Crate arcp_core 

Shared protocol primitives for the Agent Runtime Control Protocol (ARCP).

This crate ships the wire-format types and abstractions both client and runtime sides depend on:

• envelope — the canonical envelope (RFC §6.1).
• messages — payload structs and MessageType (RFC §6.2).
• error — canonical error taxonomy.
• ids — strongly-typed opaque identifiers (JobId, SessionId, …).
• extensions — extension namespace registry and classification.
• transport — Transport trait + in-memory transport. WebSocket and stdio transports gated behind features.
• auth — Authenticator trait. Concrete bearer / signed_jwt / none validators live in arcp-runtime.

Most users should depend on the umbrella arcp crate instead of this one directly. Pull in arcp-core only when building an alternative client or runtime that needs the protocol primitives without the reference implementations.

Re-exports

pub use envelope::Envelope;

pub use envelope::Priority;

pub use envelope::RawEnvelope;

pub use error::ARCPError;

pub use error::ErrorCode;

pub use extensions::ExtensionRegistry;

pub use extensions::TypeClassification;

pub use messages::Capabilities;

pub use messages::MessageType;

Modules

auth

Authentication scheme adapters (RFC §8.2).

envelope

Canonical message envelope (RFC §6.1).

error

Canonical error model (RFC §18).

extensions

Extension namespace registry and unknown-message classification (RFC §21).

ids

Newtype wrappers for the protocol’s identifier fields (RFC §6.1.1).

messages

Wire-level message payload types (RFC §6.2).

transport

Transport abstraction (RFC §22).

Constants

IMPL_KIND

Implementation kind reported in runtime.kind / client.kind blocks (RFC §8.2, §8.3).

IMPL_VERSION

Implementation version of this crate, derived from Cargo.toml. Sibling crates in this workspace move in lockstep, so this constant also reflects the runtime / client / umbrella version.

PROTOCOL_VERSION

Protocol version implemented by this crate, as carried in the arcp field of every envelope (RFC §6.1).