Update to Thumbnail Lab

{
  "description": "Create and refine video thumbnails with Thumbnail Lab. Use for the supported media workflow described below.",
  "included_files": [],
  "name": "thumbnail-lab",
  "skill_md_contents": "---\nname: thumbnail-lab\ndescription: Create and refine video thumbnails with Thumbnail Lab. Use for the supported media workflow described below.\n---\n\nUse thumbnail_variants with one to three distinct concepts and the same source image. Use thumbnail_refine for a selected real image and requested changes. Ask for a brief or changes when missing. Never promise engagement; check headline spelling and factual claims.\n\nUse only the connected thumbnail-lab MCP tools. Pass a genuine chat attachment in image when available, otherwise an actual HTTPS image URL. Never invent attachment references or media. If tools are unavailable, ask the user to enable this connection; do not silently substitute another generator. Do not download or execute external code.\n\nShow the returned inline widget and its real media. Do not report completion without an actual result. Reopen saved media with the preview tool and the generation ID from the returned media URL. Never automatically retry an uncertain generation. Keep completed results when only part of a set completes.\n\n## Guest access and optional account linking\n\nStart by calling the workflow tools directly. Do not request account linking before using the anonymous daily image/video allowance. Guests share 100 image/video outputs per host guest identity per UTC day; each image variation counts separately. Only offer account linking when the tool returns an authentication challenge or the user explicitly wants to use account credits. Never invent a guest identifier or bypass a quota response. Preserve existing attachment requirements and uncertain-job retry safeguards. Account linking accesses existing account entitlements. Do not list plans or credit packs, promote digital upgrades, or create checkout links in the plugin.\n"
}