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claude-world-studio

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AI-powered content pipeline: trend discovery → research → social publishing. Built with Claude Agent SDK + MCP.

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# Claude World Studio

AI-powered content pipeline: from trend discovery to social publishing.

Built with **Claude Agent SDK + MCP** (Model Context Protocol), featuring 3 integrated MCP servers for real-time trends, web scraping, and research automation.

![Welcome Screen](https://raw.githubusercontent.com/claude-world/claude-world-studio/main/demo/01-welcome.png)

## Features

### One-Stop Pipeline

Three clear entry points — no complex menus, just pick and go:

![Pipeline Cards](https://raw.githubusercontent.com/claude-world/claude-world-studio/main/demo/02-pipeline-cards.png)

| Card               | Action                | What happens                                                                   |
| ------------------ | --------------------- | ------------------------------------------------------------------------------ |
| **Freestyle**      | One click, zero input | Auto: trends → read source → verify timeline → patent score → visual → publish |
| **Custom Topic**   | Type your topic       | Deep research → score → visual → publish                                       |
| **Custom + Media** | Type your topic       | Research → NotebookLM slides/video/podcast → publish                           |

### Live Agent Execution

Watch Claude work in real-time — tool calls shown as collapsible blocks with MCP server badges:

![Tool Calls](https://raw.githubusercontent.com/claude-world/claude-world-studio/main/demo/06-tool-calls.png)

- **trend-pulse** (green) — 20 real-time trend sources, zero auth
- **cf-browser** (blue) — Cloudflare Browser Rendering for JS pages
- **notebooklm** (purple) — Research + artifact generation (podcast/slides/video)
- **studio** — Built-in publishing + history tools

### Rich Markdown Responses

Full markdown rendering with syntax highlighting, clickable file path previews, cost/duration tracking, and inline images:

![Rich Content](https://raw.githubusercontent.com/claude-world/claude-world-studio/main/demo/07-history-rich.png)

### Multi-Language (i18n)

Full support for Traditional Chinese, English, and Japanese — all UI, system prompts, and pipeline cards adapt:

<table>
<tr>
<td><img src="demo/09-en-cards.png" alt="EN" width="400"/></td>
<td><img src="demo/10-ja-cards.png" alt="JA" width="400"/></td>
</tr>
<tr>
<td align="center">English</td>
<td align="center">Japanese</td>
</tr>
</table>

### Social Publishing (Native TypeScript)

Built-in Threads publishing via native `fetch()` — no Python dependency. Every post is checked against Meta's patent-based 5-dimension scoring:

| Dimension               | Patent      | What it checks                                   |
| ----------------------- | ----------- | ------------------------------------------------ |
| Hook Power              | EdgeRank    | First line has number or contrast? (10-45 chars) |
| Engagement Trigger      | Dear Algo   | CTA anyone can answer?                           |
| Conversation Durability | 72hr window | Has both sides / contrast?                       |
| Velocity Potential      | Andromeda   | Short enough? Timely?                            |
| Format Score            | Multi-modal | Mobile-scannable?                                |

Quality gates: Overall >= 70, Conversation Durability >= 55.

**Supported post types**: text, image, video, carousel (2-20 items), poll, GIF, link preview, text attachment, spoiler (media blur + text), ghost (24hr ephemeral), quote post, reply control, topic tag, alt text, link-comment auto-reply.

### Multi-Account & Persona

- Multiple Threads accounts with independent personas
- Per-account style (e.g., "tech-educator", "futurist")
- Per-account persona prompt for tone adaptation
- Matrix publishing: same topic → unique content per account

### Scheduled Tasks

Cron-based task scheduling with per-account targeting:

- Define prompt templates with cron schedules
- Target specific social accounts
- Quality gate enforcement (min score threshold)
- Auto-publish or manual review mode
- Execution history with cost/duration tracking
- Reduced tool set for unattended safety (no Bash/Read/Write)

### Visual Content Generation

NotebookLM integration for auto-generating visuals:

- **Image cards** — slides PDF as single-page visual cards
- **Carousel** — multi-page slides split into carousel images
- **Podcast** — AI-generated audio discussion
- **Video** — slides + podcast combined via ffmpeg
- **Mind maps, reports, flashcards, study guides**

All downloads stay within the workspace directory.

