diff --git a/{{cookiecutter.project_slug}}/CLAUDE.md b/{{cookiecutter.project_slug}}/CLAUDE.md
index 8e82838..e5e58bf 100644
--- a/{{cookiecutter.project_slug}}/CLAUDE.md
+++ b/{{cookiecutter.project_slug}}/CLAUDE.md
@@ -16,7 +16,7 @@ uv sync
 ### Code Quality
 - **Linting and formatting**: `uv run ruff check --fix` and `uv run ruff format`
 - **Type checking**: `uv run mypy .`
-- **Combined linting**: `uv run invoke lint` (runs ruff check, ruff format --check, and mypy)
+- **Combined linting**: `uv run invoke lint`
 
 ### Testing
 - **Run tests**: `uv run pytest`
@@ -26,18 +26,7 @@ uv sync
 - **Clean untracked files**: `uv run invoke clean` (interactive)
 - **Version bumping**: `uv run bump-my-version bump [patch|minor|major]`
 
-## Code Architecture
-
-### Core Components (`src/{{ cookiecutter.package_name }}/core.py`)
-
-The library implements the main functionality in the core module. Update this section with:
-
-1. **Key Classes**: Describe main classes and their responsibilities
-2. **Core Functions**: Document important functions and their purpose
-3. **Data Flow**: Explain how data flows through the system
-4. **Dependencies**: List and explain key dependencies
-
-### Project Structure
+## Project Structure
 
 ```
 src/{{ cookiecutter.package_name }}/
@@ -54,16 +43,7 @@ tests/
 
 ## Development Notes
 
-- Uses Python {{ cookiecutter.python_version }}+ with modern type hints (PEP 604)
+- Uses Python {{ cookiecutter.python_version }}+ with modern type hints
 - Configured with ruff for linting/formatting and mypy for type checking
 - Built with uv for dependency management
-- Includes invoke tasks for common operations
-- Version {{ cookiecutter.version }} ({{ cookiecutter.year }})
-
-## Implementation Guidelines
-
-- Follow test-driven development practices
-- Use descriptive function names and one-liner docstrings for non-trivial functions
-- Keep files between 300–500 lines where possible
-- Don't duplicate code; build upon existing implementations
-- Always use type hints as supported by Python {{ cookiecutter.python_version }}+
\ No newline at end of file
+- Includes invoke tasks for common operations
\ No newline at end of file
diff --git a/{{cookiecutter.project_slug}}/README.md b/{{cookiecutter.project_slug}}/README.md
index 7d4dfd5..19c034b 100644
--- a/{{cookiecutter.project_slug}}/README.md
+++ b/{{cookiecutter.project_slug}}/README.md
@@ -45,9 +45,10 @@ uv run pytest
 ## Usage
 
 ```python
-from {{ cookiecutter.package_name }} import hello
+from {{ cookiecutter.package_name }}.core import say_hello
 
-print(hello())
+say_hello()  # prints: Hello, World!
+say_hello("Alice")  # prints: Hello, Alice!
 ```
 
 ## License
diff --git a/{{cookiecutter.project_slug}}/examples/basic_usage.py b/{{cookiecutter.project_slug}}/examples/basic_usage.py
index d111476..260e91a 100644
--- a/{{cookiecutter.project_slug}}/examples/basic_usage.py
+++ b/{{cookiecutter.project_slug}}/examples/basic_usage.py
@@ -1,21 +1,15 @@
 """Basic usage example for {{ cookiecutter.project_name }}."""
 
-from {{ cookiecutter.package_name }} import hello
-from {{ cookiecutter.package_name }}.core import process_data, {{ cookiecutter.project_name.replace(' ', '').replace('-', '') }}
+from {{ cookiecutter.package_name }}.core import say_hello
 
 
 def main():
     """Demonstrate basic usage."""
     # Basic hello
-    print(hello())
-    
-    # Process some data
-    result = process_data("example data")
-    print(result)
-    
-    # Use main class
-    instance = {{ cookiecutter.project_name.replace(' ', '').replace('-', '') }}("example")
-    print(instance.run())
+    say_hello()
+
+    # Hello with a name
+    say_hello("{{ cookiecutter.project_name }}")
 
 
 if __name__ == "__main__":
diff --git a/{{cookiecutter.project_slug}}/src/{{cookiecutter.package_name}}/__init__.py b/{{cookiecutter.project_slug}}/src/{{cookiecutter.package_name}}/__init__.py
index edc0ab2..a37e042 100644
--- a/{{cookiecutter.project_slug}}/src/{{cookiecutter.package_name}}/__init__.py
+++ b/{{cookiecutter.project_slug}}/src/{{cookiecutter.package_name}}/__init__.py
@@ -1,8 +1,3 @@
 """{{ cookiecutter.project_name }} - {{ cookiecutter.description }}"""
 
-__version__ = "{{ cookiecutter.version }}"
-
-
-def hello() -> str:
-    """Return a hello message."""
-    return "Hello from {{ cookiecutter.project_name }}!"
\ No newline at end of file
+__version__ = "{{ cookiecutter.version }}"
\ No newline at end of file
diff --git a/{{cookiecutter.project_slug}}/src/{{cookiecutter.package_name}}/core.py b/{{cookiecutter.project_slug}}/src/{{cookiecutter.package_name}}/core.py
index 4b2aeea..12bf740 100644
--- a/{{cookiecutter.project_slug}}/src/{{cookiecutter.package_name}}/core.py
+++ b/{{cookiecutter.project_slug}}/src/{{cookiecutter.package_name}}/core.py
@@ -1,17 +1,6 @@
 """Core functionality for {{ cookiecutter.project_name }}."""
 
 
-def process_data(data: str) -> str:
-    """Process input data and return result."""
-    return f"Processed: {data}"
-
-
-class {{ cookiecutter.project_name.replace(' ', '').replace('-', '') }}:
-    """Main class for {{ cookiecutter.project_name }}."""
-    
-    def __init__(self, name: str = "default") -> None:
-        self.name = name
-    
-    def run(self) -> str:
-        """Run the main functionality."""
-        return f"Running {{ cookiecutter.project_name }} with {self.name}"
\ No newline at end of file
+def say_hello(name: str = "World") -> None:
+    """Print a hello message."""
+    print(f"Hello, {name}!")
\ No newline at end of file
diff --git a/{{cookiecutter.project_slug}}/tests/test_{{cookiecutter.package_name}}.py b/{{cookiecutter.project_slug}}/tests/test_{{cookiecutter.package_name}}.py
index 0d302e5..3499afb 100644
--- a/{{cookiecutter.project_slug}}/tests/test_{{cookiecutter.package_name}}.py
+++ b/{{cookiecutter.project_slug}}/tests/test_{{cookiecutter.package_name}}.py
@@ -1,25 +1,24 @@
 """Tests for {{ cookiecutter.package_name }}."""
 
-import pytest
+from io import StringIO
+import sys
 
-from {{ cookiecutter.package_name }} import hello
-from {{ cookiecutter.package_name }}.core import process_data, {{ cookiecutter.project_name.replace(' ', '').replace('-', '') }}
+from {{ cookiecutter.package_name }}.core import say_hello
 
 
-def test_hello():
-    """Test hello function."""
-    result = hello()
-    assert "Hello from {{ cookiecutter.project_name }}" in result
+def test_say_hello():
+    """Test say_hello function."""
+    captured_output = StringIO()
+    sys.stdout = captured_output
+    say_hello()
+    sys.stdout = sys.__stdout__
+    assert captured_output.getvalue() == "Hello, World!\n"
 
 
-def test_process_data():
-    """Test process_data function."""
-    result = process_data("test")
-    assert result == "Processed: test"
-
-
-def test_main_class():
-    """Test main class."""
-    instance = {{ cookiecutter.project_name.replace(' ', '').replace('-', '') }}("test")
-    result = instance.run()
-    assert "Running {{ cookiecutter.project_name }} with test" in result
\ No newline at end of file
+def test_say_hello_with_name():
+    """Test say_hello function with custom name."""
+    captured_output = StringIO()
+    sys.stdout = captured_output
+    say_hello("Alice")
+    sys.stdout = sys.__stdout__
+    assert captured_output.getvalue() == "Hello, Alice!\n"
\ No newline at end of file