{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://uipotion.com/schema/categories/patterns.schema.json",
  "title": "UI Potion Category Schema — Patterns (v1)",
  "description": "Extends the base schema for UI/UX engineering patterns (rules, guidelines, anti-patterns). Accessibility guidance is recommended via patternSpec.accessibility.",
  "allOf": [
    {
      "$ref": "https://uipotion.com/schema/potion.base.schema.json"
    },
    {
      "type": "object",
      "additionalProperties": true,
      "required": [
        "patternSpec",
        "testingChecklist"
      ],
      "properties": {
        "category": {
          "const": "patterns"
        },
        "patternSpec": {
          "type": "object",
          "additionalProperties": false,
          "required": [
            "problem",
            "solution",
            "do",
            "dont",
            "examples",
            "checklist"
          ],
          "properties": {
            "problem": {
              "type": "string",
              "minLength": 1
            },
            "solution": {
              "type": "string",
              "minLength": 1
            },
            "do": {
              "type": "array",
              "minItems": 1,
              "items": {
                "type": "string",
                "minLength": 1
              }
            },
            "dont": {
              "type": "array",
              "minItems": 1,
              "items": {
                "type": "string",
                "minLength": 1
              }
            },
            "examples": {
              "type": "array",
              "minItems": 1,
              "items": {
                "type": "string",
                "minLength": 1
              }
            },
            "antiPatterns": {
              "type": "array",
              "items": {
                "type": "string"
              }
            },
            "checklist": {
              "type": "array",
              "minItems": 1,
              "items": {
                "type": "string",
                "minLength": 1
              }
            },
            "accessibility": {
              "$ref": "https://uipotion.com/schema/contracts/accessibility.contract.schema.json"
            }
          }
        }
      }
    }
  ]
}