Develop an AI tool that, given the current snapshot of HVM3's codebase and a refactor request, correctly assigns which chunks must be updated, in order to fulfill that request. The AI tool must use at most $1 to complete this task, while achieving a recall of at least 90% and a precision of at least 90%.
- HVM3's chunked codebase snapshot (29-12-2024). (static, won't change)