Description
When the text_editor tool creates a new file, it should ensure that the file ends with a trailing newline character. This is a widely adopted convention in many programming languages and coding standards (e.g., POSIX standard, Python PEP 8) to avoid issues with tools that expect files to end with a newline.
Current Behavior
Files created by the text_editor tool may not have a trailing newline, depending on the content provided.
Expected Behavior
The text_editor tool should automatically append a trailing newline (\n) at the end of the file content when creating new files.
Benefits
- Consistency: Aligns with common coding standards and best practices.
- Compatibility: Prevents issues with version control systems (e.g., Git) and other tools that expect files to end with a newline.
- Improved Developer Experience: Reduces unnecessary diff noise and linter warnings.
Proposed Solution
Modify the text_editor tool's file creation logic to ensure a trailing newline is always added when creating files.
Note: This is a duplicate of issue #2825, created specifically for contribution purposes.