# Mock Architecture Documentation

## Purpose
This is a test fixture simulating a real repo's architecture.md file.

## Layered Architecture
The system follows a layered architecture:
- **Channels** receive inbound messages from external platforms
- **Gateway** manages sessions and routes requests
- **Agents** execute AI model interactions
- **Config** provides centralized configuration
- **Utils** provides shared infrastructure (logging, crypto, filesystem)

## Design Decisions
- Gateway and Agents have a deliberate circular dependency for session refresh workflows
- Config is loaded lazily and cached in memory
- Utils are stateless pure functions with no domain logic