What problem does it solve? Writing and maintaining meaningful code comments is tedious, and automated tools often rewrite or reformat code in the process. This Skill adds high-quality comments and docstrings while guaranteeing that all non-comment code remains byte-for-byte identical. ## Core Features & Use Cases - Comment-only insertion: Adds inline comments and doc-comments without modifying, reordering, or reformatting any existing code. - Scoped targeting: Comment an entire file or narrow the scope to a specific function, class, or logical section via a hint like "/comment the sorting logic". - Language-aware docstrings: Generates doc-comments in the native format for Python, JavaScript/TypeScript, Java, Swift, Rust, and C/C++, matching the file's existing style. - Existing comment preservation: Evaluates current comments and only updates them when they are wrong, outdated, or materially incomplete. - Use Case: You inherit an undocumented legacy module. Run the skill on the file to get docstrings for every public function and explanations for non-obvious logic, with zero risk of code changes. ## Quick Start Ask the AI to add comments to the current file, or target a specific section with a command like "/comment the sorting function".