Building an AI-Native Inbox Workflow in Codex
the gist
The author uses a custom, Codex-native application to process emails and company communications via an agent-driven card interface that automates drafting, scheduling, and archiving.
The Inbox Automation Workflow
The author manages email and internal communications by using a custom-built application within the Codex in-app browser. The application sweeps the inbox and generates individual cards for each email, providing a summary and a proposed next action, such as a draft reply or a calendar invite. By interacting with these cards, the user can approve, modify, or archive items, allowing the agent to execute the final steps. This system extends beyond email to a company feed that aggregates Slack messages and meeting transcriptions from Notion, enabling the user to review and delegate tasks across multiple channels from a single interface.
Implementation and Learning
The application is built to be Codex-native, meaning it maintains state on the local file system and renders views directly within the Codex environment. The system records every decision made during the review process, which allows the agent to refine its future performance. Over time, the agent learns the user's preferences for archiving, prioritizing, or drafting responses, effectively compounding the user's decision-making logic. The author suggests using the provided prompt to bootstrap the application, which instructs the agent to connect to email via the Cora CLI or Gmail, manage state locally, and implement a validation loop to ensure the app functions correctly.