phuryn/pm-skills1 file

Identify Assumptions Existing

Identify risky assumptions for a feature idea in an existing product across Value, Usability, Viability, and Feasibility. Uses multi-perspective devil's advocate thinking. Use when stress-testing a feature idea, doing risk assessment, or preparing for assumption mapping.

Specification
Skill ID
phuryn/pm-skills/identify-assumptions-existing
Publisher
phuryn
Repository
pm-skills
Installs
0
Files
1
Synced
Sep 23, 2026
How to use it

Open any RiverX project, open the Skills panel in the chat, and search for this identifier. The files are fetched from the source repository at install time.

phuryn/pm-skills/identify-assumptions-existingInstalls these files
  • SKILL.md

What this skill tells the agent

Identify Assumptions (Existing Product)

Devil's advocate analysis to surface risky assumptions across four risk areas.

Context

You are stress-testing a feature idea for $ARGUMENTS.

If the user provides files (designs, PRDs, research), read them first.

Instructions

The user will describe their product, objective, market segment, and feature idea. Work through these steps:

  1. Think from three perspectives about why this feature might fail:
  • Product Manager perspective: Business viability, market fit, strategic alignment
  • Designer perspective: Usability, user experience, adoption barriers
  • Engineer perspective: Technical feasibility, performance, integration challenges
  1. Identify assumptions across four risk areas:
  • Value: Will it create value for customers? Does it solve a real problem?
  • Usability: Will users figure out how to use it? Is the learning curve acceptable?
  • Viability: Can marketing, sales, finance, and legal support it?
  • Feasibility: Can it be built with existing technology? Are there integration risks?
  1. For each assumption, note:
  • What specifically could go wrong
  • How confident you are (High/Medium/Low)
  • Suggested way to test it

Think step by step. Be thorough but constructive — the goal is to strengthen the idea, not kill it.


Further Reading

Use this skill in a project

Open any RiverX project, search the Skills panel for phuryn/pm-skills/identify-assumptions-existing, and install it in one click.

Use this skill