{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "$id": "https://bmad-spec/schemas/product_requirements.schema.json",
  "title": "Product Requirements Document",
  "type": "object",
  "additionalProperties": false,
  "required": [
    "title",
    "overview",
    "personas",
    "features",
    "non_functional_requirements",
    "constraints"
  ],
  "properties": {
    "title": { "type": "string", "minLength": 1 },
    "overview": { "type": "string", "minLength": 1 },
    "personas": {
      "type": "array",
      "minItems": 1,
      "items": {
        "type": "object",
        "additionalProperties": false,
        "required": ["name", "goals", "pain_points"],
        "properties": {
          "name": { "type": "string" },
          "goals": { "type": "array", "items": { "type": "string" } },
          "pain_points": { "type": "array", "items": { "type": "string" } }
        }
      }
    },
    "features": {
      "type": "array",
      "minItems": 1,
      "items": {
        "type": "object",
        "additionalProperties": false,
        "required": ["id", "title", "description", "acceptance_criteria", "priority"],
        "properties": {
          "id": { "type": "string", "pattern": "^(FR|NFR)-[0-9]{3}$" },
          "title": { "type": "string" },
          "description": { "type": "string" },
          "acceptance_criteria": { "type": "array", "minItems": 1, "items": { "type": "string" } },
          "priority": { "type": "string", "enum": ["must", "should", "could"] },
          "dependencies": { "type": "array", "items": { "type": "string" } }
        }
      }
    },
    "non_functional_requirements": { "type": "array", "items": { "type": "string" } },
    "constraints": { "type": "array", "items": { "type": "string" } }
  }
}