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The Startup Ideas Podcast

The OpenAI Launch Nobody's Talking About (ChatGPT Skills)

22 Dec 2025

Transcription

Chapter 1: What are the new Skills for Codex launched by OpenAI?

0.217 - 54.804 Greg Isenberg

What's up, everyone? So you can actually go and build a mobile app in 2026. And that's today's episode. So the news item I want to talk about that I don't think a lot of people are talking about is quietly OpenAI has launched skills. So we've seen Anthropic and Claude skills. A lot of people talking about that, including myself, how amazing it is.

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Chapter 2: How does Face Yoga represent a trending app opportunity?

55.445 - 66.521 Greg Isenberg

But quietly we have Codex now officially support skills. Skills are reusable bundles of instructions, scripts, and resources that help Codex complete specific tasks.

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Chapter 3: Which to-do app does the host recommend and why?

67.022 - 69.205 Greg Isenberg

You can call a skill directly.

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Chapter 4: What is the startup idea for a 'Call-an-Expert' service?

69.185 - 97.93 Greg Isenberg

with dollar sign, dot skill name, or let Codex choose the right one based on your prompts. So what's really cool is they're just following the agent skills IO standard, the one by Anthropic. A skill is just a folder, basically a skill.md file for instructions and metadata. And All of a sudden, your ChatGBT and Codex has just become a lot more valuable.

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Chapter 5: What is the 6-step framework for launching a viral mobile app?

97.97 - 128.482 Greg Isenberg

So there's tons of ways that you're going to be able to use agent skills within Codex or ChatGBT. It gives some examples here in the official announcement. some technical stuff because it's talking about Codex specifically, but a Notion spec to implementation skill, a have Codex read and update your linear tickets skill, have Codex automatically fix your GitHub CI failures skill.

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128.522 - 152.053 Greg Isenberg

It does a lot of things and I think a lot of people don't really understand the difference between what is a skill, what is a sub-agent, and what is an MCP. So just to give everyone a little bit of a foundation, a skill is like a written guide that tells you or Codex or ChatGPT exactly how to do a specific task.

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152.474 - 170.55 Greg Isenberg

For example, analyze spreadsheets this way or write emails in this voice or design the interface like this so you can basically call and reuse the same skill again and it allows for a more consistent output. So what is a subagent?

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170.57 - 193.423 Greg Isenberg

Well, a subagent is making a few extra copies of the LLM that you're using, Clode or Codex or ChatGPT, each with its own job, such as you review the code, you write tests, you update docs. The main job the main LLM can hand out pieces of a big task to help these workers. So work happens in parallel and stays organized.

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193.764 - 206.648 Greg Isenberg

And an MCP is just a universal power plug that lets the LLM access other tools. Like we saw that it's going to update your linear tickets. Well, it needs access to that, and that's through MCPs.

Chapter 6: How can you warm up your social media account for app validation?

207.149 - 238.283 Greg Isenberg

So highly encourage everyone kind of I'll include it in the show notes. It kind of explains a little more about what agent skills are. It says here, Agent skills are folders of instructions, scripts, and resources that can discover and use to do more accurately and efficiently.

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Chapter 7: What are the essential elements to design a viral app idea?

238.323 - 264.268 Greg Isenberg

And who doesn't want that? It says what an agent skill can enable. Domain expertise, so package specialized knowledge into reusable instructions from legal review processes to data pipelines. New capabilities where you can give agents new capabilities like creating presentations or building MCP servers. Repeatable workflows, interoperability. There's a lot there.

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264.308 - 268.414 Greg Isenberg

There's some example skills that they give as well on GitHub.

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Chapter 8: What steps should you follow to build and launch an MVP?

268.394 - 285.964 Greg Isenberg

And I just think that not a lot of people are talking about it. So I had to let you know about it. So that's the one news item that I think you should be paying attention to that could be super valuable for you in 2026.

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286.805 - 305.05 Unknown

If you have a business that's doing at least $50,000 a month in revenue, I've got something interesting for you. It's called Offline Mode. It's a two-day event that me and my team are putting on at a 20,000 plus foot square foot mansion. Yes, this is what it looks like on January 23rd and January 24th in Fort Lauderdale, Florida.

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305.511 - 327.397 Unknown

I'll include a link in the description if you're interested in coming. But it's basically for people who have a business that's kind of cranking, but they really want to put it in rocket ship mode. They want to create a set of businesses that generate tons of money, tons of cash flow, tons of product market fit, tons of impact, but they're not just quite there yet.

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327.597 - 345.195 Unknown

It's also about making your business AI first, how you can actually build not just one product but multiple products, and you're going to leave with tactical answers to your questions. If that's you and this sounds interesting, I'll see you there.

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346.087 - 375.79 Greg Isenberg

So that's the news item. The trend that I've been hearing about is something called face yoga. I don't know if you've heard about it, but if you go, I'm going to go onto Idea Browser and just check the trend. Face yoga. I'm sure you've heard of yoga, obviously. But people are doing these face yoga techniques to get slimmer faces.

376.731 - 407.197 Greg Isenberg

And there's a lot of opportunity here if you want to create different apps because there are a ton of opportunities in yoga. There's people making millions of dollars a year with these yoga apps. But face yoga is kind of a sub-niche that I think is interesting and is getting a ton of volume. You're seeing 110,000 searches in August. The average CPC is about a dollar. The competition is low.

408.86 - 430.903 Greg Isenberg

I think there's an opportunity to build products, apps, you know, around face workouts, facial exercises, face yoga, face lifting yoga exercises, jawline trainer, face slimming exercises. So there's a lot of opportunity here, a trend I never heard of, but face yoga.

431.44 - 456.912 Greg Isenberg

Face yoga involves facial exercises, stretches, massage to tone facial muscles, potentially reducing signs of aging like wrinkles and sagging by firming the skin, much like body yoga strengthens muscles, offering a natural and holistic way to improve facial definition. You can even see here people are creating YouTube videos on it. 10-minute cheek, lift, face yoga tone.

457.132 - 476.175 Greg Isenberg

There's an opportunity to build an app that's just some of these exercises and you can charge for it. Or make it free and do advertising or sponsorship. Face yoga, a trend I have recently heard of that, hey, might get your creative juices flowing.

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