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AI storyteller that turns screen time into active adventure. Puck — a live Gemini agent — narrates interactive fairytales, generates watercolor scenes, and only continues the story when the child completes a real physical challenge. Built with Gemini Live 2.5, Google ADK, Veo 3.1, React 19.

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# ✨ Gemini Tales

> **The story that doesn't move until you do.**

![Status](https://img.shields.io/badge/status-MVP-brightgreen?style=flat-square)
![Gemini](https://img.shields.io/badge/AI-Gemini-4285F4?style=flat-square&logo=google)
![ADK](https://img.shields.io/badge/Framework-Google%20ADK-673AB7?style=flat-square&logo=google)
![Cloud](https://img.shields.io/badge/Hosted-Google%20Cloud-0F9D58?style=flat-square&logo=googlecloud)
![Version](https://img.shields.io/badge/version-v2.0.0-orange?style=flat-square)

> **Turning screen time into active adventure — A magical AI storyteller that sees, hears, and moves with your child.**

Gemini Tales is an interactive fairytale book and a **Creative Storyteller ✍️** that **breaks the traditional "text box" paradigm**. It transforms screen time into an active adventure by creating a **seamless** experience where AI doesn't just process text—it sees, hears, and moves with the child.

Built with a premium **React 19 + Vite** frontend, it leverages the **Gemini Live API** for **Interleaved Output** — weaving real-time voice, vision, and watercolor illustrations into a single, **context-aware** stream that makes the magic **feel alive**.

---

## 📍 Quick Navigation

- [📺 Watch in Action](#-watch-in-action)
- [🎭 Dual Storytelling Modes](#-dual-storytelling-modes)
- [🏗️ Project Structure](#-project-structure)
- [🧚 Magic Behind the Scenes](#-magic-behind-the-scenes)
- [🕹️ Interactive Control Center](#-interactive-control-center)
- [🛠️ Tech Stack](#️-tech-stack)
- [🚀 Getting Started (Run & Deploy)](#-getting-started)
- [🧪 Testing & Interactive Guide](#-testing--interactive-guide)
- [👩‍🎓 Hackathon & Build Story](#-hackathon--build-story)

---

## 📺 Watch in Action

Gemini Tales - Early Submission:
[![Gemini Tales Demo](https://img.youtube.com/vi/DWHs0eOIf_Q/maxresdefault.jpg)](https://youtu.be/DWHs0eOIf_Q)

Gemini Tales - Newer Demo:
[![Gemini Tales Newer Demo](https://img.youtube.com/vi/DCOfdM-uKt0/maxresdefault.jpg)](https://youtu.be/DCOfdM-uKt0)

---

## 🎭 Dual Storytelling Modes

Gemini Tales offers two distinct ways to experience the magic:

| Feature | 🎙️ Live Mode (Spontaneous) | 🤖 Agent Mode (Structured) |
|---|---|---|
| **Puck's Role** | **The Improviser**: Composes and narrates purely on the fly. | **The Narrator**: Brings a carefully crafted script to life. |
| **Preparation** | No wait time. Jump straight into the action. | 30-60s "Story Crafting" context formation. |
| **Backend Agents** | Idle. | **Active Background**: Researching and weaving the plot. |
| **Technology** | Direct **Gemini Live 2.5 Flash** session. | **Orchestrator (3.1 Pro)** + **Live Narrator**. |
| **Visual Flow** | Interleaved watercolor illustrations. | Themed story-driven scenes. |

> **Note on Agent Mode**: While the background agents (Researcher, Judge, Storysmith) are hard at work forming the perfect context, their direct technical scripts are kept "behind the scenes" to keep the child's interface clean and magical. Look forward to seeing their raw creative process in a future **Gemini Tales Premium** release!

---

## 🏗️ Project Structure

- **`frontend/`**: React 19 application using Tailwind CSS and Gemini Live SDK.
- **`backend/app/`**: **Main Agent (Puck)** — the Live Narrator that handles real-time voice, vision, and telling the story.
- **`backend/agents/`**: **Supporting Agents** — background microservices for Researcher, Judge, and Storysmith.
  - **`backend/agents/run_local.ps1`**: Local orchestrator to wake up all supporting agents.

