The body is lean: it skips concept explanations Claude already knows (no "what is a PDF"), and tokens like the install/PATH note and format list each earn their place, matching the "lean and efficient" anchor.

It provides copy-paste-ready, executable bash commands (single-file convert, save to file, pipe to a tool), a numbered attached-file flow, and a concrete flags table rather than vague direction.

The attached-file workflow is a clearly sequenced 2-step process (convert, then read); since conversion is non-destructive no validation checkpoint is required, and the troubleshooting section supplies error-recovery guidance for OCR/chart edge cases.

This single-purpose tool wrapper needs no external bundle files (none exist) and is organized into well-signaled sections (Supported formats, Basic usage, Reading a user-attached file, Useful flags, When NOT to use, Troubleshooting), so the overview stands cleanly on its own.

The description names the concrete action ("Convert binary documents ... to clean LLM-friendly Markdown") and enumerates seven specific input formats, matching the "lists multiple specific concrete actions" anchor.

It explicitly answers both "what" (convert binary docs to Markdown via markitdown) and "when" ("Use when a user attaches a binary file and you need to read its contents"), with an explicit trigger clause.

It surfaces natural terms users would actually say (PDF, DOCX, XLSX, PPTX, HTML, EPUB, images, binary file), giving good coverage of common variations rather than technical jargon.

The binary-to-Markdown conversion niche is distinct and uses third-person voice ("Convert binary documents"), making it unlikely to trigger for the wrong skill.