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CONTRIBUTING.md

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+# Contributing to Model Context Protocol Inspector
+
+Thanks for your interest in contributing! This guide explains how to get involved.
+
+## Getting Started
+
+1. Fork the repository and clone it locally
+2. Install dependencies with `npm install`
+3. Run `npm run dev` to start both client and server in development mode
+4. Use the web UI at http://localhost:5173 to interact with the inspector
+
+## Development Process & Pull Requests
+
+1. Create a new branch for your changes
+2. Make your changes following existing code style and conventions
+3. Test changes locally
+4. Update documentation as needed
+5. Use clear commit messages explaining your changes
+6. Verify all changes work as expected
+7. Submit a pull request
+8. PRs will be reviewed by maintainers
+
+## Code of Conduct
+
+This project follows our [Code of Conduct](CODE_OF_CONDUCT.md). Please read it before contributing.
+
+## Security
+
+If you find a security vulnerability, please refer to our [Security Policy](SECURITY.md) for reporting instructions.
+
+## Questions?
+
+Feel free to [open an issue](https://github.com/modelcontextprotocol/mcp-inspector/issues) for questions or create a discussion for general topics.
+
+## License
+
+By contributing, you agree that your contributions will be licensed under the MIT license.