Vet a creator

Vet the creator <name, handle or profile links> for a possible brand partnership with <brand>.

For each platform where they have an account (ask me for any handle you can't find):
- Fetch the public profile: audience size, verification, bio, links and whether the account is private.
- Fetch their recent posts, newest first, covering about the last three months. Stop paging once the posts are older than that.

Then report:
- Who they are and what they post about, in a few sentences.
- Posting frequency, and how it changed over the period.
- Engagement: average and median views, likes and comments per post, and engagement relative to audience size. Point out posts far above or below their usual numbers.
- Brand safety: topics, language or partnerships that could conflict with <brand>, quoting the posts.
- Past sponsorships you can see (paid partnership labels, #ad, discount codes).
- A short recommendation, with the facts it rests on.

Mark anything the data doesn't show as unknown instead of guessing.

Get the data from SocialTap. If the SocialTap MCP server is connected, use its tools; otherwise call the REST API at https://staging.socialtap.dev with the API key from the SOCIALTAP_API_KEY environment variable in the x-api-key header. Read https://staging.socialtap.dev/docs/agents/index.md before the first call. The endpoints, by ID:
- tiktok.profile: GET /v1/tiktok/profile, TikTok Profile API. Docs: https://staging.socialtap.dev/docs/reference/tiktok/profile/index.md
- tiktok.posts: GET /v1/tiktok/posts, TikTok Posts API. Docs: https://staging.socialtap.dev/docs/reference/tiktok/posts/index.md
- instagram.profile: GET /v1/instagram/profile, Instagram Profile API. Docs: https://staging.socialtap.dev/docs/reference/instagram/profile/index.md
- instagram.posts: GET /v1/instagram/posts, Instagram Posts API. Docs: https://staging.socialtap.dev/docs/reference/instagram/posts/index.md
- youtube.profile: GET /v1/youtube/profile, YouTube Channel API. Docs: https://staging.socialtap.dev/docs/reference/youtube/profile/index.md
- youtube.posts: GET /v1/youtube/posts, YouTube Channel Videos API. Docs: https://staging.socialtap.dev/docs/reference/youtube/posts/index.md