Crate atmd 

ATM Daemon - Session registry and broadcast server

This crate provides the core infrastructure for the ATM daemon:

• registry - Session registry actor for tracking Claude Code sessions
• server - Unix socket server for client connections
• monitor - Process monitoring for CPU/memory tracking

Architecture

┌─────────────────────────────────────────────────────────────┐
│                    atmd daemon                         │
├─────────────────────────────────────────────────────────────┤
│                                                             │
│  ┌─────────────────┐     ┌─────────────────────────────┐   │
│  │  DaemonServer   │────▶│     RegistryActor           │   │
│  │ (Unix Socket)   │     │  (session state owner)      │   │
│  └────────┬────────┘     └──────────────┬──────────────┘   │
│           │                             │                   │
│           │ connections                 │ events            │
│           ▼                             ▼                   │
│  ┌─────────────────┐     ┌─────────────────────────────┐   │
│  │ConnectionHandler│     │   broadcast::Sender         │   │
│  │  (per client)   │     │   (event distribution)      │   │
│  └─────────────────┘     └─────────────────────────────┘   │
│                                                             │
└─────────────────────────────────────────────────────────────┘

Panic-Free Guarantees

All production code in this crate follows the panic-free policy from CLAUDE.md:

• No .unwrap(), .expect(), panic!(), unreachable!(), todo!()
• All fallible operations return Result or Option
• Channel operations handle closure gracefully

Modules

discovery

Session discovery - finds existing Claude Code sessions.

monitor

Process monitoring for the ATM daemon.

registry

Session registry using Actor pattern.

server

Unix socket server for the ATM daemon.

tmux

Tmux integration for session discovery.