Lesson 1352 of 1596
AI and tool result validation
Validate what tools return before letting the agent reason on it — bad data poisons the next step.
Creators · Agentic AI · ~7 min read
The premise
Tool outputs are an attack and bug surface. Validate shape and sanitize content before feeding back into the model.
What AI does well here
- Propose schemas for tool returns.
- Suggest length and content limits.
- Identify fields to sanitize for prompt injection.
What AI cannot do
- Catch every prompt-injection variant.
- Trust unvalidated third-party API output.
- Replace a real security review.
Key terms in this lesson
Practice this safely
Use a small project example from your own work. The useful move is to compare the AI's draft against your goal, sources, and constraints before you trust it.
- 1Ask AI to explain validation in plain language, then underline anything that sounds uncertain or too broad.
- 2Give it one detail from "AI and tool result validation" and ask for two possible next steps plus one reason each step might be wrong.
- 3Check schema against a trusted source, teacher, adult, expert, or original document before you use it.
End-of-lesson quiz
Check what stuck
10 questions · Score saves to your progress.
Tutor
Curious about “AI and tool result validation”?
Ask anything about this lesson. I’ll answer using just what you’re reading — short, friendly, grounded.
Progress saved locally in this browser. Sign in to sync across devices.
Related lessons
Keep going
Creators · 23 min
Memory Context Fences: Recall Without Injection
Build a memory layer that recalls useful facts while preventing old memories from becoming new user commands. Build the small version Draw or write a fenced prompt layout that includes system rules, user input, retrieved memory, and tool results in separate sections.
Creators · 11 min
Sanitizing Untrusted Input Before Agents Touch It
Strip and bound user-provided text and files before they reach an agent's planning loop.
Creators · 11 min
Enforcing Output Schemas on Agent Final Answers
Force the agent's final response into a validated JSON schema so downstream code can rely on it.
