Every count stops at 10000 and says so (capped: true). The filters are the list's. shippedToday counts the shipments recorded on the caller day (timezone, default UTC), canceled ones excluded. No navigation: the portal has it in admin-api.

Scope: channel:read, channel:write, fulfillment:write, shipments:write or admin. A permission group made before the Channel API scopes existed grants it as fulfillment-orders:manage.

Idempotency: not keyed; the request itself is safe to repeat.

Rate limit: read class, 6,000 requests per minute per tenant by default (write class 1,200). Every response carries X-RateLimit-Limit, X-RateLimit-Remaining and X-RateLimit-Reset; a refusal is 429 rate_limited with Retry-After.