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README.md

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+# AISA — Agentic AI Systems Architecture
+
+---
+
+## Overview
+
+AISA (Agentic AI Systems Architecture) is a system-level reference architecture
+for the design, deployment, evaluation, and governance of agentic AI systems.
+
+It frames agentic AI as an end-to-end system problem, addressing the
+architectural challenges introduced by autonomous, tool-using,
+and long-horizon AI behavior.
+
+---
+
+## Motivation
+
+As large language models evolve into persistent and goal-directed agents,
+key challenges increasingly arise at the system level, including:
+
+- Fragmented agent architectures
+- Brittle orchestration and tool usage
+- Limited observability and evaluation
+- Unclear governance and accountability
+
+AISA introduces a unified architectural model that integrates reasoning,
+infrastructure, evaluation, deployment, and governance.
+
+---
+
+## Architectural Model
+
+AISA decomposes agentic AI systems into seven high-level layers:
+
+1. **LLM Foundation** — language understanding and reasoning  
+2. **Tool & Environment** — controlled external actions  
+3. **Cognitive Agent** — planning, goals, and memory  
+4. **Agentic Infrastructure** — orchestration and coordination  
+5. **Evaluation & Feedback** — continuous behavioral assurance  
+6. **Development & Deployment** — lifecycle management  
+7. **Governance, Ethics & Policy** — system-wide constraints  
+
+This separation of concerns enables predictable behavior,
+continuous evaluation, and enforceable governance.
+
+---
+
+## System Perspective
+
+AISA treats agentic AI systems as composed, multi-layered systems
+whose behavior emerges from interactions across reasoning,
+execution, infrastructure, and policy layers.
+
+This perspective supports system-level analysis and comparison
+across different agentic designs.
+
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+
+## Contributions
+
+This work:
+
+- Proposes a unified layered reference architecture for agentic AI systems  
+- Clarifies responsibilities and boundaries across system components  
+- Elevates evaluation, operations, and governance to first-class concerns  
+- Provides a shared vocabulary for research and practice  
+
 ---
 
+## Intended Use
+
+AISA is intended for:
+
+- Research on agentic and autonomous AI systems  
+- Design of production-grade agent architectures  
+- Evaluation and comparison of agentic behaviors  
+- Governance and risk analysis of deployed AI systems  
+
+The framework applies to both single-agent and multi-agent systems.
+
+
 <h1 align="center">AISA — Agentic AI Systems Architecture</h1>
 
 <p align="center"><em>Coming soon</em></p>