Ground truth: the call UI ships INSIDE cometchat_chat_uikit, but in a second barrel, and the WebRTC engine is a separate package (cometchat_calls_sdk). Every symbol below is catalog-verified against 6.1.0. Exhaustive props: FETCH the twin via ../cometchat-flutter-v6-core/references/docs-map.md (call-features · incoming-call · outgoing-call · call-logs · call-buttons). APPEND to the user's app — additive wiring only.

Companion skills (read first)

cometchat-flutter-v6-core — install, credentials, the settings asset, init→login→render. This skill ASSUMES it (calling rides the SAME init).
cometchat-flutter-v6-components — the widget catalog.
cometchat-flutter-v6-placement — where call surfaces sit in the app shell (incoming calls need only the root navigatorKey — no widget).

Use this skill when

"add voice & video calls", "enable video call", "add call buttons", "show call logs". Precondition: chat already works (core done).

cometchat-flutter-v6-calls

Companion skills (read first)

Use this skill when