Show HN: Rustchain – Rust toolchain AI agent framework universal transpilation (rustchain.dev)

Rustchain is a new production-ready AI agent framework written in Rust that aims to combine sub-second mission execution (advertised ~220ms average) with enterprise-grade safety, observability, and compliance. It uses Rust’s zero-cost abstractions and memory-safety guarantees to minimize runtime overhead, and presents a mission-based architecture for orchestrating complex AI workflows with predictable, low-latency performance—targeting use cases where throughput, reliability, and auditability matter. Key technical highlights include a Mission Engine that models workflows as Directed Acyclic Graphs (DAGs) with built-in dependency resolution, pre-execution validation, error handling and rollback; blockchain-inspired immutable logging where every action is signed and chained for tamper-evident audits; and a unified provider layer supporting OpenAI, Anthropic, local/custom models for easy switching or multi-provider redundancy. It also bundles RAG capabilities (vector search, intelligent chunking, semantic retrieval), isolated execution via Docker sandboxes with resource and network limits, and a complete REST + WebSocket API (OpenAPI, SDKs, webhooks) plus CLI tooling (cargo install rustchain). For teams needing fast, auditable, and provider-agnostic agent deployments—especially in regulated environments—Rustchain blends high performance with operational controls and observability.