Why agent optimization is different from prompt engineering
Prompt engineering focuses on getting a model to produce the right answer. Agent optimization focuses on getting an agent to produce the right answer consistently, thousands of times, at a predictable cost. These are different problems that require different approaches. The dominant cost driver in an agentic workflow isn't the length of the system prompt. It's the number of LLM calls the agent makes to complete its work. Cost scales with llm_calls × input_tokens_per_call, and input tokens per ca