Artificial intelligence, LLMs, coding agents, and Model Context Protocol content
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To Async or Not to Async: Building a Rust MCP Server for rust-analyzer
When I/O is involved, Rustaceans often instinctively reach for Tokio. While Tokio is a fantastic tool for the right use cases, it should not be used indiscriminately for every I/O based use case. This article explores why Tokio was deliberately omitted in r3bl-rust-analyzer-mcp-server in favor of a simple, synchronous 3-thread pipeline over stdio. It is a deep dive into architectural trade-offs, async-by-default dogma, and fit-for-purpose architecture.
