Rutis Review: A Five-Pillar Agent Kernel in Idiomatic Rust, Not a Full 'rust agent framework'
Rutis is a Rust reimplementation of the Cordis five-pillar plugin kernel — plugin, fiber, typed service registry, four-semantics event bus, and dependency-driven reload — with a deliberately minimal coding agent layered on top. If you arrived searching for a “rust agent framework,” the honest answer is that rutis is an agent kernel: the lifecycle machinery is the product, the agent is a sample. That distinction decides everything about whether you should try it. Rutis does not compete with Rig or AutoAgents on agent features — no multi-agent orchestration, no tool sandbox, no guardrails, exactly two built-in tools. What it offers instead is loadable, unloadable capability plugins with automatic dependency-driven eviction, backed by an unusually rigorous parity audit against upstream Cordis. The verdict below is trial for plugin hosts, hold for agent builders. ...