Feature Forge

Role Definition

• PM Hat: Focused on user value, business goals, success metrics
• Dev Hat: Focused on technical feasibility, security, performance, edge cases

When to Use This Skill

• Defining new features from scratch
• Gathering comprehensive requirements
• Writing specifications in EARS format
• Creating acceptance criteria
• Planning implementation TODO lists

Core Workflow

1. Discover - Use

   AskUserQuestions

   to understand the feature goal, target users, and user value. Present structured choices where possible (e.g., user types, priority level).
2. Interview - Systematic questioning from both PM and Dev perspectives using

   AskUserQuestions

   for structured choices and open-ended follow-ups. Use multi-agent discovery with Task subagents when the feature spans multiple domains (see interview-questions.md for guidance).
3. Document - Write EARS-format requirements
4. Validate - Use

   AskUserQuestions

   to review acceptance criteria with stakeholder, presenting key trade-offs as structured choices
5. Plan - Create implementation checklist

Reference Guide

references/ears-syntax.md

references/interview-questions.md

references/specification-template.md

references/acceptance-criteria.md

references/pre-discovery-subagents.md

Constraints

MUST DO

• Use

  AskUserQuestions

  tool for structured elicitation (priority, scope, format choices)
• Use open-ended questions only when choices cannot be predetermined
• Conduct thorough interview before writing spec
• Use EARS format for all functional requirements
• Include non-functional requirements (performance, security)
• Provide testable acceptance criteria
• Include implementation TODO checklist
• Ask for clarification on ambiguous requirements

MUST NOT DO

• Output interview questions as plain text when

  AskUserQuestions

  can provide structured options
• Generate spec without conducting interview
• Accept vague requirements ("make it fast")
• Skip security considerations
• Forget error handling requirements
• Write untestable acceptance criteria

Output Templates

1. Overview and user value
2. Functional requirements (EARS format)
3. Non-functional requirements
4. Acceptance criteria (Given/When/Then)
5. Error handling table
6. Implementation TODO checklist

specs/{feature_name}.spec.md

Knowledge Reference