I designed and shipped a developer tool that turns a messy, un-documented codebase into clean, structured Markdown with a single command. The engineering behind it comes down to a smart filesystem loop that extracts text logic while ignoring binary noise like images, alongside an automated character-capping threshold that protects the backend from hitting strict token limits. By feeding this sanitized code directly into VS Code’s native GitHub Copilot chat model interface, the extension entirely cuts out the need for third-party API keys or manual copy-pasting. It dynamically streams the generated layout straight into a new editor tab, turning an hour of manual technical writing into a five-second automated workflow.