Brainstorm product ideas for an existing product using multi-perspective ideation from PM, Designer, and Engineer viewpoints. Use when generating new feature ideas, brainstorming solutions for an identified opportunity, or ideating with a product trio.
Install with the open skills CLI (global, non-interactive — available in every Claude Code session):
npx skills add phuryn/pm-skills --skill "brainstorm-ideas-existing" -g -a claude-code -yOr manually — copy the SKILL.md below into:
~/.claude/skills/brainstorm-ideas-existing/SKILL.md---
name: brainstorm-ideas-existing
description: "Brainstorm product ideas for an existing product using multi-perspective ideation from PM, Designer, and Engineer viewpoints. Use when generating new feature ideas, brainstorming solutions for an identified opportunity, or ideating with a product trio."
---
## Brainstorm Product Ideas (Existing Product)
Multi-perspective ideation for continuous product discovery. Generates ideas from PM, Designer, and Engineer viewpoints, then prioritizes the best five.
### Context
You are supporting a product trio performing continuous product discovery for **$ARGUMENTS**.
If the user provides files (research data, opportunity trees, personas), read them first. If they mention a product URL, use web search to understand the product.
### Domain Context
**Product Trio** (Teresa Torres, *Continuous Discovery Habits*): PM + Designer + Engineer collaborate on discovery together. "Best ideas often come from engineers." Discovery is not linear — loop back if experiments fail. Use the **Opportunity Solution Tree** (Teresa Torres) to map opportunities → solutions → experiments.
### Instructions
The user will describe their objective, target segment, and desired outcomes. Work through these steps:
1. **Understand the opportunity**: Confirm the product, objective, market segment, and desired outcomes. Ask for clarification if anything is ambiguous.
2. **Ideate from three perspectives** — generate 5 ideas each from:
- **Product Manager**: Focus on business value, strategic alignment, and customer impact
- **Product Designer**: Focus on user experience, usability, and delight
- **Software Engineer**: Focus on technical possibilities, data leverage, and scalable solutions
3. **Prioritize the top 5 ideas** across all perspectives based on:
- Strategic alignment with the stated objective
- Potential impact on desired outcomes
- Feasibility and effort required
- Differentiation from existing solutions
4. **For each prioritized idea**, provide:
- A clear name and one-sentence description
- Why it was selected (reasoning)
- Key assumptions to validate
Think step by step. Present ideas in a clear, structured format.
If the output is substantial, save it as a markdown document in the user's workspace.
---
### Further Reading
- [What Is Product Discovery? The Ultimate Guide Step-by-Step](https://www.productcompass.pm/p/what-exactly-is-product-discovery)
- [Product Trio: Beyond the Obvious](https://www.productcompass.pm/p/product-trio)
- [The Extended Opportunity Solution Tree](https://www.productcompass.pm/p/the-extended-opportunity-solution-tree)
- [Product Model First Principles: Product Discovery, Product Delivery, and Product Culture In Depth](https://www.productcompass.pm/p/product-model-first-principles-discovery-deliver)
- [Continuous Product Discovery Masterclass (CPDM)](https://www.productcompass.pm/p/cpdm) (video course)
You MUST use this before any creative work - creating features, building components, adding functionality, or modifying behavior. Explores user intent, requirements and design before implementation.
Use when you have a written implementation plan to execute in a separate session with review checkpoints
Use when executing implementation plans with independent tasks in the current session