The Startup Ideas Podcast

Episode: I fixed Claude Code for you in 30 seconds

Host: Greg Isenberg
Guest: Matt Van Horn, founder of "Last 30 Days"
Date: February 4, 2026

Episode Overview

This episode dives into "Last 30 Days," a new Claude Code skill designed to supercharge research and prompting using trending data from X (formerly Twitter), Reddit, and across the web. Host Greg Isenberg welcomes founder Matt Van Horn to demo the tool. Listeners learn how "Last 30 Days" leverages real-time web chatter to help anyone—from builders to marketers—become an expert quickly, discover timely frameworks, and generate highly relevant outputs in Claude Code.

Key Topics & Discussion Points

1. What is “Last 30 Days”? (00:00–01:22)

• Purpose:
  "Last 30 Days" is a Claude Code skill that enables users to research any topic using data exclusively from the past month, drawn from X, Reddit, and the web.

• Superpower for Users:
  It gives users updated knowledge and trends, making their Claude prompts more relevant and insightful.

  “They will have a new superpower in Claude code. …It’s gonna search X, Twitter and the web for only things that have happened in the last 30 days and give you a great result and help you be expert.”
  —Matt Van Horn (00:56)

2. Why Build This Tool? (02:27–03:52)

• Rapid Pace of AI & Internet Trends:
  Matt wanted a way to quickly absorb fast-moving developments, like learning "kung fu" Matrix-style for any topic.

• Practical Need:
  Tracking and synthesizing conversations across platforms was too time-consuming without an automated skills layer.

  “I wanted a tool that gives you superpowers to be able to just become expert on any topic based on what's happening on Reddit, X and the web very, very quickly.”
  —Matt Van Horn (02:35)

3. How Does “Last 30 Days” Work? (01:32–05:00)

• Demo Walkthroughs:

  • Researching “most popular rap songs” (01:32–03:52)
  • Cold email frameworks and prompt techniques (05:00–06:58)

• Behind the Scenes:
  Aggregates API access from OpenAI (for Reddit), X (using XAI keys), and standard web search—offering richer context than one single tool.

  “Last 30 days pulls in all these API keys and pulls it all together, if that makes sense.”
  —Matt Van Horn (04:00)

4. Results: Prompt Quality & Practical Frameworks (05:00–07:47)

• Prompt Example Highlights:
  Matt demonstrated how little input still generates nuanced, well-structured cold emails using current in-vogue frameworks.

• Originality in Output:
  It surfaced both timeless frameworks like AIDA and newly trending ones from the past month.

  “I'm reading these emails and I get a lot of cold email and these are actually ones that would break through the noise.”
  —Greg Isenberg (06:25)

5. Real-Time Knowledge for Building & Marketing (07:47–11:07)

• Growth Hacks & Social Media Tactics:
  • Insights into fastest ways to gain X followers—“being a reply guy” and daily engagement tips (07:49).
• Product & Market Research:
  Using "Last 30 Days" as a trend detector for open-source projects, building enterprise versions, or finding marketable angles fast.

6. Advice for Founders & Creators (11:19–15:11)

• Best Use Cases:

  • Competitive research
  • Discovering hot topics
  • Design trend scouting

• Prompting Philosophy:
  Matt advocates short, focused prompts to “prime the engine”, then layering in more specifics as the tool returns value.

  “You kind of just like, okay, let's just trust the mind crowd, the world that's out there and use those best practices.”
  —Matt Van Horn (12:43)

7. Demo: Trend-Informed Product Design & Naming (15:11–17:44)

• SaaS Product Architecture:
  Matt walks through using the tool to plan an enterprise SaaS product (MoltBot/Claude Cloud) based on real-time community chatter.

  “Transform Multbot … into a multi tenant enterprise SaaS platform called Multbot Enterprise or Claude Cloud. This capitalizes on the viral growth…”
  —Matt Van Horn (13:58)

• Naming Brainstorm:
  Fun back-and-forth on naming—Claude Cloud vs. Molt Cloud vs. Lobster/Red Lobster.

