@FinanceYF5: How to Maximize the Value of Codex 1/ Jason Liu Redefines Knowledge Work with Codex Codex team DX engineer, Instructor founder jason says: Codex is not just about writing code. It has become a hub that crosses tool boundaries to handle slides, PDFs, ...

X AI KOLs Following Tools

Summary

Jason Liu shared how to use Codex as a central hub to handle knowledge work across tools, such as slides, PDFs, spreadsheets, to maximize its value.

🧵How to Maximize the Value of Codex 1/🧭 Jason Liu Redefines Knowledge Work with Codex Codex team DX engineer, Instructor founder jason says: Codex is not just about writing code It has become a central hub for handling slides, PDFs, and spreadsheets across tool boundaries. 👇 https://t.co/UwrB8wkCAC
Original Article
View Cached Full Text

Cached at: 05/18/26, 10:30 AM

🧵How to Maximize the Value of Codex

1/🧭 Jason Liu Redefines Knowledge Work with Codex

A Codex team DX engineer and founder of Instructor, Jason says: Codex is not just about writing code

It has become the core hub for handling slides, PDFs, and spreadsheets across tool boundaries. 👇 https://t.co/UwrB8wkCAC

2/ He pins a thread for each core workflow

Staff threads, Agent SDK, open-source Codex… these are not chat logs,

but “persistent threads” that accumulate months of preferences, decisions, and context — the agent never needs to start over when it returns.

3/ The value of voice input isn’t speed, it’s rawness

The agent gets Jason’s unedited raw thoughts, not a polished version.

“I remember Ben mentioned this on Slack, go check it out” — typing is too cumbersome, but saying it out loud is incredibly natural.

4/ The “pivot” feature lets him direct while watching, no waiting

While previewing a website, he says aloud: shrink it, there’s a typo, spacing is off, submit a PR, wait for deployment, send to Slack for review…

The agent executes while he’s already moved on; a queue has formed.

5/ He built his memory system on top of an Obsidian Vault

The repository stores code, the Vault stores dynamic context: people, decisions, project status.

The agent updates the Vault, Jason reviews the diff — this audit step is critical to prevent memory bias from silently accumulating across conversations.

6/ Heartbeat mechanism: letting loops run automatically across tool boundaries

His staff thread checks Slack and Gmail every 30 minutes, with draft replies already waiting in his drafts.

Animation project case: heartbeat monitors Slack feedback → re-render → auto-reply tagging reviewers. He’s not there, but the loop keeps running.

7/ The only change he truly cares about comes down to one sentence:

Work shouldn’t pause when you step away.

Threads keep running, memory keeps updating, feedback keeps being processed — even while you take a shower, the refund is already done.

This is what an AI agent should look like.

Full content:

That’s all, original author @jxnlco

If you like this topic:

  1. Follow me (@FinanceYF5)
  2. Like + retweet the first post below

Similar Articles

Codex is becoming a productivity tool for everyone

OpenAI Blog

OpenAI's new report shows Codex expanding beyond coding to become a productivity tool for knowledge workers, with over 5M weekly active users and rapid growth in non-developer tasks like data analysis and workflow automation.

Codex-maxxing

Hacker News Top

Jason Liu shares how he uses OpenAI's Codex for knowledge work beyond coding, leveraging durable threads, voice input, and steering to integrate coding agents into his broader workflow.

@FinanceYF5: Wow, the whiteboard feature in Codex is absolutely mind-blowing. It can directly grab thumbnails from YouTube or any website and put them on the whiteboard, allowing you to quickly organize various concepts. Each image is an independent element, and you can freely mix and match them using Codex's built-in GPT-Image 2 model.

X AI KOLs Following

Codex's whiteboard feature can grab thumbnails from YouTube or any website and freely combine them using the built-in GPT-Image 2 model, making it easy to quickly organize concepts.

How finance teams use Codex

OpenAI Blog

OpenAI highlights how finance teams can leverage Codex to automate tasks like generating monthly business review narratives and cleaning up financial models, integrating with tools like Excel and Slack to improve efficiency.