### Workspace File Browser

Browse and preview workspace files directly in the UI:

- Directory tree with depth control
- Text file preview (syntax-highlighted)
- Binary file preview (images, PDFs, audio, video)
- Clickable file paths in chat responses
- Workspace-contained — no access outside project folder

### Source Verification & Timeline Rules

Content integrity enforced at the system level:

- **Read original sources** — Never write from titles/metadata alone. 1+ primary source per topic, 2+ for controversial.
- **Timeline verification** — Every fact gets a verified timestamp. Time words mapped by age.
- **No AI filler** — System prompt blocks generic phrases ("in today's world" / "it's worth noting").

### Session Management

- Multiple concurrent sessions with independent workspaces
- Session resume on app restart (conversation history preserved)
- Idle session eviction (30min TTL)
- Query cancellation via interrupt button or CLI

### Agentic Memory, Goals & Strategy (v2.2)

- **Agent Dashboard** (`Agent` page) — four tabs: Goals, Workflows, Memory, Strategy
- **Persistent goals** — PLAN→EXECUTE→REFLECT→COMPLETE state machine with pause/resume/abort, progress tracking, and multi-account matrix runs (`POST /api/agent/matrix-run`)
- **Long-term memory** — SQLite FTS5 knowledge store, type-tagged, searchable from the dashboard and injected into agent context
- **Reflections** — per-session self-evaluation records feeding improvement memories
- **Workflow library** — reusable prompt templates with JSON import/export
- **Strategy agent** — analytics-driven posting-time and content-mix recommendations
- Full REST API under `/api/agent/*` (goals, memories, reflections, workflows, analytics)

### Dark Mode

System/light/dark theme with persistent preference across sessions.

### IME Support

Full CJK input method support — Enter during Chinese/Japanese character composition does not trigger send. Shift+Enter for newline.

### Workspace Security

- AI agent operates within session workspace only
- No access to ~/Downloads, ~/Desktop, ~/Documents, or system paths
- Credentials stored in local SQLite — never searched from filesystem
- Publishing via built-in MCP tool only (no external scripts)
- Session workspace validated at creation (blocks system paths)
- File API restricted to workspace root (symlink-safe realpath check)

## Architecture

```
┌─────────────┐     ┌──────────────────┐     ┌─────────────────┐
│  React UI   │────▶│  Express + WS    │────▶│  Claude Agent   │
│  (Vite)     │◀────│  Server          │◀────│  SDK            │
└─────────────┘     └──────────────────┘     └────────┬────────┘
                                                      │
                           ┌──────────────────────────┤
                           │            │             │
                    ┌──────▼──┐  ┌──────▼───┐  ┌─────▼──────┐
                    │ trend-  │  │ cf-      │  │ notebooklm │
                    │ pulse   │  │ browser  │  │            │
                    │ (MCP)   │  │ (MCP)    │  │ (MCP)      │
                    └─────────┘  └──────────┘  └────────────┘
                    20 sources    Cloudflare    Podcast/Slides
                    zero auth     Browser       /Video/Report
```

## Tech Stack

| Layer       | Tech                                          |
| ----------- | --------------------------------------------- |
| Frontend    | React 19 + Vite + Tailwind CSS                |
| Backend     | Express + WebSocket + Claude Agent SDK        |
| AI Model    | Claude Sonnet 4.6 / Opus 4.6                  |
| MCP Servers | trend-pulse, cf-browser, notebooklm           |
| Publishing  | Native TypeScript fetch() → Threads Graph API |
| Database    | SQLite (better-sqlite3, WAL mode)             |
| Desktop     | Electron 41                                   |
| Markdown    | react-markdown + rehype-sanitize              |

## Prerequisites

- **Node.js** >= 20.19 (see `.nvmrc`; required by better-sqlite3 12 and Vite 8)
- **Claude Code CLI** installed and authenticated (`npm install -g @anthropic-ai/claude-code`)
- **Python** 3.10+ (for MCP servers — or use `uvx` for zero-config setup)

