Hibana – An Affine MPST Runtime for Rust

In plain words

Hibana is an Affine MPST runtime for Rust that enables multi-party session-typed communication through global choreography definitions compiled to role-local execution. Built with a no_std/no_alloc core and deterministic message routing, it targets developers building distributed systems with compile-time safety guarantees. A demo application showcases AI control using session-typed branching patterns.

written from the facts on this page · September 2026

From the sources

A no_std, allocator-free choreography-derived runtime enforcement kernel for finite multiparty Rust protocols. Published on crates.io as hibana 0.9.5.

One choreography. Compact role programs. Fail-closed progress. Hibana executes a finite multiparty protocol from one global choreography. It projects each role to a compact program and checks every send, receive, and route operation before progress commits. Its target-neutral API is unconditionally #![no_std] , needs no allocator, uses caller-provided storage, and covers role IDs 0..=255 . use hibana ::{ Endpoint , EndpointError , g ::{ self , Msg }, runtime :: program ::{ RoleProgram , project }, }; fn ping_pong () -> ( RoleProgram < 0 >, RoleProgram < 1 >) { let choreography = g::seq ( g::send ::< 0 , 1 , Msg < 1 , u32 >>(), g::send ::< 1 , 0 , Msg < 2 , u32 >>(), ); ( project (&…from hibanaworks.dev

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