Find subject matter experts on a topic, technology, or internal system by combining real expertise signals (code contributions, document authorship, and meeting or discussion activity) rather than relying on job titles. Use this whenever the user wants to know who to ask about something — phrasings such as who knows about, who is the expert on, the go-to person for, who has worked on, who can I ask about, or subject matter expert for. Use it even when the user does not say the word expert but clearly needs a person with deep, demonstrated knowledge of an area. Do not use it for plain directory lookups (an email address, manager, or org placement with no expertise angle), which is a simple employee lookup.