AI Agent Dependency Injection 2026

Today using GPT-4o, tomorrow switching to Claude—need to change 50 places in the code? With dependency injection, you only need to change one line of configuration.

💡 What You Will Learn

Today using GPT-4o, tomorrow switching to Claude—need to change 50 places in the code? With dependency injection, you only need to change one line of configuration.

# ❌ 
class Agent:
    def __init__(self):
        self.llm = OpenAI(model="gpt-4o")

# ✅ 
class Agent:
    def __init__(self, llm):
        self.llm = llm  # 

agent = Agent(llm=OpenAI(model="gpt-4o"))  # Claude()DeepSeek()

# config.yaml
llm:
  provider: deepseek  # 
  model: deepseek-chat

Summary