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NOMOS is a sophisticated multi-step agent framework that combines the intelligence of Large Language Models with the reliability and predictability of state machines. This document provides comprehensive architecture diagrams that illustrate the system’s design and component interactions.
Do not get scared by the complexity of the architecture diagrams. They are designed to provide a clear understanding of how NOMOS operates at a low level, and each component plays a crucial role in the overall functionality of the framework.

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System Overview

The following diagram shows the high-level architecture of NOMOS, including its core components and their relationships:

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Agent Lifecycle and Session Management

This diagram illustrates how agents are created, sessions are managed, and how the system handles user interactions:

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Flow Management Architecture

This diagram shows how flows organize steps and manage context transitions:

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Decision Making and Tool Execution

This diagram illustrates how the LLM makes decisions and executes tools within the step-based architecture:

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API and Client Architecture

This diagram shows the API layer and how different clients interact with the system:

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Memory and Context Management

This diagram illustrates how NOMOS manages different types of memory and context across sessions and flows:

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Tool System Architecture

This diagram shows how NOMOS integrates and manages different types of tools:

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Development and Deployment Architecture

This final diagram shows the development workflow and deployment options for NOMOS agents:

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Summary

The NOMOS architecture is designed around several key principles:
  1. Modular Design: Each component has a specific responsibility and can be tested independently
  2. State Machine Reliability: Agent behavior is predictable and auditable through step-based transitions
  3. Flow Organization: Related steps are grouped into flows with shared context and components
  4. Memory Hierarchy: Different levels of memory management for sessions, flows, and context transfer
  5. Tool Integration: Unified interface for custom, external, and package-based tools
  6. API-First Design: RESTful and WebSocket APIs enable diverse client integrations
  7. Production Ready: Built-in persistence, monitoring, and scaling capabilities
This architecture enables NOMOS to bridge the gap between rapid prototyping and production-ready AI agent deployment while maintaining the testability and reliability expected in enterprise software systems.
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