The Claude Code Skill That Searches Reddit, X, and YouTube at Once

Chase AI walks through a GitHub repo called Last 30 Days that turns Claude Code (Anthropic's CLI, transcribed in the video as "CloudCode") into a multi-source research agent. Instead of running one web search, the skill scrapes Reddit, X, YouTube, TikTok, Instagram Reels, and more, then scores the results by real engagement and writes a summary with citations. The repo hit the number one trending spot on GitHub for the day.

What Last 30 Days Does

The real repo is mvanhorn/last30days-skill. It describes itself as an AI agent-led search engine scored by upvotes, likes, and real money. You give it a topic and it queries many platforms at the same time, pulls posts and comments from the last 30 days, ranks them by how people actually responded, and merges the same story across sources into one item.

The scoring matters because it ignores editorial bias. A Reddit thread ranks by upvotes and comment counts. A YouTube result ranks by views. A Polymarket entry ranks by the money people bet on an outcome. The result is a picture of what people are saying right now, not what a search engine decided to surface.

The Sources

The README lists each source and what it gives you. Reddit provides the unfiltered take with upvote counts. X/Twitter provides the hot take and the breaking reaction. YouTube provides deep-dive transcripts. TikTok reaches a large audience that web search misses. Hacker News provides the developer consensus. Polymarket provides odds backed by real money. GitHub provides repo velocity and stars.

The full set covers Reddit, X/Twitter, YouTube, TikTok, Instagram Reels, Hacker News, Polymarket, GitHub, Digg, Threads, Pinterest, Bluesky, Perplexity, and web search. Reddit, Hacker News, Polymarket, and GitHub work right away with no setup. The rest need API keys or authentication, which a setup wizard configures on first run.

How It Works

The skill runs in five steps. First is topic resolution, where the agent identifies the relevant people, handles, subreddits, GitHub repos, and hashtags before it searches. Typing a product name resolves to the creator's account, the right subreddits, and the matching YouTube channels. Second is parallel searching, where every source is queried at the same time with multiple query variations per source. Third is engagement scoring, where results rank by upvotes, views, likes, and bets rather than recency or page rank. Fourth is cluster merging, where the same story across several platforms collapses into one entry. Fifth is synthesis, where Claude Code writes a cited summary grounded in the specific posts it found, and you can ask follow-up questions in the same session.

You install it as a Claude Code plugin with /plugin marketplace add mvanhorn/last30days-skill, or through the Agent Skills CLI with npx skills add mvanhorn/last30days-skill -g.

Key Takeaways

• Last 30 Days is a real, open-source Claude Code skill at mvanhorn/last30days-skill, and it trended at number one on GitHub for the day.
• It searches Reddit, X, YouTube, TikTok, Hacker News, Polymarket, GitHub, and several more sources in parallel, then scores results by real engagement.
• Reddit, Hacker News, Polymarket, and GitHub work with no setup. The other sources need API keys that a setup wizard walks you through.
• The output is a cited summary of the last 30 days of discussion, which beats a single web search when you want to know what people are actually saying.

Resources

• mvanhorn/last30days-skill -- The GitHub repo for the Last 30 Days Claude Code skill, with install instructions and API key setup guides.
• chase_ai_ on TikTok -- The original 33-second video walking through the repo.