PyTorch Documentation Search Tool (Project Paused)

A semantic search prototype for PyTorch documentation with command-line capabilities.

Current Status (April 19, 2025)

⚠️ This project is currently paused for significant redesign.

The tool provides a basic command-line search interface for PyTorch documentation but requires substantial improvements in several areas. While the core embedding and search functionality works at a basic level, both relevance quality and MCP integration require additional development.

Example Output

$ python scripts/search.py "How are multi-attention heads plotted out in PyTorch?"

Found 5 results for 'How are multi-attention heads plotted out in PyTorch?':

--- Result 1 (code) ---
Title: plot_visualization_utils.py
Source: plot_visualization_utils.py
Score: 0.3714
Snippet: # models. Let's start by analyzing the output of a Mask-RCNN model. Note that...

--- Result 2 (code) ---
Title: plot_transforms_getting_started.py
Source: plot_transforms_getting_started.py
Score: 0.3571
Snippet: https://github.com/pytorch/vision/tree/main/gallery/...

What Works

✅ Basic Semantic Search: Command-line interface for querying PyTorch documentation
✅ Vector Database: Functional ChromaDB integration for storing and querying embeddings
✅ Content Differentiation: Distinguishes between code and text content
✅ Interactive Mode: Option to run continuous interactive queries in a session

What Needs Improvement

❌ Relevance Quality: Moderate similarity scores (0.35-0.37) indicate suboptimal results
❌ Content Coverage: Specialized topics may have insufficient representation in the database
❌ Chunking Strategy: Current approach breaks documentation at arbitrary points
❌ Result Presentation: Snippets are too short and lack sufficient context
❌ MCP Integration: Connection timeout issues prevent Claude Code integration

Getting Started

Environment Setup

Create a conda environment with all dependencies:

conda env create -f environment.yml
conda activate pytorch_docs_search

API Key Setup

The tool requires an OpenAI API key for embedding generation:

export OPENAI_API_KEY=your_key_here

Command-line Usage

# Search with a direct query
python scripts/search.py "your search query here"

# Run in interactive mode
python scripts/search.py --interactive

# Additional options
python scripts/search.py "query" --results 5  # Limit to 5 results
python scripts/search.py "query" --filter code  # Only code results
python scripts/search.py "query" --json  # Output in JSON format

Project Architecture

ptsearch/core/: Core search functionality (database, embedding, search)
ptsearch/config/: Configuration management
ptsearch/utils/: Utility functions and logging
scripts/: Command-line tools
data/: Embedded documentation and database
ptsearch/protocol/: MCP protocol handling (currently unused)
ptsearch/transport/: Transport implementations (STDIO, SSE) (currently unused)

Why This Project Is Paused

After evaluating the current implementation, we've identified several challenges that require significant redesign:

Data Quality Issues: The current embedding approach doesn't capture semantic relationships between PyTorch concepts effectively enough. Relevance scores around 0.35-0.37 are too low for a quality user experience.
Chunking Limitations: Our current method divides documentation into chunks based on character count rather than conceptual boundaries, leading to fragmented results.
MCP Integration Problems: Despite multiple implementation approaches, we encountered persistent timeout issues when attempting to integrate with Claude Code:
- STDIO integration failed at connection establishment
- Flask server with SSE transport couldn't maintain stable connections
- UVX deployment experienced similar timeout issues

Future Roadmap

When development resumes, we plan to focus on:

Improved Chunking Strategy: Implement semantic chunking that preserves conceptual boundaries
Enhanced Result Formatting: Provide more context and better snippet selection
Expanded Documentation Coverage: Ensure comprehensive representation of all PyTorch topics
MCP Integration Redesign: Work with the Claude team to resolve timeout issues

Development

Running Tests

pytest -v tests/

Format Code

black .

License

MIT License