Prioritize Assumptions

Prioritize assumptions using an Impact × Risk matrix and suggest experiments for each. Use when triaging a list of assumptions, deciding what to test first, or applying the assumption prioritization canvas.

27,559 stars 2,851 forksTesting & QA

Install

skills CLI (Claude Code, Cursor, Codex and more)

npx skills add phuryn/pm-skills --skill prioritize-assumptions

Manual install

git clone --depth 1 https://github.com/phuryn/pm-skills.git /tmp/pm-skills
mkdir -p ~/.claude/skills
cp -r /tmp/pm-skills/pm-product-discovery/skills/prioritize-assumptions ~/.claude/skills/prioritize-assumptions

Personal skills live in ~/.claude/skills. Use .claude/skills in a project folder to share a skill with your team.

From the SKILL.md

## Prioritize Assumptions

Triage assumptions using an Impact × Risk matrix and suggest targeted experiments.

### Context

You are helping prioritize assumptions for **$ARGUMENTS**.

If the user provides files with assumptions or research data, read them first.

### Domain Context

**ICE** works well for assumption prioritization: Impact (Opportunity Score × # Customers) × Confidence (1–10) × Ease (1–10). Opportunity Score = Importance × (1 − Satisfaction), normalized to 0–1 (Dan Olsen). **RICE** splits Impact into Reach × Impact separately: (R × I × C) / E. See the `prioritization-frameworks` skill for full formulas and templates.

### Instructions

The user will provide a list of assumptions to prioritize. Apply the following framework:

1. **For each assumption**, evaluate two dimensions:
   - **Impact**: The value created by validating this assumption AND the number of customers affected (in ICE: Impact = Opportunity Score × # Customers)
   - **Risk**: Defined as (1 - Confidence) × Effort

2. **Categorize each assumption** using the Impact × Risk matrix:
   - **Low Impact, Low Risk** → Defer testing until higher-priority assumptions are addressed
   - **High Impact, Low Risk** → Proceed to implementation (low risk, high reward)
   - **Low Impact, High Risk** → Reject the idea (not worth the investment)
   - **High Impact, High Risk** → Design an experiment to test it

3. **For each assumption requiring testing**, suggest an experiment that:

Read the full skill on GitHub

Details

Skill name: prioritize-assumptions
Repository: phuryn/pm-skills
Path: pm-product-discovery/skills/prioritize-assumptions/SKILL.md
License: MIT
Repo updated: 29 October 2026
Listed in: heilcheng/awesome-agent-skills, skillmatic-ai/awesome-agent-skills, VoltAgent/awesome-agent-skills

FAQ

What does the Prioritize Assumptions skill do?

How do I install the Prioritize Assumptions skill?

skills CLI (Claude Code, Cursor, Codex and more): npx skills add phuryn/pm-skills --skill prioritize-assumptions. Skills go in ~/.claude/skills (personal) or .claude/skills (project), and Claude loads them automatically when a task matches the description.

Is Prioritize Assumptions popular?

It lives in phuryn/pm-skills, which has 27,559 GitHub stars and 2,851 forks, and is included in 3 curated skill lists.

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