Feb 4, 2026 · 25m · startup-ideas
The Claude Code Skill My Smartest Friends Use
gold bands on the timeline = statements, start to end. Hover to read, click to jump. CC turns on captions
Greg Isenberg interviews Matt Van Horn, creator of the 'Last 30 Days' Claude Code skill, demonstrating how scraping real-time data from X and Reddit supercharges market research, prompt generation, and autonomous software development.
How this conversation actually went
Every chapter scored 0–10 on four independent dynamics. Hover any point for the reasoning behind the score. Greg holds 24.5% of the talking time here. How this is scored →
speaking balance: gold is Greg, purple is the guest (3 minute bins)
Matt playfully shuts down Greg's naming suggestion of Moult Cloud by pointing out it triggers the exact same trademark and licensing issues as Claude Cloud.
Hardest push from Greg ▶ 3:52 Questioning tool necessity versus PerplexityGreg directly challenges the core product premise on behalf of the audience, asking why someone would use this over built-in Perplexity or ChatGPT searches.
Biggest teaching moment ▶ 4:00 Detailing multi-API backend requirementsMatt breaks down the non-obvious API requirements behind the skill, explaining that Reddit access requires OpenAI partnership deals and X requires dedicated XAI developer keys.
Greg holds their own ▶ 6:25 Critiquing cold email copywriting frameworksGreg demonstrates his domain knowledge in growth and copywriting, tracing the generated AIDA framework back to David Ogilvy and evaluating why the output would succeed in his inbox.
the scores for every segment, with the reasoning behind each
| Chapter | Topic | Greg as informed peer | Guest teaching | Guest disagreement | Greg pushing back | Why |
|---|---|---|---|---|---|---|
| Overview and First Demo of the Last 30 Days Skill | 3 | 5 | 1 | 3 | Greg acts as a surrogate for skeptical viewers by asking why someone wouldn't just use Perplexity or ChatGPT. Matt educates him on how Last 30 Days stitches together specific API keys (OpenAI Reddit deal, XAI API) inside Claude Code. | |
| Cold Email Strategy and Pitch Generation Demo | 5 | 3 | 0 | 0 | Matt demonstrates generating cold emails targeted at Greg's podcast. Greg displays his marketing acumen by noting the AIDA framework dates back to David Ogilvy and verifying the generated copy would genuinely break through his inbox clutter. | |
| Researching X Audience Growth Strategies | 3 | 4 | 0 | 1 | Greg prompts Matt on optimal prompt length and how solopreneurs can extract value. Matt shows how priming the context first with Last 30 Days feeds cleanly into downstream compound engineering workflows. | |
| Querying Web Design Trends and Vibe Coding Workflows | 4 | 4 | 0 | 0 | Greg connects the utility of real-time trend discovery to overcoming creative blank-page syndrome during design. Matt explains his vibe-coding workflow of searching Reddit for current prompt syntax before prompting directly. | |
| Software Architecture Review for 'Red Lobster' Enterprise Build | 4 | 5 | 1 | 2 | Matt walks through an automatically generated enterprise architecture plan. Greg and Matt playfully banter about naming conflicts (Claude Cloud vs Moult Cloud vs Red Lobster) and the speed of building an enterprise MVP. | |
| Analyzing Web Design Results and Generating Figma Prompts | 3 | 4 | 0 | 1 | Greg asks whether the tool can output structured Figma prompts. Matt tests the output live, revealing detailed UI design guidelines and 2026 aesthetics extracted from current X discourse. | |
| Image Prompts and Telegram Bot Integration | 2 | 5 | 0 | 1 | Greg asks why Matt configured the bot on Telegram rather than Discord or iMessage. Matt explains the technical constraints of hosting on a low-cost shell server without a Mac Mini host. | |
| Matt's Workflow and Guidance for Non-Technical Builders | 2 | 6 | 0 | 0 | Matt shares practical advice for non-technical builders, explaining how he uses ChatGPT as a real-time debugging companion to paste terminal errors and terminal screenshots via Control-V. |