps } from "./types";
 import { activeOrgId } from "./types";
 import { ConnectedList } from "./connectors/ConnectedList";
@@ -41,7 +42,7 @@ export function ConnectorsPage({ snapshot, actions }: PageProps) {
 
   return (
     <div style={{ maxWidth: 1060 }}>
-      <h2 style={{ margin: "0 0 18px", fontSize: 16, fontWeight: 600 }}>Connectors</h2>
+      <h2 style={{ margin: "0 0 18px", fontSize: 16, fontWeight: 600 }}>{t("Connectors")}</h2>
 
       {connectError && (
         <div
@@ -84,7 +85,7 @@ export function ConnectorsPage({ snapshot, actions }: PageProps) {
           >
             {catalog.message}
           </span>
-          <Button size="small" onClick={retry}>Retry</Button>
+          <Button size="small" onClick={retry}>{t("Retry")}</Button>
         </div>
       )}
       {catalog.phase === "ready" && (
diff --git a/src/renderer/src/pages/FilesPage.tsx b/src/renderer/src/pages/FilesPage.tsx
index 058194b1..e4b2e226 100644
--- a/src/renderer/src/pages/FilesPage.tsx
+++ b/src/renderer/src/pages/FilesPage.tsx
@@ -5,6 +5,7 @@ import { FILE_SCAN_STATE, type FileObjectRecord, type FileScanState } from "../.
 import { MenuLabel, MenuRow, Popover } from "../shared/Popover";
 import type { PageProps } from "./types";
 import { activeOrgId, formatBytes } from "./types";
+import { t } from "../i18n/i18n";
 import { FilesTree } from "./files/FilesTree";
 import { FilesTable } from "./files/FilesTable";
 import { FilesGrid, PinnedCard } from "./files/FilesGrid";
@@ -70,23 +71,23 @@ export function FilesPage({ snapshot, actions }: PageProps) {
             value={view}
             onChange={setView}
             options={[
-              { id: "grid", label: "Grid" },
-              { id: "list", label: "List" },
+              { id: "grid", label: t("Grid") },
+              { id: "list", label: t("List") },
             ]}
           />
           <Button tone="primary" onClick={upload}>
-            <Icon name="upload" size={16} /> Upload
+            <Icon name="upload" size={16} /> {t("Upload")}
           </Button>
         </TopbarActions>
-        <h1 className="page-h1">Files</h1>
+        <h1 className="page-h1">{t("Files")}</h1>
         <p className="page-sub">
-          {visibleFiles.length} {visibleFiles.length === 1 ? "file" : "files"} · {formatBytes(totalBytes)}
+          {visibleFiles.length === 1 ? t("{n} file", { n: visibleFiles.length }) : t("{n} files", { n: visibleFiles.length })} · {formatBytes(totalBytes)}
         </p>
 
         <div className="pane-scroll" style={{ paddingBottom: 40 }}>
           {pinnedFiles.length > 0 && section.kind === "all" && (
             <>
-              <div className="section-label" style={{ marginBottom: 10 }}>Pinned</div>
+              <div className="section-label" style={{ marginBottom: 10 }}>{t("Pinned")}</div>
               <div style={{ display: "grid", gridTemplateColumns: "repeat(auto-fill, minmax(220px, 1fr))", gap: 12, marginBottom: 28 }}>
                 {pinnedFiles.slice(0, 8).map((file) => (
                   <PinnedCard
@@ -104,7 +105,7 @@ export function FilesPage({ snapshot, actions }: PageProps) {
 
           <div className="row" style={{ marginBottom: 10 }}>
             <div className="section-label">{labelFor(section)}</div>
-            <div style={{ marginLeft: "auto", fontSize: 12, color: "var(--text-3)" }}>Modified ↓</div>
+            <div style={{ marginLeft: "auto", fontSize: 12, color: "var(--text-3)" }}>{t("Modified")} ↓</div>
           </div>
 
           {view === "list" ? (
@@ -140,21 +141,21 @@ function FilesFilter({
   onScan: (next: FileScanState | "all") => void;
 }) {
   const options: ReadonlyArray<{ id: FileScanState | "all"; label: string }> = [
-    { id: "all", label: "All files" },
-    { id: FILE_SCAN_STATE.APPROVED, label: "Clean" },
-    { id: FILE_SCAN_STATE.BLOCKED, label: "Blocked" },
+    { id: "all", label: t("All files") },
+    { id: FILE_SCAN_STATE.APPROVED, label: t("Clean") },
+    { id: FILE_SCAN_STATE.BLOCKED, label: t("Blocked") },
   ];
   return (
     <Popover
       trigger={({ toggle }) => (
-        <button type="button" className="button ghost" aria-label="Filter files" onClick={toggle}>
+        <button type="button" className="button ghost" aria-label={t("Filter files")} onClick={toggle}>
           <Icon name="filter" size={16} color={scan !== "all" ? "var(--accent)" : "currentColor"} />
         </button>
       )}
     >
       {() => (
         <>
-          <MenuLabel>Scan status</MenuLabel>
+          <MenuLabel>{t("Scan status")}</MenuLabel>
           {options.map((option) => (
             <MenuRow key={option.id} active={scan === option.id} onClick={() => onScan(option.id)}>
               {option.label}
diff --git a/src/renderer/src/pages/HomePage.tsx b/src/renderer/src/pages/HomePage.tsx
index e51bc948..90e20688 100644
--- a/src/renderer/src/pages/HomePage.tsx
+++ b/src/renderer/src/pages/HomePage.tsx
@@ -15,6 +15,7 @@ import { NewTaskDialog } from "./NewTaskDialog";
 import { AgentWorkloadChart, CostTrendChart, RunActivityChart, SuccessRateChart } from "./home/DashboardCharts";
 import type { PageProps } from "./types";
 import { activeOrgId, formatRelative, formatTime, money, requireActiveEmployee, requireActiveOrganization } from "./types";
+import { t } from "../i18n/i18n";
 
 const STRIP: CSSProperties = { display: "grid", gridTemplateColumns: "repeat(3, minmax(0, 1fr))", gap: 16, marginBottom: 16 };
 const METRICS: CSSProperties = { display: "grid", gridTemplateColumns: "repeat(4, minmax(0, 1fr))", gap: 16, marginBottom: 16 };
@@ -49,7 +50,7 @@ export function HomePage({ snapshot, actions, navigate }: PageProps) {
   return (
     <div className="page-wide" style={{ maxWidth: 1240 }}>
       <TopbarActions>
-        <Button tone="primary" onClick={() => setNewTaskOpen(true)}><Icon name="plus" size={16} /> New task</Button>
+        <Button tone="primary" onClick={() => setNewTaskOpen(true)}><Icon name="plus" size={16} /> {t("New task")}</Button>
       </TopbarActions>
       <h1 className="page-h1">{greeting}, {firstName}</h1>
       <p className="page-sub">{renderSummary(pendingApprovals.length, agents.length)}</p>
@@ -95,13 +96,13 @@ function GoalCard({
   const percent = progress?.percent ?? 0;
   return (
     <section className="card">
-      <div className="card-label" style={{ marginBottom: 12 }}>Quarter goal</div>
+      <div className="card-label" style={{ marginBottom: 12 }}>{t("Quarter goal")}</div>
       <div style={{ fontSize: 16, fontWeight: 540, lineHeight: 1.4, letterSpacing: "-0.01em", display: "-webkit-box", WebkitLineClamp: 2, WebkitBoxOrient: "vertical", overflow: "hidden", minHeight: 44 }}>
-        {goal ? goal.title : `Set the first goal for ${organizationName}.`}
+        {goal ? goal.title : t("Set the first goal for {organizationName}.", { organizationName })}
       </div>
       <div className="row" style={{ alignItems: "baseline", gap: 8, marginTop: 16 }}>
         <span className="num" style={{ fontSize: 18, fontWeight: 600 }}>{progress ? `${percent}%` : "—"}</span>
-        <span style={{ fontSize: 12, color: "var(--text-3)" }}>{progress ? statusLabel(progress.status) : "no work yet"}</span>
+        <span style={{ fontSize: 12, color: "var(--text-3)" }}>{progress ? statusLabel(progress.status) : t("no work yet")}</span>
       </div>
       <div style={{ marginTop: 12, height: 4, background: "var(--panel-3)", borderRadius: 999, overflow: "hidden" }}>
         <div style={{ width: `${percent}%`, height: "100%", background: "var(--text-1)", transition: "width var(--motion-slow) var(--ease-out)" }} />
@@ -125,10 +126,10 @@ function SpendCard({
   const fillPct = capCents > 0 ? Math.min(100, Math.round((totalBudgetCents / capCents) * 100)) : 0;
   return (
     <section className="card">
-      <div className="card-label" style={{ marginBottom: 12 }}>Monthly budget</div>
+      <div className="card-label" style={{ marginBottom: 12 }}>{t("Monthly budget")}</div>
       <div className="row" style={{ alignItems: "baseline", gap: 6 }}>
         <span className="num" style={{ fontSize: 18, fontWeight: 600 }}>{money(totalBudgetCents)}</span>
-        <span style={{ fontSize: 12, color: "var(--text-3)" }}>{capCents > 0 ? `/ ${money(capCents)}` : "allocated"}</span>
+        <span style={{ fontSize: 12, color: "var(--text-3)" }}>{capCents > 0 ? `/ ${money(capCents)}` : t("allocated")}</span>
       </div>
       <div style={{ marginTop: 12, height: 4, background: "var(--panel-3)", borderRadius: 999, overflow: "hidden" }}>
         <div style={{ width: `${fillPct}%`, height: "100%", background: "var(--text-1)" }} />
@@ -143,7 +144,7 @@ function SpendCard({
             </div>
           );
         })}
-        {connected.length === 0 && <span style={{ fontSize: 14, color: "var(--text-3)" }}>No providers connected</span>}
+        {connected.length === 0 && <span style={{ fontSize: 14, color: "var(--text-3)" }}>{t("No providers connected")}</span>}
       </div>
     </section>
   );
@@ -165,12 +166,12 @@ function WaitingCard({
   return (
     <section className="card">
       <div className="row" style={{ marginBottom: 12 }}>
-        <span className="card-label">Waiting on you</span>
+        <span className="card-label">{t("Waiting on you")}</span>
         {approvals.length > 0 && <span style={{ marginLeft: "auto" }}><Pill tone="amber">{approvals.length}</Pill></span>}
       </div>
       {approvals.length === 0 ? (
         <div className="row" style={{ gap: 8, color: "var(--text-3)", fontSize: 14 }}>
-          <Icon name="check" size={16} /><span>You're all caught up</span>
+          <Icon name="check" size={16} /><span>{t("You're all caught up")}</span>
         </div>
       ) : (
         <div style={{ display: "flex", flexDirection: "column", gap: 16 }}>
@@ -178,11 +179,11 @@ function WaitingCard({
             <div key={approval.id}>
               <div style={{ fontSize: 14, fontWeight: 500, overflow: "hidden", textOverflow: "ellipsis", whiteSpace: "nowrap" }}>{approval.title}</div>
               <div style={{ fontSize: 12, color: "var(--text-3)", margin: "2px 0 8px" }}>
-                {humanizeLabel(approval.kind)} · {humanizeLabel(approval.risk)} risk · from {resolveRequester(approval, employees, agents)}
+                {t("{kind} · {risk} risk · from {requester}", { kind: humanizeLabel(approval.kind), risk: humanizeLabel(approval.risk), requester: resolveRequester(approval, employees, agents) })}
               </div>
               <div className="row" style={{ gap: 8 }}>
-                <Button tone="primary" size="small" onClick={() => onApprove(approval.id)}>Approve</Button>
-                <Button size="small" onClick={onOpen}>Open</Button>
+                <Button tone="primary" size="small" onClick={() => onApprove(approval.id)}>{t("Approve")}</Button>
+                <Button size="small" onClick={onOpen}>{t("Open")}</Button>
               </div>
             </div>
           ))}
@@ -207,8 +208,8 @@ function RunActivityCard({
   return (
     <section className="card">
       <div className="row" style={{ marginBottom: 12 }}>
-        <span className="card-label">Agent runs</span>
-        <button type="button" className="link-button" style={{ marginLeft: "auto", fontSize: 12 }} onClick={onViewAll}>All runs →</button>
+        <span className="card-label">{t("Agent runs")}</span>
+        <button type="button" className="link-button" style={{ marginLeft: "auto", fontSize: 12 }} onClick={onViewAll}>{t("All runs")} →</button>
       </div>
       <div style={{ display: "flex", flexDirection: "column", gap: 12 }}>
         {recent.map((run) => {
@@ -219,14 +220,14 @@ function RunActivityCard({
               {agent && <Avatar name={agent.name} size="sm" bot />}
               <div style={{ flex: 1, minWidth: 0 }}>
                 <div style={{ fontSize: 14, overflow: "hidden", textOverflow: "ellipsis", whiteSpace: "nowrap" }}>{task?.title ?? run.taskId}</div>
-                <div style={{ fontSize: 12, color: "var(--text-3)" }}>{agent?.name ?? "Agent"} · {run.trigger}</div>
+                <div style={{ fontSize: 12, color: "var(--text-3)" }}>{agent?.name ?? t("Agent")} · {run.trigger}</div>
               </div>
               <Pill tone={runStateTone(run.state)}>{runStateLabel(run.state)}</Pill>
               <span className="mono" style={{ fontSize: 12, color: "var(--text-3)", flexShrink: 0 }}>{formatRelative(run.createdAt)}</span>
             </div>
           );
         })}
-        {recent.length === 0 && <div style={{ fontSize: 14, color: "var(--text-3)" }}>No runs yet</div>}
+        {recent.length === 0 && <div style={{ fontSize: 14, color: "var(--text-3)" }}>{t("No runs yet")}</div>}
       </div>
     </section>
   );
@@ -249,8 +250,8 @@ function RecentMessagesCard({
   return (
     <section className="card">
       <div className="row" style={{ marginBottom: 12 }}>
-        <span className="card-label">Recent messages</span>
-        <button type="button" className="link-button" style={{ marginLeft: "auto", fontSize: 12 }} onClick={onViewAll}>Open chat →</button>
+        <span className="card-label">{t("Recent messages")}</span>
+        <button type="button" className="link-button" style={{ marginLeft: "auto", fontSize: 12 }} onClick={onViewAll}>{t("Open chat")} →</button>
       </div>
       <div style={{ display: "flex", flexDirection: "column", gap: 12 }}>
         {recent.map((msg) => {
@@ -273,7 +274,7 @@ function RecentMessagesCard({
             </div>
           );
         })}
-        {recent.length === 0 && <div style={{ fontSize: 14, color: "var(--text-3)" }}>No messages yet</div>}
+        {recent.length === 0 && <div style={{ fontSize: 14, color: "var(--text-3)" }}>{t("No messages yet")}</div>}
       </div>
     </section>
   );
@@ -291,20 +292,24 @@ function computeGoalProgress(goal: GoalRecord | null, tasks: TaskRecord[]): { pe
 }
 
 function statusLabel(status: "ahead" | "on_track" | "behind"): string {
-  if (status === "ahead") return "ahead";
-  if (status === "behind") return "behind";
-  return "on track";
+  if (status === "ahead") return t("ahead");
+  if (status === "behind") return t("behind");
+  return t("on track");
 }
 
 function greetingFor(hour: number): string {
-  if (hour < 12) return "Good morning";
-  if (hour < 17) return "Good afternoon";
-  return "Good evening";
+  if (hour < 12) return t("Good morning");
+  if (hour < 17) return t("Good afternoon");
+  return t("Good evening");
 }
 
 function renderSummary(pending: number, agents: number): string {
-  const things = `${pending} ${pending === 1 ? "thing" : "things"} waiting on you`;
-  const onDeck = `${agents} ${agents === 1 ? "agent" : "agents"} on deck`;
+  const things = pending === 1
+    ? t("{n} thing waiting on you", { n: pending })
+    : t("{n} things waiting on you", { n: pending });
+  const onDeck = agents === 1
+    ? t("{n} agent on deck", { n: agents })
+    : t("{n} agents on deck", { n: agents });
   return `${things} · ${onDeck}`;
 }
 
@@ -323,7 +328,7 @@ function resolveRequester(approval: ApprovalRecord, employees: EmployeeRecord[],
     const agent = agents.find((item) => item.id === approval.requestedById);
     if (agent) return agent.name;
   }
-  return "System";
+  return t("System");
 }
 
 function runStateTone(state: string): "red" | "amber" | "violet" | "green" | undefined {
@@ -335,9 +340,9 @@ function runStateTone(state: string): "red" | "amber" | "violet" | "green" | und
 }
 
 function runStateLabel(state: string): string {
-  if (state === "queued") return "Queued";
-  if (state === "running") return "Running";
-  if (state === "completed") return "Done";
-  if (state === "failed") return "Failed";
+  if (state === "queued") return t("Queued");
+  if (state === "running") return t("Running");
+  if (state === "completed") return t("Done");
+  if (state === "failed") return t("Failed");
   return state;
 }
diff --git a/src/renderer/src/pages/NewTaskDialog.tsx b/src/renderer/src/pages/NewTaskDialog.tsx
index 3362c2e4..a5b82206 100644
--- a/src/renderer/src/pages/NewTaskDialog.tsx
+++ b/src/renderer/src/pages/NewTaskDialog.tsx
@@ -4,17 +4,18 @@ import { Field } from "../shared/ui";
 import type { AppSnapshot, RiskLevel, TaskPriority } from "../../../shared/domain";
 import { RISK_LEVEL, TASK_PRIORITY, TASK_STATUS } from "../../../shared/domain";
 import type { SnapshotActions } from "../app/useSnapshot";
+import { t } from "../i18n/i18n";
 
 const RISK_OPTIONS: ReadonlyArray<{ value: RiskLevel; label: string }> = [
-  { value: RISK_LEVEL.LOW, label: "Low" },
-  { value: RISK_LEVEL.MEDIUM, label: "Medium" },
-  { value: RISK_LEVEL.HIGH, label: "High" },
+  { value: RISK_LEVEL.LOW, label: t("Low") },
+  { value: RISK_LEVEL.MEDIUM, label: t("Medium") },
+  { value: RISK_LEVEL.HIGH, label: t("High") },
 ];
 
 const PRIORITY_OPTIONS: ReadonlyArray<{ value: TaskPriority; label: string }> = [
-  { value: TASK_PRIORITY.LOW, label: "Low" },
-  { value: TASK_PRIORITY.NORMAL, label: "Normal" },
-  { value: TASK_PRIORITY.HIGH, label: "High" },
+  { value: TASK_PRIORITY.LOW, label: t("Low") },
+  { value: TASK_PRIORITY.NORMAL, label: t("Normal") },
+  { value: TASK_PRIORITY.HIGH, label: t("High") },
 ];
 
 function value(form: FormData, key: string): string {
@@ -64,45 +65,45 @@ export function NewTaskDialog({
   };
 
   return (
-    <Dialog title="New task" open={open} submitLabel="Create" onClose={onClose} onSubmit={submit}>
-      <Field label="Title"><input className="input" name="title" required autoFocus /></Field>
-      <Field label="Description"><textarea className="input" name="description" required /></Field>
-      <Field label="Assignee">
+    <Dialog title={t("New task")} open={open} submitLabel={t("Create")} onClose={onClose} onSubmit={submit}>
+      <Field label={t("Title")}><input className="input" name="title" required autoFocus /></Field>
+      <Field label={t("Description")}><textarea className="input" name="description" required /></Field>
+      <Field label={t("Assignee")}>
         <select className="input" name="assigneeAgentId">
-          <option value="">Unassigned</option>
+          <option value="">{t("Unassigned")}</option>
           {agents.map((agent) => <option key={agent.id} value={agent.id}>{agent.name}</option>)}
         </select>
       </Field>
-      <Field label="Project">
+      <Field label={t("Project")}>
         <select className="input" name="projectId">
-          <option value="">None</option>
+          <option value="">{t("None")}</option>
           {projects.map((project) => <option key={project.id} value={project.id}>{project.name}</option>)}
         </select>
       </Field>
-      <Field label="Goal">
+      <Field label={t("Goal")}>
         <select className="input" name="goalId">
-          <option value="">None</option>
+          <option value="">{t("None")}</option>
           {goals.map((goal) => <option key={goal.id} value={goal.id}>{goal.title}</option>)}
         </select>
       </Field>
-      <Field label="Workspace">
+      <Field label={t("Workspace")}>
         <select className="input" name="workspaceId">
-          <option value="">None</option>
+          <option value="">{t("None")}</option>
           {workspaces.map((workspace) => <option key={workspace.id} value={workspace.id}>{workspace.name}</option>)}
         </select>
       </Field>
-      <Field label="Risk">
+      <Field label={t("Risk")}>
         <select className="input" name="risk" defaultValue={RISK_LEVEL.LOW}>
           {RISK_OPTIONS.map((option) => <option key={option.value} value={option.value}>{option.label}</option>)}
         </select>
       </Field>
-      <Field label="Priority">
+      <Field label={t("Priority")}>
         <select className="input" name="priority" defaultValue={TASK_PRIORITY.NORMAL}>
           {PRIORITY_OPTIONS.map((option) => <option key={option.value} value={option.value}>{option.label}</option>)}
         </select>
       </Field>
       <label className="checkbox-row">
-        <input type="checkbox" name="requiresFilesystem" /> Requires workspace access
+        <input type="checkbox" name="requiresFilesystem" /> {t("Requires workspace access")}
       </label>
     </Dialog>
   );
diff --git a/src/renderer/src/pages/RunsPage.tsx b/src/renderer/src/pages/RunsPage.tsx
index f8ecacb9..f0f5e869 100644
--- a/src/renderer/src/pages/RunsPage.tsx
+++ b/src/renderer/src/pages/RunsPage.tsx
@@ -3,14 +3,15 @@ import { Avatar, Pill, Segmented } from "../shared/ui";
 import type { AgentRecord, ProviderRecord, TaskRecord, TaskRunRecord } from "../../../shared/domain";
 import type { PageProps } from "./types";
 import { activeOrgId, formatRelative } from "./types";
+import { t } from "../i18n/i18n";
 
