Design experiments to test assumptions for an existing product — prototypes, A/B tests, spikes, and other low-effort validation methods. Use when validating assumptions, testing feature ideas cheaply, or planning product experiments.
Install
npx skills add phuryn/pm-skills --skill brainstorm-experiments-existingnpx skills add phuryn/pm-skills --skill brainstorm-experiments-existing -a claude-code -gnpx skills add phuryn/pm-skills --skill brainstorm-experiments-existing -a codex -ggemini skills install https://github.com/phuryn/pm-skills.git --path pm-product-discovery/skills/brainstorm-experiments-existinggh skill install phuryn/pm-skills brainstorm-experiments-existinggit clone --depth 1 https://github.com/phuryn/pm-skills /tmp/phuryn__pm-skills
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/phuryn__pm-skills/pm-product-discovery/skills/brainstorm-experiments-existing ~/.claude/skills/brainstorm-experiments-existing # Claude Code
cp -R /tmp/phuryn__pm-skills/pm-product-discovery/skills/brainstorm-experiments-existing ~/.agents/skills/brainstorm-experiments-existing # Codex, Cursor, Gemini CLI, Copilot, OpenCode