llm-application-dev

Guide LLM application development with prompt engineering and JSON schema outputs.

1|Updated Oct 27, 2025
One-click install
npx skills add https://github.com/langcore-org/united-productions-web --skill llm-application-dev-langcore-org
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: llm-application-dev
Source: https://github.com/langcore-org/united-productions-web/tree/main/.claude/skills/llm-application-dev
Command: npx skills add https://github.com/langcore-org/united-productions-web --skill llm-application-dev-langcore-org

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill streamlines the development of LLM-powered applications by providing clear guidance on prompt engineering, few-shot learning, and advanced reasoning techniques, ensuring higher quality and more predictable AI responses.

Core Features & Use Cases

  • Prompt Engineering: Design effective prompts with clear role definitions, constraints, and output formats.
  • Advanced Techniques: Implement few-shot learning and Chain-of-Thought for improved accuracy and reasoning.
  • Structured Output: Generate responses in specific formats like JSON using schema definitions.
  • Use Case: When developing a new feature that requires the AI to summarize meeting transcripts into structured reports, this Skill provides the patterns and best practices to ensure the output is accurate, consistently formatted, and meets specific requirements.

Quick Start

Use the llm-application-dev skill to help me design a prompt for summarizing customer feedback into a markdown report.

Frequently Asked Questions about llm-application-dev

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I design effective prompts for LLM applications?

Design effective prompts for LLM applications by establishing clear role definitions, constraints, and output formats. This approach ensures higher quality and more predictable AI responses when developing features.

What is the best way to generate structured JSON output from an LLM?

Generate structured JSON output from an LLM by using schema definitions to constrain the response format. This technique ensures accurate and consistently formatted results for tasks like summarizing transcripts into reports.

How does few-shot learning improve LLM response accuracy?

Few-shot learning improves LLM response accuracy by providing specific examples within the prompt to guide the model's behavior. This advanced technique helps achieve more predictable and higher quality AI outputs.

When should I use Chain of Thought reasoning in prompt engineering?

Use Chain of Thought reasoning in prompt engineering when your LLM application requires complex logical deduction. This technique improves accuracy by guiding the model through intermediate reasoning steps before generating the final output.

Why does my LLM application return unstable or low quality responses?

Unstable or low quality LLM responses often stem from poorly defined prompt constraints or lack of structured output schemas. Address these common troubleshooting scenarios by applying few-shot learning and clear role definitions.