 type StatusFilter = "all" | "queued" | "running" | "completed" | "failed";
 const FILTERS: Array<{ id: StatusFilter; label: string }> = [
-  { id: "all", label: "All" },
-  { id: "queued", label: "Queued" },
-  { id: "running", label: "Running" },
-  { id: "completed", label: "Done" },
-  { id: "failed", label: "Failed" },
+  { id: "all", label: t("All") },
+  { id: "queued", label: t("Queued") },
+  { id: "running", label: t("Running") },
+  { id: "completed", label: t("Done") },
+  { id: "failed", label: t("Failed") },
 ];
 
 export function RunsPage({ snapshot }: PageProps) {
@@ -46,13 +47,13 @@ export function RunsPage({ snapshot }: PageProps) {
     <div className="split-main">
       <aside className="secondary-pane" style={{ width: 340 }}>
         <div style={{ padding: "12px 12px 8px" }}>
-          <div style={{ fontSize: 14, fontWeight: 600, marginBottom: 8 }}>Runs</div>
+          <div style={{ fontSize: 14, fontWeight: 600, marginBottom: 8 }}>{t("Runs")}</div>
           <div className="row" style={{ gap: 8, marginBottom: 8, fontSize: 12, color: "var(--text-3)" }}>
-            <span>{queued} queued</span><span>·</span><span>{running} running</span><span>·</span><span>{failed} failed</span>
+            <span>{t("{n} queued", { n: queued })}</span><span>·</span><span>{t("{n} running", { n: running })}</span><span>·</span><span>{t("{n} failed", { n: failed })}</span>
           </div>
           <input
             className="input"
-            aria-label="Search runs"
+            aria-label={t("Search runs")}
             value={search}
             onChange={(e) => setSearch(e.target.value)}
             style={{ marginBottom: 8 }}
@@ -76,14 +77,14 @@ export function RunsPage({ snapshot }: PageProps) {
                     {task?.title ?? run.taskId}
                   </div>
                   <div style={{ fontSize: 12, color: "var(--text-3)", overflow: "hidden", textOverflow: "ellipsis", whiteSpace: "nowrap" }}>
-                    {agent?.name ?? "Agent"} · {run.trigger}
+                    {agent?.name ?? t("Agent")} · {run.trigger}
                   </div>
                 </div>
                 <Pill tone={runTone(run.state)}>{runLabel(run.state)}</Pill>
               </button>
             );
           })}
-          {filtered.length === 0 && <div style={{ padding: 16, fontSize: 14, color: "var(--text-3)" }}>No runs</div>}
+          {filtered.length === 0 && <div style={{ padding: 16, fontSize: 14, color: "var(--text-3)" }}>{t("No runs")}</div>}
         </div>
       </aside>
       <div style={{ flex: 1, minWidth: 0, overflow: "auto", padding: 24 }}>
@@ -91,7 +92,7 @@ export function RunsPage({ snapshot }: PageProps) {
           <RunDetail run={selected} tasks={tasks} agents={agents} providers={providers} providerRequests={providerRequests} />
         ) : (
           <div style={{ display: "grid", placeItems: "center", height: "100%", color: "var(--text-3)", fontSize: 14 }}>
-            Select a run
+            {t("Select a run")}
           </div>
         )}
       </div>
@@ -127,36 +128,36 @@ function RunDetail({ run, tasks, agents, providers, providerRequests }: {
       </div>
 
       <div style={{ display: "grid", gridTemplateColumns: "120px 1fr", gap: "8px 16px", fontSize: 14, marginBottom: 20 }}>
-        <MetaLabel>Agent</MetaLabel><div>{agent?.name ?? "—"} ({agent?.role ?? "—"})</div>
-        <MetaLabel>Provider</MetaLabel><div>{provider?.label ?? "—"} · {provider?.model ?? "—"}</div>
-        <MetaLabel>Trigger</MetaLabel><div>{run.trigger}</div>
-        <MetaLabel>Created</MetaLabel><div>{formatRelative(run.createdAt)}</div>
-        {run.startedAt && (<><MetaLabel>Started</MetaLabel><div>{formatRelative(run.startedAt)}</div></>)}
-        {run.completedAt && (<><MetaLabel>Completed</MetaLabel><div>{formatRelative(run.completedAt)}</div></>)}
-        {durationMs !== null && (<><MetaLabel>Duration</MetaLabel><div>{formatDuration(durationMs)}</div></>)}
-        <MetaLabel>Context</MetaLabel><div className="mono" style={{ fontSize: 12, overflow: "hidden", textOverflow: "ellipsis" }}>{run.executionContextId}</div>
+        <MetaLabel>{t("Agent")}</MetaLabel><div>{agent?.name ?? "—"} ({agent?.role ?? "—"})</div>
+        <MetaLabel>{t("Provider")}</MetaLabel><div>{provider?.label ?? "—"} · {provider?.model ?? "—"}</div>
+        <MetaLabel>{t("Trigger")}</MetaLabel><div>{run.trigger}</div>
+        <MetaLabel>{t("Created")}</MetaLabel><div>{formatRelative(run.createdAt)}</div>
+        {run.startedAt && (<><MetaLabel>{t("Started")}</MetaLabel><div>{formatRelative(run.startedAt)}</div></>)}
+        {run.completedAt && (<><MetaLabel>{t("Completed")}</MetaLabel><div>{formatRelative(run.completedAt)}</div></>)}
+        {durationMs !== null && (<><MetaLabel>{t("Duration")}</MetaLabel><div>{formatDuration(durationMs)}</div></>)}
+        <MetaLabel>{t("Context")}</MetaLabel><div className="mono" style={{ fontSize: 12, overflow: "hidden", textOverflow: "ellipsis" }}>{run.executionContextId}</div>
       </div>
 
       {run.state === "failed" && run.errorMessage && (
         <div className="card" style={{ padding: 16, marginBottom: 16, borderColor: "var(--red)" }}>
-          <div className="section-label" style={{ color: "var(--red)", marginBottom: 8 }}>Error</div>
+          <div className="section-label" style={{ color: "var(--red)", marginBottom: 8 }}>{t("Error")}</div>
           <div style={{ fontSize: 14, color: "var(--text-1)", whiteSpace: "pre-wrap", lineHeight: 1.5 }}>{run.errorMessage}</div>
         </div>
       )}
 
       {request && (
         <div className="card" style={{ padding: 16, marginBottom: 16 }}>
-          <div className="section-label" style={{ marginBottom: 8 }}>Provider request</div>
+          <div className="section-label" style={{ marginBottom: 8 }}>{t("Provider request")}</div>
           <div style={{ display: "grid", gridTemplateColumns: "120px 1fr", gap: "8px 16px", fontSize: 14 }}>
-            <MetaLabel>Request ID</MetaLabel><div className="mono" style={{ fontSize: 12, overflow: "hidden", textOverflow: "ellipsis" }}>{request.id}</div>
-            <MetaLabel>Model</MetaLabel><div>{request.model}</div>
-            <MetaLabel>State</MetaLabel><div>{request.state}</div>
-            <MetaLabel>Input chars</MetaLabel><div className="num">{request.inputCharCount.toLocaleString()}</div>
-            <MetaLabel>Output chars</MetaLabel><div className="num">{request.outputCharCount.toLocaleString()}</div>
+            <MetaLabel>{t("Request ID")}</MetaLabel><div className="mono" style={{ fontSize: 12, overflow: "hidden", textOverflow: "ellipsis" }}>{request.id}</div>
+            <MetaLabel>{t("Model")}</MetaLabel><div>{request.model}</div>
+            <MetaLabel>{t("State")}</MetaLabel><div>{request.state}</div>
+            <MetaLabel>{t("Input chars")}</MetaLabel><div className="num">{request.inputCharCount.toLocaleString()}</div>
+            <MetaLabel>{t("Output chars")}</MetaLabel><div className="num">{request.outputCharCount.toLocaleString()}</div>
           </div>
           {request.responseText && (
             <div style={{ marginTop: 12 }}>
-              <div className="section-label" style={{ marginBottom: 6 }}>Response</div>
+              <div className="section-label" style={{ marginBottom: 6 }}>{t("Response")}</div>
               <div style={{
                 fontSize: 12,
                 color: "var(--text-2)",
@@ -192,10 +193,10 @@ function runTone(state: string): "red" | "amber" | "violet" | "green" | undefine
 }
 
 function runLabel(state: string): string {
-  if (state === "queued") return "Queued";
-  if (state === "running") return "Running";
-  if (state === "completed") return "Done";
-  if (state === "failed") return "Failed";
+  if (state === "queued") return t("Queued");
+  if (state === "running") return t("Running");
+  if (state === "completed") return t("Done");
+  if (state === "failed") return t("Failed");
   return state;
 }
 
diff --git a/src/renderer/src/pages/SettingsPage.tsx b/src/renderer/src/pages/SettingsPage.tsx
index 1b41f86d..fe3ff1d3 100644
--- a/src/renderer/src/pages/SettingsPage.tsx
+++ b/src/renderer/src/pages/SettingsPage.tsx
@@ -3,6 +3,7 @@ import { ProvidersPanel } from "./settings/ProvidersPanel";
 import { SkillsPanel } from "./settings/SkillsPanel";
 import { WorkspacePanel } from "./settings/WorkspacePanel";
 import { AdvancedPanel } from "./settings/AdvancedPanel";
+import { t } from "../i18n/i18n";
 import type { PageProps } from "./types";
 import { activeOrgId, requireActiveEmployee, requireActiveOrganization } from "./types";
 
@@ -14,10 +15,10 @@ interface NavSpec {
 }
 
 const TABS: NavSpec[] = [
-  { id: "general", label: "General" },
-  { id: "providers", label: "Providers" },
-  { id: "skills", label: "Skills" },
-  { id: "advanced", label: "Advanced" },
+  { id: "general", label: t("General") },
+  { id: "providers", label: t("Providers") },
+  { id: "skills", label: t("Skills") },
+  { id: "advanced", label: t("Advanced") },
 ];
 
 export function SettingsPage({ snapshot, actions }: PageProps) {
@@ -47,7 +48,7 @@ export function SettingsPage({ snapshot, actions }: PageProps) {
   return (
     <div className="split-main">
       <aside className="secondary-pane">
-        <div style={{ fontSize: 14, fontWeight: 600, padding: "4px 8px 14px" }}>Settings</div>
+        <div style={{ fontSize: 14, fontWeight: 600, padding: "4px 8px 14px" }}>{t("Settings")}</div>
         <div className="pane-scroll">
           <NavGroup items={TABS} active={tab} onChange={setTab} />
         </div>
diff --git a/src/renderer/src/pages/TeamPage.tsx b/src/renderer/src/pages/TeamPage.tsx
index 5432b1ab..40246b78 100644
--- a/src/renderer/src/pages/TeamPage.tsx
+++ b/src/renderer/src/pages/TeamPage.tsx
@@ -7,6 +7,7 @@ import { HiringPipeline } from "./team/HiringPipeline";
 import type { AgentRecord, EmployeeRecord, ProviderRecord } from "../../../shared/domain";
 import type { PageProps } from "./types";
 import { activeOrgId, money } from "./types";
+import { t } from "../i18n/i18n";
 
 function text(form: FormData, key: string): string {
   return String(form.get(key) ?? "").trim();
@@ -96,32 +97,32 @@ export function TeamPage({ snapshot, actions }: PageProps) {
   return (
     <div className="page">
       <TopbarActions>
-        <Button tone="ghost" onClick={() => cycleFilter(filter, setFilter)} title="Filter">
+        <Button tone="ghost" onClick={() => cycleFilter(filter, setFilter)} title={t("Filter")}>
           <Icon name="filter" size={16} /> {filterLabel(filter)}
         </Button>
-        <Button tone="primary" onClick={openHireDialog}><Icon name="plus" size={16} /> Hire</Button>
+        <Button tone="primary" onClick={openHireDialog}><Icon name="plus" size={16} /> {t("Hire")}</Button>
       </TopbarActions>
-      <h1 className="page-h1">Team</h1>
+      <h1 className="page-h1">{t("Team")}</h1>
       <p className="page-sub">
-        {employees.length + agents.length} {employees.length + agents.length === 1 ? "member" : "members"} ·
-        {" "}{employees.length} {employees.length === 1 ? "human" : "humans"} ·
-        {" "}{agents.length} {agents.length === 1 ? "agent" : "agents"}
+        {employees.length + agents.length === 1 ? t("{n} member", { n: employees.length + agents.length }) : t("{n} members", { n: employees.length + agents.length })} ·{" "}
+        {employees.length === 1 ? t("{n} human", { n: employees.length }) : t("{n} humans", { n: employees.length })} ·{" "}
+        {agents.length === 1 ? t("{n} agent", { n: agents.length }) : t("{n} agents", { n: agents.length })}
       </p>
 
       <section className="card" style={{ padding: 32, marginBottom: 28 }}>
-        <div className="section-label">Org</div>
+        <div className="section-label">{t("Org")}</div>
         <OrgChartTree boardChair={employees[0] ?? null} agents={agents} onSelectAgent={setEditAgentId} />
       </section>
 
       <HiringPipeline agents={agents} approvals={snapshot.approvals.filter((a) => a.orgId === orgId)} />
 
-      <div className="section-label" style={{ marginBottom: 10 }}>Roster</div>
+      <div className="section-label" style={{ marginBottom: 10 }}>{t("Roster")}</div>
       <div className="card" style={{ padding: 0, overflow: "hidden" }}>
         <div
           className="table-row head"
           style={{ gridTemplateColumns: "minmax(0, 2fr) minmax(0, 1.2fr) minmax(0, 1.4fr) minmax(0, 1.4fr) 60px" }}
         >
-          <div>Member</div><div>Department</div><div>Model</div><div>Budget</div><div />
+          <div>{t("Member")}</div><div>{t("Department")}</div><div>{t("Model")}</div><div>{t("Budget")}</div><div />
         </div>
         {rosterRows.map((row, index) => (
           <RosterRow
@@ -133,58 +134,58 @@ export function TeamPage({ snapshot, actions }: PageProps) {
         ))}
       </div>
 
-      <Dialog title="Hire agent" open={hireOpen} submitLabel="Hire" onClose={() => setHireOpen(false)} onSubmit={submit}>
-        <Field label="Name"><input className="input" name="name" required /></Field>
-        <Field label="Role"><input className="input" name="role" required /></Field>
-        <Field label="Title"><input className="input" name="title" /></Field>
-        <Field label="Department"><input className="input" name="department" required /></Field>
-        <Field label="Provider">
+      <Dialog title={t("Hire agent")} open={hireOpen} submitLabel={t("Hire")} onClose={() => setHireOpen(false)} onSubmit={submit}>
+        <Field label={t("Name")}><input className="input" name="name" required /></Field>
+        <Field label={t("Role")}><input className="input" name="role" required /></Field>
+        <Field label={t("Title")}><input className="input" name="title" /></Field>
+        <Field label={t("Department")}><input className="input" name="department" required /></Field>
+        <Field label={t("Provider")}>
           <select className="input" name="modelProviderId" value={hireProviderId} onChange={(event) => updateHireProvider(event.currentTarget.value)}>
-            <option value="">Unassigned</option>
+            <option value="">{t("Unassigned")}</option>
             {providers.map((provider) => <option key={provider.id} value={provider.id}>{provider.label}</option>)}
           </select>
         </Field>
-        <Field label="Model">
+        <Field label={t("Model")}>
           <input className="input" name="modelId" list="agent-model-suggestions" value={hireModelId} onChange={(event) => setHireModelId(event.currentTarget.value)} />
         </Field>
-        <Field label="Manager">
+        <Field label={t("Manager")}>
           <select className="input" name="managerAgentId" defaultValue="">
-            <option value="">None</option>
+            <option value="">{t("None")}</option>
             {agents.map((agent) => <option key={agent.id} value={agent.id}>{agent.name} · {agent.role}</option>)}
           </select>
         </Field>
-        <Field label="Monthly budget"><input className="input" name="budget" type="number" min="0" step="1" defaultValue="250" /></Field>
-        <Field label="Seniority">
+        <Field label={t("Monthly budget")}><input className="input" name="budget" type="number" min="0" step="1" defaultValue="250" /></Field>
+        <Field label={t("Seniority")}>
           <select className="input" name="roleLevel" defaultValue="staff">
-            <option value="staff">Staff</option>
-            <option value="lead">Lead</option>
-            <option value="director">Director</option>
-            <option value="c_suite">Executive</option>
+            <option value="staff">{t("Staff")}</option>
+            <option value="lead">{t("Lead")}</option>
+            <option value="director">{t("Director")}</option>
+            <option value="c_suite">{t("Executive")}</option>
           </select>
         </Field>
       </Dialog>
 
       {editingAgent && (
-        <Dialog key={editingAgent.id} title={`Edit ${editingAgent.name}`} open submitLabel="Save" onClose={() => setEditAgentId(null)} onSubmit={submitEdit}>
-          <Field label="Role"><input className="input" name="role" defaultValue={editingAgent.role} required /></Field>
-          <Field label="Title"><input className="input" name="title" defaultValue={editingAgent.title} /></Field>
-          <Field label="Department"><input className="input" name="department" defaultValue={editingAgent.department} required /></Field>
-          <Field label="Monthly budget"><input className="input" name="budget" type="number" min="0" step="1" defaultValue={editingAgent.budgetCents / 100} /></Field>
-          <Field label="Provider">
+        <Dialog key={editingAgent.id} title={t("Edit {name}", { name: editingAgent.name })} open submitLabel={t("Save")} onClose={() => setEditAgentId(null)} onSubmit={submitEdit}>
+          <Field label={t("Role")}><input className="input" name="role" defaultValue={editingAgent.role} required /></Field>
+          <Field label={t("Title")}><input className="input" name="title" defaultValue={editingAgent.title} /></Field>
+          <Field label={t("Department")}><input className="input" name="department" defaultValue={editingAgent.department} required /></Field>
+          <Field label={t("Monthly budget")}><input className="input" name="budget" type="number" min="0" step="1" defaultValue={editingAgent.budgetCents / 100} /></Field>
+          <Field label={t("Provider")}>
             <select className="input" name="modelProviderId" defaultValue={editingAgent.modelProviderId ?? ""}>
-              <option value="">Unassigned</option>
+              <option value="">{t("Unassigned")}</option>
               {providers.map((provider) => <option key={provider.id} value={provider.id}>{provider.label}</option>)}
             </select>
           </Field>
-          <Field label="Model">
+          <Field label={t("Model")}>
             <input className="input" name="modelId" defaultValue={editingAgent.modelId ?? ""} list="agent-model-suggestions" />
           </Field>
-          <Field label="Seniority">
+          <Field label={t("Seniority")}>
             <select className="input" name="roleLevel" defaultValue={editingAgent.roleLevel}>
-              <option value="staff">Staff</option>
-              <option value="lead">Lead</option>
-              <option value="director">Director</option>
-              <option value="c_suite">Executive</option>
+              <option value="staff">{t("Staff")}</option>
+              <option value="lead">{t("Lead")}</option>
+              <option value="director">{t("Director")}</option>
+              <option value="c_suite">{t("Executive")}</option>
             </select>
           </Field>
         </Dialog>
@@ -227,7 +228,7 @@ function buildRoster(
         id: employee.id,
         name: employee.displayName,
         role: employee.role,
-        dept: "Executive",
+        dept: t("Executive"),
         model: "—",
         providerLabel: "—",
         budgetCents: null,
@@ -301,7 +302,7 @@ function RosterRow({ row, last, onEdit }: { row: RosterEntry; last: boolean; onE
         )}
       </div>
       <div style={{ textAlign: "right" }}>
-        {onEdit && <IconButton icon="edit" label={`Edit ${row.name}`} onClick={onEdit} />}
+        {onEdit && <IconButton icon="edit" label={t("Edit {name}", { name: row.name })} onClick={onEdit} />}
       </div>
     </div>
   );
@@ -314,7 +315,7 @@ function cycleFilter(current: "all" | "human" | "agent", set: (value: "all" | "h
 }
 
 function filterLabel(filter: "all" | "human" | "agent"): string {
-  if (filter === "human") return "Humans only";
-  if (filter === "agent") return "Agents only";
-  return "All";
+  if (filter === "human") return t("Humans only");
+  if (filter === "agent") return t("Agents only");
+  return t("All");
 }
diff --git a/src/renderer/src/pages/WorkPage.tsx b/src/renderer/src/pages/WorkPage.tsx
index 4bd7be7e..78ce99e4 100644
--- a/src/renderer/src/pages/WorkPage.tsx
+++ b/src/renderer/src/pages/WorkPage.tsx
@@ -25,20 +25,21 @@ import { TimelineView } from "./work/TimelineView";
 import { canRun, latestTaskRun, nextStatus, prettyRunState, providerFor, runTone } from "./work/task-helpers";
 import type { PageProps } from "./types";
 import { activeOrgId } from "./types";
+import { t } from "../i18n/i18n";
 
 type View = "board" | "list" | "timeline";
 
 const COLUMNS: ReadonlyArray<{ id: TaskStatus; label: string; tone: string }> = [
-  { id: TASK_STATUS.BACKLOG, label: "Backlog", tone: "var(--text-4)" },
-  { id: TASK_STATUS.IN_PROGRESS, label: "In progress", tone: "var(--accent)" },
-  { id: TASK_STATUS.REVIEW, label: "In review", tone: "var(--amber)" },
-  { id: TASK_STATUS.DONE, label: "Done", tone: "var(--green)" },
+  { id: TASK_STATUS.BACKLOG, label: t("Backlog"), tone: "var(--text-4)" },
+  { id: TASK_STATUS.IN_PROGRESS, label: t("In progress"), tone: "var(--accent)" },
+  { id: TASK_STATUS.REVIEW, label: t("In review"), tone: "var(--amber)" },
+  { id: TASK_STATUS.DONE, label: t("Done"), tone: "var(--green)" },
 ];
 
 const VIEW_OPTIONS: ReadonlyArray<{ id: View; label: string }> = [
-  { id: "board", label: "Board" },
-  { id: "list", label: "List" },
-  { id: "timeline", label: "Timeline" },
+  { id: "board", label: t("Board") },
+  { id: "list", label: t("List") },
+  { id: "timeline", label: t("Timeline") },
 ];
 
 export function WorkPage({ snapshot, actions }: PageProps) {
@@ -94,13 +95,13 @@ export function WorkPage({ snapshot, actions }: PageProps) {
           onPriority={setPriorityFilter}
           onAssignee={setAssigneeFilter}
         />
-        <Button tone="ghost" onClick={() => setNewGoalOpen(true)}><Icon name="plus" size={16} /> Goal</Button>
-        <Button tone="ghost" onClick={() => setNewProjectOpen(true)}><Icon name="plus" size={16} /> Project</Button>
-        <Button tone="primary" onClick={() => setNewTaskOpen(true)}><Icon name="plus" size={16} /> New task</Button>
+        <Button tone="ghost" onClick={() => setNewGoalOpen(true)}><Icon name="plus" size={16} /> {t("Goal")}</Button>
+        <Button tone="ghost" onClick={() => setNewProjectOpen(true)}><Icon name="plus" size={16} /> {t("Project")}</Button>
+        <Button tone="primary" onClick={() => setNewTaskOpen(true)}><Icon name="plus" size={16} /> {t("New task")}</Button>
       </TopbarActions>
-      <h1 className="page-h1">Work</h1>
+      <h1 className="page-h1">{t("Work")}</h1>
       <p className="page-sub">
-        {tasks.length} {tasks.length === 1 ? "task" : "tasks"} · {assigneeCount} {assigneeCount === 1 ? "assignee" : "assignees"}
+        {tasks.length === 1 ? t("{n} task", { n: tasks.length }) : t("{n} tasks", { n: tasks.length })} · {assigneeCount === 1 ? t("{n} assignee", { n: assigneeCount }) : t("{n} assignees", { n: assigneeCount })}
       </p>
 
