Non-native English speakers often hesitate between 'a' and 'an' when writing technical docs or comments.
A browser extension that highlights and explains these choices in real-time, with examples from technical contexts.
Freelancers and global tech teams would pay for polished writing that avoids amateur mistakes.
First version: basic detection for 'a'/'an' before vowels/consonants with tooltips. Risk: Most users might not notice enough value over built-in spellcheckers.