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Julian Beaujardin
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Software

Laravel, building with AI.

AI features that survive real users, real invoices, and their own confidence

Julian Beaujardin 22 chapters 294 pages EN · ES

A book on building AI features in Laravel that survive real users, real invoices and their own confidence, on the Laravel AI SDK and Laravel MCP.

The opening pages and the first chapter are free to read here. The rest is for readers who bought the book.

Contents

Preface

3 sections
  1. 01 The Four Principles
  2. 02 What “Building with AI” Means
  3. 03 How This Book Is Structured

Part I

The Call

Chapter 1

The Boundary

3 sections
  1. 01 One Agent Class per Thing You Want
  2. 02 Fail Loudly on a Missing Credential
  3. 03 One Road In

Chapter 2 Buyers

Getting an Answer You Can Use

4 sections
  1. 01 Check Why It Stopped Before You Decode
  2. 02 Required Paths Are a Contract, So Keep Them Small
  3. 03 Constrain the Model Away From What It Cannot Know
  4. 04 When the Decode Fails Quietly

Chapter 3 Buyers

Prompts Are Code

4 sections
  1. 01 Compose, Do Not Fork
  2. 02 Write Rules a Model Can Actually Follow
  3. 03 The Prompts You Did Not Write
  4. 04 Changing a Prompt Is a Deploy

Chapter 4 Buyers

What a Token Costs You

4 sections
  1. 01 The Cap Is a Server Decision, Made Per Purpose
  2. 02 The Cap That Truncates Thinking Too
  3. 03 Key the Ceiling to the Thing That Pays
  4. 04 Work the Number Out Once, on Paper

Chapter 5 Buyers

Never Let the Browser Talk to the Model

3 sections
  1. 01 Put the Boundary Where the Facts Are
  2. 02 The Browser Sends Data, Never Instructions
  3. 03 Resolve the Paying Credential Server-Side

Chapter 6 Buyers

Slow Is the Default

4 sections
  1. 01 The Setting That Runs Your Job Twice
  2. 02 The Synchronous Path Has Clocks Too
  3. 03 Poll, Stream or Broadcast
  4. 04 Let the User Stop

Part II

The System

Chapter 7 Buyers

Tools, Giving the Model Hands

4 sections
  1. 01 A Tool Is a Class
  2. 02 Type the Input, Then Validate It Anyway
  3. 03 Build the Payload From an Allow-List
  4. 04 The Result Is Also a Prompt

Chapter 8 Buyers

The Agent Loop

3 sections
  1. 01 `stop_reason` Is Your Control Flow
  2. 02 Truncation Must Not Render Alone
  3. 03 Read the Blocks by Type

Chapter 9 Buyers

Rendering What Tools Return

2 sections
  1. 01 Status Messages Are Not Chat Messages
  2. 02 Rendering Model Text Without an Injection

Chapter 10 Buyers

Side Effects You Cannot Take Back

3 sections
  1. 01 Take the Irreversible Step Away From the Model
  2. 02 Single-Use Tokens Must Survive Your Own Failures
  3. 03 Only Commit When It Is Real

Chapter 11 Buyers

The Model Is an Untrusted Caller

4 sections
  1. 01 Four Windows, or You Have Paced Abuse Rather Than Stopped It
  2. 02 The Secret Never Comes Back to the Model
  3. 03 The Browser Is an Untrusted Caller Too
  4. 04 Delete What Should Never Be Offered

Chapter 12 Buyers

Long Content

2 sections
  1. 01 Chunk on Structure, Not on Characters
  2. 02 Fail the Whole Thing Rather Than Reassemble a Lie

Part III

Proof

Chapter 13 Buyers

Testing Something That Never Answers Twice

2 sections
  1. 01 Test the Loop by Feeding It Stop Reasons
  2. 02 Test the Attack, and Name the Test After It

Chapter 14 Buyers

Measure, Don’t Guess

4 sections
  1. 01 Run It on Purpose
  2. 02 Judging Without a Judge
  3. 03 The Other Half: Measure the Clever Version
  4. 04 Where the Measurement Lives

Chapter 15 Buyers

Observability for Things You Cannot Reproduce

2 sections
  1. 01 One Structured Line per Step, Tied to Its Turn
  2. 02 Two Axes: Did It Work, and Did It Help

Part IV

The Team

Chapter 16 Buyers

Where the AI Belongs, and Who Owns It

1 section
  1. 01 Own the Boundary, Rent the Model

Chapter 17 Buyers

Scrum When Agents Write the Code

5 sections
  1. 01 What Moved
  2. 02 Principle Two: Refinement Is Prompt Writing
  3. 03 Principle Three: Cap Everything, Including What You Produce
  4. 04 The Events, With Agents in the Room
  5. 05 Measure What Is Actually Scarce

Part V

Production

Chapter 18 Buyers

Failure Is a Feature

2 sections
  1. 01 Record Health From More Than One Place
  2. 02 Fail Fast, Then Look Again

Chapter 19 Buyers

Shipping It

2 sections
  1. 01 Roll Out Prompts and Models Like Features
  2. 02 Alert on Symptoms, Not on the Model

Afterword Buyers

Knowing the Good

1 section
  1. 01 The Part I Am Not Going to Pretend About

Buyers

Appendices

3 sections
  1. 01 Appendix A: Pre-Launch Checklist
  2. 02 Appendix B: Prompt Review Checklist
  3. 03 Appendix E: The Agent Loop in One Listing

Checkout

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