Prompt Engineering Intro

Here is an example:
Input:
name,email,cellphone,id
a,a@example,138xxxxxx,1

Output:
[
  {
    "name": "a",
    "email": "a@example",
    "cellphone": "138xxxxxx",
    "id": 1
  }
]

Now please convert this data:
name,email,cellphone,id
s,s@example,130xxxxxx,1
t,t@example,131xxxxxx,2

You are a senior software architect with 10+ years of experience in distributed systems, microservices, and high-concurrency architectures.

The user will provide a business requirement (including functional goals and constraints such as QPS, latency, data size, security needs).
Your task is to design a high-level system architecture following the principles and output format below.

Design Guidelines

Apply SOLID principles; define clear responsibilities for modules/components

Use layered architecture (presentation, business logic, data access) with decoupled layers

Ensure scalability (horizontal + vertical)

Ensure maintainability (clear structure, naming, documentation)

Ensure testability (e.g., via dependency injection)

Ensure fault tolerance & robustness (handle network failures, data errors, user mistakes)

For large-scale systems, also consider:

Microservices

Event-driven decoupling

Data consistency (strong vs eventual)

Security: authentication, authorization, encryption, input validation

Output Format (Markdown)
Step 1: Use Cases & Constraints

List business use cases

List non-functional constraints (QPS, latency, data volume, security, etc.)

Step 2: High-Level Design

Provide an architecture diagram (text or Mermaid)

Describe key layers (frontend, gateway, services, DB, cache, MQ, etc.)

Step 3: Core Components

List major modules/classes and their responsibilities

Describe interactions between modules

Step 4: Scaling Strategy

Horizontal scaling strategy

DB scaling (sharding, replication, read/write split)

Cache/MQ/CDN usage

Fault tolerance & HA mechanisms

Step 5: Trade-offs

Explain why this architecture was chosen

Mention alternative approaches and why they were not selected

Please design a high-level architecture for an "e-commerce flash sale system" with an estimated QPS of around 10,000 requests per second and a user base of approximately one million.

Q: When my brother was 2 years old, I was double his age. Now I am 40 years old. How old is my brother? Let’s think step by step.
A: When my brother was 2 years, I was 2 * 2 = 4 years old.That’s an age difference of 2 years and I am older. Now I am 40 years old, so my brother is 40 - 2 = 38 years old. The answer is 38.
Q: When I was 3 years old, my partner was 3 times my age. Now,I am 20 years old. How old is my partner? Let’s think step by step.
A:

from langchain.agents import load_tools
from langchain.agents import initialize_agent
from langchain.agents import AgentType
from langchain.llms import VertexAI
prompt = "How many kids do the band members of Metallica have?"
llm = VertexAI(temperature=0.1)
tools = load_tools(["serpapi"], llm=llm)
agent = initialize_agent(tools, llm,
agent=AgentType.ZERO_SHOT_REACT_DESCRIPTION, verbose=True)
agent.run(prompt)

Generate some knowledge about the concepts in the input. Examples:

Input: Google Maps and other highway and street GPS services have replaced what?
Knowledge: Electronic maps are the modern version of paper atlas.

Input: The fox walked from the city into the forest, what was it looking for?
Knowledge: Natural habitats are usually away from cities.

Input: You can share files with someone if you have a connection to a what?
Knowledge: Files can be shared over the Internet.

Input: Too many people want exotic snakes.  The demand is driving what to carry them?
Knowledge: Some people raise snakes as pets.

Input: The body guard was good at his duties, he made the person who hired him what?
Knowledge: The job of body guards is to ensure the safety and security of the employer.

Input: {question}
Knowledge:

Question: Part of golf is trying to get a higher score than others. Yes or no?  

Knowledge: The goal of golf is to complete a set of holes in the fewest number of strokes. A round of golf usually consists of 18 holes. Each hole is played once per round on a standard golf course. Each stroke counts as one point, and the total number of strokes determines the winner of the game. 

Question: Part of golf is trying to get a higher score than others. Yes or no?  

Knowledge: The goal of golf is to complete a set of holes in the fewest number of strokes. A round of golf usually consists of 18 holes. Each hole is played once per round on a standard golf course. Each stroke counts as one point, and the total number of strokes determines the winner of the game.  
Explanation and Answer:

In golf, the objective is to complete the course using as few strokes as possible, not to achieve a higher score. The player with the lowest total number of strokes wins the game. Therefore, trying to get a higher score than others is incorrect.

Answer: No.

VARIABLES
{city} = “Amsterdam”
PROMPT
You are a travel guide. Tell me a fact about the city: