
Guardrails, Not Walls
Building Useful AI Safety Constraints Without Blocking the Product
A book by Alpesh Nakrani
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- Pages
- 138
- Chapters
- 15
- Format
- PDF · 30.1 MB
What's in the book
Most guardrails are built to pass an audit, not to prevent harm. This deep dive distinguishes the two: where input and output filtering earns its latency, where it is theater, and how to constrain a probabilistic system without making it useless.
Safety theater blocks the demo and misses the risk. Building constraints that protect users without strangling the product.
Table of contents
PDF page- FMFront Matter: Guardrails, Not Walls—
- INTIntroduction: Two Failures in One Afternoon16
- 01The Two-Sided Failure22
- 02Five Words That Get Confused29
- 03The System Boundary and the ROAD Framework36
- 04From Prose to Policy43
- 05Risk Tiering and Intent50
- 06The Gatehouse57
- 07The Retrieval Firewall64
- 08Output Controls71
- 09Refusal Is the Last Resort78
- 10Tool Guardrails84
- 11The Side-Effect Ladder91
- 12Testing Guardrails Like a Product98
- 13Monitoring and the Bypass Incident105
- 14Eight Playbooks113
- 15The Guardrail System121
- AAppendix A: Back Matter127
The full chapters, illustrations, and reference material are included in the downloadable PDF.

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