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AI & LLM integration patterns

Call LLM APIs, structure prompts, parse responses, and ship AI features safely.

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AI & LLM integration patterns medium

How to Detect Prompt Injection in Python

Implements a regex-based heuristic in Python to flag common prompt injection attempts before sending input to an LLM.

prompt-injection regex llm-security
Python 
import re

def contains_prompt_injection(user_input: str) -> bool:
    # Directives to ignore previous instructions or act as system
    ignore_patterns = [
        r"\bignore\s+(all\s+)?previous\s+instructions\b",
        r"\bdisregard\s+(all\s+)?previous\s+instructions\b",
        r"\bdon'?t\s+follow\s+(any\s+)?inst…
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