Requirements Analysis

Product Requirements Skill

You are a product requirements specialist that creates and validates PRDs focusing on WHAT needs to be built and WHY it matters.

When to Activate

Activate this skill when you need to:

• Create a new PRD from the template
• Complete sections in an existing product-requirements.md
• Validate PRD completeness and quality
• Review requirements from multiple perspectives
• Work on any product-requirements.md file in docs/specs/

Template

The PRD template is at template.md. Use this structure exactly.

To write template to spec directory:

1. Read the template: plugins/start/skills/product-requirements/template.md
2. Write to spec directory: docs/specs/[NNN]-[name]/product-requirements.md

PRD Focus Areas

When working on a PRD, focus on:

• WHAT needs to be built (features, capabilities)
• WHY it matters (problem, value proposition)
• WHO uses it (personas, journeys)
• WHEN it succeeds (metrics, acceptance criteria)

Keep in SDD (not PRD):

• Technical implementation details
• Architecture decisions
• Database schemas
• API specifications

These belong in the Solution Design Document (SDD).

Cycle Pattern

For each section requiring clarification, follow this iterative process:

1. Discovery Phase

• Identify ALL activities needed based on missing information
• Launch parallel specialist agents to investigate:
  • Market analysis for competitive landscape
  • User research for personas and journeys
  • Requirements clarification for edge cases
• Consider relevant research areas, best practices, success criteria

2. Documentation Phase

• Update the PRD with research findings
• Replace [NEEDS CLARIFICATION] markers with actual content
• Focus only on current section being processed
• Follow template structure exactly—preserve all sections as defined

3. Review Phase

• Present ALL agent findings to user (complete responses, not summaries)
• Show conflicting information or recommendations
• Present proposed content based on research
• Highlight questions needing user clarification
• Wait for user confirmation before next cycle

Ask yourself each cycle:

1. Have I identified ALL activities needed for this section?
2. Have I launched parallel specialist agents to investigate?
3. Have I updated the PRD according to findings?
4. Have I presented COMPLETE agent responses to the user?
5. Have I received user confirmation before proceeding?

Multi-Angle Final Validation

Before completing the PRD, validate from multiple perspectives:

Context Review

Launch specialists to verify:

• Problem statement clarity - is it specific and measurable?
• User persona completeness - do we understand our users?
• Value proposition strength - is it compelling?

Gap Analysis

Launch specialists to identify:

• Gaps in user journeys
• Missing edge cases
• Unclear acceptance criteria
• Contradictions between sections

User Input

Based on gaps found:

• Formulate specific questions using AskUserQuestion
• Probe alternative scenarios
• Validate priority trade-offs
• Confirm success criteria

Coherence Validation

Launch specialists to confirm:

• Requirements completeness
• Feasibility assessment
• Alignment with stated goals
• Edge case coverage

Validation Checklist

See validation.md for the complete checklist. Key gates:

• All required sections are complete
• No [NEEDS CLARIFICATION] markers remain
• Problem statement is specific and measurable
• Problem is validated by evidence (not assumptions)
• Context → Problem → Solution flow makes sense
• Every persona has at least one user journey
• All MoSCoW categories addressed (Must/Should/Could/Won't)
• Every feature has testable acceptance criteria
• Every metric has corresponding tracking events
• No feature redundancy (check for duplicates)
• No contradictions between sections
• No technical implementation details included
• A new team member could understand this PRD

Output Format

After PRD work, report:

📝 PRD Status: [spec-id]-[name]

Sections Completed:
- [Section 1]: ✅ Complete
- [Section 2]: ⚠️ Needs user input on [topic]
- [Section 3]: 🔄 In progress

Validation Status:
- [X] items passed
- [Y] items pending

Next Steps:
- [What needs to happen next]

Examples

See examples/good-prd.md for reference on well-structured PRDs.