{
  "$schema": "https://json-schema.org/draft-07/schema#",
  "title": "Petdex /built-with registry",
  "description": "Curated list of OSS projects that build on top of Petdex (gallery, CLI, API, or pet format with explicit attribution). Submission via PR.",
  "type": "object",
  "required": ["version", "lastUpdated", "categories", "projects"],
  "properties": {
    "version": { "type": "integer", "minimum": 1 },
    "lastUpdated": { "type": "string", "format": "date" },
    "categories": {
      "type": "object",
      "additionalProperties": {
        "type": "object",
        "required": ["label", "description"],
        "properties": {
          "label": { "type": "string", "maxLength": 40 },
          "description": { "type": "string", "maxLength": 160 }
        }
      }
    },
    "projects": {
      "type": "array",
      "items": {
        "type": "object",
        "required": [
          "slug",
          "name",
          "tagline",
          "category",
          "repo",
          "stars",
          "addedAt",
          "evidence",
          "screenshot"
        ],
        "properties": {
          "slug": {
            "type": "string",
            "pattern": "^[a-z0-9-]+$",
            "description": "Unique kebab-case ID. Used as filename for the screenshot."
          },
          "name": { "type": "string", "maxLength": 40 },
          "tagline": { "type": "string", "maxLength": 200 },
          "category": {
            "type": "string",
            "enum": [
              "desktop-companion",
              "wellness",
              "wearable",
              "sdk",
              "bundled",
              "pet-creator"
            ]
          },
          "repo": {
            "type": "string",
            "pattern": "^[A-Za-z0-9_.-]+/[A-Za-z0-9_.-]+$",
            "description": "GitHub owner/name."
          },
          "homepage": {
            "type": ["string", "null"],
            "pattern": "^https?://",
            "description": "Public homepage URL. Must use http or https scheme."
          },
          "stars": { "type": "integer", "minimum": 0 },
          "language": { "type": ["string", "null"] },
          "platforms": {
            "type": "array",
            "items": { "type": "string" }
          },
          "addedAt": { "type": "string", "format": "date" },
          "evidence": {
            "type": "object",
            "required": ["type", "quote", "url"],
            "properties": {
              "type": {
                "type": "string",
                "enum": ["readme", "code", "repo-name"],
                "description": "Where the Petdex attribution lives."
              },
              "quote": {
                "type": "string",
                "maxLength": 400,
                "description": "Verbatim quote proving Petdex usage."
              },
              "url": {
                "type": "string",
                "pattern": "^https?://",
                "description": "Link to the README or source file containing the quote. Must use http or https scheme."
              }
            }
          },
          "screenshot": {
            "type": "string",
            "pattern": "^/built-with/[a-z0-9-]+\\.(png|webp)$",
            "description": "Path under /public to the project screenshot. Captured at 1280x720 viewport via agent-browser."
          }
        }
      }
    }
  }
}