Course: AI Prompt Engineering

Context Windows

Chapter 3: Context Windows in AI Prompt Engineering

Learn how to manage context windows effectively in AI interactions. Master techniques for handling long conversations, optimizing token usage, and maintaining continuity across complex interactions.


1. Understanding Context Windows

A context window is the amount of text an AI model can “see” at once. Think of it as the AI’s working memory—everything it references to generate a response.

Why Context Management Matters:

  • Ensures relevant information is available
  • Maintains conversation coherence
  • Optimizes token usage
  • Improves response quality
  • Prevents context loss

2. Token-Aware Prompting

AI processes text in tokens (small units of words or characters). Managing token usage improves efficiency.

Example: Regular vs. Token-Efficient Prompting

Inefficient Prompt:

Please read this entire document and provide a detailed analysis, including all examples, references, historical context, and future implications...

(Wastes tokens, lacks focus.)

Optimized Prompt:

Focus: Key financial metrics from Q3 report  
Required Analysis:  
1. Top 3 revenue drivers  
2. Major expense categories  
3. Profit margin trends  

Format:  
- Brief overview (50 words)  
- Key findings (3-5 bullets)  
- Recommendations (2-3 items)  

(More focused, uses fewer tokens, ensures better AI responses.)

Why This Works Better:

✅ Prioritizes essential details
✅ Defines clear scope
✅ Reduces token consumption
✅ Improves response accuracy


3. Context Retention Techniques

Keeping AI responses relevant requires maintaining context throughout a conversation.

Regular vs. Context-Aware Conversations

Inefficient Approach:

User: What's machine learning?  
AI: [Explains machine learning]  
User: What about neural networks?  
AI: [Explains neural networks from scratch]  
User: How does this help with image recognition?  
AI: [Gives generic answer, disconnected from prior responses]  

Optimized Approach (Context-Aware Conversation Flow):

1️⃣ Initial Context Setting:

TOPIC: Machine Learning Journey  
GOAL: Learn ML concepts step by step  
MAINTAIN: Connect each concept to prior learning  

2️⃣ Building on Prior Knowledge:

User: Explain neural networks in relation to what we've discussed.  
AI: [References ML basics, explains neural networks in context]  

3️⃣ Applying Context to New Topics:

User: Using our discussion, how does this apply to image recognition?  
AI: [Explains image recognition, connecting ML and neural networks]  

Why This Works Better:

✅ Maintains knowledge progression
✅ Ensures relevant connections
✅ Prevents repetitive explanations
✅ Builds a coherent learning path


4. Context Summarization

AI models lose track of long conversations. Use summaries to refresh context instead of pasting full conversations.

Inefficient Approach:

[Pasting entire conversation]  
Now, what should we do next?  

Optimized Summary Prompt:

Summarize our discussion using this format:  

1. **Decisions & Facts**  
   - Key decisions made (include dates, budgets)  
   - Any agreed requirements  

2. **Current Discussion Points**  
   - What we’re actively discussing  
   - Options under consideration  

3. **Next Steps & Open Items**  
   - What needs to be decided next  
   - Any unanswered questions  

Example AI Response:

CONVERSATION SUMMARY:  

✅ **Decisions Made:**  
- Mobile-first approach approved  
- Budget: $50K  
- Timeline: Q4 2024  

📌 **Current Focus:**  
- Implementation planning  
- Resource allocation  

➡️ **Next Steps:**  
- Decide initial action plan  

Using the Summary for Continued Discussion:

Using the above summary, let’s now discuss [new topic].  

5. Progressive Context Building (Priming AI)

Priming AI involves introducing information step by step to improve understanding and avoid errors.

Example: Learning AI Concepts Step-by-Step

🔹 Step 1: Prime with Basics

TOPIC: What is AI?  
FOCUS: Basic definition and main types  
GOAL: Build fundamental understanding  

🔹 Step 2: Connect to Next Topic

PREVIOUS KNOWLEDGE: AI basics and types  
NEW TOPIC: Machine Learning  
GOAL: Relate ML to AI fundamentals  

🔹 Step 3: Expand to Advanced Topics

FOUNDATION: AI fundamentals, ML concepts  
NEW TOPIC: Neural Networks  
GOAL: Understand how neural networks fit into ML  

Why This Works:

✅ Prevents AI from forgetting key context
✅ Builds a structured knowledge path
✅ Reduces misinterpretation of topics


6. Context Refresh Strategies

Maintain continuity by checking and refreshing context when needed.

Two Key Techniques:

1️⃣ Ask AI for a Summary Before Continuing:

Before we continue, summarize:  
1. Key points we discussed  
2. Decisions made  
3. Current focus  

2️⃣ Verify AI’s Understanding:

Confirm if this is correct:  
- Topic: [Your focus]  
- Last discussed: [Previous key point]  
Is this accurate? If not, clarify.  

Example:

User: Let’s continue.  

AI: To ensure we're aligned, here’s a recap:  
- We're designing a fitness app  
- Last topic: User authentication  
- Next step: Decide login method  
Is this correct?  

User: Yes, let’s proceed.  

Why This Helps:

Prevents confusion
Keeps discussions aligned
Verifies AI understanding


7. Advanced Context Management

For complex projects, structure your prompts clearly.

Example: Managing a Food Delivery App Project

PROJECT: Food Delivery App  

🍽️ **Customer Experience**  
✔️ Menu browsing & shopping cart work  
🚧 Payment system needs development  

👨‍🍳 **Restaurant Operations**  
✔️ Order receiving & kitchen alerts work  
🚧 Need to integrate delivery timing  

🚗 **Delivery System**  
✔️ GPS tracking & route planning work  
🚧 Need pickup confirmation feature  

TODAY'S FOCUS:  
How should the payment system trigger a restaurant alert?  

How This Helps:

Breaks complex projects into sections
Tracks progress clearly
Shows dependencies between parts


8. Common Pitfalls to Avoid

🔴 Context Overload – Adding unnecessary details or repeating established information
🔴 Context Fragmentation – Losing key information across turns or mixing unrelated topics
🔴 Poor Context Organization – Unstructured prompts with unclear relevance


9. Next Steps in the Series

Next, we’ll cover:

▶️ Chapter 4: Output Control Techniques

  • Response format control
  • Output style management
  • Quality assurance methods
  • Validation techniques

Final Thoughts

Learning context windows improves AI efficiency, prevents miscommunication, and ensures high-quality responses. Use structured prompts, summaries, and progressive learning techniques to get more accurate and relevant AI outputs.

EQ4C Team

Collaborative efforts of entire team EQ4C.

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