8. Modern Design Trends via “Last 30 Days” (17:44–21:42)

• Design Prompt Cascade:
  The skill generates up-to-date design prompts for Figma, identifying contemporary web design elements (e.g., Shopify Winner Edition landing page).

• Detailed Figma Prompt Example:
  Output includes suggestions like asymmetrical layouts, hand-drawn accents, and “warm, humid” atmospheres based on recent social praise.

  “Design a landing pad that feels warm and humid, not cold SAS tablet layout anti grid composition…”
  —Matt Van Horn reading prompt output (18:38)

9. Getting Started and Leveling Up (21:54–24:38)

• For Non-Engineers:
  Matt reassures listeners: even non-coders can harness Claude Code + “Last 30 Days” by leveraging ChatGPT alongside for troubleshooting.

  “I am not a software engineer…what’s amazing is being not a software engineer and being able to go into Claude code, like it seems intimidating…And my recommendation for starting out is set up Claude code. It's magical.”
  —Matt Van Horn (22:08)

• Workflow Hacks:
  He details his loop of screenshotting errors, flipping between Claude and ChatGPT for fast solutions.

10. Final Thoughts and Resources (24:38–25:16)

• Resource Links:
  Greg announces links will be included to "Last 30 Days" and to follow Matt on X.

• Broader Takeaway:
  The real-time web is now deeply accessible for rapid experimentation and building, especially atop Claude Code.

  “It's crazy that this is just sort of like a project that you started and it's gaining so much traction and I think people are just, you know, obsessed with Claude code for good reason…but I think people are just trying to get the most out of it. So this came at a very perfect time…”
  —Greg Isenberg (24:38)

Notable Quotes

• On the pace of change in AI and internet conversations:

  “What's happening... it's changing so quickly. And so being able to just become expert at something…kind of reminds me in the Matrix when he gets plugged in and it's like, I know kung fu, right?”
  —Matt Van Horn (02:35)

• On prompt minimalism and emergent value:

  “I'm impressed how little you're giving, like how short your prompts are.”
  —Greg Isenberg (18:19)

• On the magic of combining tools:

  “I keep a ChatGPT window Open to ask questions to. And so I'm kind of moving back and forth and posting lots of screenshots. Be like, there's some error…I don't know what's going on. Help me.”
  —Matt Van Horn (22:08)

Memorable Moments

• Naming the SaaS tool turns into playful brainstorming (“Claude Cloud,” “Molt Cloud,” “Red Lobster,” “Red Laffe”) (15:43–16:41)
• Real-time Figma prompt generated based on trending page layouts described on social (18:38–19:27)
• Live workflow demonstration of how “Last 30 Days” cascades from trending web data to product plan to design prompt (entire demo segments)

Key Timestamps

• 00:00–01:22: Introduction & goal of “Last 30 Days”
• 02:27–03:52: Why Matt built the tool
• 03:52–06:25: Demo—prompting for rap song trends & cold email frameworks
• 07:01–11:07: Social growth hacks and building from live data
• 12:43–13:51: Using crowd-sourced expertise for idea generation
• 15:11–17:44: Turning trending insights into product architecture
• 18:38–21:14: AI-generated Figma design prompts with up-to-date aesthetics
• 22:08–24:38: Advice to non-coders and workflow hacks

Takeaways for Listeners

• “Last 30 Days” makes Claude Code immediately more powerful and relevant for anyone building or researching in fast-moving areas.
• Simple, direct prompts—combined with real-time data—yield surprisingly deep and practical results.
• Non-coders can leverage this ecosystem by using ChatGPT for troubleshooting and general problem-solving.
• Modern product and design research can be supercharged with tools that tap directly into trending online conversations.

Resources:

• Get "Last 30 Days" and more tool links at gregisenberg.com/30startupideas
• Follow Matt Van Horn on X for updates