List attached batches
List batches attached to an Extract chat.
Authorizations
Organisation API key from Settings → API / /api/keys/. The secret is
shown once. Send Authorization: Bearer sk-abacus-…. One active key
per organisation. Ingest (/api/v2/ingest/*) refuses API keys — that
surface is Auth0-only with ingest:read / ingest:write scopes.
Path Parameters
Response
Surface the attaching user's email or None if user was deleted.
attached_by is SET_NULL on user delete -- we keep the join
row alive even after the user is gone, so this returns None
when the attacher account no longer exists.
Render mode for BatchExtractionProvider. 'full' renders the entire grid (batches over the size limit still downshift to summary); 'summary' renders schema + a small sample + a query_batch_data SQL pointer; 'schema_only' renders schema + pointer with no rows.