       <ProjectOverview projects={projects} tasks={allTasks} agents={agents} workspaces={workspaces} chatSpaces={chatSpaces} />
@@ -171,22 +172,22 @@ function WorkFilter({
 }) {
   const active = priority !== "all" || assignee !== "all";
   const priorities: ReadonlyArray<{ id: TaskPriority | "all"; label: string }> = [
-    { id: "all", label: "All priorities" },
-    { id: TASK_PRIORITY.HIGH, label: "High" },
-    { id: TASK_PRIORITY.NORMAL, label: "Normal" },
-    { id: TASK_PRIORITY.LOW, label: "Low" },
+    { id: "all", label: t("All priorities") },
+    { id: TASK_PRIORITY.HIGH, label: t("High") },
+    { id: TASK_PRIORITY.NORMAL, label: t("Normal") },
+    { id: TASK_PRIORITY.LOW, label: t("Low") },
   ];
   return (
     <Popover
       trigger={({ toggle }) => (
-        <button type="button" className="button ghost" aria-label="Filter tasks" onClick={toggle}>
+        <button type="button" className="button ghost" aria-label={t("Filter tasks")} onClick={toggle}>
           <Icon name="filter" size={16} color={active ? "var(--accent)" : "currentColor"} />
         </button>
       )}
     >
       {() => (
         <>
-          <MenuLabel>Priority</MenuLabel>
+          <MenuLabel>{t("Priority")}</MenuLabel>
           {priorities.map((option) => (
             <MenuRow key={option.id} active={priority === option.id} onClick={() => onPriority(option.id)}>
               {option.label}
@@ -194,9 +195,9 @@ function WorkFilter({
             </MenuRow>
           ))}
           <MenuDivider />
-          <MenuLabel>Assignee</MenuLabel>
+          <MenuLabel>{t("Assignee")}</MenuLabel>
           <MenuRow active={assignee === "all"} onClick={() => onAssignee("all")}>
-            All assignees
+            {t("All assignees")}
             {assignee === "all" && <span className="menu-check"><Icon name="check" size={16} /></span>}
           </MenuRow>
           {agents.map((agent) => (
@@ -246,7 +247,7 @@ function BoardView({
               <span style={{ width: 8, height: 8, borderRadius: 2, background: column.tone, flexShrink: 0 }} />
               <span style={{ fontSize: 12, fontWeight: 540 }}>{column.label}</span>
               <span className="num" style={{ fontSize: 12, color: "var(--text-3)" }}>{columnTasks.length}</span>
-              <IconButton icon="plus" label="Add task" onClick={onCreate} />
+              <IconButton icon="plus" label={t("Add task")} onClick={onCreate} />
             </div>
             {columnTasks.map((task) => (
               <TaskCard
@@ -334,8 +335,8 @@ function TaskCard({
         {latestRun && <Pill tone={runTone(latestRun.state)}>{prettyRunState(latestRun.state)}</Pill>}
         <div style={{ marginLeft: "auto", display: "flex", gap: 8, alignItems: "center" }} onClick={(event) => event.stopPropagation()}>
           {assignee && <Avatar name={assignee.name} size="sm" bot />}
-          {assignee && <IconButton icon="send" label={canRun(provider) ? `Run ${task.title}` : "Connect a provider to run"} onClick={onRun} disabled={!canRun(provider)} />}
-          {nextStatus(task.status) && <IconButton icon="check" label="Advance" onClick={onAdvance} />}
+          {assignee && <IconButton icon="send" label={canRun(provider) ? t("Run {title}", { title: task.title }) : t("Connect a provider to run")} onClick={onRun} disabled={!canRun(provider)} />}
+          {nextStatus(task.status) && <IconButton icon="check" label={t("Advance")} onClick={onAdvance} />}
         </div>
       </div>
     </div>
diff --git a/src/renderer/src/pages/chat/ChatComposer.tsx b/src/renderer/src/pages/chat/ChatComposer.tsx
index ff8e2b2c..b81f53b4 100644
--- a/src/renderer/src/pages/chat/ChatComposer.tsx
+++ b/src/renderer/src/pages/chat/ChatComposer.tsx
@@ -3,6 +3,7 @@ import { Button, Icon, IconButton } from "../../shared/ui";
 import type { AgentRecord, EmployeeRecord, FileObjectRecord } from "../../../../shared/domain";
 import { SLASH_COMMANDS } from "./chat-helpers";
 import { MentionTextarea } from "./MentionTextarea";
+import { t } from "../../i18n/i18n";
 
 export function ChatComposer({
   disabled,
@@ -50,22 +51,22 @@ export function ChatComposer({
           name="message"
           rows={2}
           disabled={disabled}
-          ariaLabel="Message"
+          ariaLabel={t("Message")}
           agents={agents}
           employees={employees}
           textareaRef={ref}
           style={{ minHeight: 38 }}
         />
         <div className="row" style={{ paddingTop: 6, borderTop: "1px solid var(--border-soft)", gap: 4 }}>
-          <IconButton icon="attach" label="Attach file" onClick={onAttach} disabled={disabled} />
-          <IconButton icon="sparkle" label="Commands" onClick={() => setSlashOpen((open) => !open)} />
+          <IconButton icon="attach" label={t("Attach file")} onClick={onAttach} disabled={disabled} />
+          <IconButton icon="sparkle" label={t("Commands")} onClick={() => setSlashOpen((open) => !open)} />
           {attachment && (
             <span className="pill" style={{ maxWidth: 220 }}>
               <Icon name="file" size={14} />
               <span style={{ overflow: "hidden", textOverflow: "ellipsis", whiteSpace: "nowrap" }}>{attachment.name}</span>
               <button
                 type="button"
-                aria-label="Remove attachment"
+                aria-label={t("Remove attachment")}
                 onClick={() => onAttachmentChange("")}
                 style={{ display: "inline-flex", border: 0, background: "transparent", padding: 0, color: "var(--text-3)", cursor: "pointer" }}
               >
@@ -75,7 +76,7 @@ export function ChatComposer({
           )}
           <div style={{ marginLeft: "auto", display: "flex", alignItems: "center", gap: 6 }}>
             <span className="mono" style={{ fontSize: 12, color: "var(--text-3)" }}>Ctrl+Enter</span>
-            <Button tone="primary" size="small" type="submit" disabled={disabled}><Icon name="send" size={12} /> Send</Button>
+            <Button tone="primary" size="small" type="submit" disabled={disabled}><Icon name="send" size={12} /> {t("Send")}</Button>
           </div>
         </div>
         {slashOpen && (
diff --git a/src/renderer/src/pages/chat/ChatConversation.tsx b/src/renderer/src/pages/chat/ChatConversation.tsx
index 23197e86..28fbd75a 100644
--- a/src/renderer/src/pages/chat/ChatConversation.tsx
+++ b/src/renderer/src/pages/chat/ChatConversation.tsx
@@ -12,6 +12,7 @@ import type {
 import { ChatComposer } from "./ChatComposer";
 import { ChatTimeline } from "./ChatTimeline";
 import type { MessageContext } from "./chat-helpers";
+import { t } from "../../i18n/i18n";
 
 export function ChatConversation({
   space,
@@ -142,7 +143,7 @@ function ConversationHeader({
           <input
             className="input"
             autoFocus
-            aria-label="Search messages"
+            aria-label={t("Search messages")}
             value={query}
             onChange={(event) => onQueryChange(event.target.value)}
             onKeyDown={(event) => { if (event.key === "Escape") toggleSearch(); }}
@@ -150,7 +151,7 @@ function ConversationHeader({
           />
         )}
         {!searchOpen && participants.length > 0 && <AvatarStack names={participants.slice(0, 5)} bot />}
-        <IconButton icon="search" label="Search" onClick={toggleSearch} />
+        <IconButton icon="search" label={t("Search")} onClick={toggleSearch} />
       </div>
     </header>
   );
diff --git a/src/renderer/src/pages/chat/ChatMessageRow.tsx b/src/renderer/src/pages/chat/ChatMessageRow.tsx
index 5254e8c4..ff993b96 100644
--- a/src/renderer/src/pages/chat/ChatMessageRow.tsx
+++ b/src/renderer/src/pages/chat/ChatMessageRow.tsx
@@ -9,6 +9,7 @@ import type {
 } from "../../../../shared/domain";
 import { formatTime } from "../types";
 import { messageAttachments, senderName, type MessageContext } from "./chat-helpers";
+import { t } from "../../i18n/i18n";
 
 export function ChatMessageRow({
   message,
@@ -54,11 +55,11 @@ export function ChatMessageRow({
         <div className="row" style={{ alignItems: "baseline", gap: 8, marginBottom: 2 }}>
           <span style={{ fontSize: 14, fontWeight: 540 }}>{name}</span>
           <span className="mono" style={{ fontSize: 12, color: "var(--text-3)" }}>{formatTime(message.createdAt)}</span>
-          {message.editedAt && !deleted && <span style={{ fontSize: 12, color: "var(--text-3)" }}>(edited)</span>}
+          {message.editedAt && !deleted && <span style={{ fontSize: 12, color: "var(--text-3)" }}>{t("(edited)")}</span>}
           {canModify && !editing && (
             <span style={{ marginLeft: "auto", display: "flex", gap: 2 }}>
-              <IconButton icon="edit" label="Edit message" size={16} onClick={() => setEditing(true)} />
-              <IconButton icon="x" label="Delete message" size={16} onClick={onDelete} />
+              <IconButton icon="edit" label={t("Edit message")} size={16} onClick={() => setEditing(true)} />
+              <IconButton icon="x" label={t("Delete message")} size={16} onClick={onDelete} />
             </span>
           )}
         </div>
@@ -68,20 +69,20 @@ export function ChatMessageRow({
           </div>
         )}
         {deleted ? (
-          <div style={{ fontSize: 14, color: "var(--text-3)", fontStyle: "italic" }}>Message deleted</div>
+          <div style={{ fontSize: 14, color: "var(--text-3)", fontStyle: "italic" }}>{t("Message deleted")}</div>
         ) : editing ? (
           <form onSubmit={submitEdit}>
             <textarea
               name="body"
               defaultValue={message.bodyMd}
               autoFocus
-              aria-label="Edit message"
+              aria-label={t("Edit message")}
               className="input"
               style={{ minHeight: 60, marginBottom: 6 }}
             />
             <div className="row" style={{ gap: 6 }}>
-              <Button tone="primary" size="small" type="submit">Save</Button>
-              <Button tone="ghost" size="small" onClick={() => setEditing(false)}>Cancel</Button>
+              <Button tone="primary" size="small" type="submit">{t("Save")}</Button>
+              <Button tone="ghost" size="small" onClick={() => setEditing(false)}>{t("Cancel")}</Button>
             </div>
           </form>
         ) : (
@@ -121,7 +122,7 @@ function renderBody(body: string, mentions: ChatMentionRecord[], context: Messag
     parts.push(
       <span
         key={`m-${mention.messageId}-${mention.offsetStart}`}
-        title={failed ? "Agent could not be reached" : undefined}
+        title={failed ? t("Agent could not be reached") : undefined}
         style={{
           background: failed ? "rgba(255,100,80,0.1)" : "var(--accent-soft)",
           color: failed ? "var(--text-3)" : "var(--accent)",
@@ -175,8 +176,8 @@ function mentionLabel(mention: ChatMentionRecord, context: MessageContext): stri
     if (!agent) throw new Error("Message mention agent target is missing.");
     return agent.name;
   }
-  if (mention.targetType === "board") return "Board";
-  if (mention.targetType === "org_group" && mention.targetId.endsWith(":oncall")) return "OnCall";
+  if (mention.targetType === "board") return t("Board");
+  if (mention.targetType === "org_group" && mention.targetId.endsWith(":oncall")) return t("OnCall");
   throw new Error("Message mention target type is unsupported.");
 }
 
@@ -213,13 +214,13 @@ function AttachmentCard({ file, handoff = false, onOpen }: { file: FileObjectRec
           <span style={{ fontSize: 12, fontWeight: 540, overflow: "hidden", textOverflow: "ellipsis", whiteSpace: "nowrap" }}>{file.name}</span>
           {handoff && (
             <span className="pill violet" style={{ flexShrink: 0 }}>
-              <Icon name="bot" size={10} /> AI → AI
+              <Icon name="bot" size={10} /> {t("AI → AI")}
             </span>
           )}
         </div>
         <div style={{ fontSize: 12, color: "var(--text-3)" }}>{file.kind.toUpperCase()}</div>
       </div>
-      {canOpen && <IconButton icon="arrowUpRight" label={`Open ${file.name}`} onClick={onOpen ?? undefined} />}
+      {canOpen && <IconButton icon="arrowUpRight" label={t("Open {name}", { name: file.name })} onClick={onOpen ?? undefined} />}
     </div>
   );
 }
diff --git a/src/renderer/src/pages/chat/ChatSidebar.tsx b/src/renderer/src/pages/chat/ChatSidebar.tsx
index 72c3534e..a56400e8 100644
--- a/src/renderer/src/pages/chat/ChatSidebar.tsx
+++ b/src/renderer/src/pages/chat/ChatSidebar.tsx
@@ -2,6 +2,7 @@ import { Avatar, Icon, IconButton } from "../../shared/ui";
 import type { ChatPresenceRecord } from "../../../../shared/domain";
 import { formatRelative } from "../types";
 import type { ConversationItem } from "./chat-helpers";
+import { t } from "../../i18n/i18n";
 
 function presenceColor(status: string | undefined): string | null {
   switch (status) {
@@ -40,8 +41,8 @@ export function ChatSidebar({
   return (
     <aside className="secondary-pane">
       <div className="row" style={{ padding: "4px 8px 12px" }}>
-        <div style={{ fontSize: 14, fontWeight: 600 }}>Messages</div>
-        <IconButton icon="plus" label="New space" onClick={onCreateSpace} />
+        <div style={{ fontSize: 14, fontWeight: 600 }}>{t("Messages")}</div>
+        <IconButton icon="plus" label={t("New space")} onClick={onCreateSpace} />
       </div>
       <div className="pane-scroll">
         <div style={{ display: "flex", flexDirection: "column", gap: 1 }}>
diff --git a/src/renderer/src/pages/chat/ChatTimeline.tsx b/src/renderer/src/pages/chat/ChatTimeline.tsx
index f11d539d..a361970e 100644
--- a/src/renderer/src/pages/chat/ChatTimeline.tsx
+++ b/src/renderer/src/pages/chat/ChatTimeline.tsx
@@ -10,6 +10,7 @@ import type {
 } from "../../../../shared/domain";
 import { ChatMessageRow } from "./ChatMessageRow";
 import { formatDay, type MessageContext } from "./chat-helpers";
+import { t } from "../../i18n/i18n";
 
 const WINDOW_SIZE = 150;
 const EMPTY_ATTACHMENTS: ChatAttachmentRecord[] = [];
@@ -70,7 +71,7 @@ export function ChatTimeline({
     elements.push(
       <div key="show-earlier" style={{ display: "flex", justifyContent: "center", marginBottom: 16 }}>
         <Button size="small" onClick={() => setVisibleCount((count) => count + WINDOW_SIZE)}>
-          Show earlier messages
+          {t("Show earlier messages")}
         </Button>
       </div>,
     );
@@ -121,14 +122,14 @@ function ApprovalInline({ approval, onApprove, onDecline }: { approval: Approval
     <div style={{ margin: "14px 0 18px 44px", maxWidth: 480, border: "1px solid var(--border-strong)", borderRadius: 12, background: "var(--panel)", padding: 14 }}>
       <div className="row" style={{ marginBottom: 8 }}>
         <Icon name="approve" size={14} color="var(--amber)" />
-        <span style={{ fontSize: 12, color: "var(--amber)", fontWeight: 540 }}>Approval needed</span>
+        <span style={{ fontSize: 12, color: "var(--amber)", fontWeight: 540 }}>{t("Approval needed")}</span>
         <Pill tone={approval.risk === "high" ? "red" : approval.risk === "medium" ? "amber" : undefined}>{approval.risk}</Pill>
       </div>
       <div style={{ fontSize: 14, fontWeight: 540, marginBottom: 4 }}>{approval.title}</div>
       <div style={{ fontSize: 12, color: "var(--text-3)", marginBottom: 12, lineHeight: 1.5 }}>{approval.details}</div>
       <div className="row" style={{ gap: 6 }}>
-        <Button tone="primary" size="small" onClick={onApprove}>Approve</Button>
-        <Button size="small" onClick={onDecline}>Decline</Button>
+        <Button tone="primary" size="small" onClick={onApprove}>{t("Approve")}</Button>
+        <Button size="small" onClick={onDecline}>{t("Decline")}</Button>
       </div>
     </div>
   );
diff --git a/src/renderer/src/pages/chat/chat-helpers.ts b/src/renderer/src/pages/chat/chat-helpers.ts
index da3eb818..fd7f650e 100644
--- a/src/renderer/src/pages/chat/chat-helpers.ts
+++ b/src/renderer/src/pages/chat/chat-helpers.ts
@@ -9,6 +9,7 @@ import type {
   EmployeeRecord,
   FileObjectRecord,
 } from "../../../../shared/domain";
+import { t } from "../../i18n/i18n";
 
 export interface MessageContext {
   employees: EmployeeRecord[];
@@ -26,8 +27,8 @@ export function senderName(message: ChatMessageRecord, context: MessageContext):
     if (!agent) throw new Error("Message agent sender is missing.");
     return agent.name;
   }
-  if (message.senderType === "board") return "Board";
-  return "System";
+  if (message.senderType === "board") return t("Board");
+  return t("System");
 }
 
 export function messageAttachments(
@@ -172,7 +173,7 @@ function resolveCounterpart(
 }
 
 function previewText(message: ChatMessageRecord): string {
-  if (message.deletedAt) return "Message deleted";
+  if (message.deletedAt) return t("Message deleted");
   const firstLine = message.bodyMd.split("\n").find((line) => line.trim()) ?? "";
   return firstLine.trim();
 }
@@ -181,10 +182,10 @@ export function formatDay(iso: string): string {
   const date = new Date(iso);
   if (Number.isNaN(date.getTime())) return "—";
   const today = new Date();
-  if (sameDay(date, today)) return "Today";
+  if (sameDay(date, today)) return t("Today");
   const yesterday = new Date(today);
   yesterday.setDate(yesterday.getDate() - 1);
-  if (sameDay(date, yesterday)) return "Yesterday";
+  if (sameDay(date, yesterday)) return t("Yesterday");
   return date.toLocaleDateString(undefined, { weekday: "short", month: "short", day: "numeric" });
 }
 
diff --git a/src/renderer/src/pages/connectors/ConnectedList.tsx b/src/renderer/src/pages/connectors/ConnectedList.tsx
index cf400b7b..1f7c546d 100644
--- a/src/renderer/src/pages/connectors/ConnectedList.tsx
+++ b/src/renderer/src/pages/connectors/ConnectedList.tsx
@@ -1,6 +1,7 @@
 import { Button, IconButton, Pill } from "../../shared/ui";
 import type { AgentRecord, ConnectorAccountRecord, ConnectorGrantRecord } from "../../../../shared/domain";
 import { ToolkitTile } from "./ToolkitCatalog";
+import { t } from "../../i18n/i18n";
 
 const STATUS_TONE: Record<string, "green" | "amber" | "red" | undefined> = {
   ACTIVE: "green",
@@ -41,7 +42,7 @@ export function ConnectedList({
   const agentNames = new Map(agents.map((agent) => [agent.id, agent.name]));
   return (
     <section style={{ marginBottom: 24 }}>
-      <div className="section-label" style={{ marginBottom: 12 }}>Connected</div>
+      <div className="section-label" style={{ marginBottom: 12 }}>{t("Connected")}</div>
       <div style={{ display: "flex", flexDirection: "column", gap: 10 }}>
         {accounts.map((account) => {
           const holders = grants
@@ -62,11 +63,11 @@ export function ConnectedList({
                 <Pill tone={STATUS_TONE[account.status]} dot>{account.status.charAt(0) + account.status.slice(1).toLowerCase()}</Pill>
                 <span className="row" style={{ gap: 6, marginLeft: "auto" }}>
                   <Button size="small" disabled={busy} onClick={() => onReconnect(account.toolkitSlug)}>
-                    {busySlug === account.toolkitSlug && busyAction === "connect" ? "Opening…" : "Reconnect"}
+                    {busySlug === account.toolkitSlug && busyAction === "connect" ? t("Opening…") : t("Reconnect")}
                   </Button>
                   <IconButton
                     icon="x"
-                    label={`Delete ${account.toolkitName} connection`}
+                    label={t("Delete {name} connection", { name: account.toolkitName })}
                     disabled={busy}
                     onClick={() => onDelete(account.toolkitSlug)}
                   />
diff --git a/src/renderer/src/pages/connectors/ToolkitCatalog.tsx b/src/renderer/src/pages/connectors/ToolkitCatalog.tsx
index e913d154..1841918b 100644
--- a/src/renderer/src/pages/connectors/ToolkitCatalog.tsx
+++ b/src/renderer/src/pages/connectors/ToolkitCatalog.tsx
@@ -1,6 +1,7 @@
 import { useMemo, useState } from "react";
 import { Button, Icon, Pill } from "../../shared/ui";
 import type { ConnectorCatalogEntry } from "../../../../shared/commands";
+import { t } from "../../i18n/i18n";
 
