Crate bote 

Bote — MCP Core Service

Bote (German: messenger) provides the shared MCP (Model Context Protocol) implementation for the AGNOS ecosystem. JSON-RPC 2.0 protocol, tool registry, schema validation, and dispatch — so individual apps don’t each reimplement the protocol.

Feature Flags

Flag	Description
http	HTTP transport via axum (POST + SSE streaming)
ws	WebSocket transport via tokio-tungstenite
unix	Unix domain socket transport
all-transports	Enables http, ws, and unix
audit	Audit logging via libro hash-linked chain
events	Event publishing via majra pub/sub
bridge	TypeScript bridge with CORS and MCP result formatting
discovery	Cross-node tool discovery via majra pub/sub
sandbox	Tool sandboxing via kavach isolation backends
full	All transports + audit + events + bridge + discovery + sandbox

None are enabled by default — enable only what you need.

Modules

• protocol — JSON-RPC 2.0 types (Request, Response, Error)
• registry — Tool registry with schema validation, versioning, and discovery
• schema — JSON Schema compilation and typed validation
• dispatch — Route tool calls to registered handlers (with dynamic registration)
• stream — Streaming primitives (progress, cancellation)
• transport — Transport layer (stdio, HTTP, WebSocket, Unix socket)
• audit — Audit logging trait and libro integration
• events — Event publishing trait and majra integration
• [bridge] — TypeScript bridge with CORS and MCP result formatting
• [discovery] — Cross-node tool discovery via majra pub/sub
• [sandbox] — Tool sandboxing via kavach isolation backends

Re-exports

pub use audit::AuditSink;

pub use audit::ToolCallEvent;

pub use dispatch::DispatchOutcome;

pub use dispatch::Dispatcher;

pub use events::EventSink;

pub use protocol::JsonRpcError;

pub use protocol::JsonRpcRequest;

pub use protocol::JsonRpcResponse;

pub use registry::ToolDef;

pub use registry::ToolRegistry;

pub use registry::ToolSchema;

pub use schema::CompiledSchema;

pub use schema::PropertyDef;

pub use schema::SchemaType;

pub use stream::CancellationToken;

pub use stream::ProgressSender;

pub use stream::ProgressUpdate;

pub use stream::StreamContext;

pub use stream::StreamingToolHandler;

Modules

audit

Audit logging — record every tool call for compliance and debugging.

dispatch

Tool call dispatcher — route JSON-RPC calls to registered handlers.

events

Event publishing — broadcast tool call and registration events.

protocol

JSON-RPC 2.0 types for MCP.

registry

Tool registry — register, discover, and validate MCP tools.

schema

JSON Schema validation — compile ToolSchema into a typed representation and validate parameters against it.

stream

Streaming primitives — progress notifications, cancellation, and streaming handler support.

transport

Transport layer — codec, stdio, and feature-gated network transports.

Enums

BoteError

Type Aliases

Result