Recoup — Add Artist

Bring a new artist into the box: create the account, enrich it, and scaffold their workspace. Driven by a checklist so the long chain is resumable.

The 8-call onboarding chain (drive from the RECOUP.md checklist)

Long chains run from prose drop steps, so drive from the RECOUP.md checklist: scaffold it first (frontmatter holds captured values; body holds the unchecked steps), tick + persist after each step — the file IS the workflow state, resumable from the first unchecked box. Don't run under an agent+ account (data gets orphaned). The 8 calls:

1. POST /api/artists {name, organization_id} → capture account_id.
2. GET /api/spotify/search → best match → id, external_urls.spotify, images[0].
3. PATCH /api/artists/{id} with image + profileUrls:{SPOTIFY} (UPPERCASE keys).
4. Structured research (retry transient misses): /research/lookup?spotifyId= → songstats_artist_id, then /research/profile|career|playlists + /research/web.
5. Spotify catalog (topTracks, albums, album) → write releases/{slug}/RELEASE.md per album + releases/top-tracks.md.
6. Web search for socials (ig/tiktok/twitter/youtube).
7. PATCH /api/artists/{id} with discovered profileUrls (only platforms found).
8. Synthesize a ## Knowledge base section into RECOUP.md.

Run in order; don't continue past a 4xx/5xx without recovery. Uses recoup-platform-api-access for the call shapes.

Guardrails

• The file is the state — tick + persist each step or a fresh turn redoes/skips work.
• No placeholder data in artist files — real content or leave the section out.
• Never invent a roster/artist — confirm via recoup-platform-api-access first; an empty filesystem is not an empty roster.