initial commit

.agents/skills/bmad-create-prd/data/prd-purpose.md

@@ -0,0 +1,197 @@
+# BMAD PRD Purpose
+
+**The PRD is the top of the required funnel that feeds all subsequent product development work in rhw BMad Method.**
+
+---
+
+## What is a BMAD PRD?
+
+A dual-audience document serving:
+1. **Human Product Managers and builders** - Vision, strategy, stakeholder communication
+2. **LLM Downstream Consumption** - UX Design → Architecture → Epics → Development AI Agents
+
+Each successive document becomes more AI-tailored and granular.
+
+---
+
+## Core Philosophy: Information Density
+
+**High Signal-to-Noise Ratio**
+
+Every sentence must carry information weight. LLMs consume precise, dense content efficiently.
+
+**Anti-Patterns (Eliminate These):**
+- ❌ "The system will allow users to..." → ✅ "Users can..."
+- ❌ "It is important to note that..." → ✅ State the fact directly
+- ❌ "In order to..." → ✅ "To..."
+- ❌ Conversational filler and padding → ✅ Direct, concise statements
+
+**Goal:** Maximum information per word. Zero fluff.
+
+---
+
+## The Traceability Chain
+
+**PRD starts the chain:**
+```
+Vision → Success Criteria → User Journeys → Functional Requirements → (future: User Stories)
+```
+
+**In the PRD, establish:**
+- Vision → Success Criteria alignment
+- Success Criteria → User Journey coverage
+- User Journey → Functional Requirement mapping
+- All requirements traceable to user needs
+
+**Why:** Each downstream artifact (UX, Architecture, Epics, Stories) must trace back to documented user needs and business objectives. This chain ensures we build the right thing.
+
+---
+
+## What Makes Great Functional Requirements?
+
+### FRs are Capabilities, Not Implementation
+
+**Good FR:** "Users can reset their password via email link"
+**Bad FR:** "System sends JWT via email and validates with database" (implementation leakage)
+
+**Good FR:** "Dashboard loads in under 2 seconds for 95th percentile"
+**Bad FR:** "Fast loading time" (subjective, unmeasurable)
+
+### SMART Quality Criteria
+
+**Specific:** Clear, precisely defined capability
+**Measurable:** Quantifiable with test criteria
+**Attainable:** Realistic within constraints
+**Relevant:** Aligns with business objectives
+**Traceable:** Links to source (executive summary or user journey)
+
+### FR Anti-Patterns
+
+**Subjective Adjectives:**
+- ❌ "easy to use", "intuitive", "user-friendly", "fast", "responsive"
+- ✅ Use metrics: "completes task in under 3 clicks", "loads in under 2 seconds"
+
+**Implementation Leakage:**
+- ❌ Technology names, specific libraries, implementation details
+- ✅ Focus on capability and measurable outcomes
+
+**Vague Quantifiers:**
+- ❌ "multiple users", "several options", "various formats"
+- ✅ "up to 100 concurrent users", "3-5 options", "PDF, DOCX, TXT formats"
+
+**Missing Test Criteria:**
+- ❌ "The system shall provide notifications"
+- ✅ "The system shall send email notifications within 30 seconds of trigger event"
+
+---
+
+## What Makes Great Non-Functional Requirements?
+
+### NFRs Must Be Measurable
+
+**Template:**
+```
+"The system shall [metric] [condition] [measurement method]"
+```
+
+**Examples:**
+- ✅ "The system shall respond to API requests in under 200ms for 95th percentile as measured by APM monitoring"
+- ✅ "The system shall maintain 99.9% uptime during business hours as measured by cloud provider SLA"
+- ✅ "The system shall support 10,000 concurrent users as measured by load testing"
+
+### NFR Anti-Patterns
+
+**Unmeasurable Claims:**
+- ❌ "The system shall be scalable" → ✅ "The system shall handle 10x load growth through horizontal scaling"
+- ❌ "High availability required" → ✅ "99.9% uptime as measured by cloud provider SLA"
+
+**Missing Context:**
+- ❌ "Response time under 1 second" → ✅ "API response time under 1 second for 95th percentile under normal load"
+
+---
+
+## Domain-Specific Requirements
+
+**Auto-Detect and Enforce Based on Project Context**
+
+Certain industries have mandatory requirements that must be present:
+
+- **Healthcare:** HIPAA Privacy & Security Rules, PHI encryption, audit logging, MFA
+- **Fintech:** PCI-DSS Level 1, AML/KYC compliance, SOX controls, financial audit trails
+- **GovTech:** NIST framework, Section 508 accessibility (WCAG 2.1 AA), FedRAMP, data residency
+- **E-Commerce:** PCI-DSS for payments, inventory accuracy, tax calculation by jurisdiction
+
+**Why:** Missing these requirements in the PRD means they'll be missed in architecture and implementation, creating expensive rework. During PRD creation there is a step to cover this - during validation we want to make sure it was covered. For this purpose steps will utilize a domain-complexity.csv and project-types.csv.
+
+---
+
+## Document Structure (Markdown, Human-Readable)
+
+### Required Sections
+1. **Executive Summary** - Vision, differentiator, target users
+2. **Success Criteria** - Measurable outcomes (SMART)
+3. **Product Scope** - MVP, Growth, Vision phases
+4. **User Journeys** - Comprehensive coverage
+5. **Domain Requirements** - Industry-specific compliance (if applicable)
+6. **Innovation Analysis** - Competitive differentiation (if applicable)
+7. **Project-Type Requirements** - Platform-specific needs
+8. **Functional Requirements** - Capability contract (FRs)
+9. **Non-Functional Requirements** - Quality attributes (NFRs)
+
+### Formatting for Dual Consumption
+
+**For Humans:**
+- Clear, professional language
+- Logical flow from vision to requirements
+- Easy for stakeholders to review and approve
+
+**For LLMs:**
+- ## Level 2 headers for all main sections (enables extraction)
+- Consistent structure and patterns
+- Precise, testable language
+- High information density
+
+---
+
+## Downstream Impact
+
+**How the PRD Feeds Next Artifacts:**
+
+**UX Design:**
+- User journeys → interaction flows
+- FRs → design requirements
+- Success criteria → UX metrics
+
+**Architecture:**
+- FRs → system capabilities
+- NFRs → architecture decisions
+- Domain requirements → compliance architecture
+- Project-type requirements → platform choices
+
+**Epics & Stories (created after architecture):**
+- FRs → user stories (1 FR could map to 1-3 stories potentially)
+- Acceptance criteria → story acceptance tests
+- Priority → sprint sequencing
+- Traceability → stories map back to vision
+
+**Development AI Agents:**
+- Precise requirements → implementation clarity
+- Test criteria → automated test generation
+- Domain requirements → compliance enforcement
+- Measurable NFRs → performance targets
+
+---
+
+## Summary: What Makes a Great BMAD PRD?
+
+✅ **High Information Density** - Every sentence carries weight, zero fluff
+✅ **Measurable Requirements** - All FRs and NFRs are testable with specific criteria
+✅ **Clear Traceability** - Each requirement links to user need and business objective
+✅ **Domain Awareness** - Industry-specific requirements auto-detected and included
+✅ **Zero Anti-Patterns** - No subjective adjectives, implementation leakage, or vague quantifiers
+✅ **Dual Audience Optimized** - Human-readable AND LLM-consumable
+✅ **Markdown Format** - Professional, clean, accessible to all stakeholders
+
+---
+
+**Remember:** The PRD is the foundation. Quality here ripples through every subsequent phase. A dense, precise, well-traced PRD makes UX design, architecture, epic breakdown, and AI development dramatically more effective.