EveryJune 5, 20267m

Codex Runs My Inbox Now

TL;DR

Codex cut his inbox to 30 emails by 2:00 p.m. and kept him at inbox zero for 13 weeks: He says that has never happened before, and credits Codex for handling the scheduling, triage, and reply drafting he used to procrastinate on.
The workflow is a custom app he "vibe coded" inside Codex: The app sweeps email a few times a day, turns each message into a card, summarizes it, drafts a reply, and lets him approve or edit actions by talking naturally.
Codex has browser access, app access, and calendar context: In examples, it proposes Brooklyn meeting locations, drafts sponsorship replies for Every, and suggests times for Greg Eisenberg because it can see the calendar.
He uses the same card-and-queue system beyond email: A separate company feed pulls from Notion meeting transcripts and Slack across a 30-person company, then flags what he should review, what Codex should do, and what is already handled.
The system learns from his decisions because everything is stored on the file system: Archive choices, reply patterns, and prompt tweaks are recorded so the app gets better over time at hiding noise and choosing the right next action.
He shows the build prompt and says nontechnical users can make this too: His recipe is to ask Codex to build an end-to-end inbox sweep app, run it in auto-review mode on 5.5 with extra high, and let Codex define a detailed goal plus validation steps.

The Breakdown

Inbox zero for 13 straight weeks is the headline, but the real trick is a Codex-native app that turns every email into a card with a drafted next action, then executes the work after a quick human pass. The same setup now filters company meetings, Slack debates, and follow-ups, so Codex acts less like a chatbot and more like an always-on operator inside the browser.