# 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.

- **Type:** Skill
- **Install:** `agentstack add skill-phuryn-pm-skills-prioritize-assumptions`
- **Verified:** Yes — security-reviewed for prompt injection and unsafe behavior
- **Seller:** [phuryn](https://agentstack.voostack.com/s/phuryn)
- **Installs:** 0
- **Category:** [Agent Skills](https://agentstack.voostack.com/c/agent-skills)
- **Latest version:** 0.1.0
- **License:** MIT
- **Upstream author:** [phuryn](https://github.com/phuryn)
- **Source:** https://github.com/phuryn/pm-skills/tree/main/pm-product-discovery/skills/prioritize-assumptions
- **Website:** https://www.productcompass.pm/p/pm-skills-2-red-team-ship

## Install

```sh
agentstack add skill-phuryn-pm-skills-prioritize-assumptions
```

Requires the [AgentStack CLI](https://agentstack.voostack.com/docs/cli). Works with Claude Code, Cursor, and any MCP-compatible agent.

## About

## 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:
   - Maximizes validated learning with minimal effort
   - Measures actual behavior, not opinions
   - Has a clear success metric and threshold

4. **Present results** as a prioritized matrix or table.

Think step by step. Save as markdown if the output is substantial.

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### Further Reading

- [Assumption Prioritization Canvas: How to Identify And Test The Right Assumptions](https://www.productcompass.pm/p/assumption-prioritization-canvas)
- [Continuous Product Discovery Masterclass (CPDM)](https://www.productcompass.pm/p/cpdm) (video course)

## Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

- **Author:** [phuryn](https://github.com/phuryn)
- **Source:** [phuryn/pm-skills](https://github.com/phuryn/pm-skills)
- **License:** MIT
- **Homepage:** https://www.productcompass.pm/p/pm-skills-2-red-team-ship

Install and usage instructions live in the source repository linked above.

## Pricing

- **Free** — Free

## Security capabilities

Automated source analysis of v0.1.0 — what this tool can access:

- **Network access:** no
- **Filesystem access:** no
- **Shell / process execution:** no
- **Environment & secrets:** no
- **Dynamic code execution:** no

*"Yes" means the capability is present in the source — more access means more to trust, not that it is unsafe.*


## Versions

- **0.1.0** — security scan: passed — Imported from the upstream source.

## Links

- Listing page: https://agentstack.voostack.com/l/skill-phuryn-pm-skills-prioritize-assumptions
- Seller: https://agentstack.voostack.com/s/phuryn
- Browse the marketplace: https://agentstack.voostack.com/browse

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Listed on AgentStack — the marketplace for AI agent skills and MCP servers. Every listing is security-reviewed. Creators keep 70%.