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.

replay

Replay detection for LDP messages.

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.