first principles Shipped
What this lens looks for
Apply the first-principles-thinking technique as specified in the framing-techniques guideline (agenticdevelopercookbook://guidelines/brainstorming/framing-techniques). List explicit assumptions before stripping them; rebuild from fundamental truths. Requirements: first-principles-list-assumptions, first-principles-rebuild, first-principles-distinguish.
What its verifier checks
Frame phase. Invoke when the user's domain has strong orthodoxies, or when Five Whys reveals that the "how" is assumed before the "why" is clear. See the framing-techniques guideline.