Prd To Ralph

PRD to Ralph JSON Converter

Convert PRD/requirements into structured JSON optimized for Ralph Wiggum autonomous coding loops.

Overview

Ralph Wiggum workflows iterate autonomously toward success criteria. This skill converts human-readable PRDs into machine-parseable JSON with:

• Dependency-ordered user stories (schema before API before UI)
• Testable acceptance criteria
• Standard quality gates on every story

When to Use

• Converting PRD/requirements for Ralph autonomous workflow
• Preparing features for autonomous iteration
• Need structured JSON from prose requirements

When NOT to Use

• Already have JSON in correct format
• Single-task changes (no stories needed)
• Non-coding requirements

Output Schema

{
  "project": "Project Name",
  "branchName": "ralph/feature-name-kebab-case",
  "description": "Feature description from PRD",
  "userStories": [
    {
      "id": "US-001",
      "title": "Story title",
      "description": "As a [user], I want [feature] so that [benefit]",
      "acceptanceCriteria": [
        "Criterion from PRD",
        "Another criterion",
        "Typecheck passes",
        "Build succeeds",
        "No lint errors",
        "Tests pass"
      ],
      "priority": 1,
      "passes": false,
      "notes": ""
    }
  ]
}

Workflow

Phase 1: Extract Project Metadata

1. Project name: Use PRD title or main heading
2. Branch name: Convert to kebab-case with ralph/ prefix
3. Description: First paragraph or intro section

Phase 2: Identify User Stories

Extract stories from:

• Explicit "User Story" sections
• Numbered requirements
• Feature bullet points
• Prose paragraphs describing functionality

For each story, create:

• Unique ID (US-001, US-002, etc.)
• Title (short, descriptive)
• Description (user story format: As a... I want... so that...)
• Acceptance criteria from PRD content

Phase 3: Classify Story Layer

CRITICAL: Classify each story into exactly one layer:

Detection rules:

• Schema: Creates/modifies database structure
• Backend: Implements server logic or API endpoints
• Frontend: User-facing interface components
• Dashboard: Admin/analytics views (depends on everything else)

Phase 4: Order by Dependency

MANDATORY: Reorder stories so dependencies come first.

Priority 1: Schema/Database stories
Priority 2: Backend/API stories
Priority 3: Frontend/UI stories
Priority 4: Dashboard/Admin stories

Within same layer: Maintain original PRD order.

NEVER output stories in PRD order if that violates dependency order.

Phase 5: Add Standard Criteria

MANDATORY: Append these 4 criteria to EVERY story:

"acceptanceCriteria": [
  "...criteria from PRD...",
  "Typecheck passes",
  "Build succeeds",
  "No lint errors",
  "Tests pass"
]

No exceptions. Every story gets all 4 standard criteria.

Phase 6: Generate JSON

Output valid JSON with:

• All required fields populated
• passes: false for all stories
• notes: "" empty string
• Stories sorted by priority (1 → 2 → 3 → 4)

Phase 7: Validate

Before outputting, verify:

• Stories ordered by dependency (schema → API → UI → dashboard)
• All 4 standard criteria present on every story
• Valid JSON syntax
• Branch name is kebab-case
• All required fields present

Dependency Detection Patterns

Schema/Database (Priority 1)

- "create table", "add column", "migration"
- "database schema", "data model"
- "foreign key", "index", "constraint"
- "notifications table", "users table"
- Any mention of table structure or fields

Backend/API (Priority 2)

- "API endpoint", "REST", "GraphQL"
- "GET/POST/PATCH/DELETE /api/"
- "controller", "handler", "service"
- "server action", "backend logic"
- "authentication", "authorization" (server-side)

Frontend/UI (Priority 3)

- "component", "page", "view"
- "button", "form", "modal", "dropdown"
- "click", "hover", "display"
- "header", "footer", "sidebar"
- "user interface", "UI"

Dashboard/Admin (Priority 4)

- "dashboard", "admin panel"
- "metrics", "analytics", "reports"
- "monitoring", "management view"
- "aggregate", "statistics"

Common Mistakes

Red Flags - STOP and Fix

• UI story has priority 1 (should be 3+)
• Schema story has priority 3+ (should be 1)
• Missing "Typecheck passes" criterion
• Stories not sorted by priority number
• Multiple stories with same priority across different layers

Example Transformation

Input PRD:

# Notification System

## Stories
1. Notification Bell UI - show bell with unread count
2. Notification API - GET/POST endpoints
3. Notification Schema - create notifications table

Output JSON:

{
  "project": "Notification System",
  "branchName": "ralph/notification-system",
  "description": "Notification system for real-time alerts",
  "userStories": [
    {
      "id": "US-001",
      "title": "Notification Schema",
      "description": "As a developer, I want a notifications table so that notification data can be persisted",
      "acceptanceCriteria": [
        "Notifications table created with required fields",
        "Typecheck passes",
        "Build succeeds",
        "No lint errors",
        "Tests pass"
      ],
      "priority": 1,
      "passes": false,
      "notes": ""
    },
    {
      "id": "US-002",
      "title": "Notification API",
      "description": "As a developer, I want API endpoints so that the frontend can access notifications",
      "acceptanceCriteria": [
        "GET endpoint returns user notifications",
        "POST endpoint creates notifications",
        "Typecheck passes",
        "Build succeeds",
        "No lint errors",
        "Tests pass"
      ],
      "priority": 2,
      "passes": false,
      "notes": ""
    },
    {
      "id": "US-003",
      "title": "Notification Bell UI",
      "description": "As a user, I want a notification bell so that I can see my unread notifications",
      "acceptanceCriteria": [
        "Bell icon displayed in header",
        "Unread count badge shown",
        "Typecheck passes",
        "Build succeeds",
        "No lint errors",
        "Tests pass"
      ],
      "priority": 3,
      "passes": false,
      "notes": ""
    }
  ]
}

Note: Stories reordered from PRD (UI→API→Schema) to dependency order (Schema→API→UI).