chain-llm-pattern
Installation
SKILL.md
Chain LLM Pattern for n8n
Multi-step LLM chains outperform single-shot prompts on any task that combines extraction + reasoning. This skill encodes the production pattern.
When to use a chain vs a single prompt
| Single prompt works | Chain is better |
|---|---|
| "Summarize this email" | "Extract entities, then categorize by urgency, then decide routing" |
| "Translate this to English" | "Detect language, translate, then extract structured fields" |
| "Is this spam? yes/no" | "Score spam probability from email, phone, IP, content separately, then combine" |
Rule of thumb: if the task has ≥2 distinct reasoning steps OR the final decision depends on intermediate structured data, use a chain.
The pattern (3-stage default)
Input → [Extract] → [Analyze/Classify] → [Score/Decide] → Output