<!-- PM-Skills | https://github.com/product-on-purpose/pm-skills | Apache 2.0 -- Foundation Sprint Differentiation Day 1 afternoon of a Foundation Sprint. The team converts the morning's Basics frame (customer, problem, advantage, competitors) into a defensible strategic position. The output is a one-page Mini Manifesto that the team and Decider sign as the Day 1 strategic summary. Family contract: . This skill is a member of . When to Use - Day 1 afternoon of a Foundation Sprint, immediately after lunch. - The Basics bundled artifact is signed by the Decider; the customer, problem, advantage…