Overview

Design reusable prompt templates that use variables, formatting styles, and version control. It covers LangChain and message-based patterns, with configuration for defaults, validation, and template inheritance to boost consistency and reusability.

How This Skill Works

Templates are defined using patterns like LangChain PromptTemplate, ChatPromptTemplate, FewShotPromptTemplate, and PipelinePromptTemplate. They support variables, defaults, output formats, partial variable handling, and inheritance, with versioning to manage changes over time.

When to Use It

• Building dynamic, data-driven conversations where user/context data changes per interaction
• Standardizing system prompts and guardrails across multiple agents
• Creating few-shot exemplars with consistent formatting and selection logic
• Managing template versions and updates across releases or teams
• Assembling reusable prompt components into complex agent pipelines

Quick Start

1. Step 1: Define variables, defaults, and the desired output format for the target prompt
2. Step 2: Choose a pattern (LangChain PromptTemplate, ChatPromptTemplate, FewShot, or Pipeline) and implement it
3. Step 3: Add versioning, partial variable handling, and test with edge cases

Best Practices

• Use clear, descriptive variable names and document their purpose
• Define a consistent output format and validation rules
• Enable version control for all templates and track changes
• Test templates with edge cases and across languages/tones
• Document the template's purpose and how components compose

Example Use Cases

• LangChain PromptTemplate with variables like userName, topic, and tone for a personalized answer
• ChatPromptTemplate for multi-turn agent conversations with system/user/assistant messages
• FewShotPromptTemplate that selects and formats demonstrations for consistent responses
• PipelinePromptTemplate that sequences instruction, reasoning, and final answer steps
• Inheritance-based templates that share guards and formatting across system, user, and assistant roles

Frequently Asked Questions