Most tools that build Anki cards from a web page wait for you to notice a word: you click it, it fetches a definition, it files a card. I wanted the other half of that job done; deciding which words in this article are worth a card at all.
Brinsley is a Firefox extension. You highlight a passage, click the icon, and it reads the passage and proposes a word list: each word banded by frequency, each with an estimated level written ~B2, and each with the sentence it actually appeared in. Words it judged too common or too obscure to teach are set aside and counted, so you can see what it declined and disagree with it. Untick anything you don’t want, save, and you get a .csv to import.
Two things it deliberately does not do. It does not talk to AnkiConnect; it writes a file, so Anki need not be running and no port is open. And it makes no network request at all: no server, no account, no API key, no telemetry. The code ships unminified and you are invited to read it.
The sentence on the back of every card is taken word for word from the article you highlighted. It writes no example sentences of its own.
The add-on is free and is what the store serves today. I would mostly like to know where the word choice is wrong; a passage where it picked badly is worth more to me right now than anything else.
The page, with the store link on it, is https://brinsley.info