Learning/AI Agents — Complete Guide/Lesson 20
Chapter 7·Lesson 2 of 3·10 min

Agent security

Prompt injection

Understand how untrusted content can influence model behavior.

Lesson overview

Prompt injection

Treat documents, webpages, emails, and tool results as untrusted data. An instruction inside retrieved content should not automatically become an instruction for the agent.

Reduce blast radius with capability restrictions, authorization, validation, and approval.

Learning path

Theory → Example → Code → Practice → Quiz → Challenge → Completion

0/6 done

Step 1

Theory

Prompt injection

Treat documents, webpages, emails, and tool results as untrusted data. An instruction inside retrieved content should not automatically become an instruction for the agent.

Reduce blast radius with capability restrictions, authorization, validation, and approval.

Step 2

Example

Example

Apply Prompt injection to a realistic production scenario and trace the decision step by step.

Step 3

Code

Code

Add implementation notes or a runnable example for this concept.

Step 4

Practice

Practice

Write down the inputs, expected output, constraints, and one failure case for Prompt injection.

Step 5

Quiz

Quiz coming soon.

Step 6

Challenge

Challenge

Design a production-ready solution for Prompt injection and explain one important trade-off.

Complete every stage

Work through every step in order, then the lesson will be marked complete.

Each chapter and subtopic has its own public URL under /ai-agent.