Day 2 end capstone move of a Foundation Sprint. Compresses the sprint's full strategic frame into a single canonical sentence (the Founding Hypothesis) plus an assumption scorecard, why-we-believe, what-could-prove-us-wrong, and recommended next validation step. Use after Magic Lenses is signed. Strict canonical template; paraphrase is not accepted in v0.1.0.
Install
npx skills add product-on-purpose/pm-skills --skill tool-foundation-sprint-founding-hypothesisnpx skills add product-on-purpose/pm-skills --skill tool-foundation-sprint-founding-hypothesis -a claude-code -gnpx skills add product-on-purpose/pm-skills --skill tool-foundation-sprint-founding-hypothesis -a codex -ggemini skills install https://github.com/product-on-purpose/pm-skills.git --path skills/tool-foundation-sprint-founding-hypothesisgh skill install product-on-purpose/pm-skills tool-foundation-sprint-founding-hypothesisgit clone --depth 1 https://github.com/product-on-purpose/pm-skills /tmp/product-on-purpose__pm-skills
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/product-on-purpose__pm-skills/skills/tool-foundation-sprint-founding-hypothesis ~/.claude/skills/tool-foundation-sprint-founding-hypothesis # Claude Code
cp -R /tmp/product-on-purpose__pm-skills/skills/tool-foundation-sprint-founding-hypothesis ~/.agents/skills/tool-foundation-sprint-founding-hypothesis # Codex, Cursor, Gemini CLI, Copilot, OpenCode