[epitrochoid413]

That’s a fair concern. It’s a hybrid system, so dictionaries and rules handle the high-confidence cases, and the context model handles selected ambiguous words.

今日 is extremely common, but in the vast majority of ordinary text it’s read きょう. The こんにち reading is much less common and tends to appear in more formal contexts, so I handled it conservatively.

I do plan to unblock more cases like this once I find a way to speed up the context model.