# Features Documentation

This comprehensive guide covers all features available in Local Deep Research (LDR).

> **Note**: This documentation is maintained by the community and may contain inaccuracies. While we strive to keep it up-to-date, please verify critical information and report any errors via [GitHub Issues](https://github.com/LearningCircuit/local-deep-research/issues).

## Table of Contents

1. [Research Modes](#research-modes)
2. [Search Capabilities](#search-capabilities)
3. [LLM Integration](#llm-integration)
4. [User Interface Features](#user-interface-features)
5. [Advanced Features](#advanced-features)
6. [Developer Features](#developer-features)
7. [Performance Features](#performance-features)

## Research Modes

### Quick Summary Mode

Fast research mode that provides concise answers with citations.

**Features:**
- Automatic query decomposition
- Parallel search execution
- Smart result synthesis
- Citation tracking
- Structured output with tables when relevant

**Usage:**
```python
from local_deep_research.api import quick_summary

result = quick_summary(
    query="Your research question",
    iterations=2,  # Number of research iterations
    questions_per_iteration=3  # Sub-questions per iteration
)
```

### Detailed Research Mode

Comprehensive analysis mode for in-depth exploration of topics.

**Features:**
- Section-based research organization
- Multiple research cycles
- Cross-reference validation
- Extended context windows
- Detailed citation management

### Report Generation Mode

Creates professional research reports with proper structure.

**Features:**
- Automatic table of contents
- Section headers and organization
- Executive summary generation
- Bibliography management
- Export to PDF/Markdown

### Document Analysis Mode

Searches and analyzes your private document collections.

**Features:**
- Multiple document formats supported
- Vector-based semantic search
- Collection management
- Incremental indexing
- Privacy-preserved processing

### Chat Mode

> **Experimental** — interface and behavior may change before GA.

Interactive multi-turn research conversations. Each session accumulates context across turns and supports streaming progress and follow-up refinement via the sidebar **Chat** link or `/chat/`. Designed for exploring a topic progressively rather than one-off lookups; for single queries, use a research mode directly from the home page.

**Features:**
- Multi-turn conversation with accumulated context (entities, topics, source count)
- Live streaming of research steps and citations as the answer is built
- Persistent sessions in your per-user database (encrypted by default; survive logout)
- Session lifecycle: archive, reactivate, permanently delete
- Optional LLM-generated session titles (toggle via `chat.llm_title_generation`)
- Export a session as Markdown
- Always uses "quick" research mode (v1); one in-flight research per session

## Search Capabilities

### Multi-Engine Search

Simultaneously query multiple search engines for comprehensive results.

**Supported Engines:**
- Academic: arXiv, PubMed, Semantic Scholar
- General: Wikipedia, SearXNG, DuckDuckGo
- Technical: GitHub, Elasticsearch
- Custom: Local documents, LangChain retrievers

### Intelligent Query Routing

The default langgraph-agent strategy selects appropriate search engines dynamically based on query type:
- Scientific queries → Academic engines
- Code questions → GitHub + technical sources
- General knowledge → Wikipedia + web search

### Adaptive Rate Limiting

**Features:**
- Learns optimal wait times per engine
- Automatic retry with exponential backoff
- Fallback engine selection
- Rate limit status monitoring

### Search Strategies

Search strategies:
- `source-based`: Comprehensive research with detailed source tracking
- `focused-iteration`: Iterative refinement, quick Q&A (highest factual accuracy)
- `focused-iteration-standard`: Comprehensive variant with broader exploration
- `topic-organization`: Clusters sources into topics for structured output
- `mcp`: Agentic ReAct-pattern research using MCP tools
- `langgraph-agent`: Autonomous agentic research

See [Architecture Overview](architecture/OVERVIEW.md) for details.