### 🏛️ High-Level Architecture

```mermaid
graph TD
    User([User]) <--> Browser["Browser (Magic Mirror UI)"]
    
    subgraph "Main Interaction Agent (Puck)"
        Browser <-->|WebSocket| Puck["Puck (Live Narrator)"]
        subgraph "Puck's Toolbox"
            Illustrator["Illustration Engine"]
            Awards["Achievement Manager"]
        end
        Puck <--> Illustrator
        Puck <--> Awards
    end
    
    subgraph "Google AI Infrastructure"
        Puck <-->|Multimodal Flow| GeminiLive[Gemini Live 2.5 Flash]
        Illustrator -->|Video Generation| Veo[Veo 3.1]
        Illustrator -->|Dynamic Rendering| FlashImage[Gemini 2.5 Flash-Image]
    end
    
    subgraph "Supporting Brain (Agent Mode)"
        Puck -->|Request Pipeline| Orchestrator[Orchestrator]
        Orchestrator <-->|A2A| Researcher[Researcher]
        Orchestrator <-->|A2A| Judge[Judge]
        Orchestrator <-->|A2A| Storysmith[Storysmith]
    end
    
    style Browser fill:#f9f,stroke:#333,stroke-width:2px
    style Puck fill:#f9f,stroke:#333,stroke-width:2px
    style Orchestrator fill:#ccf,stroke:#333,stroke-width:2px
    style Illustrator fill:#fff4dd,stroke:#d4a017,stroke-width:2px
```

> 📖 **Deep Dive**: For a detailed look at system design, data flows, and design decisions, see the [**Full Architecture Documentation**](ARCHITECTURE.md).

---

## 🧚 Magic Behind the Scenes

- 🌿 **Cinematic Animation**: **Puck** comes to life with **Veo 3.1**, generating magical video previews that make the world **feel alive**.
- ✌️ **Seamless Interaction**: Real-time visual recognition and **context-aware** response: Stories only begin when Puck sees the "Magic Sign" (two fingers up).
- 📸 **Portrait Transformation**: Upload a photo to see the child transformed into a watercolor fairytale character.
- 🎨 **Visual Consistency**: High-quality scene illustrations are automatically generated by **Gemini 2.5 Flash-Image** as the story unfolds, creating a world that is always aware of the narrative state.
- ⭐ **Achievements & Badges**: Complete physical challenges (like "Hop like a bunny") to unlock magical badges and track your hero's journey in real-time.

---

## 🕹️ Interactive Control Center

The "Magic Mirror" cockpit provides full transparency and control over the AI experience:

- 🔌 **API Lifecycle Management**: One-click connection to the Gemini Pulse with real-time status tracking.
- 🎙️ **Multimodal Inputs**: Live switching between different microphones and cameras to find the best angle for the Magic Sign.
- 💬 **Conversation Hub**: A dual-stream chat system that combines real-time AI transcriptions with manual text input.
- 🔍 **Debug Console**: A dedicated "Technician's View" showing the architectural heartbeat, device sync events, and ADK protocol logs.

---

## 🛠️ Tech Stack

- **Frontend**: React 19, TypeScript, Tailwind CSS.
- **AI Models**: 
  - **Gemini Live 2.5 Flash** (Real-time Audio/Vision)
  - **Gemini 3.1 Pro & Flash-Lite** (Agentic Reasoning)
  - **Veo 3.1** (Cinematic Video Generation)
  - **Gemini 2.5 Flash-Image** (Character Avatars)
- **Backend**: FastAPI, Google ADK, WebSockets.
- **Hosting**: Google Cloud Run, Cloud Artifact Registry.

---

## 🚀 Getting Started

### 1. Prerequisites
- Python 3.10+ and `uv` installed.
- Node.js 18+ and `npm`.
- Google Cloud Project with Gemini API access.

