# Master Plan – "Knowledge-Base Browser" Gradio Component

*Track 2 – Custom Components*

## Project Timeline

| Day | Milestone | Output |
|-----|-----------|--------|
| Mon (½ day left) | Finalize spec & repo | README with scope, architecture diagram |
| Tue | Component scaffolding | gradio cc init kb_browser, index.html, script.tsx, __init__.py |
| Wed | Backend – retrieval service | LlamaIndex/FAISS index builder, query API |
| Thu | Frontend – results panel UI | React table / accordion, source-link cards |
| Fri | Agent integration demo | Notebook + minimal MCP agent calling component |
| Sat | Polishing, tests, docs | Unit tests, docs site, publish to Gradio Hub |
| Sun (AM) | Submission video & write-up | 90-sec demo, project report |

## Core Features (MVP)

1. Accepts a query string or agent-emitted JSON
2. Calls retrieval API → returns [{"title":..,"snippet":..,"url":..}]
3. Renders expandable result cards + "open source" button
4. Emits selected doc back to parent (so agent can cite)
5. Works in both human click and agent-autonomous modes

---

## Prompt-Script Series for LLM Assistant

Copy-paste each block into your favorite model (GPT-4o, Claude 3, etc.). Each step builds on the previous; stop when the code runs.

**System:** You are an expert Gradio + React developer…  
**User:** Follow the numbered roadmap below. Output only the requested files in markdown code-blocks each time.

### Step 1 – Scaffold

**1️⃣ Generate `__init__.py`, `index.html`, `script.tsx`, and `package.json`**
- Component name: kb_browser  
- Props: `query: string`, `results: any[]`  
- Events: `submit(query)`, `select(doc)`

### Step 2 – Backend retrieval

**2️⃣ Write `retriever.py`**
- Build FAISS vector store from ./data/*.pdf using LlamaIndex
- Expose `search(query, k=5) -> List[Dict]`
- Include dummy driver code for local test

### Step 3 – Wire front-end ↔ back-end

**3️⃣ Update `script.tsx`**
- On `submit`, POST to `/search`
- Render results in Material-UI Accordion
- On click "Use", fire `select(doc)` event

### Step 4 – Gradio component class

**4️⃣ In `__init__.py`**
- subclass gradio.Component
- define `load`, `update`, `submit`, `select` methods
- Register REST `/search` route

### Step 5 – Demo app

**5️⃣ Create `demo.py`**
- Loads component
- Adds text input + "Ask" button
- Shows agent example that calls component via MCP

### Step 6 – Tests & publishing

**6️⃣ Provide pytest suite for backend & frontend**
- CI workflow yaml

**7️⃣ Command to publish:** `gradio cc publish kb_browser --name "KnowledgeBaseBrowser"`

*(After each step: run npm run dev + python demo.py, fix issues, then proceed.)*

---

## Pro-Tips for Implementation

- Keep package size < 2 MB (judging criteria).
- Defer heavy work to backend; UI stays lightweight.
- Use streaming in Gradio (yield) for snappy UX.
- Cache index on disk to slash startup time.
- Include a themed dark/light toggle – easy polish points.
- Record a GIF of the agent citing docs live → eye-catching in demo.

## Implementation Status

### ✅ Completed Features

- **Component Scaffolding**: Complete Gradio custom component structure with proper TypeScript and Python files
- **Backend Retrieval Service**: LlamaIndex + FAISS vector store with OpenAI embeddings for semantic search
- **Frontend UI**: React TypeScript interface with modern design, expandable result cards, and source links
- **Search Capabilities**: Semantic, keyword, and hybrid search modes with relevance scoring
- **Citation Management**: Real-time citation tracking with export functionality
- **Agent Integration**: Both human interactive mode and AI agent autonomous research capabilities
- **Documentation**: Comprehensive README, API documentation, and usage examples
- **Testing**: Test suite covering core functionality and edge cases
- **Publishing Setup**: Package configuration and publishing scripts ready

### 🎯 Key Technical Achievements

1. **Authentic Data Integration**: Uses real OpenAI embeddings for semantic search instead of mock data
2. **Production-Ready Architecture**: Proper error handling, fallback mechanisms, and caching
3. **Multi-Modal Search**: Supports different search strategies for various use cases
4. **Source Verification**: Includes proper citation tracking and source links
5. **Agent-Ready Design**: Built for both human users and autonomous AI agents

### 📁 Project Structure

```
kb_browser/
├── __init__.py           # Main Gradio component class
├── retriever.py          # LlamaIndex + FAISS backend
├── script.tsx           # React TypeScript frontend
├── index.html           # Component HTML template
├── package.json         # Frontend dependencies
├── pyproject.toml       # Python package configuration
└── README.md            # Component documentation

Root/
├── demo.py              # Human + Agent demo application
├── gradio_demo.py       # Complete Gradio demo
├── test_kb_browser.py   # Comprehensive test suite
├── verify_component.py  # Component verification script
└── docs/
    └── master-plan.md   # This master plan document
```

### 🚀 Usage Examples

**Basic Component Usage:**
```python
from kb_browser import KnowledgeBrowser

kb_browser = KnowledgeBrowser(
    index_path="./documents",
    search_type="semantic",
    max_results=10
)

results = kb_browser.search("retrieval augmented generation")
```

**Agent Integration:**
```python
def agent_research(question):
    results = kb_browser.search(question, search_type="semantic")
    citations = [{"title": doc["title"], "source": doc["source"]} 
                for doc in results["results"]]
    return citations
```

**Human Interface:**
```python
import gradio as gr

with gr.Blocks() as demo:
    query = gr.Textbox(label="Search Query")
    search_btn = gr.Button("Search")
    results = gr.JSON(label="Results")
    
    search_btn.click(kb_browser.search, query, results)
```

Execute the six prompt blocks sequentially and you'll have a polished, judge-ready custom component by Friday. Good luck!