libertaria-stack/membrane-agent

Membrane Agent

L2 Trust-Based Policy Enforcement Daemon for Libertaria

The Membrane Agent is a Rust-based daemon that acts as the immune system for a Libertaria node. It sits between the L0 Transport Layer (UTCP) and the Application Layer, enforcing policies based on the L1 QVL Trust Graph.

🏗️ Architecture

• L0 Hooks: Listens for packet events (receipt, connection).
• QVL FFI: Queries the Zig-based QVL via C ABI for trust scores and betrayal detection.
• Policy Enforcer: Decides to Accept, Deprioritize, or Drop packets based on sender trust.
• Anomaly Alerts: Emits P0/P1 alerts when Betrayal (negative cycles) is detected.

🚀 Running

Prerequisites

• Zig 0.15.2+ (to build liblibertaria_sdk)
• Rust 1.80+

Build

First, build the Zig SDK static library:

cd libertaria-sdk
zig build

Then build the Rust daemon:

cd membrane-agent
cargo build --release

Run

cargo run --release

🧪 Testing

# Run unit tests + FFI integration tests
cargo test

🔌 API Integration (Draft)

The agent exposes a control socket (TODO) and consumes L0 events via IPC (TODO). Currently operates in STUB MODE for L0 integration.