DocumentationA short, opinionated guide to using Cairn well. Start with the daily rhythm, then layer in habits and goals.Getting startedSign in, onboard, and learn the daily rhythm.HabitsStreaks, cadence, and the weekly review loop.GoalsLong-horizon goals with milestones and at-risk nudges.AssistantWhat the AI can do — and what it won't.API referenceProgrammatic access, webhooks, and OAuth (coming).