The MCP approach is brilliant! I've been solving the same friction problem from a different angle. I mostly use Anki to improve my vocabulary, and ended up building a tiny browser-side tool for myself (now called Wordwise / Anki Dictionary) that lets me double click any word on a webpage, get a clean definition + the sentence it appears in, and export it straight into Anki with one click.
It’s been a surprisingly good middle ground between fully manual cards and fully LLM dumps. If anyone’s curious: https://wordwise.me