 /** Deterministic tile color for a toolkit's letter glyph. */
 const TILE_COLORS = ["#5e6ad2", "#3b82a0", "#7c5cb0", "#3f8f5f", "#b0684f", "#a05c86", "#6f7d3d", "#4f6fb0"];
@@ -65,14 +66,14 @@ export function ToolkitCatalog({
   return (
     <section>
       <div className="row" style={{ marginBottom: 12, gap: 10 }}>
-        <div className="section-label" style={{ flex: 1 }}>Catalog</div>
+        <div className="section-label" style={{ flex: 1 }}>{t("Catalog")}</div>
         <div className="row" style={{ gap: 6, background: "var(--panel-2)", borderRadius: 8, padding: "5px 10px", width: 240 }}>
           <Icon name="search" size={13} color="var(--text-3)" />
           <input
-            aria-label="Search connectors"
+            aria-label={t("Search connectors")}
             value={query}
             onChange={(event) => setQuery(event.target.value)}
-            placeholder="Search connectors"
+            placeholder={t("Search connectors")}
             style={{ border: 0, outline: 0, background: "transparent", fontSize: 13, flex: 1, minWidth: 0, color: "var(--text-1)" }}
           />
         </div>
@@ -98,10 +99,10 @@ export function ToolkitCatalog({
                 {entry.name}
               </span>
               {connected ? (
-                <Pill tone="green" dot>Connected</Pill>
+                <Pill tone="green" dot>{t("Connected")}</Pill>
               ) : (
                 <Button size="small" disabled={busySlug !== null} onClick={() => onConnect(entry.slug)}>
-                  {busySlug === entry.slug ? "Opening…" : "Connect"}
+                  {busySlug === entry.slug ? t("Opening…") : t("Connect")}
                 </Button>
               )}
             </div>
diff --git a/src/renderer/src/pages/files/FilesGrid.tsx b/src/renderer/src/pages/files/FilesGrid.tsx
index 23510a13..1d0bf5bc 100644
--- a/src/renderer/src/pages/files/FilesGrid.tsx
+++ b/src/renderer/src/pages/files/FilesGrid.tsx
@@ -8,6 +8,7 @@ import type {
 import { formatRelative } from "../types";
 import { FileIcon, ScanLabelStrip } from "./FileVisuals";
 import { fileGrantCount, isAgentOwner, resolveOwnerName, shortChecksum, shortObjectRef } from "./file-helpers";
+import { t } from "../../i18n/i18n";
 
 export function FilesGrid({
   files,
@@ -77,7 +78,7 @@ export function PinnedCard({
         <FileIcon kind={file.kind} big />
         <button
           type="button"
-          aria-label={file.pinned ? "Unpin" : "Pin"}
+          aria-label={file.pinned ? t("Unpin") : t("Pin")}
           onClick={(event) => { event.stopPropagation(); onUnpin(); }}
           style={{ marginLeft: "auto", padding: 4, border: 0, background: "transparent", color: file.pinned ? "var(--accent)" : "var(--text-4)", cursor: "pointer" }}
         >
@@ -91,7 +92,7 @@ export function PinnedCard({
         sha:{shortChecksum(file.sha256)} · obj:{shortObjectRef(file.storagePath)}
       </div>
       <div className="row" style={{ gap: 6 }}>
-        <Pill tone={file.scanState === "approved" ? "green" : "red"}>{file.scanState === "approved" ? "Clean" : "Blocked"}</Pill>
+        <Pill tone={file.scanState === "approved" ? "green" : "red"}>{file.scanState === "approved" ? t("Clean") : t("Blocked")}</Pill>
         <span className="mono" style={{ color: "var(--text-3)", fontSize: 12 }}>{grantCount}</span>
       </div>
       <ScanLabelStrip file={file} />
diff --git a/src/renderer/src/pages/files/FilesTable.tsx b/src/renderer/src/pages/files/FilesTable.tsx
index 47f63d43..e3fe9c78 100644
--- a/src/renderer/src/pages/files/FilesTable.tsx
+++ b/src/renderer/src/pages/files/FilesTable.tsx
@@ -9,6 +9,7 @@ import type {
 import { formatBytes, formatRelative } from "../types";
 import { FileIcon } from "./FileVisuals";
 import { fileGrantCount, isAgentOwner, resolveOwnerName, shortChecksum, shortObjectRef } from "./file-helpers";
+import { t } from "../../i18n/i18n";
 
 const ROW_COLUMNS = "minmax(0, 2.7fr) minmax(70px, 0.7fr) minmax(0, 1.2fr) minmax(94px, 0.8fr) minmax(88px, 0.8fr) 56px";
 
@@ -30,7 +31,7 @@ export function FilesTable({
   return (
     <div className="card" style={{ padding: 0, overflow: "hidden" }}>
       <div className="table-row head" style={{ gridTemplateColumns: ROW_COLUMNS }}>
-        <div>Name</div><div>Size</div><div>Owner</div><div>Access</div><div>Modified</div><div />
+        <div>{t("Name")}</div><div>{t("Size")}</div><div>{t("Owner")}</div><div>{t("Access")}</div><div>{t("Modified")}</div><div />
       </div>
       {files.map((file, index) => (
         <FileRow
@@ -80,7 +81,7 @@ function FileRow({
             sha:{shortChecksum(file.sha256)} · obj:{shortObjectRef(file.storagePath)}
           </span>
         </div>
-        {file.pinned && <Pill tone="violet" dot>Pinned</Pill>}
+        {file.pinned && <Pill tone="violet" dot>{t("Pinned")}</Pill>}
       </div>
       <div className="num mono" style={{ color: "var(--text-3)", fontSize: 12 }}>{formatBytes(file.sizeBytes)}</div>
       <div className="row" style={{ gap: 8, minWidth: 0 }}>
@@ -88,16 +89,16 @@ function FileRow({
         <span style={{ color: "var(--text-2)", overflow: "hidden", textOverflow: "ellipsis", whiteSpace: "nowrap" }}>{owner}</span>
       </div>
       <div className="row" style={{ gap: 6, minWidth: 0 }}>
-        <Pill tone={canOpen ? "green" : "red"}>{canOpen ? "Clean" : "Blocked"}</Pill>
+        <Pill tone={canOpen ? "green" : "red"}>{canOpen ? t("Clean") : t("Blocked")}</Pill>
         <span className="mono" style={{ color: "var(--text-3)", fontSize: 12 }}>{grantCount}</span>
       </div>
       <div style={{ color: "var(--text-3)", fontSize: 12 }}>{formatRelative(file.updatedAt ?? file.createdAt)}</div>
       <div style={{ textAlign: "right" }} onClick={(event) => event.stopPropagation()}>
-        <Popover trigger={({ toggle }) => <IconButton icon="more" label={`Actions for ${file.name}`} onClick={toggle} />}>
+        <Popover trigger={({ toggle }) => <IconButton icon="more" label={t("Actions for {name}", { name: file.name })} onClick={toggle} />}>
           {(close) => (
             <>
-              {canOpen && <MenuRow onClick={() => { onOpen(); close(); }}>Open</MenuRow>}
-              <MenuRow onClick={() => { onTogglePin(); close(); }}>{file.pinned ? "Unpin" : "Pin"}</MenuRow>
+              {canOpen && <MenuRow onClick={() => { onOpen(); close(); }}>{t("Open")}</MenuRow>}
+              <MenuRow onClick={() => { onTogglePin(); close(); }}>{file.pinned ? t("Unpin") : t("Pin")}</MenuRow>
             </>
           )}
         </Popover>
diff --git a/src/renderer/src/pages/files/FilesTree.tsx b/src/renderer/src/pages/files/FilesTree.tsx
index 127b87af..6418326f 100644
--- a/src/renderer/src/pages/files/FilesTree.tsx
+++ b/src/renderer/src/pages/files/FilesTree.tsx
@@ -1,6 +1,7 @@
 import { Icon } from "../../shared/ui";
 import type { AgentRecord, FileObjectRecord } from "../../../../shared/domain";
 import { isRecent, type Section } from "./file-helpers";
+import { t } from "../../i18n/i18n";
 
 export function FilesTree({
   files,
@@ -20,31 +21,31 @@ export function FilesTree({
   const recent = files.filter((file) => isRecent(file.createdAt));
   return (
     <aside style={{ overflowY: "auto", minHeight: 0, paddingBottom: 40 }}>
-      <div className="section-label">Library</div>
+      <div className="section-label">{t("Library")}</div>
       <TreeItem
         icon="folder"
-        label="All files"
+        label={t("All files")}
         count={files.length}
         active={section.kind === "all"}
         onClick={() => onChange({ kind: "all" })}
       />
       <TreeItem
         icon="sparkle"
-        label="Recent"
+        label={t("Recent")}
         count={recent.length}
         active={section.kind === "recent"}
         onClick={() => onChange({ kind: "recent" })}
       />
       <TreeItem
         icon="pin"
-        label="Pinned"
+        label={t("Pinned")}
         count={pinnedFiles.length}
         active={section.kind === "pinned"}
         onClick={() => onChange({ kind: "pinned" })}
       />
       {departments.length > 0 && (
         <>
-          <div className="section-label" style={{ marginTop: 22 }}>Spaces</div>
+          <div className="section-label" style={{ marginTop: 22 }}>{t("Spaces")}</div>
           {departments.map((department) => (
             <TreeItem
               key={department.name}
@@ -59,7 +60,7 @@ export function FilesTree({
       )}
       {filesByAgent.length > 0 && (
         <>
-          <div className="section-label" style={{ marginTop: 22 }}>By agent</div>
+          <div className="section-label" style={{ marginTop: 22 }}>{t("By agent")}</div>
           {filesByAgent.map(({ agent, count }) => (
             <TreeItem
               key={agent.id}
diff --git a/src/renderer/src/pages/files/file-helpers.ts b/src/renderer/src/pages/files/file-helpers.ts
index edac1934..7d2d64dc 100644
--- a/src/renderer/src/pages/files/file-helpers.ts
+++ b/src/renderer/src/pages/files/file-helpers.ts
@@ -4,6 +4,7 @@ import type {
   FileAccessGrantRecord,
   FileObjectRecord,
 } from "../../../../shared/domain";
+import { t } from "../../i18n/i18n";
 
 export type ViewMode = "grid" | "list";
 
@@ -100,13 +101,13 @@ export function resolveOwnerName(file: FileObjectRecord, employees: EmployeeReco
     const agent = agents.find((item) => item.id === file.ownerId);
     if (agent) return agent.name;
   }
-  return "System";
+  return t("System");
 }
 
 export function labelFor(section: Section): string {
-  if (section.kind === "all") return "All files";
-  if (section.kind === "recent") return "Recent";
-  if (section.kind === "pinned") return "Pinned";
-  if (section.kind === "agent") return "By agent";
+  if (section.kind === "all") return t("All files");
+  if (section.kind === "recent") return t("Recent");
+  if (section.kind === "pinned") return t("Pinned");
+  if (section.kind === "agent") return t("By agent");
   return section.value;
 }
diff --git a/src/renderer/src/pages/home/DashboardCharts.tsx b/src/renderer/src/pages/home/DashboardCharts.tsx
index 0773fff3..e83759c5 100644
--- a/src/renderer/src/pages/home/DashboardCharts.tsx
+++ b/src/renderer/src/pages/home/DashboardCharts.tsx
@@ -1,6 +1,7 @@
 import { useState, type ReactNode } from "react";
 import type { AgentRecord, TaskRecord, TaskRunRecord } from "../../../../shared/domain";
 import { TASK_STATUS } from "../../../../shared/domain";
+import { t } from "../../i18n/i18n";
 
 const CHART_H = 116;
 const CHART_W = 260;
@@ -29,10 +30,10 @@ export function AgentWorkloadChart({ agents, tasks }: { agents: AgentRecord[]; t
   const max = Math.max(1, ...data.map((d) => d.count));
   const barW = data.length > 0 ? (CHART_W - (data.length - 1) * BAR_GAP) / data.length : 0;
   const [hover, setHover] = useState<number | null>(null);
-  const readout = hover !== null && data[hover] ? `${data[hover]!.name} · ${data[hover]!.count}` : `${total} open`;
+  const readout = hover !== null && data[hover] ? `${data[hover]!.name} · ${data[hover]!.count}` : t("{n} open", { n: total });
 
   return (
-    <ChartCard title="Agent workload" readout={readout}>
+    <ChartCard title={t("Agent workload")} readout={readout}>
       <svg viewBox={`0 0 ${CHART_W} ${CHART_H}`} style={{ width: "100%", height: CHART_H }}>
         {data.map((d, i) => {
           const h = (d.count / max) * (CHART_H - 22);
@@ -65,10 +66,10 @@ export function RunActivityChart({ taskRuns }: { taskRuns: TaskRunRecord[] }) {
   const max = Math.max(1, ...buckets.map((b) => b.count));
   const barW = (CHART_W - 6 * BAR_GAP) / 7;
   const [hover, setHover] = useState<number | null>(null);
-  const readout = hover !== null && buckets[hover] ? `${buckets[hover]!.label} · ${buckets[hover]!.count}` : `${total} this week`;
+  const readout = hover !== null && buckets[hover] ? `${buckets[hover]!.label} · ${buckets[hover]!.count}` : t("{n} this week", { n: total });
 
   return (
-    <ChartCard title="Run activity" readout={readout}>
+    <ChartCard title={t("Run activity")} readout={readout}>
       <svg viewBox={`0 0 ${CHART_W} ${CHART_H}`} style={{ width: "100%", height: CHART_H }}>
         {buckets.map((b, i) => {
           const h = (b.count / max) * (CHART_H - 24);
@@ -104,7 +105,7 @@ export function SuccessRateChart({ taskRuns }: { taskRuns: TaskRunRecord[] }) {
   const offset = circumference - (rate / 100) * circumference;
 
   return (
-    <ChartCard title="Success rate" readout={`${completed} ok · ${failed} failed`}>
+    <ChartCard title={t("Success rate")} readout={t("{ok} ok · {failed} failed", { ok: completed, failed })}>
       <svg viewBox="0 0 100 100" style={{ width: 96, height: 96, margin: "4px auto", display: "block" }}>
         <circle cx="50" cy="50" r="42" fill="none" stroke="var(--panel-3)" strokeWidth="8" />
         <circle
@@ -140,10 +141,10 @@ export function CostTrendChart({ providerRequests }: { providerRequests: Array<{
   const [hover, setHover] = useState<number | null>(null);
   const readout = hover !== null && charBuckets[hover]
     ? `${charBuckets[hover]!.label} · ${kchars(charBuckets[hover]!.chars)}`
-    : `${kchars(totalChars)} this week`;
+    : t("{n} this week", { n: kchars(totalChars) });
 
   return (
-    <ChartCard title="Token usage" readout={readout}>
+    <ChartCard title={t("Token usage")} readout={readout}>
       <svg viewBox={`0 0 ${CHART_W} ${CHART_H}`} style={{ width: "100%", height: CHART_H }}>
         <polyline points={points} fill="none" stroke="var(--accent)" strokeWidth="2" strokeLinejoin="round" strokeLinecap="round" />
         {coords.map((c, i) => (
@@ -163,16 +164,17 @@ function kchars(chars: number): string {
   return String(chars);
 }
 
+const weekdayFormat = new Intl.DateTimeFormat(undefined, { weekday: "short" });
+
 function last7DayBuckets(dates: string[]): Array<{ label: string; count: number }> {
   const now = Date.now();
-  const dayNames = ["Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"];
   return Array.from({ length: 7 }, (_, i) => {
     const offset = 6 - i;
     const start = new Date(now - offset * 86400000);
     start.setHours(0, 0, 0, 0);
     const end = new Date(start.getTime() + 86400000);
     const count = dates.filter((d) => { const t = new Date(d).getTime(); return t >= start.getTime() && t < end.getTime(); }).length;
-    return { label: dayNames[start.getDay()] ?? "", count };
+    return { label: weekdayFormat.format(start), count };
   });
 }
 
diff --git a/src/renderer/src/pages/office/AgentDetailCard.tsx b/src/renderer/src/pages/office/AgentDetailCard.tsx
index 6ddade5c..012a3088 100644
--- a/src/renderer/src/pages/office/AgentDetailCard.tsx
+++ b/src/renderer/src/pages/office/AgentDetailCard.tsx
@@ -1,12 +1,13 @@
 import { Avatar, Icon, IconButton, Pill } from "../../shared/ui";
 import { humanizeToken } from "../types";
+import { t } from "../../i18n/i18n";
 import type { AgentActivity, OfficeAgentInput } from "./office-types";
 
 const ACTIVITY_LABEL: Record<AgentActivity, string> = {
-  active: "Active",
-  thinking: "Thinking",
-  busy: "Busy",
-  idle: "Idle",
+  active: t("Active"),
+  thinking: t("Thinking"),
+  busy: t("Busy"),
+  idle: t("Idle"),
 };
 
 const ACTIVITY_TONE: Record<AgentActivity, "green" | "violet" | "amber" | undefined> = {
@@ -21,7 +22,7 @@ export function AgentDetailCard({ agent, onClose }: { agent: OfficeAgentInput; o
   return (
     <div
       role="dialog"
-      aria-label={`Agent ${agent.name}`}
+      aria-label={t("Agent {name}", { name: agent.name })}
       style={{
         position: "absolute",
         top: 16,
@@ -40,7 +41,7 @@ export function AgentDetailCard({ agent, onClose }: { agent: OfficeAgentInput; o
           <div style={{ fontSize: 14, fontWeight: 600, lineHeight: 1.3, wordBreak: "break-word" }}>{agent.name}</div>
           <div style={{ fontSize: 12, color: "var(--text-2)", marginTop: 1, wordBreak: "break-word" }}>{agent.title}</div>
         </div>
-        <IconButton icon="x" label="Close agent details" onClick={onClose} />
+        <IconButton icon="x" label={t("Close agent details")} onClick={onClose} />
       </div>
       <div className="row" style={{ gap: 6, marginTop: 10, flexWrap: "wrap" }}>
         <Pill>{agent.department}</Pill>
diff --git a/src/renderer/src/pages/office/floor-plan.ts b/src/renderer/src/pages/office/floor-plan.ts
index cefb207b..e1d3e252 100644
--- a/src/renderer/src/pages/office/floor-plan.ts
+++ b/src/renderer/src/pages/office/floor-plan.ts
@@ -1,4 +1,5 @@
 import type { AmenitySpot, DeskSlot, FloorPlan, LaneGraph, Rect, RoomSpec, Vec } from "./office-types";
+import { t } from "../../i18n/i18n";
 
