Crate ldp_protocol 

LDP — LLM Delegate Protocol

An identity-aware communication protocol for multi-agent LLM systems. LDP adds delegation intelligence on top of agent communication protocols like A2A and MCP: rich identity, progressive payload modes, governed sessions, structured provenance, and trust domains.

Architecture

┌──────────────────────────────────────────┐
│  Delegation Intelligence — LDP           │
│  (identity, routing, provenance, trust)  │
├──────────────────────────────────────────┤
│  Agent Communication — A2A               │
├──────────────────────────────────────────┤
│  Tool Integration — MCP                  │
└──────────────────────────────────────────┘

Quick Start

use ldp_protocol::{LdpAdapter, LdpAdapterConfig};
use ldp_protocol::protocol::{ProtocolAdapter, TaskRequest};

let adapter = LdpAdapter::new(LdpAdapterConfig::default());
let caps = adapter.discover("http://delegate.example.com").await?;

Feature Flags

• jamjet — Enable JamJet runtime integration. Adds register_ldp_jamjet() for plugging LDP into JamJet’s ProtocolRegistry.

Re-exports

pub use adapter::LdpAdapter;

pub use client::LdpClient;

pub use config::LdpAdapterConfig;

pub use plugin::create_adapter;

pub use plugin::register_ldp;

pub use protocol::ProtocolAdapter;

pub use protocol::ProtocolRegistry;

pub use protocol::RemoteCapabilities;

pub use protocol::TaskRequest;

pub use server::LdpServer;

pub use session_manager::SessionManager;

pub use signing::apply_signature;

pub use signing::sign_envelope;

pub use signing::verify_envelope;

pub use types::*;

Modules

adapter

LDP protocol adapter — implements the ProtocolAdapter trait.

client

LDP HTTP client.

config

LDP adapter configuration.

plugin

LDP plugin registration.

protocol

Standalone protocol abstractions for LDP.

server

LDP server — receives LDP messages and serves identity/capabilities.

session_manager

LDP session cache and lifecycle management.

signing

HMAC message signing and verification for LDP envelopes.

types

LDP type definitions.