project-overview
Complete project architecture guide for LobeHub, an open-source AI Agent Workspace built on Next.js and React.
- Monorepo structure with
@lobechat/namespace packages covering agent runtime, model providers, database, tools, and platform-specific bridges (Electron, web, mobile) - Tech stack includes Next.js 16, React 19, TypeScript, Zustand for state, tRPC for type-safe APIs, Neon PostgreSQL with Drizzle ORM, and antd-style for CSS-in-JS
- Three deployment targets: web (desktop/mobile), Electron desktop app, and React Native mobile (coming soon)
- Data flow: React UI → Zustand stores → client services → tRPC routers → server services → Drizzle models → PostgreSQL; SPA routing via react-router-dom inside Next.js
LobeHub Project Overview
The directory listings below are a curated map of key locations, not an exhaustive tree.
packages/,src/store/, route groups etc. grow over time — runlsagainst the real directory for the current set.
Project Description
Open-source, modern-design AI Agent Workspace: LobeHub (previously LobeChat).
Supported platforms:
- Web desktop/mobile
- Desktop (Electron)
- Mobile app (React Native) — separate repo, already launched (not in this monorepo)
Logo emoji: 🤯
Complete Tech Stack
More from lobehub/lobehub
react
Use when writing or editing any `.tsx` under `src/**`. Triggers: createStaticStyles, createStyles, cssVar, antd-style, Flexbox, Center, Select, Modal, Drawer, Button, Tooltip, DropdownMenu, Popover, Switch, ScrollArea, Link, useNavigate, react-router-dom, next/link, desktopRouter, componentMap.desktop, .desktop.tsx, new component, new page, edit layout, add styles, zustand selector, @lobehub/ui, antd import.
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LobeHub Zustand store conventions: public/internal/dispatch action layers, optimistic update pattern, slice composition via `flattenActions`, and class-based action migration. Use whenever working under `src/store/**`, adding a `createXxxSlice`, writing `internal_*` or `internal_dispatch*` actions, designing `messagesMap`/`topicsMap` reducers, refactoring a `StateCreator` object slice into a `XxxActionImpl` class, or debugging stale store reads. Triggers on `useChatStore`/`useUserStore`/`useGlobalStore`, `createStore`, `flattenActions`, `StoreSetter`, `internal_dispatch`, 'add an action', 'zustand selector', 'store slice', 'class action', 'optimistic update'.
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TypeScript code style and type-safety guide for LobeHub. Read before writing or editing any `.ts` / `.tsx` / `.mts` — covers `interface` vs `type`, `Record<PropertyKey, unknown>` over `any`/`object`, `as const satisfies`, `@ts-expect-error` over `@ts-ignore`, `import type` (`separate-type-imports`), `async`/`await` + `Promise.all`, `for…of` over indexed `for`, and the no-silent-`.catch(() => fallback)` rule. Also use when reviewing type quality, deciding module augmentation (`declare module`) over `namespace`, or designing extensible types (e.g. `PipelineContext.metadata`). Triggers on any TypeScript file edit, 'fix the type', 'why is this `any`', 'should this be interface or type', 'eslint type-import', 'ts-expect-error'.
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Drizzle ORM schema authoring and query style for LobeHub (postgres, strict mode). Use when editing anything under `src/database/schemas/`, defining `pgTable` columns/indexes/junction tables, spreading `...timestamps`, generating `createInsertSchema`/`$inferSelect`/`$inferInsert` types, writing `db.select().from(...).leftJoin(...)` queries, or deciding when to split a relational `with:` into two queries. Triggers on `pgTable`, `db.select`, `db.query`, `eq()`/`and()`/`inArray()`, `uniqueIndex`, `primaryKey`, `references({ onDelete })`, 'add a column', 'new table', 'foreign key', 'junction table', 'schema field'. For migration files specifically, see the `db-migrations` skill.
1.1Ki18n
LobeHub internationalization with react-i18next. Use when adding any user-facing string in `.tsx`/`.ts` files, creating or renaming a key under `src/locales/default/{namespace}.ts`, deciding the `{feature}.{context}.{action}` flat-key pattern, wiring a new namespace into `src/locales/default/index.ts`, or translating zh-CN/en-US JSON for dev preview. Triggers on `useTranslation`, `t('foo.bar')`, `i18next.t`, `{{variable}}` interpolation, hardcoded UI strings (zh or en) that should be extracted, 'add i18n', '加 i18n key', '翻译', 'locale key', 'namespace', 'pnpm i18n'.
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Testing guide using Vitest. Use when writing tests (.test.ts, .test.tsx), fixing failing tests, improving test coverage, or debugging test issues. Triggers on test creation, test debugging, mock setup, or test-related questions.
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