{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "title": "Package Registry Entry",
  "description": "Package from npm, PyPI, crates.io, etc.",
  "type": "object",
  "properties": {
    "registry": {
      "type": "string",
      "description": "The package registry this entry comes from. Commonly found in: npmjs.com/package, pypi.org/project, crates.io/crates.",
      "enum": ["npm", "pypi", "crates_io", "rubygems", "packagist", "nuget", "maven", "go_modules", "other"]
    },
    "package_name": {
      "type": "string",
      "description": "Name of the package as listed in the registry."
    },
    "package_version": {
      "type": "string",
      "description": "Version of the package this record describes."
    },
    "latest_version": {
      "type": "string",
      "description": "The latest stable version available in the registry."
    },
    "description": {
      "type": "string",
      "description": "Short description of the package."
    },
    "homepage_url": {
      "type": "string",
      "description": "Homepage URL for the package."
    },
    "repository_url": {
      "type": "string",
      "description": "Source repository URL (e.g., GitHub link)."
    },
    "license": {
      "type": "string",
      "description": "SPDX license identifier or license name."
    },
    "keywords": {
      "type": "array",
      "description": "Keywords or tags associated with the package.",
      "items": {
        "type": "string"
      }
    },
    "author_name": {
      "type": "string",
      "description": "Name of the primary author."
    },
    "author_email": {
      "type": "string",
      "description": "Email of the primary author."
    },
    "maintainers": {
      "type": "array",
      "description": "List of maintainer usernames or names.",
      "items": {
        "type": "string"
      }
    },
    "dependencies": {
      "type": "array",
      "description": "List of runtime dependencies.",
      "items": {
        "type": "string"
      }
    },
    "dev_dependencies": {
      "type": "array",
      "description": "List of development dependencies.",
      "items": {
        "type": "string"
      }
    },
    "weekly_downloads": {
      "type": "number",
      "description": "Number of downloads in the past 7 days."
    },
    "total_downloads": {
      "type": "number",
      "description": "Total all-time download count."
    },
    "dependent_packages_count": {
      "type": "number",
      "description": "Number of packages that depend on this package."
    },
    "github_stars": {
      "type": "number",
      "description": "GitHub star count for the linked repository."
    },
    "open_issues_count": {
      "type": "number",
      "description": "Number of open issues on the repository."
    },
    "first_published_at": {
      "type": "string",
      "format": "date-time",
      "description": "ISO 8601 datetime when the package was first published."
    },
    "last_published_at": {
      "type": "string",
      "format": "date-time",
      "description": "ISO 8601 datetime of the most recent release."
    },
    "deprecated": {
      "type": "boolean",
      "description": "Whether the package has been marked as deprecated."
    },
    "deprecation_message": {
      "type": "string",
      "description": "Message explaining why or what to migrate to."
    },
    "page_title": {
      "type": "string",
      "description": "Title of the source page. Tabstack auto-fills this from page metadata when left empty."
    },
    "favicon": {
      "type": "string",
      "format": "uri",
      "description": "Favicon URL of the source page. Tabstack auto-fills this from page metadata when left empty."
    }
  },
  "required": ["registry", "package_name", "package_version"]
}