How to vibe codeMissive

Prerequisites

• Node.jsFree

  Required for running the Next.js runtime and package manager.

• GitHubFree

  Version control and deployment pipeline integration.

• 

  Google Developer ConsoleFree

  Required to configure OAuth credentials and Gmail API access for real email syncing.

AI coding tools

• Claude Code

  Best-in-class coding agent for scaffolding multi-file Next.js architectures and debugging backend synchronization logic.

• Cursor

  Ideal for fine-tuning complex Tailwind CSS layouts, split-pane inbox interfaces, and real-time UI components.

Build guide

1. 01Project Scaffolding & Database Schema

   Initialize the Next.js project with Tailwind CSS, configure better-auth for multi-user authentication, and establish the PostgreSQL schema for organizations, users, shared inboxes, conversations, messages, internal comments, and tasks.

   Scaffold a new Next.js 16 application using App Router, TypeScript, and Tailwind CSS. Install shadcn/ui primitives for layout components. Configure better-auth with email/password and organization plugins. Write a Prisma or Drizzle schema defining relational models for Users, Organizations, Inboxes, Conversations (with fields for subject, status, assignee_id), Messages (supporting both email headers and internal chat types), Comments (for inline commenting on specific message fragments), and Tasks. Set up database migrations pointing to a Neon Postgres instance. Ensure strict TypeScript types across all models.

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2. 02Three-Pane Inbox Layout & Navigation UI

   Build the core desktop-class UI mirroring Missive: left sidebar for inboxes/labels, middle list pane for conversation threads, and right-hand reading/chat pane with support for keyboard shortcuts.

   Build a responsive three-pane layout shell using Tailwind CSS. Left pane: collapsible sidebar listing personal inboxes, team spaces, labels, and shared folders with unread counts. Middle pane: scrollable list of conversation preview cards showing sender name, subject snippet, timestamp, assignment badge, and read status. Right pane: active conversation view displaying the chronological thread of emails and internal chat messages. Implement keyboard navigation shortcuts (e.g., 'j'/'k' for moving up and down, 'e' to archive, 't' to open task drawer) mimicking classic power-user email clients. Ensure smooth state transitions and fixed-height scrolling areas.

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3. 03Real-Time Multiplayer Collaboration & Internal Chat

   Integrate Liveblocks to handle real-time user presence, typing indicators, live cursor positions, and synchronized updating of read states and conversation assignments across active team members.

   Integrate Liveblocks into the Next.js application to power real-time collaboration features. Implement room-based presence for each active conversation thread so team members can see who is currently viewing or typing inside a thread. Create an internal chat component embedded directly below or between email messages within a conversation, supporting @mentions, rich text formatting, and emoji reactions. Build real-time state synchronization using Yjs or Liveblocks storage so that conversation archive status, assignments, and tags update instantly across all connected browser sessions without requiring manual page refreshes.

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4. 04Email Account Integration & Parsing Engine

   Implement Google OAuth and IMAP connection settings allowing users to link external email accounts, syncing inbound messages and rendering HTML/plain text email bodies securely.

   Build an email integration module supporting Google OAuth (Gmail API) and standard IMAP/SMTP server configurations. Create background synchronization workers using Next.js server actions or API routes that poll connected accounts or process webhooks for new inbound messages. Parse incoming MIME structures safely, stripping malicious scripts while preserving safe HTML formatting, inline images, and attachments. Store parsed messages into the PostgreSQL database linked to the appropriate shared inbox and conversation thread. Implement outgoing email dispatch via SMTP/Resend that correctly formats reply threading headers (In-Reply-To, References).

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5. 05Inline Collaborative Drafting & AI Assistant

   Develop the collaborative reply box where multiple team members can co-author a draft in real-time, accompanied by AI-powered drafting and summarization prompts.

   Build a rich-text collaborative reply editor inside the conversation view. Allow multiple team members to lock or co-edit a draft response simultaneously using Liveblocks collaborative text editing primitives. Add an AI assistant dropdown menu powered by the Vercel AI SDK and Anthropic API that allows users to instantly generate draft replies based on conversation history, translate text, or summarize long email chains into concise bullet points. Ensure drafts can be reviewed by peers internally before final sign-off and sending.

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6. 06Task Management & Automation Rules Engine

   Implement native task creation tied to conversation threads, along with a rule builder to automate workflow actions like auto-assigning or auto-labeling incoming messages.

   Build a native task management subsystem embedded within the inbox. Allow users to press 't' or click an action button to turn any email or chat fragment into an assignable task with due dates, priorities, and multiple assignees, viewable in both conversation sidebars and a centralized task list view. Build a rule-building engine UI allowing administrators to define conditional triggers (e.g., if sender domain contains X, apply label Y and assign to team Z) and execute automated actions upon inbound message ingestion. Write robust server-side execution logic for these rules.

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Cost vs paying for Missive