Rust MCP Server

What it does

This server provides a comprehensive bridge between AI assistants and rust-analyzer, enabling LLMs to interact with Rust projects with full semantic awareness. Instead of relying on fragile string manipulation, it uses the Language Server Protocol (LSP) to perform precise code navigation, type analysis, and refactoring.

Tools

• find_definition: Navigate directly to symbol definitions.
• find_references: Locate all usages of a specific symbol.
• get_diagnostics: Retrieve compiler errors and warnings with suggested fixes.
• workspace_symbols: Search for symbols across the entire project.
• generate_struct: Create structs with appropriate derives and constructors.
• generate_enum: Implement enums with defined variants.
• rename_symbol: Perform scope-aware symbol renaming.
• extract_function: Refactor code blocks into standalone functions.
• apply_clippy_suggestions: Automatically apply rust-clippy fixes.
• analyze_manifest: Parse and analyze Cargo.toml dependency trees.

Installation

Add the following to your claude_desktop_config.json:

{
  "mcpServers": {
    "rust-analyzer": {
      "command": "/path/to/rust-mcp/target/release/rustmcp",
      "args": [],
      "env": {
        "RUST_ANALYZER_PATH": "~/.cargo/bin/rust-analyzer"
      }
    }
  }
}

Supported hosts

• Claude Desktop
• Roo