---

## Installation

Five ways to install — pick the one that fits your workflow:

| Method                                                  | Best for          | MCP Servers | Web UI   | Desktop App | CLI |
| ------------------------------------------------------- | ----------------- | ----------- | -------- | ----------- | --- |
| [A. Mac Desktop](#option-a-mac-desktop-app-download)    | Quickest start    | via uvx     | Built-in | Yes         | Yes |
| [B. npm](#option-b-npm-global)                          | Most users        | via uvx     | Yes      | —           | Yes |
| [C. Source](#option-c-from-source)                      | Contributors      | venv or uvx | Yes      | —           | Yes |
| [D. Build Desktop](#option-d-build-desktop-from-source) | Custom builds     | via uvx     | Built-in | Yes         | Yes |
| [E. MCP-only](#option-e-mcp-only-for-claude-code-cli)   | Claude Code users | via uvx     | —        | —           | —   |

### Option A: Mac Desktop App (Download)

Download the latest `.dmg` from [GitHub Releases](https://github.com/claude-world/claude-world-studio/releases/latest), open it, and drag to Applications.

- Double-click to launch — server starts automatically
- No terminal, no Node.js install needed
- MCP servers auto-detected via uvx (install [uv](https://docs.astral.sh/uv/) first)
- All desktop features included: Web UI + MCP + Publishing

> **Requires**: macOS (Apple Silicon). Intel Mac build available on request.

### Option B: npm global

```bash
npm install -g @claude-world/studio

# Set up MCP servers (one-time, auto-cached via uvx)
npx @claude-world/studio setup-mcp

# Start
studio serve
# Web UI + API: http://127.0.0.1:3001  (the built UI is bundled and served here)
```

After install, both `studio` and `claude-world-studio` commands are available globally.

### Option C: From source

```bash
git clone https://github.com/claude-world/claude-world-studio.git
cd claude-world-studio
npm install
cp .env.example .env

# Set up MCP servers
# Option 1: uvx (preferred — no clone, no path config)
npx @claude-world/studio setup-mcp

# Option 2: venv (legacy — clones repos, requires path config)
npx @claude-world/studio setup-mcp --venv

# Start development
npm run dev
# Frontend: http://localhost:5173
# Backend:  http://127.0.0.1:3001
```

Use `node bin/cli.js <command>` or `npm link` to register the `studio` command.

### Option D: Build Desktop from source

Build the native macOS app yourself:

```bash
git clone https://github.com/claude-world/claude-world-studio.git
cd claude-world-studio
npm install

# Development mode (quick test)
npm run electron:dev

# Production build (creates .app + .dmg)
npm run electron:build
# Output: dist/mac-arm64/Claude World Studio.app
```

The Electron app:

- Spawns the Express server automatically on launch
- Loads your login shell PATH (nvm/homebrew compatible)
- Rebuilds native modules (better-sqlite3) for system Node ABI
- Supports all MCP servers (auto-detected via uvx or .env)

### Option E: MCP-only (for Claude Code CLI)

If you already use Claude Code CLI and just want the MCP tools (trend-pulse, cf-browser, notebooklm) without the Studio UI:

```bash
# Install MCP servers via uvx (one-time)
uvx --from 'trend-pulse[mcp]' trend-pulse-server --help
uvx --from cf-browser-mcp cf-browser-mcp --help
uvx --from notebooklm-skill notebooklm-mcp --help
```

Add to your project's `.mcp.json`:

```json
{
  "mcpServers": {
    "trend-pulse": {
      "type": "stdio",
      "command": "uvx",
      "args": ["--from", "trend-pulse[mcp]", "trend-pulse-server"]
    },
    "cf-browser": {
      "type": "stdio",
      "command": "uvx",
      "args": ["--from", "cf-browser-mcp", "cf-browser-mcp"]
    },
    "notebooklm": {
      "type": "stdio",
      "command": "uvx",
      "args": ["--from", "notebooklm-skill", "notebooklm-mcp"]
    }
  }
}
```

Or add to Claude Desktop App config (`~/Library/Application Support/Claude/claude_desktop_config.json`) with the same format.

---

## MCP Server Setup

The app uses 3 MCP servers — **all optional**, the app works with any combination.

### Quick Setup (uvx — recommended)

```bash
npx @claude-world/studio setup-mcp
```

This pre-caches all 3 servers via uvx. No cloning, no path config. Studio auto-detects uvx at runtime.

To update: `npx @claude-world/studio setup-mcp --update`

### Manual Setup (venv)

See [detailed MCP setup guide](docs/content-pipeline-skill.md#mcp-servers-setup) for per-server installation with local venvs.

