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The Claude Code Skill My Smartest Friends Use

| 8 products mentioned
Greg Isenberg Greg Isenberg host
Matt Van Horn guest
Watch on YouTube ai tools claude code prompt optimization startup ideation competitive research product development trend analysis

Greg Isenberg interviews Matt Van Horn about Last 30 Days, a new Claude Code skill that research trending data from X, Reddit, and the web to generate optimized prompts. The tool gives users "superpowers" by aggregating real-time internet conversations as the foundation for AI prompts, allowing them to quickly become expert-level on any topic without reading research themselves.

Key takeaways
  • • Last 30 Days searches X, Reddit, and the web for recent conversations to feed into Claude Code prompts, helping users bypass the need to manually research trends.
  • • The tool works best when combined with other Claude Code skills like Compound Engineering to transform research into actionable product plans and architecture.
  • • Non-engineers can use Claude Code effectively by keeping ChatGPT open in a separate window for troubleshooting terminal errors and running trial-and-error workflows.
  • • Last 30 Days excels at competitive research, finding hot topics, and generating context-aware outputs like cold email frameworks and landing page designs with minimal user prompting.
  • • The skill requires a Claude Code account, an OpenAI API key (for Reddit access), and an xAI key (for X/Twitter data access).
  • • Founders and solopreneurs can use the tool to quickly identify market trends, validate product ideas, and generate starting points for design and copywriting with little effort.

Recommendations (6)

Claude Code
Claude Code uses

"Set up Claude Code. It's magical. Sign up for the $20 account, if you'll be on the $100 and the $200 account probably real soon if you're successful."

Matt Van Horn · ▶ 22:49

OpenAI
OpenAI uses

"You need an OpenAI key because OpenAI has a deal with Reddit that gives you that Reddit access."

Matt Van Horn · ▶ 4:18

xAI
xAI uses

"You can't search X using your X account. You have to use an XAI key."

Matt Van Horn · ▶ 4:39

Compound Engineering uses

"Compound engineering is when I'm starting a new project is where I do my planning. Shout out to Kevin Rose for introducing me to it."

Matt Van Horn · ▶ 8:54

ChatGPT
ChatGPT uses

"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 · ▶ 23:06

Superpower recommends

"Use skills like there's another one called Superpowers which is getting a lot of love right now and you just kind of enter these plan modes."

Matt Van Horn · ▶ 24:08

Mentioned (2)

Figma
Figma "I haven't spent enough time in Figma in the AI era. All my Figma time was pre-AI, so I don't know..." ▶ 17:51
Perplexity
Perplexity "Someone in the comment section is going to be like, well, I could have used Perplexity or ChatGPT..." ▶ 3:55

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