Search the Delaware Division of Corporations ICIS Entity Name Search to retrieve a Delaware File Number for a given entity name and incorporation date. Uses TinyFish Web Agent (AI browser automation) to navigate the portal, disambiguate exact matches by incorporation date, and return a structured result. Use when: (1) a user asks for a Delaware entity's File Number, (2) you need to look up a Delaware entity by name and incorporation date, (3) performing Delaware corporate due diligence or entity verification. Triggers on phrases like 'Delaware file number', 'Delaware entity search', 'DE entity lookup', 'find the file number for [entity]', 'ICIS search'.