Missive Missive is a collaborative email and messaging platform. It's used by teams to manage shared inboxes, discuss emails internally, and handle customer support or sales communications more efficiently. Official docs: https://missive.com/open-api Missive Overview - Conversation - Participant - Message - Contact - Label Use action names and parameters as needed. Working with Missive This skill uses the Membrane CLI to interact with Missive. Membrane handles authentication and credentials refresh automatically — so you can focus on the integration logic rather than auth plumbing. Install th…