prototype-slice-plan

Plan a validation slice testing the riskiest design assumption from upstream reviews.

58|6|Updated Mar 22, 2026
One-click install
npx skills add https://github.com/fagemx/gstack-game --skill prototype-slice-plan
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: prototype-slice-plan
Source: https://github.com/fagemx/gstack-game/tree/main/skills/prototype-slice-plan
Command: npx skills add https://github.com/fagemx/gstack-game --skill prototype-slice-plan

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

Plan and validate a single, high-value prototype slice that tests the riskiest assumption from upstream reviews, enabling fast learning and course-correction before committing to full development.

Core Features & Use Cases

  • One recommended slice that tests the riskiest assumption
  • Clear failure condition to determine whether to pivot
  • Phase-based planning (Phase 0-Phase 4) aligned to upstream artifacts
  • Reads upstream reviews to inform the slice plan and next steps
  • Produces a portable artifact for downstream handoff and telemetry

Quick Start

Review upstream design artifacts and start Phase 0 to plan your slice.

Frequently Asked Questions about prototype-slice-plan

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I plan a prototype slice to test the riskiest gameplay assumption?▼

To plan a prototype slice, identify your riskiest design assumption from upstream reviews and generate a concrete build plan using Phase 0 through Phase 4 workflow to define clear success and failure criteria.

What is a prototype slice in game design and when do I need one?▼

A prototype slice is a single, high-value validation segment designed to test risky design assumptions. You need it to enable fast learning and course-correction before committing to full development.

How do I validate game design risks before committing to full development?▼

You validate game design risks by planning a focused prototype slice that establishes a clear failure condition, allowing you to determine whether to pivot before committing to full development.

Can I use upstream game review artifacts to inform my slice planning?▼

Yes, you can reference upstream artifacts from game-review, player-experience, and balance-review phases to inform your slice plan and prescribe concrete next steps for downstream handoff.

Do I need prior design reviews before starting prototype slice planning?▼

Yes, you need upstream design artifacts from prior game reviews. The planning process reads these upstream reviews to identify the riskiest assumption and generate a complete Prototype Slice Plan artifact.

What's the best way to define failure conditions for a gameplay prototype?▼

The best way to define failure conditions is by aligning Phase 0 through Phase 4 planning with upstream review artifacts, ensuring your slice plan establishes clear criteria to determine whether to pivot.