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The UX Foundations of Agentic AI Systems

The Invisible Intelligence: Why AI Products Succeed or Fail at the User Interface

AI doesn’t fail because it isn’t smart. It fails because it isn’t usable.

This book defines the foundations of designing AI agents people trust, understand, and rely on.

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About

About

About the Book

AI agents are powerful. But power without experience is useless.

We’ve spent years improving models - scaling parameters, optimizing tokens, benchmarking reasoning. Yet most AI products still fail for a simpler reason: poor interface design.

This book explores the missing layer between intelligence and usability.

It introduces the foundations of Agent Experience (AX): the discipline of designing AI agents that people can trust, understand, and actually use.

From prompt construction to system transparency, from cognitive psychology to frontend architecture, this book bridges AI engineering and human-centered design.

You’ll learn how to:

  • Design interfaces that make AI capabilities clear
  • Build trust through transparency and control
  • Reduce cognitive overload in conversational systems
  • Create feedback loops that improve both UX and model behavior
  • Architect frontend systems for agentic workflows
  • Measure AI experience beyond traditional UX metrics

If you’re building AI products: as an engineer, designer, or founder, this book will change how you think about intelligence.

In AI products, the interface is the intelligence users experience.

Author

About the Author

Prateek Singh

Prateek Singh is an Infrastructure Developer, an avid PowerShell blogger, and a community contributor. In 2017 and 2018, FeedSpot and SQLHack recognized his blog RidiCurious.com as among the “Top 50 PowerShell blogs in the world.” Find his open-sourced at GitHub, and reach out to him on Twitter at @singhprateik.

Prateek has written more than 250 articles on his blog and several other websites such as 4SysOps.com, IPSwitch.com, and TechTarget.com and also runs a YouTube channel. He is a published author of 3 books and contributing author of 2 Book and currently writing the 6th one, following is the complete list:

Contents

Table of Contents

About the Book

  1. Why this book exists
  2. What this book defines
  3. Who this book is for
  4. What you will gain
  5. What this book does not do
  6. Book updates and email notifications
  7. How to provide Feedback

Prerequisites

  1. Required mindset
  2. Required product access
  3. Required observability baseline
  4. Required team contract
  5. Recommended technical fluency
  6. Preparation checklist before Chapter 1

How to Use This Book

  1. Two reading modes
  2. Chapter architecture
  3. Suggested paths by mission
  4. How to apply each chapter in production
  5. Team review cadence
  6. Expected outputs from a successful read

The AI UX Paradigm Shift

  1. Introduction
  2. The UX Accountability Gap
  3. The Three-Layer Architecture
  4. 1. Cognitive Layer
  5. 2. Agent Layer
  6. 3. Interface Layer
  7. Why This Model Matters
  8. A. Failure Story
  9. B. Architectural Diagnosis
  10. What failed first
  11. What contract was violated
  12. What expectation was broken
  13. C. Principles and Laws
  14. Law 1: Visible Cognition
  15. Law 2: Deterministic Commitments
  16. D. Implementation Patterns (Contracts, Not Labels)
  17. Wayfinders: Stabilize Intent
  18. Inputs: Encode Commitment
  19. Tuners: Bound Uncertainty
  20. Governors: Bound Autonomy
  21. Trust Builders: Make Verification Easy
  22. Identifiers: Set Role and Authority
  23. E. Observability and Metrics
  24. Agentic UX Observability Model
  25. AI Interaction Success Rate
  26. Correction Friction Index
  27. Autonomy Override Rate
  28. Clarification Recursion Depth
  29. Trust Accrual Curve
  30. Session Confidence Decay
  31. Operational rule
  32. F. Anti-Patterns
  33. G. Key Takeaways
  34. Summary
  35. Reading Recommendations

Back Matter

  1. Appendix A: Layered Diagnostic Worksheet
  2. Cognitive layer checks (interpretation and uncertainty)
  3. Agent layer checks (orchestration and execution)
  4. Interface layer checks (contracts and control)
  5. Appendix B: Agentic UX Observability Model
  6. 1) AI Interaction Success Rate
  7. 2) Correction Friction Index
  8. 3) Autonomy Override Rate
  9. 4) Clarification Recursion Depth
  10. 5) Trust Accrual Curve
  11. 6) Session Confidence Decay
  12. Appendix C: Release Readiness Checklist
  13. Appendix D: Architecture Review Prompts
  14. Appendix E: Reference Links

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