Each tool has a clearly distinct purpose: credits reads balance, generate_video/generate_image produce different media types, and check_status polls async runs. No two tools can be reasonably confused for one another.

Three of four tools follow a clean verb_noun pattern (generate_video, generate_image, check_status). The outlier is 'credits', a bare noun that breaks the pattern but remains unambiguous.

Four tools is a tight, well-scoped surface for a generation service. Each earns its place: two generators, one async poller required by the async design, and one account query.

The generate-then-poll lifecycle is covered end to end, plus credit awareness. Minor gaps exist (no list/history of past runs, no cancel or delete for an in-flight run), but the core workflow has no dead ends.