With only one tool, there is no possibility of ambiguity or overlap between tools. The tool has a single, clear purpose: parsing documents from various formats into Markdown.

The single tool name follows a clear verb_noun pattern (parse_document_by_path), and there are no other tools to create inconsistency. The naming is straightforward and descriptive.

A single tool is too few for the apparent scope of document parsing, which might benefit from additional operations like listing supported formats, handling errors, or batch processing. This minimal set feels thin and limited.

The tool surface is severely incomplete for document parsing. It only offers parsing by path, with no tools for validation, metadata extraction, or handling different input sources (e.g., URLs or streams), leaving significant gaps in functionality.