## LLM Integration

### Local Models (via Ollama)

**Supported Models:**
- Llama 3 (8B, 70B)
- Mistral (7B, 8x7B)
- Gemma (7B, 12B)
- DeepSeek Coder
- Custom GGUF models

**Features:**
- Complete privacy
- No API costs
- Model hot-swapping
- GPU acceleration support

### Cloud Models

**Providers:**
- OpenAI (GPT-3.5, GPT-4)
- Anthropic (Claude 3 family)
- Google (Gemini models)
- OpenRouter (100+ models)

**Features:**
- Automatic fallback
- Cost tracking per model
- Token usage monitoring
- Model comparison tools

## User Interface Features

### Web Interface

**Core Features:**
- Real-time research progress
- Interactive result exploration
- Settings management
- Research history
- Export capabilities

### Keyboard Shortcuts

- `ESC`: Cancel current operation
- `Ctrl+Shift+1`: Quick Summary mode
- `Ctrl+Shift+2`: Detailed Research mode
- `Ctrl+Shift+3`: Report Generation
- `Ctrl+Shift+4`: Settings
- `Ctrl+Shift+5`: Analytics

### Real-time Updates

**WebSocket Features:**
- Live research progress
- Streaming results
- Status notifications
- Error handling
- Connection management

### Export Options

**Formats:**
- PDF with formatting
- Markdown with citations
- JSON for programmatic use
- Plain text
- HTML with styling

## Advanced Features

### LangChain Integration

Connect any LangChain-compatible retriever:

```python
from local_deep_research.api import quick_summary

result = quick_summary(
    query="Internal documentation query",
    retrievers={"company_docs": your_retriever},
    search_tool="company_docs"
)
```

**Supported Vector Stores:**
- FAISS
- Chroma
- Pinecone
- Weaviate
- Elasticsearch
- Custom implementations

### MCP Server (Claude Integration)

Use LDR as a research tool directly from Claude Desktop or other MCP-compatible AI assistants.

**Features:**
- 8 tools (5 research, 3 discovery) accessible via Model Context Protocol
- STDIO transport for secure local operation
- Per-call settings overrides
- Autonomous agentic research (langgraph-agent strategy) with dynamic tool selection
- Document analysis with RAG pipeline

See [MCP Server Guide](mcp-server.md) for setup and usage.

### REST API

Full HTTP API for language-agnostic access:

```bash
# Quick summary
POST /api/v1/quick_summary

# Detailed research
POST /api/v1/detailed_research

# Report generation
POST /api/v1/generate_report
```

**Features:**
- OpenAPI specification
- Authentication support
- Rate limiting
- Webhook callbacks
- Batch processing

### Analytics Dashboard

**Metrics Tracked:**
- Cost per research/model
- Token usage patterns
- Response times
- Success rates
- Search engine health
- User ratings

**Time Ranges:**
- Last 7 days
- Last 30 days
- Last 90 days
- All time

### Research History

**Features:**
- Full research archive
- Search within results
- Tagging system
- Sharing capabilities
- Version tracking

## Developer Features

### Python SDK

```python
from local_deep_research import ResearchClient

client = ResearchClient(
    llm_provider="ollama",
    llm_model="llama3:8b",
    search_engines=["searxng", "arxiv"]
)

result = client.research(
    query="Your question",
    strategy="focused_iteration"
)
```

### Benchmarking System

**Features:**
- SimpleQA dataset support
- Custom dataset creation
- Performance metrics
- A/B testing framework
- Configuration optimization

**Usage:**
```bash
python -m local_deep_research.benchmarks \
    --dataset simpleqa \
    --examples 100 \
    --config your_config.json
```


### Command Line Tools

```bash
# Run benchmarks from CLI
python -m local_deep_research.benchmarks --dataset simpleqa --examples 50

# Manage rate limiting
python -m local_deep_research.web_search_engines.rate_limiting status
python -m local_deep_research.web_search_engines.rate_limiting reset
```

## Performance Features

### Caching System

**Document Embedding Cache:**
- Caches document embeddings for faster subsequent searches

### Parallel Processing

**Optimization:**
- Concurrent search queries
- Parallel LLM calls
- Async result processing
- Thread pool management

### Resource Management

**Features:**
- Token budget enforcement
- Request queuing
- Graceful degradation


## Security Features

### Privacy Protection

- Local processing options
- No telemetry by default
- Secure credential storage


## Related Documentation

- [Search Engines Guide](search-engines.md)
- [API Quickstart](api-quickstart.md)
- [Configuration Guide](env_configuration.md)
- [Full Configuration Reference](CONFIGURATION.md)
- [Troubleshooting](troubleshooting.md)
- [Analytics Dashboard](analytics-dashboard.md)
