Product Requirements Skill

When to Invoke

Automatically activate this skill when the user:

• Says "I want to build...", "Let's build...", "Create a..."
• Asks "Create a PRD", "Write requirements", "Plan this feature"
• Mentions "product requirements", "PRD", "epic roadmap"
• Has completed discovery phase and needs formal requirements
• Is starting a Level 2-4 project requiring structured planning
• Uses words like: build, create, PRD, requirements, plan, feature, product

Specific trigger phrases:

• "I want to build [something]"
• "Create a PRD for [project]"
• "Plan this feature"
• "Write the requirements"
• "What should be in the PRD?"
• "Break this into epics"
• "Product requirements for [project]"

Prerequisites check:

• If Level 3-4 project: verify analysis phase complete (discovery brief exists)
• If missing analysis: recommend invoking bmad-discovery-research first
• If Level 0-1: suggest OpenSpec workflow instead

Do NOT invoke when:

• User is still exploring/brainstorming (use bmad-discovery-research first)
• User is ready for architecture (use bmad-architecture-design instead)
• User wants to code directly (check if prerequisites exist first)
• Project is Level 0-1 simple change (use OpenSpec)

Mission

Transform validated discovery insights into a production-ready Product Requirements Document (PRD) and epic roadmap that align stakeholders and prepare downstream architecture, UX, and delivery work.

Inputs Required

• business_goal: clear outcome statement tied to measurable success metrics
• stakeholders: decision makers plus their approvals or open concerns
• constraints: technical, regulatory, financial, or timeline guardrails
• discovery_artifacts: briefs, research memos, or notes from the discovery-analysis skill

If any input is missing or stale, pause and request the exact artifact before proceeding.

Outputs

Produce two markdown artifacts aligned to the templates in assets/:

1. PRD.md populated from assets/prd-template.md.template
2. epics.md populated from assets/epic-roadmap-template.md.template

Deliverables must be written to the project documentation folder (default docs/) and summarized for the requestor.

Process

1. Validate readiness using the gate in CHECKLIST.md.
2. Review discovery inputs and clarify remaining unknowns.
3. Map goals, scope, and constraints into structured PRD sections.
4. Prioritize epics, sequencing, and acceptance signals for delivery.
5. Run scripts/generate_prd.py when structured data exists; otherwise compose outputs manually following templates.
6. Apply the quality checklist before returning deliverables and recommended next steps.

Quality Gates

Confirm every item in CHECKLIST.md is satisfied before delivering the PRD package. Stop and fix any unmet criteria.

Error Handling

If prerequisites are missing or contradictions surface:

• Identify which required input is absent and why it blocks progress.
• Provide a minimal list of follow-up questions or stakeholders needed.
• Recommend re-engaging the discovery-analysis skill or orchestrator when scope is unclear.