 /**
  * Fixed-size world geometry (logical px). The office is a north band of rooms
@@ -45,10 +46,10 @@ const CORRIDOR_PLANTS: Rect[] = [
 ];
 
 const ROOMS: RoomSpec[] = [
-  { kind: "ceo", label: "CEO OFFICE", bounds: { x: 16, y: ROOM_TOP, w: 288, h: 256 }, doorCx: 160, interiorLaneY: INTERIOR_LANE_Y },
-  { kind: "meeting", label: "MEETING ROOM", bounds: { x: 320, y: ROOM_TOP, w: 304, h: 256 }, doorCx: 472, interiorLaneY: INTERIOR_LANE_Y },
-  { kind: "snack", label: "SNACK BAR", bounds: { x: 640, y: ROOM_TOP, w: 256, h: 256 }, doorCx: 768, interiorLaneY: INTERIOR_LANE_Y },
-  { kind: "restroom", label: "RESTROOM", bounds: { x: 912, y: ROOM_TOP, w: 288, h: 256 }, doorCx: 1056, interiorLaneY: INTERIOR_LANE_Y },
+  { kind: "ceo", label: t("CEO OFFICE"), bounds: { x: 16, y: ROOM_TOP, w: 288, h: 256 }, doorCx: 160, interiorLaneY: INTERIOR_LANE_Y },
+  { kind: "meeting", label: t("MEETING ROOM"), bounds: { x: 320, y: ROOM_TOP, w: 304, h: 256 }, doorCx: 472, interiorLaneY: INTERIOR_LANE_Y },
+  { kind: "snack", label: t("SNACK BAR"), bounds: { x: 640, y: ROOM_TOP, w: 256, h: 256 }, doorCx: 768, interiorLaneY: INTERIOR_LANE_Y },
+  { kind: "restroom", label: t("RESTROOM"), bounds: { x: 912, y: ROOM_TOP, w: 288, h: 256 }, doorCx: 1056, interiorLaneY: INTERIOR_LANE_Y },
 ];
 
 const AMENITIES: AmenitySpot[] = [
diff --git a/src/renderer/src/pages/settings/AdvancedPanel.tsx b/src/renderer/src/pages/settings/AdvancedPanel.tsx
index 5122da34..a15a8c7c 100644
--- a/src/renderer/src/pages/settings/AdvancedPanel.tsx
+++ b/src/renderer/src/pages/settings/AdvancedPanel.tsx
@@ -9,6 +9,7 @@ import type {
 import type { SnapshotActions } from "../../app/useSnapshot";
 import { BillingPanel } from "./BillingPanel";
 import { ProviderRequestPanel } from "./ProviderRequestPanel";
+import { t } from "../../i18n/i18n";
 
 /** The low-frequency operator surfaces, one section each. */
 export function AdvancedPanel({
@@ -33,7 +34,7 @@ export function AdvancedPanel({
   const connected = providers.filter((provider) => provider.enabled);
   return (
     <div className="page">
-      <h1 className="page-h1">Advanced</h1>
+      <h1 className="page-h1">{t("Advanced")}</h1>
 
       {connected.length > 0 && (
         <div style={{ marginTop: 16 }}>
diff --git a/src/renderer/src/pages/settings/BillingPanel.tsx b/src/renderer/src/pages/settings/BillingPanel.tsx
index 50284b89..eb2aa713 100644
--- a/src/renderer/src/pages/settings/BillingPanel.tsx
+++ b/src/renderer/src/pages/settings/BillingPanel.tsx
@@ -1,6 +1,7 @@
 import { Avatar, Pill } from "../../shared/ui";
 import type { AgentRecord, HiringPolicyRecord, ProviderRecord, ProviderRequestRecord } from "../../../../shared/domain";
 import { money } from "../types";
+import { t } from "../../i18n/i18n";
 
 export function BillingPanel({
   agents,
@@ -23,39 +24,39 @@ export function BillingPanel({
 
   return (
     <div>
-      <div className="section-label" style={{ marginBottom: 10 }}>Billing</div>
+      <div className="section-label" style={{ marginBottom: 10 }}>{t("Billing")}</div>
 
       <div style={{ display: "grid", gridTemplateColumns: "repeat(4, minmax(0, 1fr))", gap: 12, marginBottom: 20 }}>
-        <StatTile label="Monthly allocation" value={money(totalBudget)} />
-        <StatTile label="Budget cap" value={totalCap > 0 ? money(totalCap) : "—"} />
-        <StatTile label="Requests (30d)" value={String(monthRequests.length)} />
-        <StatTile label="Failures (30d)" value={String(failedRequests.length)} tone={failedRequests.length > 0 ? "red" : undefined} />
+        <StatTile label={t("Monthly allocation")} value={money(totalBudget)} />
+        <StatTile label={t("Budget cap")} value={totalCap > 0 ? money(totalCap) : "—"} />
+        <StatTile label={t("Requests (30d)")} value={String(monthRequests.length)} />
+        <StatTile label={t("Failures (30d)")} value={String(failedRequests.length)} tone={failedRequests.length > 0 ? "red" : undefined} />
       </div>
 
       <div style={{ display: "grid", gridTemplateColumns: "1fr 1fr", gap: 12, marginBottom: 20 }}>
         <div className="card" style={{ padding: 14 }}>
-          <div className="card-label" style={{ marginBottom: 8 }}>Token usage (30d)</div>
+          <div className="card-label" style={{ marginBottom: 8 }}>{t("Token usage (30d)")}</div>
           <div style={{ display: "grid", gridTemplateColumns: "100px 1fr", gap: "6px 14px", fontSize: 12 }}>
-            <span style={{ color: "var(--text-3)" }}>Input chars</span><span className="num">{totalInputChars.toLocaleString()}</span>
-            <span style={{ color: "var(--text-3)" }}>Output chars</span><span className="num">{totalOutputChars.toLocaleString()}</span>
-            <span style={{ color: "var(--text-3)" }}>Total</span><span className="num">{(totalInputChars + totalOutputChars).toLocaleString()}</span>
+            <span style={{ color: "var(--text-3)" }}>{t("Input chars")}</span><span className="num">{totalInputChars.toLocaleString()}</span>
+            <span style={{ color: "var(--text-3)" }}>{t("Output chars")}</span><span className="num">{totalOutputChars.toLocaleString()}</span>
+            <span style={{ color: "var(--text-3)" }}>{t("Total")}</span><span className="num">{(totalInputChars + totalOutputChars).toLocaleString()}</span>
           </div>
         </div>
         <div className="card" style={{ padding: 14 }}>
-          <div className="card-label" style={{ marginBottom: 8 }}>Budget utilization</div>
+          <div className="card-label" style={{ marginBottom: 8 }}>{t("Budget utilization")}</div>
           <div style={{ height: 6, background: "var(--panel-3)", borderRadius: 3, overflow: "hidden", marginBottom: 8 }}>
             <div style={{ width: `${totalCap > 0 ? Math.min(100, Math.round((totalBudget / totalCap) * 100)) : 0}%`, height: "100%", background: "var(--accent)" }} />
           </div>
           <div style={{ fontSize: 12, color: "var(--text-3)" }}>
-            {totalCap > 0 ? `${Math.round((totalBudget / totalCap) * 100)}% of cap` : "No budget cap set"}
+            {totalCap > 0 ? t("{percent}% of cap", { percent: Math.round((totalBudget / totalCap) * 100) }) : t("No budget cap set")}
           </div>
         </div>
       </div>
 
-      <div className="section-label" style={{ marginBottom: 10 }}>Cost by agent</div>
+      <div className="section-label" style={{ marginBottom: 10 }}>{t("Cost by agent")}</div>
       <div className="card" style={{ padding: 0, overflow: "hidden", marginBottom: 20 }}>
         <div className="table-row head" style={{ gridTemplateColumns: "minmax(0, 2fr) minmax(0, 1fr) minmax(0, 1fr) minmax(0, 1fr) minmax(0, 1fr)" }}>
-          <div>Agent</div><div>Budget</div><div>Requests</div><div>Input</div><div>Output</div>
+          <div>{t("Agent")}</div><div>{t("Budget")}</div><div>{t("Requests")}</div><div>{t("Input")}</div><div>{t("Output")}</div>
         </div>
         {agentSpend.map((row, i) => (
           <div key={row.agent.id} className="table-row" style={{ gridTemplateColumns: "minmax(0, 2fr) minmax(0, 1fr) minmax(0, 1fr) minmax(0, 1fr) minmax(0, 1fr)", borderBottom: i === agentSpend.length - 1 ? "none" : "1px solid var(--border-soft)" }}>
@@ -71,10 +72,10 @@ export function BillingPanel({
         ))}
       </div>
 
-      <div className="section-label" style={{ marginBottom: 10 }}>Provider activity (30d)</div>
+      <div className="section-label" style={{ marginBottom: 10 }}>{t("Provider activity (30d)")}</div>
       <div className="card" style={{ padding: 0, overflow: "hidden" }}>
         <div className="table-row head" style={{ gridTemplateColumns: "minmax(0, 1.6fr) minmax(0, 1fr) minmax(0, 1fr) minmax(0, 1fr)" }}>
-          <div>Provider</div><div>Requests</div><div>Errors</div><div>Agents</div>
+          <div>{t("Provider")}</div><div>{t("Requests")}</div><div>{t("Errors")}</div><div>{t("Agents")}</div>
         </div>
         {providers.map((provider, index) => {
           const requests = monthRequests.filter((r) => r.providerId === provider.id);
diff --git a/src/renderer/src/pages/settings/ProviderConnectionDialog.tsx b/src/renderer/src/pages/settings/ProviderConnectionDialog.tsx
index c8effb22..27fa1769 100644
--- a/src/renderer/src/pages/settings/ProviderConnectionDialog.tsx
+++ b/src/renderer/src/pages/settings/ProviderConnectionDialog.tsx
@@ -2,6 +2,7 @@ import { useState } from "react";
 import type { ProviderCatalogEntry, ProviderRecord } from "../../../../shared/domain";
 import { ProviderOAuthConnect } from "../../shared/ProviderOAuthConnect";
 import { Field } from "../../shared/ui";
+import { t } from "../../i18n/i18n";
 
 interface CloudFields {
   baseUrl: string;
@@ -23,7 +24,7 @@ export function ProviderConnectFields({
     return (
       <>
         <p style={{ fontSize: 12, color: "var(--text-3)", lineHeight: 1.5, margin: 0 }}>{entry.credentialHelp}</p>
-        <Field label="API key"><input className="input" name="secret" type="password" required autoFocus /></Field>
+        <Field label={t("API key")}><input className="input" name="secret" type="password" required autoFocus /></Field>
         <ModelPicker entry={entry} provider={provider} />
       </>
     );
@@ -51,7 +52,7 @@ export function ProviderOAuthFields({
   return (
     <>
       <p style={{ fontSize: 12, color: "var(--text-3)", lineHeight: 1.5, margin: 0 }}>{entry.credentialHelp}</p>
-      <Field label="Default model">
+      <Field label={t("Default model")}>
         {entry.models.length ? (
           <select className="input" value={model} onChange={(event) => setModel(event.target.value)}>
             {entry.models.map((option) => (
@@ -78,7 +79,7 @@ function CompatFieldsForm({ entry, provider }: { entry: ProviderCatalogEntry; pr
   return (
     <>
       <p style={{ fontSize: 12, color: "var(--text-3)", lineHeight: 1.5, margin: 0 }}>{entry.credentialHelp}</p>
-      <Field label="Base URL">
+      <Field label={t("Base URL")}>
         <input
           className="input"
           name="cloudBaseUrl"
@@ -86,7 +87,7 @@ function CompatFieldsForm({ entry, provider }: { entry: ProviderCatalogEntry; pr
           onChange={(event) => setBaseUrl(event.target.value)}
         />
       </Field>
-      <Field label="API key"><input className="input" name="secret" type="password" required /></Field>
+      <Field label={t("API key")}><input className="input" name="secret" type="password" required /></Field>
       <ModelPicker entry={entry} provider={provider} />
     </>
   );
@@ -114,7 +115,7 @@ function ModelPicker({ entry, provider }: { entry: ProviderCatalogEntry; provide
   };
 
   return (
-    <Field label="Default model">
+    <Field label={t("Default model")}>
       {models.length ? (
         <select className="input" name="model" value={value} onChange={(event) => setValue(event.target.value)}>
           {models.map((model) => (
@@ -126,7 +127,7 @@ function ModelPicker({ entry, provider }: { entry: ProviderCatalogEntry; provide
       )}
       {connected && (
         <button type="button" className="button ghost" style={{ marginTop: 6 }} disabled={loading} onClick={refresh}>
-          {loading ? "Loading models..." : "Refresh models"}
+          {loading ? t("Loading models...") : t("Refresh models")}
         </button>
       )}
       {error && <div style={{ color: "var(--red)", fontSize: 12, marginTop: 4 }}>{error}</div>}
@@ -140,22 +141,22 @@ function CloudFieldsForm({ entry, provider }: { entry: ProviderCatalogEntry; pro
   return (
     <>
       <p style={{ fontSize: 12, color: "var(--text-3)", lineHeight: 1.5, margin: 0 }}>{entry.credentialHelp}</p>
-      <Field label="Base URL">
+      <Field label={t("Base URL")}>
         <input className="input" name="cloudBaseUrl" value={state.baseUrl} onChange={(event) => update({ baseUrl: event.target.value })} />
       </Field>
-      <Field label="Region">
+      <Field label={t("Region")}>
         <input className="input" name="cloudRegion" value={state.region} onChange={(event) => update({ region: event.target.value })} />
       </Field>
-      <Field label="Project / resource">
+      <Field label={t("Project / resource")}>
         <input className="input" name="cloudProject" value={state.projectId} onChange={(event) => update({ projectId: event.target.value })} />
       </Field>
-      <Field label="Deployment / model id">
+      <Field label={t("Deployment / model id")}>
         <input className="input" name="cloudDeployment" value={state.deployment} onChange={(event) => update({ deployment: event.target.value })} />
       </Field>
-      <Field label="Credential">
+      <Field label={t("Credential")}>
         <input className="input" name="secret" type="password" required autoFocus />
       </Field>
-      <Field label="Default model">
+      <Field label={t("Default model")}>
         <input className="input" name="model" defaultValue={provider.model ?? entry.defaultModel ?? ""} />
       </Field>
     </>
diff --git a/src/renderer/src/pages/settings/ProviderRequestPanel.tsx b/src/renderer/src/pages/settings/ProviderRequestPanel.tsx
index 368367f6..7476e13b 100644
--- a/src/renderer/src/pages/settings/ProviderRequestPanel.tsx
+++ b/src/renderer/src/pages/settings/ProviderRequestPanel.tsx
@@ -3,6 +3,7 @@ import type { ProviderCatalogEntry, ProviderRecord, ProviderRequestRecord, Works
 import { PROVIDER_DATA_POLICY, PROVIDER_EXECUTION_MODE, PROVIDER_REQUEST_STATE, type ProviderExecutionMode } from "../../../../shared/domain";
 import type { SnapshotActions } from "../../app/useSnapshot";
 import { Button, Field, Icon, Pill, Segmented } from "../../shared/ui";
+import { t } from "../../i18n/i18n";
 
 interface ProviderRequestPanelProps {
   orgId: string;
@@ -14,8 +15,8 @@ interface ProviderRequestPanelProps {
 }
 
 const MODE_OPTIONS: ReadonlyArray<{ id: ProviderExecutionMode; label: string }> = [
-  { id: PROVIDER_EXECUTION_MODE.FOREGROUND, label: "Foreground" },
-  { id: PROVIDER_EXECUTION_MODE.BACKGROUND, label: "Background" },
+  { id: PROVIDER_EXECUTION_MODE.FOREGROUND, label: t("Foreground") },
+  { id: PROVIDER_EXECUTION_MODE.BACKGROUND, label: t("Background") },
 ];
 
 const ACTIVE_REQUEST_STATES = new Set<string>([
@@ -64,13 +65,13 @@ export function ProviderRequestPanel({
 
   return (
     <>
-      <div className="section-label" style={{ marginBottom: 10 }}>Requests</div>
+      <div className="section-label" style={{ marginBottom: 10 }}>{t("Requests")}</div>
       <form className="card" style={{ marginBottom: 10 }} onSubmit={submit}>
         <div style={{ display: "grid", gridTemplateColumns: "minmax(150px, 1fr) minmax(150px, 1fr) minmax(200px, 1fr) auto", gap: 10, alignItems: "end" }}>
-          <Field label="Provider">
+          <Field label={t("Provider")}>
             <select
               className="input"
-              aria-label="Request provider"
+              aria-label={t("Request provider")}
               value={selectedProvider?.id ?? ""}
               onChange={(event) => setProviderId(event.target.value)}
             >
@@ -79,22 +80,22 @@ export function ProviderRequestPanel({
               ))}
             </select>
           </Field>
-          <Field label="Workspace">
+          <Field label={t("Workspace")}>
             <select
               className="input"
-              aria-label="Request workspace"
+              aria-label={t("Request workspace")}
               value={effectiveWorkspaceId}
               disabled={workspaces.length === 0}
               onChange={(event) => setWorkspaceId(event.target.value)}
             >
-              {workspaces.length === 0 && <option value="">Organization</option>}
+              {workspaces.length === 0 && <option value="">{t("Organization")}</option>}
               {workspaces.map((workspace) => (
                 <option key={workspace.id} value={workspace.id}>{workspace.name}</option>
               ))}
             </select>
           </Field>
           <div className="field">
-            <span>Mode</span>
+            <span>{t("Mode")}</span>
             <div style={{ alignSelf: "flex-start" }}>
               <Segmented
                 value={selectedMode}
@@ -106,21 +107,21 @@ export function ProviderRequestPanel({
           <Button type="submit" tone="primary">
             <span className="row" style={{ gap: 6 }}>
               <Icon name="send" size={16} />
-              Run
+              {t("Run")}
             </span>
           </Button>
         </div>
-        <Field label="Prompt">
-          <textarea className="input" aria-label="Request prompt" name="prompt" required rows={3} style={{ resize: "vertical" }} />
+        <Field label={t("Prompt")}>
+          <textarea className="input" aria-label={t("Request prompt")} name="prompt" required rows={3} style={{ resize: "vertical" }} />
         </Field>
-        <Field label="Instructions">
-          <input className="input" aria-label="Request instructions" name="instructions" />
+        <Field label={t("Instructions")}>
+          <input className="input" aria-label={t("Request instructions")} name="instructions" />
         </Field>
       </form>
       {recentRequests.length > 0 && (
         <div className="card" style={{ padding: 0, overflowX: "auto", marginBottom: 28 }}>
           <div className="table-row head" style={{ gridTemplateColumns: "minmax(120px, 1fr) minmax(120px, 1fr) 92px 100px minmax(120px, 1fr) 86px", minWidth: 760 }}>
-            <div>Provider</div><div>Workspace</div><div>Mode</div><div>State</div><div>Output</div><div>Action</div>
+            <div>{t("Provider")}</div><div>{t("Workspace")}</div><div>{t("Mode")}</div><div>{t("State")}</div><div>{t("Output")}</div><div>{t("Action")}</div>
           </div>
           {recentRequests.map((request, index) => (
             <ProviderRequestRow
@@ -171,14 +172,14 @@ function ProviderRequestRow({
         <div style={{ fontWeight: 540, overflow: "hidden", textOverflow: "ellipsis", whiteSpace: "nowrap" }}>{provider.label}</div>
         <div className="mono" style={{ fontSize: 12, color: "var(--text-3)" }}>{request.model}</div>
       </div>
-      <div className="mono" style={{ color: "var(--text-2)", overflow: "hidden", textOverflow: "ellipsis", whiteSpace: "nowrap" }}>{workspace?.name ?? "Organization"}</div>
+      <div className="mono" style={{ color: "var(--text-2)", overflow: "hidden", textOverflow: "ellipsis", whiteSpace: "nowrap" }}>{workspace?.name ?? t("Organization")}</div>
       <div className="mono" style={{ color: "var(--text-2)" }}>{request.executionMode}</div>
       <div><Pill tone={stateTone(request.state)}>{request.state}</Pill></div>
-      <div className="mono" style={{ color: "var(--text-2)" }}>{request.outputCharCount} chars</div>
+      <div className="mono" style={{ color: "var(--text-2)" }}>{t("{count} chars", { count: request.outputCharCount })}</div>
       <Button size="small" tone="ghost" onClick={cancel} disabled={!canCancel}>
         <span className="row" style={{ gap: 5 }}>
           <Icon name="x" size={12} />
-          Cancel
+          {t("Cancel")}
         </span>
       </Button>
     </div>
diff --git a/src/renderer/src/pages/settings/ProvidersPanel.tsx b/src/renderer/src/pages/settings/ProvidersPanel.tsx
index 8d3a6c0c..75d0a155 100644
--- a/src/renderer/src/pages/settings/ProvidersPanel.tsx
+++ b/src/renderer/src/pages/settings/ProvidersPanel.tsx
@@ -1,6 +1,7 @@
 import { useState, type FormEvent } from "react";
 import { Button, Pill } from "../../shared/ui";
 import { Dialog } from "../../shared/Dialog";
+import { t } from "../../i18n/i18n";
 import type {
   AgentRecord,
   ProviderCatalogEntry,
@@ -56,11 +57,11 @@ export function ProvidersPanel({ orgId, employeeId, providers, authProfiles, cat
 
   return (
     <div className="page">
-      <h1 className="page-h1">Providers</h1>
+      <h1 className="page-h1">{t("Providers")}</h1>
 
       {connected.length > 0 && (
         <>
-          <div className="section-label" style={{ margin: "16px 0 10px" }}>Connected</div>
+          <div className="section-label" style={{ margin: "16px 0 10px" }}>{t("Connected")}</div>
           <div style={{ display: "flex", flexDirection: "column", gap: 8, marginBottom: 28 }}>
             {connected.map((provider) => (
               <ProviderRow
@@ -85,7 +86,7 @@ export function ProvidersPanel({ orgId, employeeId, providers, authProfiles, cat
 
       {available.length > 0 && (
         <>
-          <div className="section-label" style={{ marginBottom: 10 }}>Available</div>
+          <div className="section-label" style={{ marginBottom: 10 }}>{t("Available")}</div>
           <div style={{ display: "grid", gridTemplateColumns: "repeat(2, minmax(0, 1fr))", gap: 10 }}>
             {available.map((provider) => (
               <ProviderCard key={provider.id} provider={provider} onConnect={() => setActive(provider)} />
@@ -95,9 +96,9 @@ export function ProvidersPanel({ orgId, employeeId, providers, authProfiles, cat
       )}
 