### 2. Launch Instructions (Local Development)

To run the full experience locally, start these components in separate terminals:

**A. Start ADK Agents (The Brain)**
```powershell
cd backend/agents
.\run_local.ps1
```
*This starts the sub-agents on ports 8001–8004 required for Agent Mode.*

**B. Start Main Agent (Puck)**
```bash
cd backend
uv sync
uv run python app/main.py
```
*Starts Puck, the Live Narrator, ready to see and hear you (Port 8000).*

**C. Start Frontend UI**
```bash
cd frontend
npm install
npm run dev
```

### 3. Cloud Deployment (Google Cloud Run)

To ensure this project is **fully reproducible**, I've included automation scripts that handle the complex deployment of my multi-agent architecture to **Google Cloud Run**.

#### A. Prerequisites for Cloud
- [Google Cloud CLI](https://cloud.google.com/sdk/docs/install) installed and authenticated (`gcloud auth login`).
- An active Google Cloud Project with Billing enabled.
- Your `.env` file in `backend/app/` should contain your `GOOGLE_CLOUD_PROJECT` and `GOOGLE_CLOUD_LOCATION`.

#### B. Deploy Supporting Agents (The Brain)
These agents (Researcher, Judge, Storysmith, Orchestrator) provide the agentic reasoning for the story mode.
```powershell
cd backend/agents
.\deploy.ps1
```
*This script automatically bundles shared logic, configures security, and deploys 4 microservices to Cloud Run.*

#### C. Deploy Main App (Puck + Frontend)
This deploys the central "Magic Mirror" interface and the Live Narrator.
```powershell
# Run from the repository root
.\deploy_app.ps1
```
*This script handles the dual-stage build: compiling the React 19 frontend and wrapping it with the FastAPI/Puck bridge into a single production-ready container.*

> 💡 **Pro-Tip**: After deployment, you can manage all AI parameters (Model IDs, API Keys) directly through the Cloud Run environment variables without needing to re-deploy.

---

## 🧪 Testing & Interactive Guide

Follow these steps to ensure a magical and stable session:

### 1. The Character Workshop
- **Customize Puck**: Enter a description for your character or upload a photo to create a personalized fairytale avatar.
- **Bring Him to Life**: Once Puck is generated, click the **Animate** button to see him start moving! (Powered by **Veo 3.1**).
- **Choose Your Journey**: Select **Live Mode** for spontaneous play or **Agent Mode** for a structured, multi-agent story.

### 2. Ignition
- **Live Mode**: Click **Connect API** to establish a direct link with Gemini.
- **Agent Mode**: Click **🚀 Generate Story with Agents** to begin the story crafting process.

### 3. Magical Interaction
- **Listen & Act**: Follow the spoken instructions from Puck.
- **Watch the Magic**: As you journey through the tale, Puck will automatically generate beautiful illustrations for every new scene.
- **Earn Badges**: Successfully complete physical tasks to unlock **Achievements** and see your badge collection grow!
- **Voice Response**: Select your **Microphone** and click **Start Audio** to talk to the mirror.
- **Vision Recognition**: Select your **Camera** and click **Start Video** to show your face and the "Magic Sign".
- **Chat Fallback**: If you're in a quiet place, you can also type messages directly into the **Chat Hub**.

### 4. Troubleshooting
- **No Sound/Image?**: Ensure the correct device is selected in the **Microphone** and **Camera** dropdowns before clicking "Start".
- **Connection**: Check the **Debug Console** to verify that the WebSocket status is "Connected".

---

## 👩‍🎓 Hackathon & Build Story

Created for the **[Gemini Live Agent Challenge](https://devpost.com/software/gemini-tales)**.

Check out the full story of how I built an "AI Nanny" to fight the sedentary lifestyle using Google AI and Google Cloud:  
👉 **[Read the Build Story on Dev.to](https://dev.to/vero-code/gemini-tales-how-i-built-an-ai-nanny-to-fight-the-sedentary-lifestyle-5a65)**

---

## 📜 License

MIT — see [LICENSE](LICENSE).

*Created with ❤️ for the next generation of explorers by [Veronika Kashtanova](https://x.com/veron_code)*

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