Ask any AI “what happened with X lately” and it hallucinates or hands you a stale training-data answer. Matt Van Horn’s fix is a skill, not another chatbot.
What it actually is
last30days-skill is a plug-in skill for coding agents — mount it in Claude Code or Codex and it works. Give it a topic and it scrapes the last 30 days of chatter across Reddit, X, YouTube, HackerNews, Polymarket and the open web, cross-checks the sources against each other, then hands back a synthesized summary with citations. No dashboard, no API to wire up. It runs locally, keeps your research on your machine, and ships with 2,700+ tests.
Why it’s trending
54,000 GitHub stars, still climbing daily — one of the most-starred practical tools in the whole Claude/Codex skill ecosystem. The pitch lands because it kills the one thing agents are worst at: “what’s the current state of this thing?” Van Horn, who co-founded the company that became Lyft and the June oven, clearly knows a distribution hack when he sees one — shipping it as a skill means zero setup friction. Every source is traceable, so you can check its work instead of trusting it.
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