       <Dialog
-        title={active ? `Connect ${active.label}` : "Connect provider"}
+        title={active ? t("Connect {label}", { label: active.label }) : t("Connect provider")}
         open={Boolean(active)}
-        submitLabel="Save"
+        submitLabel={t("Save")}
         hideSubmit={activeIsOAuth}
         onClose={close}
         onSubmit={save}
@@ -133,13 +134,13 @@ function ProviderPolicyTable({
 }) {
   return (
     <>
-      <div className="section-label" style={{ marginBottom: 10 }}>Runtime policy</div>
+      <div className="section-label" style={{ marginBottom: 10 }}>{t("Runtime policy")}</div>
       <div className="card" style={{ padding: 0, overflowX: "auto", marginBottom: 28 }}>
         <div
           className="table-row head"
           style={{ gridTemplateColumns: POLICY_GRID, minWidth: 780 }}
         >
-          <div>Provider</div><div>Scope</div><div>Data policy</div><div>Background</div><div>Monthly limit</div><div>Usage</div>
+          <div>{t("Provider")}</div><div>{t("Scope")}</div><div>{t("Data policy")}</div><div>{t("Background")}</div><div>{t("Monthly limit")}</div><div>{t("Usage")}</div>
         </div>
         {providers.map((provider, index) => {
           const rateLimit = requireProviderRateLimit(provider, providerRateLimits);
@@ -207,35 +208,35 @@ function ProviderPolicyRow({
       </div>
       <select
         className="input"
-        aria-label={`${provider.label} workspace scope`}
+        aria-label={t("{label} workspace scope", { label: provider.label })}
         value={workspaceScope}
         onChange={(event) => setWorkspaceScope(event.target.value === "workspace" ? "workspace" : "organization")}
       >
-        <option value="organization">Organization</option>
-        <option value="workspace">Workspace</option>
+        <option value="organization">{t("Organization")}</option>
+        <option value="workspace">{t("Workspace")}</option>
       </select>
       <select
         className="input"
-        aria-label={`${provider.label} data policy`}
+        aria-label={t("{label} data policy", { label: provider.label })}
         value={dataPolicy}
         onChange={(event) => updateDataPolicy(event.target.value as ProviderRecord["dataPolicy"])}
       >
-        <option value={PROVIDER_DATA_POLICY.STANDARD}>Standard retention</option>
-        <option value={PROVIDER_DATA_POLICY.ZERO_DATA_RETENTION}>Zero data retention</option>
+        <option value={PROVIDER_DATA_POLICY.STANDARD}>{t("Standard retention")}</option>
+        <option value={PROVIDER_DATA_POLICY.ZERO_DATA_RETENTION}>{t("Zero data retention")}</option>
       </select>
       <label className="row" style={{ gap: 8, fontSize: 12, color: "var(--text-2)" }}>
         <input
-          aria-label={`${provider.label} background execution`}
+          aria-label={t("{label} background execution", { label: provider.label })}
           type="checkbox"
           checked={backgroundEnabled}
           disabled={dataPolicy === PROVIDER_DATA_POLICY.ZERO_DATA_RETENTION}
           onChange={(event) => setBackgroundEnabled(event.target.checked)}
         />
-        Allow
+        {t("Allow")}
       </label>
       <input
         className="input"
-        aria-label={`${provider.label} monthly request limit`}
+        aria-label={t("{label} monthly request limit", { label: provider.label })}
         type="number"
         min={1}
         value={monthlyRequestLimit}
@@ -243,8 +244,8 @@ function ProviderPolicyRow({
       />
       <div>
         <div className="num mono">{rateLimit.requestCount} / {rateLimit.monthlyRequestLimit}</div>
-        <button type="button" className="button small" aria-label={`Save ${provider.label} policy`} onClick={savePolicy}>
-          Save
+        <button type="button" className="button small" aria-label={t("Save {label} policy", { label: provider.label })} onClick={savePolicy}>
+          {t("Save")}
         </button>
       </div>
     </div>
@@ -289,21 +290,21 @@ function ProviderRow({
       </div>
       <ProviderHealth provider={provider} />
       <div className="num mono" style={{ fontSize: 13, minWidth: 72, textAlign: "right" }}>
-        {boundCount} {boundCount === 1 ? "agent" : "agents"}
+        {boundCount === 1 ? t("{count} agent", { count: boundCount }) : t("{count} agents", { count: boundCount })}
       </div>
       <span className="reveal row" style={{ gap: 6 }}>
-        <Button onClick={onCheck}>Check</Button>
-        <Button onClick={onManage}>Manage</Button>
-        <Button tone="ghost" onClick={onRevoke}>Revoke</Button>
+        <Button onClick={onCheck}>{t("Check")}</Button>
+        <Button onClick={onManage}>{t("Manage")}</Button>
+        <Button tone="ghost" onClick={onRevoke}>{t("Revoke")}</Button>
       </span>
     </div>
   );
 }
 
 function ProviderHealth({ provider }: { provider: ProviderRecord }) {
-  if (provider.healthState === "healthy") return <Pill tone="green">Healthy</Pill>;
-  if (provider.healthState === "failed") return <Pill tone="red">Failed</Pill>;
-  return <Pill>Unchecked</Pill>;
+  if (provider.healthState === "healthy") return <Pill tone="green">{t("Healthy")}</Pill>;
+  if (provider.healthState === "failed") return <Pill tone="red">{t("Failed")}</Pill>;
+  return <Pill>{t("Unchecked")}</Pill>;
 }
 
 function ProviderCard({ provider, onConnect }: { provider: ProviderRecord; onConnect: () => void }) {
@@ -328,16 +329,16 @@ function ProviderCard({ provider, onConnect }: { provider: ProviderRecord; onCon
         </div>
       </div>
       <Pill>{readableAuth(provider.authType)}</Pill>
-      <Button size="small" onClick={onConnect}>Connect</Button>
+      <Button size="small" onClick={onConnect}>{t("Connect")}</Button>
     </div>
   );
 }
 
 function readableAuth(authType: ProviderRecord["authType"]): string {
-  if (authType === "api_key") return "API key";
-  if (authType === "oauth_pkce") return "OAuth";
-  if (authType === "account_subscription") return "Account";
-  if (authType === "cloud") return "Cloud";
+  if (authType === "api_key") return t("API key");
+  if (authType === "oauth_pkce") return t("OAuth");
+  if (authType === "account_subscription") return t("Account");
+  if (authType === "cloud") return t("Cloud");
   return authType;
 }
 
diff --git a/src/renderer/src/pages/settings/SkillsPanel.tsx b/src/renderer/src/pages/settings/SkillsPanel.tsx
index a715ee3e..9f4996a7 100644
--- a/src/renderer/src/pages/settings/SkillsPanel.tsx
+++ b/src/renderer/src/pages/settings/SkillsPanel.tsx
@@ -1,6 +1,7 @@
 import { useEffect, useState, type FormEvent } from "react";
 import { Button, Field, Icon, Pill } from "../../shared/ui";
 import { Dialog } from "../../shared/Dialog";
+import { t } from "../../i18n/i18n";
 import type {
   AgentRecord,
   SkillBindingRecord,
@@ -46,9 +47,9 @@ export function SkillsPanel({ orgId, skills, revisions, bindings, tests, agents,
   return (
     <div className="page reveal-row">
       <div className="row" style={{ marginBottom: 24 }}>
-        <h1 className="page-h1" style={{ margin: 0 }}>Skills</h1>
+        <h1 className="page-h1" style={{ margin: 0 }}>{t("Skills")}</h1>
         <div className="reveal" style={{ marginLeft: "auto" }}>
-          <Button tone="primary" onClick={() => setImportOpen(true)}><Icon name="plus" size={16} /> Import</Button>
+          <Button tone="primary" onClick={() => setImportOpen(true)}><Icon name="plus" size={16} /> {t("Import")}</Button>
         </div>
       </div>
 
@@ -57,7 +58,7 @@ export function SkillsPanel({ orgId, skills, revisions, bindings, tests, agents,
           className="table-row head"
           style={{ gridTemplateColumns: "minmax(0, 1.4fr) 92px 132px minmax(0, 1.2fr) 132px" }}
         >
-          <div>Skill</div><div>Version</div><div>Tests</div><div>Held by</div><div>Actions</div>
+          <div>{t("Skill")}</div><div>{t("Version")}</div><div>{t("Tests")}</div><div>{t("Held by")}</div><div>{t("Actions")}</div>
         </div>
         {skills.map((skill, index) => {
           const last = index === skills.length - 1;
@@ -82,16 +83,16 @@ export function SkillsPanel({ orgId, skills, revisions, bindings, tests, agents,
                 ))}
               </div>
               <div className="row" style={{ minWidth: 0 }}>
-                <Button size="small" onClick={() => { if (latest && revisionTests.length > 0) runTests(latest.id); }} disabled={!latest || revisionTests.length === 0}>Run tests</Button>
+                <Button size="small" onClick={() => { if (latest && revisionTests.length > 0) runTests(latest.id); }} disabled={!latest || revisionTests.length === 0}>{t("Run tests")}</Button>
               </div>
             </div>
           );
         })}
       </div>
 
-      <Dialog title="Import skill" open={importOpen} submitLabel="Import" onClose={() => setImportOpen(false)} onSubmit={importSkill}>
-        <Field label="Directory path"><input className="input" name="directoryPath" required /></Field>
-        <Field label="Version (semver)"><input className="input" name="versionSemver" required defaultValue="1.0.0" /></Field>
+      <Dialog title={t("Import skill")} open={importOpen} submitLabel={t("Import")} onClose={() => setImportOpen(false)} onSubmit={importSkill}>
+        <Field label={t("Directory path")}><input className="input" name="directoryPath" required /></Field>
+        <Field label={t("Version (semver)")}><input className="input" name="versionSemver" required defaultValue="1.0.0" /></Field>
       </Dialog>
     </div>
   );
@@ -102,13 +103,13 @@ function agentName(agentId: string, agents: AgentRecord[]): string {
 }
 
 function testSummary(tests: SkillTestRecord[]): string {
-  if (tests.length === 0) return "No tests";
+  if (tests.length === 0) return t("No tests");
   const completed = tests.filter((test) => test.lastResult);
-  if (completed.length === 0) return "Never run";
+  if (completed.length === 0) return t("Never run");
   const passed = completed.filter((test) => testStatus(test) === "passed").length;
   const failed = completed.length - passed;
-  if (failed > 0) return `${failed} failed`;
-  return `${passed}/${tests.length} passed`;
+  if (failed > 0) return t("{n} failed", { n: failed });
+  return t("{passed}/{total} passed", { passed, total: tests.length });
 }
 
 function testStatus(test: SkillTestRecord): "passed" | "failed" {
diff --git a/src/renderer/src/pages/settings/WorkspacePanel.tsx b/src/renderer/src/pages/settings/WorkspacePanel.tsx
index 8e7577d9..b229c70c 100644
--- a/src/renderer/src/pages/settings/WorkspacePanel.tsx
+++ b/src/renderer/src/pages/settings/WorkspacePanel.tsx
@@ -9,6 +9,7 @@ import type {
 } from "../../../../shared/domain";
 import { Button, Field, Icon, Pill } from "../../shared/ui";
 import { Dialog } from "../../shared/Dialog";
+import { t } from "../../i18n/i18n";
 import type { SnapshotActions } from "../../app/useSnapshot";
 
 function text(form: FormData, key: string): string {
@@ -57,41 +58,41 @@ export function WorkspacePanel({
 
   return (
     <div className="page">
-      <h1 className="page-h1">General</h1>
+      <h1 className="page-h1">{t("General")}</h1>
 
       <div className="row" style={{ gap: 8, margin: "16px 0 24px" }}>
-        <Pill tone="violet" dot>{organization.executionMode === "ai_ceo" ? "AI CEO" : "AI Co-Founder"}</Pill>
-        {organization.autoApproveHires ? <Pill tone="green" dot>Auto-approve hires</Pill> : <Pill>Hires require approval</Pill>}
-        {organization.reviewDeliverables ? <Pill tone="amber" dot>Reviews deliverables</Pill> : <Pill>Ships without review</Pill>}
+        <Pill tone="violet" dot>{organization.executionMode === "ai_ceo" ? t("AI CEO") : t("AI Co-Founder")}</Pill>
+        {organization.autoApproveHires ? <Pill tone="green" dot>{t("Auto-approve hires")}</Pill> : <Pill>{t("Hires require approval")}</Pill>}
+        {organization.reviewDeliverables ? <Pill tone="amber" dot>{t("Reviews deliverables")}</Pill> : <Pill>{t("Ships without review")}</Pill>}
       </div>
 
       <div style={{ marginBottom: 28 }}>
-        <KeyValue label="Name" value={organization.name} />
-        <KeyValue label="Mission" value={organization.mission || "—"} />
-        <KeyValue label="Goal" value={organization.goal || "—"} />
-        <KeyValue label="Description" value={organization.description || "—"} />
+        <KeyValue label={t("Name")} value={organization.name} />
+        <KeyValue label={t("Mission")} value={organization.mission || "—"} />
+        <KeyValue label={t("Goal")} value={organization.goal || "—"} />
+        <KeyValue label={t("Description")} value={organization.description || "—"} />
       </div>
 
-      <div className="section-label" style={{ marginBottom: 8 }}>Appearance</div>
+      <div className="section-label" style={{ marginBottom: 8 }}>{t("Appearance")}</div>
       <div style={{ display: "grid", gridTemplateColumns: "repeat(2, minmax(0, 240px))", gap: 12, marginBottom: 28 }}>
-        <Field label="Theme">
+        <Field label={t("Theme")}>
           <select
             className="input"
-            aria-label="Theme"
+            aria-label={t("Theme")}
             value={uiPreferences.theme}
             onChange={(event) =>
               void actions.run(() => window.agentCompany.setUiPreferences({ theme: event.target.value as UiTheme }))
             }
           >
-            <option value="system">System</option>
-            <option value="light">Light</option>
-            <option value="dark">Dark</option>
+            <option value="system">{t("System")}</option>
+            <option value="light">{t("Light")}</option>
+            <option value="dark">{t("Dark")}</option>
           </select>
         </Field>
-        <Field label="Language">
+        <Field label={t("Language")}>
           <select
             className="input"
-            aria-label="Language"
+            aria-label={t("Language")}
             value={uiPreferences.language}
             onChange={(event) =>
               void actions.run(() => window.agentCompany.setUiPreferences({ language: event.target.value as UiLanguage }))
@@ -104,9 +105,9 @@ export function WorkspacePanel({
       </div>
 
       <div className="row reveal-row" style={{ marginBottom: 8 }}>
-        <div className="section-label">Workspaces</div>
+        <div className="section-label">{t("Workspaces")}</div>
         <span className="reveal" style={{ marginLeft: "auto" }}>
-          <Button tone="ghost" onClick={() => setCreateOpen(true)}><Icon name="plus" size={16} /> Add</Button>
+          <Button tone="ghost" onClick={() => setCreateOpen(true)}><Icon name="plus" size={16} /> {t("Add")}</Button>
         </span>
       </div>
       {workspaces.map((workspace) => (
@@ -116,27 +117,27 @@ export function WorkspacePanel({
             <div style={{ fontSize: 12, color: "var(--text-3)", overflow: "hidden", textOverflow: "ellipsis", whiteSpace: "nowrap" }}>{workspace.localPath}</div>
           </div>
           <div style={{ marginLeft: "auto" }}>
-            {workspace.isPrimary && <Pill tone="violet">Primary</Pill>}
+            {workspace.isPrimary && <Pill tone="violet">{t("Primary")}</Pill>}
           </div>
         </div>
       ))}
 
-      <Dialog title="Add workspace" open={createOpen} submitLabel="Create" onClose={() => setCreateOpen(false)} onSubmit={submit}>
-        <Field label="Name"><input className="input" name="name" required /></Field>
-        <Field label="Local path">
+      <Dialog title={t("Add workspace")} open={createOpen} submitLabel={t("Create")} onClose={() => setCreateOpen(false)} onSubmit={submit}>
+        <Field label={t("Name")}><input className="input" name="name" required /></Field>
+        <Field label={t("Local path")}>
           <div className="row" style={{ gap: 6 }}>
             <input className="input" name="localPath" required style={{ flex: 1 }} />
             <Button tone="ghost" onClick={() => {
               const form = document.querySelector<HTMLFormElement>("form:has([name='localPath'])");
               if (form) void chooseDirectory(form);
             }}>
-              <Icon name="folder" size={16} /> Browse
+              <Icon name="folder" size={16} /> {t("Browse")}
             </Button>
           </div>
         </Field>
-        <Field label="Project">
+        <Field label={t("Project")}>
           <select className="input" name="projectId" defaultValue="">
-            <option value="">None</option>
+            <option value="">{t("None")}</option>
             {projects.map((p) => <option key={p.id} value={p.id}>{p.name}</option>)}
           </select>
         </Field>
diff --git a/src/renderer/src/pages/social/SocialActivity.tsx b/src/renderer/src/pages/social/SocialActivity.tsx
index a665b723..e65961a1 100644
--- a/src/renderer/src/pages/social/SocialActivity.tsx
+++ b/src/renderer/src/pages/social/SocialActivity.tsx
@@ -7,6 +7,7 @@ import type {
   SocialAuditRecord,
 } from "../../../../shared/domain";
 import { formatRelative } from "../types";
+import { t } from "../../i18n/i18n";
 
 interface ActivityEntry {
   id: string;
@@ -37,7 +38,7 @@ export function SocialActivity({
     return account ? account.handle : "—";
   };
   const employeeName = (id: string | null): string => {
-    if (!id) return "System";
+    if (!id) return t("System");
     return employees.find((item) => item.id === id)?.displayName ?? id;
   };
 
@@ -68,7 +69,7 @@ export function SocialActivity({
 
   return (
     <div style={{ marginTop: 28 }}>
-      <div className="section-label" style={{ marginBottom: 10 }}>Access &amp; activity</div>
+      <div className="section-label" style={{ marginBottom: 10 }}>{t("Access & activity")}</div>
       {grants.length > 0 && (
         <div className="card" style={{ padding: 0, overflow: "hidden", marginBottom: 12 }}>
           {grants.map((grant, index) => (
@@ -99,7 +100,7 @@ export function SocialActivity({
               <span style={{ fontSize: 12, color: "var(--text-3)" }}>{accountHandle(entry.accountId)}</span>
               <Pill tone={policyTone(entry.policyDecision)}>{humanize(entry.policyDecision)}</Pill>
               <span style={{ marginLeft: "auto", fontSize: 12, color: "var(--text-3)" }}>
-                {entry.actorType === "agent" ? "agent" : employeeName(entry.actorId)} · {formatRelative(entry.createdAt)}
+                {entry.actorType === "agent" ? t("agent") : employeeName(entry.actorId)} · {formatRelative(entry.createdAt)}
               </span>
             </div>
           ))}
@@ -129,10 +130,10 @@ function scopeSummary(scopeJson: string): string {
       const actions = (parsed as { actions: unknown[] }).actions.filter((item): item is string => typeof item === "string");
       const ceiling = (parsed as { riskCeiling?: unknown }).riskCeiling;
       const risk = typeof ceiling === "string" ? ` · ≤${ceiling}` : "";
-      return `${actions.length} action${actions.length === 1 ? "" : "s"}${risk}`;
+      return `${actions.length === 1 ? t("{count} action", { count: actions.length }) : t("{count} actions", { count: actions.length })}${risk}`;
     }
   } catch {
-    return "scoped";
+    return t("scoped");
   }
-  return "scoped";
+  return t("scoped");
 }
diff --git a/src/renderer/src/pages/social/SocialCalendar.tsx b/src/renderer/src/pages/social/SocialCalendar.tsx
index 4fa65e24..de9e3567 100644
--- a/src/renderer/src/pages/social/SocialCalendar.tsx
+++ b/src/renderer/src/pages/social/SocialCalendar.tsx
@@ -2,6 +2,7 @@ import { useMemo, useState } from "react";
 import { IconButton } from "../../shared/ui";
 import type { ScheduledPostRecord, SocialAccountRecord, SocialPlatform } from "../../../../shared/domain";
 import { PLATFORM_COLOR_TOKENS } from "./platform-tokens";
+import { t } from "../../i18n/i18n";
 
 interface MonthAnchor {
   year: number;
@@ -31,8 +32,8 @@ export function SocialCalendar({
       <div className="row" style={{ marginBottom: 14 }}>
         <div className="card-label">{monthLabel}</div>
         <div style={{ marginLeft: "auto", display: "flex", gap: 2 }}>
-          <IconButton icon="chevronLeft" label="Previous month" onClick={() => setMonth(stepMonth({ year, month }, -1))} />
-          <IconButton icon="chevron" label="Next month" onClick={() => setMonth(stepMonth({ year, month }, 1))} />
+          <IconButton icon="chevronLeft" label={t("Previous month")} onClick={() => setMonth(stepMonth({ year, month }, -1))} />
+          <IconButton icon="chevron" label={t("Next month")} onClick={() => setMonth(stepMonth({ year, month }, 1))} />
         </div>
       </div>
       <div style={{ display: "grid", gridTemplateColumns: "repeat(7, 1fr)", gap: 4, marginBottom: 6 }}>
diff --git a/src/renderer/src/pages/team/HiringPipeline.tsx b/src/renderer/src/pages/team/HiringPipeline.tsx
index 115f6e4a..3bd2ad70 100644
--- a/src/renderer/src/pages/team/HiringPipeline.tsx
+++ b/src/renderer/src/pages/team/HiringPipeline.tsx
@@ -1,6 +1,7 @@
 import { Avatar } from "../../shared/ui";
 import type { AgentRecord, ApprovalRecord } from "../../../../shared/domain";
 import { formatRelative } from "../types";
+import { t } from "../../i18n/i18n";
 
