Guardrails for LLM Apps in Python

📰 Dev.to · Puneet Gupta

Learn to defend LLM apps in Python with guardrails against prompt-injection attacks and improper data handling

intermediate Published 5 Jul 2026
Action Steps
  1. Implement direct prompt-injection defense using input validation
  2. Configure indirect prompt-injection defense using schema-validated output
  3. Apply PII redaction to protect sensitive user data
  4. Test LLM app guardrails with mock attacks and edge cases
  5. Compare the effectiveness of different guardrail implementations
Who Needs to Know This

Developers building LLM applications in Python can benefit from this knowledge to ensure the security and reliability of their apps, while data scientists and product managers can understand the importance of trust boundaries in LLM apps

Key Insight

💡 Proper guardrails are crucial to defend the trust boundary in LLM apps and prevent potential security breaches

Share This
🚧 Guardrails for LLM apps in Python: defend against prompt-injection attacks and ensure data security 🚧

Key Takeaways

Learn to defend LLM apps in Python with guardrails against prompt-injection attacks and improper data handling

Full Article

Defending the trust boundary in LLM apps: direct and indirect prompt-injection defense, input validation, schema-validated output, and PII redaction — with the anti-pattern named beside each safe one.
Read full article → ← Back to Reads

Related Videos

5 Levels of AI Agents - From Simple LLM Calls to Multi-Agent Systems
5 Levels of AI Agents - From Simple LLM Calls to Multi-Agent Systems
Dave Ebbelaar (LLM Eng)
RAG vs Fine-Tuning: Which One Should You REALLY Use? | Tamil | Karthik's Show
RAG vs Fine-Tuning: Which One Should You REALLY Use? | Tamil | Karthik's Show
Karthik's Show
How to Fine Tune a LLM Model for Beginners | LLM project | Tamil | Part 2 | Karthik's Show
How to Fine Tune a LLM Model for Beginners | LLM project | Tamil | Part 2 | Karthik's Show
Karthik's Show
Deep Seek Demo in Tamil | How to Run Deep Seek R1 in Local Machine Using Ollama? | Karthik's Show
Deep Seek Demo in Tamil | How to Run Deep Seek R1 in Local Machine Using Ollama? | Karthik's Show
Karthik's Show
Deep Seek explained in Tamil | Is Deep Seek Safe? | What is new in Deep Seek? | Karthik's Show
Deep Seek explained in Tamil | Is Deep Seek Safe? | What is new in Deep Seek? | Karthik's Show
Karthik's Show
What is RAG in LLM? | Retrieval-Augmented Generation Explained in Tamil | Karthik's Show
What is RAG in LLM? | Retrieval-Augmented Generation Explained in Tamil | Karthik's Show
Karthik's Show