building-with-llms

Generate an LLM Build Pack covering prompt contracts, evaluation, and launch checklists.

51|8|Updated Jan 22, 2026
One-click install
npx skills add https://github.com/liqiongyu/lenny_skills_plus --skill building-with-llms
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: building-with-llms
Source: https://github.com/liqiongyu/lenny_skills_plus/tree/main/skills/building-with-llms
Command: npx skills add https://github.com/liqiongyu/lenny_skills_plus --skill building-with-llms

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes scripts (resource) and references (resource) components.

What problem does it solve?

This Skill helps you systematically plan, build, and launch LLM-powered features by providing a structured framework for prompt engineering, data evaluation, and production readiness.

Core Features & Use Cases

  • LLM Build Pack Generation: Creates a comprehensive plan covering feature briefs, system design, prompt contracts, evaluation strategies, and launch checklists.
  • Production Readiness: Ensures LLM applications are safe, reliable, and cost-effective for deployment.
  • Use Case: You have an idea for an AI copilot for your CRM. Use this Skill to generate a detailed plan including the system prompt, tool definitions, an evaluation set to test its accuracy, and a monitoring strategy for when it goes live.

Quick Start

Use the building-with-llms skill to create an LLM Build Pack for a new AI feature.

Frequently Asked Questions about building-with-llms

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

FAQPage Schema
How do I plan prompt engineering and evaluation for LLM applications?

Plan prompt engineering and evaluation by generating a structured LLM Build Pack that covers feature briefs, system design, prompt contracts, and evaluation strategies. This framework ensures your LLM application is tested for accuracy before launch.

What is an LLM Build Pack and when do I need it for production readiness?

An LLM Build Pack is a comprehensive plan for developing and shipping LLM-powered features. You need it when transitioning an AI copilot or RAG system from prototype to production to ensure safety, reliability, and cost-effectiveness.

How to design tool contracts and system prompts for tool-using agents?

Design tool contracts and system prompts by generating a detailed plan that defines tool schemas, establishes safety guardrails, and outlines monitoring strategies. This structured approach ensures tool-using agents operate reliably within defined architectural boundaries.

Can I use this approach to build RAG and GPT applications for my CRM?

Yes, you can use this framework to build GPT applications and RAG features for a CRM. It generates a specific plan including system prompts, tool definitions, an evaluation set to test accuracy, and a live monitoring strategy.

What's the best way to ensure LLM safety and reliability before launch?

Ensure LLM safety and reliability by using a launch checklist that validates prompt contracts, data evaluation plans, and safety considerations. This production readiness step verifies that features are cost-effective and safe for deployment.

Does LLMOps evaluation planning cover monitoring strategies for live AI features?

Yes, LLMOps evaluation planning covers monitoring strategies for live AI features by defining an evaluation set and launch checklists. This ensures ongoing accuracy, safety, and cost management after the LLM application goes live.