Refactor advanced exercises, add cheatsheet

Author: EficodeRjpalt

exercises/copilot-advanced-mode-a.md

@@ -15,15 +15,21 @@ Master these sophisticated techniques throughout all exercises:
 
 **Advanced Slash Commands**
 - `/tests` with specific context for comprehensive test generation
-- `/doc` for architectural documentation and API specifications
+- `/docs` for architectural documentation and API specifications
 - `/explain` with multi-file context for system understanding
 - `/fix` for automated error resolution with context awareness
+- `/setupTests` for configuring testing frameworks
+
+*📖 See `copilot-cheatsheet.md` for full command reference*
 
 **Precision Context Variables**
 - `#selection` for targeted code analysis and modification
-- `#usage:app.data_config.DataManager.analyze_technology_usage` for tracing function dependencies
 - `#codebase` for broad architectural questions
-- `#terminal` for debugging command outputs
+- `#problems` for debugging issues from Problems panel
+- `#testFailure` for diagnosing failing tests
+- `#terminalLastCommand` for understanding command errors
+
+*📖 See `copilot-cheatsheet.md` for comprehensive context variable reference*
 
 **Strategic Inline Chat Usage**
 - Use `Cmd+I`/`Ctrl+I` for complex refactoring within functions
@@ -381,6 +387,8 @@ Choose exercises based on your development interests and skill areas:
 
    Analyze the existing test coverage. What types of tests are missing? How can we improve test organization and add integration testing, performance testing, and edge case coverage?
    ```
+   
+   *💡 Pro tip: Use `/setupTests` to get framework-specific testing recommendations*
 
 2. **Test Strategy Development:**
    ```

exercises/copilot-advanced-mode-b.md

@@ -111,6 +111,8 @@ Every exercise follows this structured approach:
 
 **Important:** These exercises are designed for agent-driven development. Choose based on your comfort level with delegating implementation to AI while maintaining strategic oversight.
 
+*📖 Reference `copilot-cheatsheet.md` for advanced context variables and commands useful in agent workflows*
+
 **Exercise 1: Intelligent Refactoring Agent** *(Estimated: 3-4 hours with agent)*
 - **Complexity:** High - Full architectural transformation
 - **Agent Autonomy:** High - Requires sophisticated planning and execution
@@ -267,7 +269,7 @@ Format this as THREAD_SUMMARY.md for handoff to a fresh agent.
 
 **Problem Space Exploration:**
 ```
-@workspace I want to add advanced correlation analysis to our application. Before designing solutions, please:
+@workspace I want to add advanced correlation analysis to our application #codebase. Before designing solutions, please:
 
 1. Analyze the current data structure and available columns
 2. Research best practices for correlation analysis in survey data
@@ -277,6 +279,8 @@ Format this as THREAD_SUMMARY.md for handoff to a fresh agent.
 Confirm your understanding of our data quality, sample sizes, and statistical requirements before proposing specific implementations.
 ```
 
+*💡 Use `#codebase` to give the agent full project context for data analysis*
+
 ### Phase 2: Specification Creation
 
 **Statistical Analysis Specification:**

exercises/copilot-cheatsheet.md

@@ -0,0 +1,76 @@
+# GitHub Copilot Cheatsheet - Advanced Features
+
+*Quick reference for advanced Copilot features in VS Code*
+
+## 🎯 Essential Context Variables
+
+| Variable | Purpose | Example Use |
+|----------|---------|-------------|
+| `#codebase` | Project-wide understanding | `How is authentication handled? #codebase` |
+| `#selection` | Current editor selection | `Optimize this function #selection` |
+| `#problems` | Issues from Problems panel | `Fix these errors #problems` |
+| `#changes` | Source control changes | `Generate commit message #changes` |
+| `#terminalLastCommand` | Last terminal command | `Explain this error #terminalLastCommand` |
+| `#testFailure` | Test failure details | `Why is this test failing? #testFailure` |
+| `#usages` | Symbol references/definitions | `Find all uses of this function #usages` |
+
+## 🚀 Powerful Slash Commands
+
+| Command | Purpose | Best For |
+|---------|---------|----------|
+| `/tests` | Generate test suites | Creating comprehensive tests |
+| `/docs` | Generate documentation | Adding docstrings and comments |
+| `/fix` | Fix code issues | Debugging and error resolution |
+| `/explain` | Explain code/concepts | Understanding complex logic |
+| `/new` | Scaffold projects/files | Creating new components |
+| `/setupTests` | Configure testing | Setting up test frameworks |
+| `/fixTestFailure` | Debug failing tests | Test troubleshooting |
+
+## 🎛️ Advanced Features
+
+**Keyboard Shortcuts:**
+- `⌘I` - Inline Chat in editor/terminal
+- `⇧⌥⌘L` - Quick Chat
+- `⌃⌘I` - Open Chat view
+- `F2` - AI-powered symbol renaming
+
+**Chat Participants:**
+- `@workspace` - Project-wide operations
+- `@terminal` - Shell command help
+- `@vscode` - VS Code features help
+- `@github` - GitHub integration
+
+**Custom Instructions:**
+- `.github/copilot-instructions.md` - Project-wide guidance
+- Language-specific settings in VS Code
+- Reusable `.prompt.md` files (experimental)
+
+## 💡 Pro Tips
+
+1. **Combine context**: `#codebase #problems #selection` for comprehensive understanding
+2. **Be specific**: Include framework/library names in requests
+3. **Use drag & drop**: Drop files/folders into chat for instant context
+4. **Chain commands**: Use multiple slash commands in sequence
+5. **Custom instructions**: Create project-specific guidance for consistency
+
+## 🏴‍☠️ Analytics Project Specifics
+
+**For FastAPI endpoints:**
+```
+/new FastAPI endpoint for data analysis with Pydantic models #codebase
+```
+
+**For data processing:**
+```
+/tests generate tests for pandas data processing functions #selection
+```
+
+**For debugging:**
+```
+/fix optimize this query performance #problems #selection
+```
+
+**For documentation:**
+```
+/docs add comprehensive docstrings #selection
+```