brainstorm-experiments-existing
An agent skill by phuryn, from phuryn/pm-skills. Tags: automation, brainstorming, product-strategy, strategy, web.
What it does
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
With the skills CLI, which installs into Claude Code, Codex, Cursor and other agents:
npx skills add phuryn/pm-skills --skill brainstorm-experiments-existing
Or copy the skill folder into Claude Code's skills directory by hand (~/.claude/skills for every project, or .claude/skills inside one):
git clone --depth 1 https://github.com/phuryn/pm-skills
cp -r pm-skills/pm-product-discovery/skills/brainstorm-experiments-existing ~/.claude/skills/brainstorm-experiments-existing
Safety box score
Not rated yet. A safety box score grades what a skill and its scripts can reach on the machine of whoever installs it, across eight categories from shell execution to secrets access. Anyone can request one from this page; it is saved for everyone. How the score works.
Source
- Repository
- phuryn/pm-skills (all skills from this repository)
- Path
- pm-product-discovery/skills/brainstorm-experiments-existing/SKILL.md
- Branch
- main
- Updated
- 2026-09-19
Related skills
- brainstorm-experiments-new — Design lean startup experiments (pretotypes) for a new product.
- free-tools — When the user wants to plan, evaluate, or build a free tool for marketing purposes — lead generation, SEO value, or brand awareness.
- goal-prompt — Drafts copy-paste-ready /goal commands for goal mode in Claude Code and Codex.
- ansoff-matrix — Generate an Ansoff Matrix analysis mapping growth strategies across market penetration, market development, product development, and diversification.
- brainstorm-ideas-existing — Brainstorm product ideas for an existing product using multi-perspective ideation from PM, Designer, and Engineer viewpoints.
- brainstorm-ideas-new — Brainstorm feature ideas for a new product in initial discovery from PM, Designer, and Engineer perspectives.