Apply suggestions from code review

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

cookbook/copilot-sdk/README.md

@@ -87,4 +87,4 @@ go run <filename>.go
 
 ## Status
 
-Cookbook structure is complete with 5 recipes across all 4 supported languages. Each recipe includes both markdown documentation and runnable examples. The RALPH-loop recipe demonstrates iterative self-referential AI loops for autonomous task completion.
+Cookbook structure is complete with 6 recipes across all 4 supported languages. Each recipe includes both markdown documentation and runnable examples. The RALPH-loop recipe demonstrates iterative self-referential AI loops for autonomous task completion.

cookbook/copilot-sdk/dotnet/ralph-loop.md

@@ -5,8 +5,8 @@ Implement self-referential feedback loops where an AI agent iteratively improves
 > **Runnable example:** [recipe/ralph-loop.cs](recipe/ralph-loop.cs)
 >
 > ```bash
-> cd dotnet/recipe
-> dotnet run ralph-loop.cs
+> cd dotnet
+> dotnet run recipe/ralph-loop.cs
 > ```
 
 ## What is RALPH-loop?

cookbook/copilot-sdk/go/ralph-loop.md

@@ -5,8 +5,8 @@ Implement self-referential feedback loops where an AI agent iteratively improves
 > **Runnable example:** [recipe/ralph-loop.go](recipe/ralph-loop.go)
 >
 > ```bash
-> cd go/recipe
-> go run ralph-loop.go
+> cd go
+> go run recipe/ralph-loop.go
 > ```
 
 ## What is RALPH-loop?
@@ -20,13 +20,13 @@ RALPH-loop is a development methodology for iterative AI-powered task completion
 
 ## Example Scenario
 
-You need to iteratively improve code until all tests pass. Instead of asking Claude to "write perfect code," you use RALPH-loop to:
+You need to iteratively improve code until all tests pass. Instead of asking Copilot to "write perfect code," you use RALPH-loop to:
 
 1. Send the initial prompt with clear success criteria
-2. Claude writes code and tests
-3. Claude runs tests and sees failures
+2. Copilot writes code and tests
+3. Copilot runs tests and sees failures
 4. Loop automatically re-sends the prompt
-5. Claude reads test output and previous code, fixes issues
+5. Copilot reads test output and previous code, fixes issues
 6. Repeat until all tests pass and completion promise is output
 
 ## Basic Implementation

cookbook/copilot-sdk/nodejs/ralph-loop.md

@@ -5,8 +5,7 @@ Implement self-referential feedback loops where an AI agent iteratively improves
 > **Runnable example:** [recipe/ralph-loop.ts](recipe/ralph-loop.ts)
 >
 > ```bash
-> cd nodejs/recipe
-> npm install
+> cd recipe && npm install
 > npx tsx ralph-loop.ts
 > ```
 
@@ -21,13 +20,13 @@ RALPH-loop is a development methodology for iterative AI-powered task completion
 
 ## Example Scenario
 
-You need to iteratively improve code until all tests pass. Instead of asking Claude to "write perfect code," you use RALPH-loop to:
+You need to iteratively improve code until all tests pass. Instead of asking Copilot to "write perfect code," you use RALPH-loop to:
 
 1. Send the initial prompt with clear success criteria
-2. Claude writes code and tests
-3. Claude runs tests and sees failures
+2. Copilot writes code and tests
+3. Copilot runs tests and sees failures
 4. Loop automatically re-sends the prompt
-5. Claude reads test output and previous code, fixes issues
+5. Copilot reads test output and previous code, fixes issues
 6. Repeat until all tests pass and completion promise is output
 
 ## Basic Implementation

cookbook/copilot-sdk/nodejs/recipe/ralph-loop.ts

@@ -22,8 +22,11 @@ class RalphLoop {
      * Run the RALPH-loop until completion promise is detected or max iterations reached.
      */
     async run(initialPrompt: string): Promise<string> {
+        let session: Awaited<ReturnType<CopilotClient["createSession"]>> | null = null;
+
         await this.client.start();
-        const session = await this.client.createSession({
+        try {
+            session = await this.client.createSession({
                 model: "gpt-5.1-codex-mini"
             });
 
@@ -62,7 +65,11 @@ class RalphLoop {
                 console.error(`\nError during RALPH-loop: ${error instanceof Error ? error.message : String(error)}`);
                 throw error;
             } finally {
+                if (session) {
                     await session.destroy();
+                }
+            }
+        } finally {
             await this.client.stop();
         }
     }

cookbook/copilot-sdk/python/ralph-loop.md

@@ -5,11 +5,9 @@ Implement self-referential feedback loops where an AI agent iteratively improves
 > **Runnable example:** [recipe/ralph_loop.py](recipe/ralph_loop.py)
 >
 > ```bash
-> cd python/recipe
-> pip install -r requirements.txt
+> cd recipe && pip install -r requirements.txt
 > python ralph_loop.py
 > ```
-
 ## What is RALPH-loop?
 
 RALPH-loop is a development methodology for iterative AI-powered task completion. Named after the Ralph Wiggum technique, it embodies the philosophy of persistent iteration:
@@ -21,13 +19,13 @@ RALPH-loop is a development methodology for iterative AI-powered task completion
 
 ## Example Scenario
 
-You need to iteratively improve code until all tests pass. Instead of asking Claude to "write perfect code," you use RALPH-loop to:
+You need to iteratively improve code until all tests pass. Instead of asking Copilot to "write perfect code," you use RALPH-loop to:
 
 1. Send the initial prompt with clear success criteria
-2. Claude writes code and tests
-3. Claude runs tests and sees failures
+2. Copilot writes code and tests
+3. Copilot runs tests and sees failures
 4. Loop automatically re-sends the prompt
-5. Claude reads test output and previous code, fixes issues
+5. Copilot reads test output and previous code, fixes issues
 6. Repeat until all tests pass and completion promise is output
 
 ## Basic Implementation

cookbook/copilot-sdk/python/recipe/ralph_loop.py

@@ -25,7 +25,9 @@ class RalphLoop:
         """
         Run the RALPH-loop until completion promise is detected or max iterations reached.
         """
+        session = None
         await self.client.start()
+        try:
             session = await self.client.create_session(
                 SessionConfig(model="gpt-5.1-codex-mini")
             )
@@ -73,7 +75,9 @@ class RalphLoop:
                 print(f"\nError during RALPH-loop: {e}")
                 raise
             finally:
+                if session is not None:
                     await session.destroy()
+        finally:
             await self.client.stop()
 
     def _build_iteration_prompt(self, initial_prompt):