Because the handbook is a document nobody reads and the policy is genuinely complicated. So people ask, and a person answers the same question about carry-over every January.
A general AI is worse than useless here: an invented policy answer is a liability.
It answers from your own uploaded policies and the personnel record, citing the document and section, and applying the asker's permissions.
Someone asking their own leave balance gets it; asking about a colleague's, they do not.
It will not interpret policy in a hard case. Where the answer requires judgement it hands to a person, because a confident wrong answer about someone's entitlement causes real harm.
It also will not expose personnel data beyond permissions.
The repetitive half of the inbox reduces, and the answers are consistent because they come from the approved document.
The questions it cannot answer become the list of policies that are unclear or unwritten.
Your uploaded documents, cited by section.
Only within the asker's permissions.
It hands over rather than guessing.
Half an hour on your own numbers is usually enough to say whether Pulse is the right place to start.