Symposium Rust Analyzer

An ACP (Agent Communication Protocol) proxy that wraps an MCP server to provide rust-analyzer LSP integration.

Part of the Symposium project.

Overview

This project creates an ACP proxy using symposium-sacp that connects to rust-analyzer LSP and exposes its functionality through MCP tools. It bridges the gap between ACP-based agents and rust-analyzer's Language Server Protocol.

Architecture

ACP Agent <-> ACP Proxy <-> MCP Server <-> LSP Client <-> rust-analyzer LSP

ACP Proxy: The main proxy component that implements the ACP protocol
MCP Server: Exposes rust-analyzer functionality as MCP tools
LSP Client: Minimal LSP client implementation using lsp-types
rust-analyzer: The actual Rust language server

Available Tools

The proxy exposes the following rust-analyzer tools:

rust_analyzer_hover - Get hover information for symbols
rust_analyzer_definition - Go to definition
rust_analyzer_references - Find all references
rust_analyzer_completion - Get code completions
rust_analyzer_symbols - Get document symbols
rust_analyzer_format - Format documents
rust_analyzer_code_actions - Get available code actions
rust_analyzer_set_workspace - Set workspace root
rust_analyzer_diagnostics - Get file diagnostics
rust_analyzer_failed_obligations - Get failed trait obligations (rust-analyzer specific)
rust_analyzer_failed_obligations_goal - Explore nested goals (rust-analyzer specific)

Requirements

rust-analyzer must be installed and available in PATH

Implementation Notes