### MCP Auto-Detection

Studio resolves MCP servers in this order:

1. **Settings UI** — paths configured via Settings page (stored in SQLite)
2. **Environment variables** — `.env` file or exported vars
3. **uvx fallback** — if `uvx` is on PATH, uses cached packages automatically

Use `studio settings detect` (CLI) or **Settings > Scan System** (UI) to check what's available.

---

## Production Pipeline: End-to-End

### Step 1: Install & Configure

```bash
npm install -g @claude-world/studio
npx @claude-world/studio setup-mcp
studio serve
```

### Step 2: Add Social Accounts

**Getting a Threads access token** (one-time):

1. Create a Meta app at [developers.facebook.com](https://developers.facebook.com/) and add the **Threads API** use case
2. Add your Threads profile as a tester and accept the invite in the Threads app (**Settings > Account > Website permissions > Invites**)
3. Generate a long-lived access token with `threads_basic` + `threads_content_publish` scopes (Graph API Explorer or your app's Threads token tool). Long-lived tokens last 60 days and can be refreshed via `GET https://graph.threads.net/refresh_access_token`

Then add the account — via UI: **Settings > Social Accounts**

Via CLI:

```bash
studio account create \
  --name "My Brand" --handle "@mybrand" \
  --platform threads --token YOUR_TOKEN
```

### Step 3: Run the Pipeline

**Web UI**: Click a pipeline card (Freestyle / Custom Topic / Custom + Media)

**CLI (headless)**:

```bash
studio chat --message "Find trending topics, research the best, write and publish" --json
```

**Scheduled**: Settings > Scheduled Tasks — cron + per-account targeting + quality gates

### Step 4: Monitor

```bash
studio status                     # Server health
studio session list --json        # Sessions
studio history --limit 20 --json  # Publish history
```

---

## CLI

Full CLI with 23 commands. All commands support `--json` for programmatic use.

```bash
# Server
studio serve                    # Start web UI
studio status                   # Check if running

# Sessions
studio session list
studio session create --title "Research" --workspace /path
studio session get <ID>
studio session rename <ID> --title "New"
studio session delete <ID>
studio session messages <ID> --limit 20

# Chat (WebSocket streaming)
studio chat --message "Find trends" --json
studio chat --session <ID> --message "Publish the best"
echo "What's trending?" | studio chat --json
studio interrupt <ID>

# Accounts
studio account list
studio account create --name "Main" --handle "@me" --platform threads --token TOKEN
studio account update <ID> --token NEW_TOKEN
studio account delete <ID>

# Settings
studio settings get
studio settings detect          # Auto-detect MCP tools
studio settings apply           # Apply detected values
studio settings set --language en

# Publishing (all Threads post types)
studio publish --account <ID> --text "Hello!" --score 85
studio publish --account <ID> --text "Vote!" --poll "A|B|C"
studio publish --account <ID> --text "Look!" --image URL
studio publish --account <ID> --text "Watch" --video URL
studio publish --account <ID> --text "Slides" --carousel URL1 URL2 URL3
studio publish --account <ID> --text "Post" --link-comment URL
studio history --limit 10

# Files
studio file list <SESSION_ID> --depth 2
studio file read <SESSION_ID> src/index.ts
```

Global flags: `--json`, `--port N` (env: `STUDIO_PORT`), `--host H` (env: `STUDIO_HOST`)

MCP setup wizard: `npx @claude-world/studio setup-mcp`

---

## Security

This is a **local-only development tool**. It runs Claude with full tool access on your machine.

- Binds to `127.0.0.1` only (not exposed to network)
- WebSocket origin verification (exact port whitelist)
- CORS restricted to localhost dev ports
- Workspace containment: AI agent restricted to session workspace
- File API: realpath + workspace-only containment (symlink-safe)
- Path traversal rejected on both client and server
- Session workspace validated at creation (system paths blocked)
- Publishing via native fetch — no Python/shell dependency
- XSS protection via `rehype-sanitize`
- Session isolation: WS messages filtered by sessionId
- Idle session eviction (30min TTL)
- Credentials stored in local SQLite only

> **Warning**: Do NOT expose this server to the internet. The AI agent has `Bash`, `Read`, `Write`, and `Edit` access within the workspace.

## Contributing

Issues and PRs welcome. Please open an issue first to discuss major changes.

## License

MIT

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