What is Prompt Chaining?
Prompt chaining is the technique of connecting multiple LLM calls in sequence, where each call's output feeds into the next call's input — enabling complex multi-step reasoning and task completion.
WHY IT MATTERS
Prompt chaining breaks complex tasks into manageable steps. Instead of asking one massive prompt to do everything, you create a pipeline: Step 1 analyzes the input, Step 2 plans the approach, Step 3 generates the output, Step 4 validates quality.
Each step can use different prompts, different models, and different temperatures optimized for its specific task. Analysis steps might use a reasoning model; generation steps might use a creative model.
For financial agents, prompt chaining creates structured decision-making: analyze market data → evaluate options → generate trade plan → validate against policies → execute. Each step is independently optimizable and auditable.