 interface PipelineStage {
   id: string;
@@ -9,10 +10,10 @@ interface PipelineStage {
 }
 
 const STAGES: PipelineStage[] = [
-  { id: "pending_approval", label: "Pending approval", color: "var(--amber)" },
-  { id: "approved", label: "Approved", color: "var(--green)" },
-  { id: "active", label: "Active", color: "var(--accent)" },
-  { id: "rejected", label: "Rejected", color: "var(--red)" },
+  { id: "pending_approval", label: t("Pending approval"), color: "var(--amber)" },
+  { id: "approved", label: t("Approved"), color: "var(--green)" },
+  { id: "active", label: t("Active"), color: "var(--accent)" },
+  { id: "rejected", label: t("Rejected"), color: "var(--red)" },
 ];
 
 interface PipelineEntry {
@@ -37,7 +38,7 @@ export function HiringPipeline({ agents, approvals }: { agents: AgentRecord[]; a
 
   return (
     <section style={{ marginBottom: 24 }}>
-      <div className="section-label" style={{ marginBottom: 12 }}>Hiring pipeline</div>
+      <div className="section-label" style={{ marginBottom: 12 }}>{t("Hiring pipeline")}</div>
       <div style={{ display: "grid", gridTemplateColumns: "repeat(4, minmax(0, 1fr))", gap: 12 }}>
         {STAGES.map((stage) => {
           const stageEntries = entries.filter((e) => e.stage === stage.id);
diff --git a/src/renderer/src/pages/team/OrgChartTree.tsx b/src/renderer/src/pages/team/OrgChartTree.tsx
index 1fc81968..ca561ca8 100644
--- a/src/renderer/src/pages/team/OrgChartTree.tsx
+++ b/src/renderer/src/pages/team/OrgChartTree.tsx
@@ -1,6 +1,7 @@
 import { useCallback, useEffect, useMemo, useRef, useState } from "react";
 import { Avatar } from "../../shared/ui";
 import type { AgentRecord, EmployeeRecord } from "../../../../shared/domain";
+import { t } from "../../i18n/i18n";
 
 const NODE_W = 208;
 const NODE_H = 64;
@@ -104,9 +105,9 @@ export function OrgChartTree({
   return (
     <div className="org-chart">
       <div className="org-zoom">
-        <button type="button" className="org-zoom-btn" aria-label="Zoom out" disabled={scale <= ZOOM_MIN} onClick={() => zoomTo(scale - ZOOM_STEP)}>−</button>
-        <button type="button" className="org-zoom-label" aria-label="Reset zoom" onClick={() => zoomTo(1)}>{Math.round(scale * 100)}%</button>
-        <button type="button" className="org-zoom-btn" aria-label="Zoom in" disabled={scale >= ZOOM_MAX} onClick={() => zoomTo(scale + ZOOM_STEP)}>+</button>
+        <button type="button" className="org-zoom-btn" aria-label={t("Zoom out")} disabled={scale <= ZOOM_MIN} onClick={() => zoomTo(scale - ZOOM_STEP)}>−</button>
+        <button type="button" className="org-zoom-label" aria-label={t("Reset zoom")} onClick={() => zoomTo(1)}>{Math.round(scale * 100)}%</button>
+        <button type="button" className="org-zoom-btn" aria-label={t("Zoom in")} disabled={scale >= ZOOM_MAX} onClick={() => zoomTo(scale + ZOOM_STEP)}>+</button>
       </div>
       <div className="org-scroll" ref={scrollRef}>
         <div className="org-sizer" style={{ width: width * scale, height: height * scale }}>
@@ -171,7 +172,7 @@ function buildLayout(
     ? { id: boardChair.id, name: boardChair.displayName, role: boardChair.role, human: true, agentId: null, children: roots, x: 0, y: 0, width: 0 }
     : roots.length === 1
       ? roots[0]
-      : { id: "__org__", name: "Organization", role: "Reporting lines", human: false, agentId: null, children: roots, x: 0, y: 0, width: 0 };
+      : { id: "__org__", name: t("Organization"), role: t("Reporting lines"), human: false, agentId: null, children: roots, x: 0, y: 0, width: 0 };
 
   measure(root);
   let maxDepth = 0;
diff --git a/src/renderer/src/pages/types.ts b/src/renderer/src/pages/types.ts
index 5525b995..cc1dcbb1 100644
--- a/src/renderer/src/pages/types.ts
+++ b/src/renderer/src/pages/types.ts
@@ -5,6 +5,7 @@ import type {
 } from "../../../shared/domain";
 import type { SnapshotActions } from "../app/useSnapshot";
 import type { RouteId } from "../shared/Shell";
+import { t } from "../i18n/i18n";
 
 export interface PageProps {
   snapshot: AppSnapshot;
@@ -68,13 +69,13 @@ export function formatRelative(iso: string, reference: Date = new Date()): strin
   if (Number.isNaN(target)) return "—";
   const diff = reference.getTime() - target;
   const minutes = Math.round(diff / 60_000);
-  if (minutes < 1) return "just now";
-  if (minutes < 60) return `${minutes}m ago`;
+  if (minutes < 1) return t("just now");
+  if (minutes < 60) return t("{n}m ago", { n: minutes });
   const hours = Math.round(minutes / 60);
-  if (hours < 24) return `${hours}h ago`;
+  if (hours < 24) return t("{n}h ago", { n: hours });
   const days = Math.round(hours / 24);
-  if (days < 7) return `${days}d ago`;
+  if (days < 7) return t("{n}d ago", { n: days });
   const weeks = Math.round(days / 7);
-  if (weeks < 5) return `${weeks}w ago`;
+  if (weeks < 5) return t("{n}w ago", { n: weeks });
   return new Date(iso).toLocaleDateString();
 }
diff --git a/src/renderer/src/pages/work/GoalDialog.tsx b/src/renderer/src/pages/work/GoalDialog.tsx
index 70278af8..45945fdf 100644
--- a/src/renderer/src/pages/work/GoalDialog.tsx
+++ b/src/renderer/src/pages/work/GoalDialog.tsx
@@ -3,6 +3,7 @@ import { Field } from "../../shared/ui";
 import { Dialog } from "../../shared/Dialog";
 import type { AgentRecord } from "../../../../shared/domain";
 import type { SnapshotActions } from "../../app/useSnapshot";
+import { t } from "../../i18n/i18n";
 
 function text(form: FormData, key: string): string {
   return String(form.get(key) ?? "").trim();
@@ -37,12 +38,12 @@ export function GoalDialog({
   };
 
   return (
-    <Dialog title="New goal" open={open} submitLabel="Create" onClose={onClose} onSubmit={submit}>
-      <Field label="Title"><input className="input" name="title" required /></Field>
-      <Field label="Description"><textarea className="input" name="description" required /></Field>
-      <Field label="Owner agent">
+    <Dialog title={t("New goal")} open={open} submitLabel={t("Create")} onClose={onClose} onSubmit={submit}>
+      <Field label={t("Title")}><input className="input" name="title" required /></Field>
+      <Field label={t("Description")}><textarea className="input" name="description" required /></Field>
+      <Field label={t("Owner agent")}>
         <select className="input" name="ownerAgentId" defaultValue="">
-          <option value="">Unassigned</option>
+          <option value="">{t("Unassigned")}</option>
           {agents.filter((agent) => agent.lifecycle === "active").map((agent) => (
             <option key={agent.id} value={agent.id}>{agent.name} · {agent.role}</option>
           ))}
diff --git a/src/renderer/src/pages/work/ListView.tsx b/src/renderer/src/pages/work/ListView.tsx
index ffb1e4d0..ebeebbaa 100644
--- a/src/renderer/src/pages/work/ListView.tsx
+++ b/src/renderer/src/pages/work/ListView.tsx
@@ -1,6 +1,7 @@
 import { Avatar, IconButton, Pill } from "../../shared/ui";
 import type { AgentRecord, ProjectRecord, ProviderRecord, TaskRecord } from "../../../../shared/domain";
 import { canRun, prettyStatus, providerFor } from "./task-helpers";
+import { t } from "../../i18n/i18n";
 
 const GRID = "minmax(0, 3fr) 110px 96px minmax(0, 1.2fr) 88px";
 
@@ -22,7 +23,7 @@ export function ListView({
   return (
     <div className="card" style={{ padding: 0, overflow: "hidden" }}>
       <div className="table-row head" style={{ gridTemplateColumns: GRID }}>
-        <div>Title</div><div>Status</div><div>Priority</div><div>Assignee</div><div />
+        <div>{t("Title")}</div><div>{t("Status")}</div><div>{t("Priority")}</div><div>{t("Assignee")}</div><div />
       </div>
       {tasks.map((task, index) => {
         const assignee = agents.find((agent) => agent.id === task.assigneeAgentId) ?? null;
@@ -47,7 +48,7 @@ export function ListView({
               {project && <span style={{ flexShrink: 0 }}><Pill>{truncate(project.name, 24)}</Pill></span>}
             </div>
             <div><Pill>{prettyStatus(task.status)}</Pill></div>
-            <div><Pill tone={task.priority === "high" ? "amber" : undefined}>{task.priority}</Pill></div>
+            <div><Pill tone={task.priority === "high" ? "amber" : undefined}>{task.priority === "high" ? t("high") : task.priority === "low" ? t("low") : t("normal")}</Pill></div>
             <div style={{ minWidth: 0 }}>
               {assignee ? (
                 <div className="row" style={{ gap: 8, minWidth: 0 }}>
@@ -61,8 +62,8 @@ export function ListView({
               )}
             </div>
             <div style={{ display: "flex", justifyContent: "flex-end", gap: 4 }} onClick={(event) => event.stopPropagation()}>
-              {assignee && <IconButton icon="send" label={`Run ${task.title}`} onClick={() => onRun(task)} disabled={!canRun(provider)} />}
-              <IconButton icon="more" label={`Open ${task.title}`} onClick={() => onOpen(task)} />
+              {assignee && <IconButton icon="send" label={t("Run {title}", { title: task.title })} onClick={() => onRun(task)} disabled={!canRun(provider)} />}
+              <IconButton icon="more" label={t("Open {title}", { title: task.title })} onClick={() => onOpen(task)} />
             </div>
           </div>
         );
diff --git a/src/renderer/src/pages/work/ProjectDialog.tsx b/src/renderer/src/pages/work/ProjectDialog.tsx
index 798f7184..397944e8 100644
--- a/src/renderer/src/pages/work/ProjectDialog.tsx
+++ b/src/renderer/src/pages/work/ProjectDialog.tsx
@@ -3,6 +3,7 @@ import { Field } from "../../shared/ui";
 import { Dialog } from "../../shared/Dialog";
 import type { AgentRecord, GoalRecord } from "../../../../shared/domain";
 import type { SnapshotActions } from "../../app/useSnapshot";
+import { t } from "../../i18n/i18n";
 
 function text(form: FormData, key: string): string {
   return String(form.get(key) ?? "").trim();
@@ -40,18 +41,18 @@ export function ProjectDialog({
   };
 
   return (
-    <Dialog title="New project" open={open} submitLabel="Create" onClose={onClose} onSubmit={submit}>
-      <Field label="Name"><input className="input" name="name" required /></Field>
-      <Field label="Description"><textarea className="input" name="description" required /></Field>
-      <Field label="Goal">
+    <Dialog title={t("New project")} open={open} submitLabel={t("Create")} onClose={onClose} onSubmit={submit}>
+      <Field label={t("Name")}><input className="input" name="name" required /></Field>
+      <Field label={t("Description")}><textarea className="input" name="description" required /></Field>
+      <Field label={t("Goal")}>
         <select className="input" name="goalId" defaultValue="">
-          <option value="">None</option>
+          <option value="">{t("None")}</option>
           {goals.map((goal) => <option key={goal.id} value={goal.id}>{goal.title}</option>)}
         </select>
       </Field>
-      <Field label="Lead agent">
+      <Field label={t("Lead agent")}>
         <select className="input" name="leadAgentId" defaultValue="">
-          <option value="">Unassigned</option>
+          <option value="">{t("Unassigned")}</option>
           {agents.map((agent) => <option key={agent.id} value={agent.id}>{agent.name} · {agent.role}</option>)}
         </select>
       </Field>
diff --git a/src/renderer/src/pages/work/ProjectOverview.tsx b/src/renderer/src/pages/work/ProjectOverview.tsx
index 485f2106..988b3eab 100644
--- a/src/renderer/src/pages/work/ProjectOverview.tsx
+++ b/src/renderer/src/pages/work/ProjectOverview.tsx
@@ -1,5 +1,6 @@
 import { Avatar, Pill } from "../../shared/ui";
 import { TASK_STATUS, type AgentRecord, type ChatSpaceRecord, type ProjectRecord, type TaskRecord, type WorkspaceRecord } from "../../../../shared/domain";
+import { t } from "../../i18n/i18n";
 
 export function ProjectOverview({
   projects,
@@ -17,7 +18,7 @@ export function ProjectOverview({
   if (projects.length === 0) return null;
   return (
     <section style={{ marginBottom: 18 }}>
-      <div className="section-label" style={{ marginBottom: 10 }}>Projects</div>
+      <div className="section-label" style={{ marginBottom: 10 }}>{t("Projects")}</div>
       <div style={{ display: "grid", gridTemplateColumns: "repeat(auto-fit, minmax(260px, 1fr))", gap: 10 }}>
         {projects.map((project) => (
           <ProjectCard
@@ -55,7 +56,7 @@ function ProjectCard({
           <div style={{ fontWeight: 560, overflow: "hidden", textOverflow: "ellipsis", whiteSpace: "nowrap" }}>{project.name}</div>
           <div className="row" style={{ marginTop: 8, gap: 6, flexWrap: "wrap" }}>
             <Pill>{project.status.replace(/_/g, " ")}</Pill>
-            <Pill>{done} / {tasks.length} tasks</Pill>
+            <Pill>{t("{done} / {total} tasks", { done, total: tasks.length })}</Pill>
             {workspace && <Pill>{workspace.name}</Pill>}
             {room && <Pill>#{room.name}</Pill>}
           </div>
diff --git a/src/renderer/src/pages/work/TaskDetailDialog.tsx b/src/renderer/src/pages/work/TaskDetailDialog.tsx
index a8bf938e..c3f9cfe9 100644
--- a/src/renderer/src/pages/work/TaskDetailDialog.tsx
+++ b/src/renderer/src/pages/work/TaskDetailDialog.tsx
@@ -15,12 +15,13 @@ import { TASK_STATUS } from "../../../../shared/domain";
 import { auditEventLabel, formatRelative } from "../types";
 import { canRun, nextStatus, prettyRunState, prettyStatus, providerFor, runsForTask, runTone } from "./task-helpers";
 import type { SnapshotActions } from "../../app/useSnapshot";
+import { t } from "../../i18n/i18n";
 
 type Tab = "overview" | "subtasks" | "activity";
 const TABS: Array<{ id: Tab; label: string }> = [
-  { id: "overview", label: "Overview" },
-  { id: "subtasks", label: "Subtasks" },
-  { id: "activity", label: "Activity" },
+  { id: "overview", label: t("Overview") },
+  { id: "subtasks", label: t("Subtasks") },
+  { id: "activity", label: t("Activity") },
 ];
 
 export function TaskDetailDialog({
@@ -98,14 +99,14 @@ export function TaskDetailDialog({
         <div className="row" style={{ alignItems: "flex-start", gap: 10, marginBottom: 8 }}>
           {task.priority === "high" && <span style={{ width: 3, height: 18, background: "var(--red)", borderRadius: 2, marginTop: 2, flexShrink: 0 }} />}
           <h2 className="modal-title" style={{ margin: 0, flex: 1 }}>{task.title}</h2>
-          <IconButton icon="edit" label="Edit" onClick={() => setEditing(true)} />
-          <IconButton icon="x" label="Close" onClick={onClose} />
+          <IconButton icon="edit" label={t("Edit")} onClick={() => setEditing(true)} />
+          <IconButton icon="x" label={t("Close")} onClick={onClose} />
         </div>
         <div className="row" style={{ flexWrap: "wrap", gap: 6, marginBottom: 12 }}>
           <Pill>{prettyStatus(task.status)}</Pill>
-          <Pill tone={task.priority === "high" ? "amber" : undefined}>{task.priority}</Pill>
-          {task.risk === "high" && <Pill tone="red">high risk</Pill>}
-          {task.requiresFilesystem && <Pill>workspace</Pill>}
+          <Pill tone={task.priority === "high" ? "amber" : undefined}>{task.priority === "high" ? t("high") : task.priority === "low" ? t("low") : t("normal")}</Pill>
+          {task.risk === "high" && <Pill tone="red">{t("high risk")}</Pill>}
+          {task.requiresFilesystem && <Pill>{t("workspace")}</Pill>}
         </div>
 
         <div style={{ marginBottom: 12 }}><Segmented value={tab} onChange={setTab} options={TABS} /></div>
@@ -121,8 +122,8 @@ export function TaskDetailDialog({
         )}
 
         <div className="modal-actions">
-          <Button tone="ghost" onClick={deleteTask}><Icon name="x" size={16} /> Delete</Button>
-          {assignee && <Button onClick={() => onRun(task)} disabled={!canRun(provider)}><Icon name="send" size={16} /> Run</Button>}
+          <Button tone="ghost" onClick={deleteTask}><Icon name="x" size={16} /> {t("Delete")}</Button>
+          {assignee && <Button onClick={() => onRun(task)} disabled={!canRun(provider)}><Icon name="send" size={16} /> {t("Run")}</Button>}
           {advanceTo && <Button tone="primary" onClick={() => onAdvance(task)}><Icon name="check" size={16} /> {prettyStatus(advanceTo)}</Button>}
         </div>
 
@@ -143,17 +144,17 @@ function OverviewTab({ task, assignee, project, goal, workspace, provider, runs
         <p style={{ margin: "0 0 14px", color: "var(--text-2)", fontSize: 14, lineHeight: 1.55, whiteSpace: "pre-wrap" }}>{task.description}</p>
       )}
       <div style={{ display: "grid", gridTemplateColumns: "100px 1fr", gap: "8px 14px", fontSize: 12 }}>
-        <MetaLabel>Assignee</MetaLabel>
+        <MetaLabel>{t("Assignee")}</MetaLabel>
         <div className="row" style={{ gap: 8 }}>
-          {assignee ? (<><Avatar name={assignee.name} size="sm" bot /><span>{assignee.name}</span>{provider && <span style={{ color: "var(--text-3)" }}>({provider.label})</span>}</>) : <span style={{ color: "var(--text-4)" }}>Unassigned</span>}
+          {assignee ? (<><Avatar name={assignee.name} size="sm" bot /><span>{assignee.name}</span>{provider && <span style={{ color: "var(--text-3)" }}>({provider.label})</span>}</>) : <span style={{ color: "var(--text-4)" }}>{t("Unassigned")}</span>}
         </div>
-        {project && (<><MetaLabel>Project</MetaLabel><div>{project.name}</div></>)}
-        {goal && (<><MetaLabel>Goal</MetaLabel><div>{goal.title}</div></>)}
-        {workspace && (<><MetaLabel>Workspace</MetaLabel><div>{workspace.name}</div></>)}
+        {project && (<><MetaLabel>{t("Project")}</MetaLabel><div>{project.name}</div></>)}
+        {goal && (<><MetaLabel>{t("Goal")}</MetaLabel><div>{goal.title}</div></>)}
+        {workspace && (<><MetaLabel>{t("Workspace")}</MetaLabel><div>{workspace.name}</div></>)}
       </div>
       {runs.length > 0 && (
         <div style={{ marginTop: 16 }}>
-          <div className="section-label">Runs</div>
+          <div className="section-label">{t("Runs")}</div>
           <div style={{ display: "flex", flexDirection: "column", gap: 6 }}>
             {runs.map((run) => (
               <div key={run.id} style={{ display: "flex", flexDirection: "column", gap: 2 }}>
@@ -177,7 +178,7 @@ function OverviewTab({ task, assignee, project, goal, workspace, provider, runs
 function SubtasksTab({ subtasks, agents }: { subtasks: TaskRecord[]; agents: AgentRecord[] }) {
   return (
     <div style={{ minHeight: 60 }}>
-      {subtasks.length === 0 && <div style={{ fontSize: 14, color: "var(--text-3)" }}>No subtasks</div>}
+      {subtasks.length === 0 && <div style={{ fontSize: 14, color: "var(--text-3)" }}>{t("No subtasks")}</div>}
       {subtasks.map((st) => {
         const owner = agents.find((a) => a.id === st.assigneeAgentId);
         return (
@@ -198,7 +199,7 @@ function ActivityTab({ audit, approvals }: { audit: AuditEventRecord[]; approval
     <div style={{ minHeight: 60 }}>
       {approvals.length > 0 && (
         <div style={{ marginBottom: 12 }}>
-          <div className="section-label">Approvals</div>
+          <div className="section-label">{t("Approvals")}</div>
           {approvals.map((a) => (
             <div key={a.id} className="row" style={{ gap: 8, padding: "6px 0" }}>
               <Pill tone={a.state === "approved" ? "green" : a.state === "pending" ? "amber" : "red"}>{a.state}</Pill>
@@ -208,8 +209,8 @@ function ActivityTab({ audit, approvals }: { audit: AuditEventRecord[]; approval
           ))}
         </div>
       )}
-      <div className="section-label">Events</div>
-      {audit.length === 0 && <div style={{ fontSize: 14, color: "var(--text-3)" }}>No events</div>}
+      <div className="section-label">{t("Events")}</div>
+      {audit.length === 0 && <div style={{ fontSize: 14, color: "var(--text-3)" }}>{t("No events")}</div>}
       {audit.map((e) => (
         <div key={e.id} className="row" style={{ gap: 8, padding: "5px 0" }}>
           <span className="mono" style={{ fontSize: 12, color: "var(--text-3)", flexShrink: 0 }}>{formatRelative(e.createdAt)}</span>
@@ -228,36 +229,36 @@ function EditOverlay({ task, agents, allTasks, onSubmit, onCancel }: {
   return (
     <div style={{ position: "absolute", inset: 0, background: "var(--bg)", borderRadius: 14, padding: 24, overflow: "auto", zIndex: 2 }}>
       <form onSubmit={onSubmit}>
-        <h3 style={{ margin: "0 0 14px", fontSize: 15, fontWeight: 600 }}>Edit task</h3>
-        <Field label="Title"><input className="input" name="title" defaultValue={task.title} required /></Field>
-        <Field label="Description"><textarea className="input" name="description" rows={4} defaultValue={task.description} /></Field>
-        <Field label="Assignee">
+        <h3 style={{ margin: "0 0 14px", fontSize: 15, fontWeight: 600 }}>{t("Edit task")}</h3>
+        <Field label={t("Title")}><input className="input" name="title" defaultValue={task.title} required /></Field>
+        <Field label={t("Description")}><textarea className="input" name="description" rows={4} defaultValue={task.description} /></Field>
+        <Field label={t("Assignee")}>
           <select className="input" name="assigneeAgentId" defaultValue={task.assigneeAgentId ?? ""}>
-            <option value="">Unassigned</option>
+            <option value="">{t("Unassigned")}</option>
             {agents.map((a) => <option key={a.id} value={a.id}>{a.name}</option>)}
           </select>
         </Field>
         <div style={{ display: "grid", gridTemplateColumns: "1fr 1fr", gap: 10 }}>
-          <Field label="Risk">
+          <Field label={t("Risk")}>
             <select className="input" name="risk" defaultValue={task.risk}>
-              <option value="low">Low</option><option value="medium">Medium</option><option value="high">High</option>
+              <option value="low">{t("Low")}</option><option value="medium">{t("Medium")}</option><option value="high">{t("High")}</option>
             </select>
           </Field>
-          <Field label="Priority">
+          <Field label={t("Priority")}>
             <select className="input" name="priority" defaultValue={task.priority}>
-              <option value="low">Low</option><option value="normal">Normal</option><option value="high">High</option>
+              <option value="low">{t("Low")}</option><option value="normal">{t("Normal")}</option><option value="high">{t("High")}</option>
             </select>
           </Field>
         </div>
-        <Field label="Parent task">
+        <Field label={t("Parent task")}>
           <select className="input" name="parentTaskId" defaultValue={task.parentTaskId ?? ""}>
-            <option value="">None</option>
+            <option value="">{t("None")}</option>
             {otherTasks.map((t) => <option key={t.id} value={t.id}>{t.title}</option>)}
           </select>
         </Field>
         <div className="modal-actions">
-          <Button onClick={onCancel}>Cancel</Button>
-          <Button tone="primary" type="submit">Save</Button>
+          <Button onClick={onCancel}>{t("Cancel")}</Button>
+          <Button tone="primary" type="submit">{t("Save")}</Button>
         </div>
       </form>
     </div>
diff --git a/src/renderer/src/pages/work/TimelineView.tsx b/src/renderer/src/pages/work/TimelineView.tsx
index 6a2a0c46..8795819c 100644
--- a/src/renderer/src/pages/work/TimelineView.tsx
+++ b/src/renderer/src/pages/work/TimelineView.tsx
@@ -1,10 +1,11 @@
 import { TASK_STATUS, type GoalRecord, type ProjectRecord, type TaskRecord, type TaskStatus } from "../../../../shared/domain";
+import { t } from "../../i18n/i18n";
 
