prompt to do a 1st draft of the new lesson 3

Author: elbruno

prompts/Modernizing-Lesson-03-with-DotNetRunApp.md

@@ -0,0 +1,77 @@
+# GitHub Copilot Coding Agent Prompt
+
+This prompt is designed to be used with **GitHub Copilot Coding Agent** in the repository:  
+👉 [Generative-AI-for-beginners-dotnet](https://github.com/microsoft/Generative-AI-for-beginners-dotnet/tree/main/03-CoreGenerativeAITechniques)
+
+---
+
+## Goal
+
+Create a new lesson named **Lesson-03.1-CoreGenerativeAITechniques-runapp**, which is a modernized copy of **Lesson 03**, using the new **`.NET 10 run <file>.cs`** feature.  
+The new lesson will demonstrate the same concepts as Lesson 03 but with simplified **single-file C# demos**.
+
+---
+
+## Tasks
+
+### 1. Create a new lesson folder
+- Path: `03.1-CoreGenerativeAITechniques-runapp`
+- Copy the structure of Lesson 03 (`/src` + Markdown).
+
+### 2. Update the `/src` folder with single-file apps
+- For each demo, create a `.cs` file runnable via `.NET run file.cs`.
+- Suggested naming:
+  - `01-llm-completion.cs`
+  - `02-chat-flow.cs`
+  - `03-functions-and-plugins.cs`
+  - `04-retrieval-augmented-generation.cs`
+  - Add any extra demos as needed (e.g., `05-structured-output.cs`, `06-multimodal.cs`).
+- Remove unnecessary boilerplate — use top-level statements.
+
+### 3. Update Markdown files
+- Base them on Lesson 03’s Markdown.
+- Replace old sample code with references to the new `.cs` files.
+- Embed code snippets directly from the `.cs` files.
+- Add instructions:
+
+  ```bash
+  dotnet run 01-llm-completion.cs
+  ```
+
+- Clearly mention that `.NET 10 SDK` is required.
+
+### 4. Organize Lesson 03.x as sub-lessons (new TOC)
+Create a `README.md` in `03.0-CoreGenerativeAITechniques-Overview` with a table of contents like this:
+
+- **Lesson 03.0 – Core Generative AI Techniques (Overview)**  
+  *High-level intro + TOC for all 3.x lessons.*
+- **Lesson 03.1 – Text-based Techniques (with `.NET run app.cs`)**  
+  - LLM Completions  
+  - Chat Flows  
+  - Prompt Engineering Patterns
+- **Lesson 03.2 – Extending Models with Context**  
+  - Functions and Plugins  
+  - Retrieval Augmented Generation (RAG)  
+  - Structured Outputs / JSON Mode
+- **Lesson 03.3 – Beyond Text**  
+  - Multi-modal Generative AI (text + vision)  
+  - Optional: Speech-to-text-to-LLM
+- **Lesson 03.4 – Intro to Agents**  
+  - Basic agent loop (reasoning + actions)  
+  - Teaser for Lesson 04
+
+### 5. Polish
+- Ensure code compiles with `.NET 10`.
+- Ensure Markdown lessons reference the new samples correctly.
+- Add a note at the top of Lesson 03.1:
+
+  > 💡 *This lesson uses the new `.NET run <file>.cs` feature available in .NET 10. If you’re on an earlier version, please refer to Lesson 03.*
+
+---
+
+## ✅ Expected Output
+- A new folder `03.1-CoreGenerativeAITechniques-runapp` with:
+  - Single-file `.cs` demos runnable with `.NET run`.
+  - Updated Markdown files embedding the new code.
+  - Clear learner instructions.
+- A reorganized **Lesson 03.x Table of Contents** for clarity and growth.