Cursor Rust Tools
by terhechte
Cursor Rust Tools is a Model Context Protocol (MCP) server that enhances the LLM in Cursor by providing access to Rust Analyzer, Crate Docs, and Cargo Commands. It includes a UI for configuration and allows the LLM to access up-to-date Rust type information and dependency details.
Last updated: N/A
What is Cursor Rust Tools?
Cursor Rust Tools is a server that provides Rust-specific information to the Cursor IDE's LLM through the Model Context Protocol (MCP). It allows the LLM to access Rust Analyzer data, crate documentation, and Cargo command outputs, improving its understanding of Rust code.
How to use Cursor Rust Tools?
- Install the tool using
cargo install --git https://github.com/terhechte/cursor-rust-tools. 2. Run the tool with or without the UI (cursor-rust-toolsorcursor-rust-tools --no-ui). 3. Configure projects either through the UI or by manually editing~/.cursor-rust-tools. 4. Add aproject-dir/.cursor/mcp.jsonfile to your project (the UI provides a button for this). 5. Enable the MCP server in Cursor when prompted. 6. Select 'Agent Mode' in the Chat and ask it to use the available tools (e.g.,cargo_check).
Key features of Cursor Rust Tools
Access to Rust Analyzer LSP functionality (hover information, references, implementation)
Retrieval of crate documentation and symbol information
Execution of
cargo testandcargo checkcommandsUI for configuration and project management
Integration with Cursor IDE via MCP
Ability to ignore specific crates for documentation indexing
Use cases of Cursor Rust Tools
Improving the accuracy of LLM-generated code suggestions for Rust projects
Enabling the LLM to understand and utilize up-to-date crate documentation
Debugging Rust code with the help of LLM-powered analysis tools
Automating code refactoring tasks using LLM-driven code understanding
Generating documentation and code examples with the aid of LLM
FAQ from Cursor Rust Tools
What is MCP?
What is MCP?
MCP stands for Model Context Protocol. It's a protocol that allows LLMs to access external tools and information.
How do I configure projects?
How do I configure projects?
You can configure projects either through the UI or by manually editing the ~/.cursor-rust-tools file.
Why is up-to-date information important?
Why is up-to-date information important?
The LLM is only as good as the data it was trained on. Up-to-date information helps the LLM to generate more accurate and relevant code.
What if I don't want to index all crates?
What if I don't want to index all crates?
You can use the ignore_crates setting in the project configuration to exclude specific crates from documentation indexing.
How do I test if it is working?
How do I test if it is working?
Make sure you have Agent Mode selected in the current Chat. And then you can ask it to utilize one of the new tools, for example the cargo_check tool.