 const SEGMENTS: ReadonlyArray<{ id: TaskStatus; label: string; tone: string }> = [
-  { id: TASK_STATUS.DONE, label: "Done", tone: "var(--green)" },
-  { id: TASK_STATUS.REVIEW, label: "In review", tone: "var(--amber)" },
-  { id: TASK_STATUS.IN_PROGRESS, label: "In progress", tone: "var(--accent)" },
-  { id: TASK_STATUS.BACKLOG, label: "Backlog", tone: "var(--panel-3)" },
+  { id: TASK_STATUS.DONE, label: t("Done"), tone: "var(--green)" },
+  { id: TASK_STATUS.REVIEW, label: t("In review"), tone: "var(--amber)" },
+  { id: TASK_STATUS.IN_PROGRESS, label: t("In progress"), tone: "var(--accent)" },
+  { id: TASK_STATUS.BACKLOG, label: t("Backlog"), tone: "var(--panel-3)" },
 ];
 
 /**
@@ -62,7 +63,7 @@ export function TimelineView({ tasks, goals, projects }: { tasks: TaskRecord[];
       {unlinked.length > 0 && (
         <section className="card" style={{ padding: 18 }}>
           <div className="row" style={{ gap: 12 }}>
-            <span style={{ fontWeight: 560, fontSize: 14, color: "var(--text-2)", flex: 1 }}>Unlinked tasks</span>
+            <span style={{ fontWeight: 560, fontSize: 14, color: "var(--text-2)", flex: 1 }}>{t("Unlinked tasks")}</span>
             <CompletionReadout tasks={unlinked} />
           </div>
           <StatusBar tasks={unlinked} height={6} style={{ marginTop: 12 }} />
diff --git a/src/renderer/src/pages/work/task-helpers.ts b/src/renderer/src/pages/work/task-helpers.ts
index 52410ab0..8c44ca54 100644
--- a/src/renderer/src/pages/work/task-helpers.ts
+++ b/src/renderer/src/pages/work/task-helpers.ts
@@ -5,6 +5,7 @@ import {
   type TaskRunRecord,
   type TaskStatus,
 } from "../../../../shared/domain";
+import { t } from "../../i18n/i18n";
 
 export function nextStatus(status: TaskStatus): TaskStatus | null {
   if (status === TASK_STATUS.BACKLOG) return TASK_STATUS.IN_PROGRESS;
@@ -14,10 +15,17 @@ export function nextStatus(status: TaskStatus): TaskStatus | null {
 }
 
 export function prettyStatus(status: TaskStatus): string {
-  return status.replaceAll("_", " ");
+  if (status === TASK_STATUS.BACKLOG) return t("backlog");
+  if (status === TASK_STATUS.IN_PROGRESS) return t("in progress");
+  if (status === TASK_STATUS.REVIEW) return t("review");
+  return t("done");
 }
 
 export function prettyRunState(state: string): string {
+  if (state === "queued") return t("queued");
+  if (state === "running") return t("running");
+  if (state === "completed") return t("completed");
+  if (state === "failed") return t("failed");
   return state.replaceAll("_", " ");
 }
 
diff --git a/src/renderer/src/shared/Dialog.tsx b/src/renderer/src/shared/Dialog.tsx
index d67b2e03..0b9bad54 100644
--- a/src/renderer/src/shared/Dialog.tsx
+++ b/src/renderer/src/shared/Dialog.tsx
@@ -1,5 +1,6 @@
 import type { FormEvent, ReactNode } from "react";
 import { Button } from "./ui";
+import { t } from "../i18n/i18n";
 
 export function Dialog({
   title,
@@ -25,7 +26,7 @@ export function Dialog({
         <h2 className="modal-title">{title}</h2>
         <div style={{ display: "grid", gap: 12 }}>{children}</div>
         <div className="modal-actions">
-          <Button tone="ghost" onClick={onClose}>{hideSubmit ? "Close" : "Cancel"}</Button>
+          <Button tone="ghost" onClick={onClose}>{hideSubmit ? t("Close") : t("Cancel")}</Button>
           {!hideSubmit && <Button tone="primary" type="submit">{submitLabel}</Button>}
         </div>
       </form>
diff --git a/src/renderer/src/shared/OrgSwitcher.tsx b/src/renderer/src/shared/OrgSwitcher.tsx
index b0dc2414..3215cd8e 100644
--- a/src/renderer/src/shared/OrgSwitcher.tsx
+++ b/src/renderer/src/shared/OrgSwitcher.tsx
@@ -2,6 +2,7 @@ import { useEffect, useRef, useState } from "react";
 import type { AppSnapshot, OrganizationRecord } from "../../../shared/domain";
 import { Icon } from "./Icon";
 import { CascadeMenu, CascadeRow } from "./CascadeMenu";
+import { t } from "../i18n/i18n";
 
 function orgInitial(name: string): string {
   return name.trim().charAt(0).toUpperCase();
@@ -54,7 +55,7 @@ export function OrgSwitcher({ snapshot, activeOrgId, onSelect, onNew, onDelete }
       <button
         type="button"
         className="sidebar-org"
-        aria-label={`${active.name} — switch organization`}
+        aria-label={t("{name} — switch organization", { name: active.name })}
         aria-haspopup="menu"
         aria-expanded={open}
         onClick={() => setOpen((value) => !value)}
@@ -66,17 +67,17 @@ export function OrgSwitcher({ snapshot, activeOrgId, onSelect, onNew, onDelete }
       {open && (confirmingOrg ? (
         <div role="menu" className="org-menu">
           <div className="org-menu-confirm">
-            <div className="org-menu-confirm-title">Delete “{confirmingOrg.name}”?</div>
-            <div className="org-menu-confirm-hint">All agents, work, chats, and files are permanently removed.</div>
+            <div className="org-menu-confirm-title">{t("Delete “{name}”?", { name: confirmingOrg.name })}</div>
+            <div className="org-menu-confirm-hint">{t("All agents, work, chats, and files are permanently removed.")}</div>
             <div className="org-menu-confirm-actions">
-              <button type="button" className="org-menu-confirm-no" onClick={() => setConfirmingDelete(null)}>Cancel</button>
-              <button type="button" className="org-menu-confirm-yes" onClick={() => handleDelete(confirmingOrg.id)}>Delete</button>
+              <button type="button" className="org-menu-confirm-no" onClick={() => setConfirmingDelete(null)}>{t("Cancel")}</button>
+              <button type="button" className="org-menu-confirm-yes" onClick={() => handleDelete(confirmingOrg.id)}>{t("Delete")}</button>
             </div>
           </div>
         </div>
       ) : (
         <CascadeMenu className="org-menu">
-          <div className="org-menu-section-label">Organizations</div>
+          <div className="org-menu-section-label">{t("Organizations")}</div>
           {orgs.map((org) => (
             <CascadeRow
               key={org.id}
@@ -111,7 +112,7 @@ export function OrgSwitcher({ snapshot, activeOrgId, onSelect, onNew, onDelete }
             onClick={() => { setOpen(false); setConfirmingDelete(null); onNew(); }}
           >
             <span className="icon-box" style={{ width: 18, height: 18 }}><Icon name="plus" size={16} color="var(--text-2)" /></span>
-            <span>New organization</span>
+            <span>{t("New organization")}</span>
           </button>
         </CascadeMenu>
       ))}
@@ -136,12 +137,12 @@ function OrgActions({
       {!isActive && (
         <button type="button" role="menuitem" className="org-menu-action" onClick={onSwitch}>
           <span className="icon-box" style={{ width: 18, height: 18 }}><Icon name="arrowRight" size={16} color="var(--text-2)" /></span>
-          <span>Switch to this org</span>
+          <span>{t("Switch to this org")}</span>
         </button>
       )}
       <button type="button" role="menuitem" className="org-menu-action danger" onClick={onDelete}>
         <span className="icon-box" style={{ width: 18, height: 18 }}><Icon name="x" size={16} color="var(--red)" /></span>
-        <span>Delete organization</span>
+        <span>{t("Delete organization")}</span>
       </button>
     </>
   );
diff --git a/src/renderer/src/shared/SearchDialog.tsx b/src/renderer/src/shared/SearchDialog.tsx
index b24dbfd6..3ae8c53b 100644
--- a/src/renderer/src/shared/SearchDialog.tsx
+++ b/src/renderer/src/shared/SearchDialog.tsx
@@ -3,23 +3,24 @@ import type { AppSnapshot, SearchEntityType, SearchResultRecord } from "../../..
 import { SEARCH_ENTITY_TYPES } from "../../../shared/domain";
 import type { RouteId } from "./Shell";
 import { Button, Icon, Pill } from "./ui";
+import { t } from "../i18n/i18n";
 
 type SearchFilter = "all" | SearchEntityType;
 
 const LABELS: Record<SearchEntityType, string> = {
-  employee: "Employee",
-  agent: "Agent",
-  task: "Task",
-  goal: "Goal",
-  project: "Project",
-  workspace: "Workspace",
-  approval: "Approval",
-  chat_space: "Space",
-  chat_message: "Message",
-  file: "File",
-  provider: "Provider",
-  social_account: "Social",
-  scheduled_post: "Post",
+  employee: t("Employee"),
+  agent: t("Agent"),
+  task: t("Task"),
+  goal: t("Goal"),
+  project: t("Project"),
+  workspace: t("Workspace"),
+  approval: t("Approval"),
+  chat_space: t("Space"),
+  chat_message: t("Message"),
+  file: t("File"),
+  provider: t("Provider"),
+  social_account: t("Social"),
+  scheduled_post: t("Post"),
 };
 
 export function SearchDialog({
@@ -80,28 +81,28 @@ export function SearchDialog({
   };
 
   return (
-    <div role="dialog" aria-modal="true" aria-label="Search" style={overlayStyle}>
+    <div role="dialog" aria-modal="true" aria-label={t("Search")} style={overlayStyle}>
       <form onSubmit={submit} style={panelStyle}>
         <div className="row" style={{ padding: "10px 12px", borderBottom: "1px solid var(--border-soft)" }}>
           <Icon name="search" size={14} color="var(--text-3)" />
           <input
             autoFocus
-            aria-label="Search query"
+            aria-label={t("Search query")}
             value={query}
             onChange={(event) => setQuery(event.target.value)}
             style={inputStyle}
           />
           <select
-            aria-label="Search filter"
+            aria-label={t("Search filter")}
             className="input"
             value={filter}
             onChange={(event) => setFilter(event.target.value as SearchFilter)}
             style={{ width: 150, height: 28, padding: "2px 8px", fontSize: 12 }}
           >
-            <option value="all">All</option>
+            <option value="all">{t("All")}</option>
             {SEARCH_ENTITY_TYPES.map((type) => <option key={type} value={type}>{LABELS[type]}</option>)}
           </select>
-          <Button size="small" onClick={onClose}>Close</Button>
+          <Button size="small" onClick={onClose}>{t("Close")}</Button>
         </div>
         <div style={{ maxHeight: 420, overflow: "auto", padding: 8 }}>
           {visibleResults.map((result) => (
diff --git a/src/renderer/src/shared/Shell.tsx b/src/renderer/src/shared/Shell.tsx
index 15b040ce..2c9ea2c4 100644
--- a/src/renderer/src/shared/Shell.tsx
+++ b/src/renderer/src/shared/Shell.tsx
@@ -5,6 +5,7 @@ import { NavIcon } from "./NavIcon";
 import { OrgSwitcher } from "./OrgSwitcher";
 import { SearchDialog } from "./SearchDialog";
 import { TopbarSlotContext } from "./topbar-context";
+import { t } from "../i18n/i18n";
 
 export type RouteId =
   | "home"
@@ -28,15 +29,15 @@ interface NavSpec {
 const FLUSH_ROUTES = new Set<RouteId>(["chat", "settings", "files", "runs", "office"]);
 
 const allNav: NavSpec[] = [
-  { id: "home", label: "Home" },
-  { id: "work", label: "Work" },
-  { id: "team", label: "Team" },
-  { id: "office", label: "Office" },
-  { id: "chat", label: "Messages" },
-  { id: "runs", label: "Runs" },
-  { id: "files", label: "Files" },
-  { id: "approvals", label: "Approvals" },
-  { id: "connectors", label: "Connectors" },
+  { id: "home", label: t("Home") },
+  { id: "work", label: t("Work") },
+  { id: "team", label: t("Team") },
+  { id: "office", label: t("Office") },
+  { id: "chat", label: t("Messages") },
+  { id: "runs", label: t("Runs") },
+  { id: "files", label: t("Files") },
+  { id: "approvals", label: t("Approvals") },
+  { id: "connectors", label: t("Connectors") },
 ];
 
 export function Shell({
@@ -88,9 +89,9 @@ export function Shell({
           onNew={onNewOrg}
           onDelete={onDeleteOrg}
         />
-        <button type="button" className="search-bar" aria-label="Search" onClick={() => setSearchOpen(true)}>
+        <button type="button" className="search-bar" aria-label={t("Search")} onClick={() => setSearchOpen(true)}>
           <Icon name="search" size={13} />
-          <span>Search</span>
+          <span>{t("Search")}</span>
           <span className="search-kbd">⌘K</span>
         </button>
         <nav className="nav">
@@ -102,13 +103,13 @@ export function Shell({
         <nav className="nav">
           <button
             type="button"
-            aria-label="Settings"
+            aria-label={t("Settings")}
             aria-current={route === "settings" ? "page" : undefined}
             className={`nav-item ${route === "settings" ? "active" : ""}`.trim()}
             onClick={() => setRoute("settings")}
           >
             <span className="icon-box"><NavIcon route="settings" /></span>
-            <span>Settings</span>
+            <span>{t("Settings")}</span>
           </button>
         </nav>
         <div className="sidebar-foot">
@@ -125,9 +126,9 @@ export function Shell({
             <span className="topbar-actions-slot" ref={setActionsSlot} />
             {!isMac && (
               <span className="window-controls">
-                <IconButton icon="minus" label="Minimize" onClick={() => void window.agentCompany.windowMinimize()} />
-                <IconButton icon="grid" label="Maximize" onClick={() => void window.agentCompany.windowMaximize()} />
-                <IconButton icon="x" label="Close" onClick={() => void window.agentCompany.windowClose()} />
+                <IconButton icon="minus" label={t("Minimize")} onClick={() => void window.agentCompany.windowMinimize()} />
+                <IconButton icon="grid" label={t("Maximize")} onClick={() => void window.agentCompany.windowMaximize()} />
+                <IconButton icon="x" label={t("Close")} onClick={() => void window.agentCompany.windowClose()} />
               </span>
             )}
           </div>
@@ -178,7 +179,7 @@ function NavButton({
 function labelFor(route: RouteId): string {
   const spec = allNav.find((item) => item.id === route);
   if (spec) return spec.label;
-  if (route === "settings") return "Settings";
+  if (route === "settings") return t("Settings");
   throw new Error(`Unknown route: ${route}`);
 }
 
diff --git a/src/shared/desktop-api.ts b/src/shared/desktop-api.ts
index cbf6ab0d..42e083a6 100644
--- a/src/shared/desktop-api.ts
+++ b/src/shared/desktop-api.ts
@@ -186,6 +186,7 @@ export interface DesktopApi {
   search(input: SearchInput): Promise<DesktopResult<SearchResultRecord[]>>;
   subscribe(callback: (event: RendererEvent) => void): () => void;
   platform: "win32" | "darwin" | "linux";
+  language: "en" | "zh";
   windowMinimize(): Promise<void>;
   windowMaximize(): Promise<void>;
   windowClose(): Promise<void>;
diff --git a/tests/unit/i18n-coverage.test.ts b/tests/unit/i18n-coverage.test.ts
new file mode 100644
index 00000000..1e2e8a4e
--- /dev/null
+++ b/tests/unit/i18n-coverage.test.ts
@@ -0,0 +1,53 @@
+import { readdirSync, readFileSync } from "node:fs";
+import { join } from "node:path";
+import { describe, expect, test } from "vitest";
+import { zh } from "../../src/renderer/src/i18n/zh";
+
+const RENDERER_ROOT = join(__dirname, "../../src/renderer/src");
+
+function rendererSources(dir: string): string[] {
+  const out: string[] = [];
+  for (const entry of readdirSync(dir, { withFileTypes: true })) {
+    const path = join(dir, entry.name);
+    if (entry.isDirectory()) out.push(...rendererSources(path));
+    else if (/\.(ts|tsx)$/.test(entry.name)) out.push(path);
+  }
+  return out;
+}
+
+describe("i18n coverage", () => {
+  const sources = rendererSources(RENDERER_ROOT);
+
+  test("every t() key has a Chinese translation", () => {
+    const missing = new Set<string>();
+    for (const path of sources) {
+      const src = readFileSync(path, "utf8");
+      for (const match of src.matchAll(/\bt\(\s*"((?:[^"\\]|\\.)*)"/g)) {
+        if (!(match[1] in zh)) missing.add(match[1]);
+      }
+    }
+    expect([...missing].sort()).toEqual([]);
+  });
+
+  test("t() keys are plain double-quoted literals", () => {
+    const offenders: string[] = [];
+    for (const path of sources) {
+      if (path.includes("/i18n/") || path.includes("\\i18n\\")) continue;
+      const src = readFileSync(path, "utf8");
+      // The key must be the literal first argument — expressions (ternaries,
+      // variables, other quotes) hide keys from extraction and translation.
+      if (/\bt\(\s*(?!")/.test(src)) offenders.push(path.slice(RENDERER_ROOT.length + 1));
+    }
+    expect(offenders).toEqual([]);
+  });
+
+  test("translations keep their placeholders", () => {
+    const broken: string[] = [];
+    for (const [key, value] of Object.entries(zh)) {
+      const wanted = [...key.matchAll(/\{(\w+)\}/g)].map((match) => match[1]).sort();
+      const got = [...value.matchAll(/\{(\w+)\}/g)].map((match) => match[1]).sort();
+      if (wanted.join(",") !== got.join(",")) broken.push(key);
+    }
+    expect(broken).toEqual([]);
+  });
+});