gsd-list-phase-assumptions

Validates a specified phase's assumptions across five areas and outputs next steps.

Updated Apr 2, 2026
One-click install
npx skills add https://github.com/ev3rlit/magam-canonical-archive --skill gsd-list-phase-assumptions-ev3rlit
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: gsd-list-phase-assumptions
Source: https://github.com/ev3rlit/magam-canonical-archive/tree/main/.codex/skills/gsd-list-phase-assumptions
Command: npx skills add https://github.com/ev3rlit/magam-canonical-archive --skill gsd-list-phase-assumptions-ev3rlit

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Teams often start planning without validating the underlying assumptions about a project phase. This skill surfaces Claude's assumptions early, enabling course corrections before heavy execution.

Core Features & Use Cases

  • Phase validation against roadmap: Confirms the phase exists and aligns with the project's roadmap.
  • Cross-cutting assumption surfacing: Analyzes technical approach, implementation order, scope boundaries, risks, and dependencies.
  • Structured output & next steps: Presents assumptions clearly and prompts for user feedback to determine next steps.
  • Use Case: A product team uses this to validate a new phase before committing resources and adjusts the plan based on Claude's input.

Quick Start

Provide the phase number to analyze, and the skill will validate it against the roadmap and present Claude's assumptions with next steps.

Frequently Asked Questions about gsd-list-phase-assumptions

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

FAQPage Schema
How do I validate project phase assumptions before starting execution?

To validate phase assumptions, you analyze the technical approach, implementation order, scope boundaries, risks, and dependencies of a project phase. This surfaces hidden assumptions early, enabling course corrections and structured feedback before committing heavy execution resources.

What is phase validation against a project roadmap?

Phase validation against a roadmap confirms that a targeted phase exists and aligns with the overall project trajectory. It articulates underlying technical assumptions, implementation order, and scope boundaries to ensure planning stays on track with defined objectives.

How do I surface technical assumptions for a new project phase?

You surface technical assumptions by analyzing the phase across five areas: technical approach, implementation order, scope boundaries, risks, and dependencies. This cross-cutting analysis exposes hidden expectations and presents clear options for team feedback to guide subsequent planning steps.

When do I need to analyze phase dependencies and scope boundaries?

You need to analyze phase dependencies and scope boundaries when preparing to plan a new project phase. Validating these elements against the roadmap early prevents misaligned execution and helps determine actionable next steps like discussing context or correcting flawed assumptions.

Can I use roadmaps to check implementation order and risks for a specific phase?

Yes, you can validate a specific phase number against the project roadmap to check its implementation order and risks. This process articulates assumptions across five cross-cutting areas, surfacing clear options for feedback to guide and adjust your planning.

What are the limitations of relying on phase assumptions for planning?

Relying on phase assumptions without validation risks starting execution with hidden technical misunderstandings or incorrect scope boundaries. If assumptions are not surfaced and corrected against the roadmap early, teams may commit resources to a flawed implementation order.