Last30Days is a Claude Code skill by mvanhorn that has exploded to 34,000+ GitHub stars with a +3,558/day velocity, making it the #1 trending GitHub repository on June 8, 2026. It provides a 30-day rolling research window that aggregates content across multiple platforms — GitHub, Twitter/X, Reddit, Hacker News, arxiv, Polymarket, blogs — and synthesizes findings into structured reports. The skill handles the tedious work of monitoring what happened recently in any domain, letting researchers and developers stay current without manually checking dozens of sources.
Last30Days answers a simple question that every developer and researcher faces: “What happened in [my domain] recently?” The skill aggregates content from multiple platforms — GitHub trending, Twitter/X discussions, Reddit threads, Hacker News posts, arxiv papers, and blog posts — within a rolling 30-day window, then synthesizes the scattered signals into a structured report. Instead of manually checking a dozen sources every morning, you invoke the skill and get a coherent summary of what moved.
The growth trajectory (+3,558 stars/day, 34,000+ total, #1 GitHub Trending on June 8, 2026) reflects how universal the need is. The skill is particularly strong for fast-moving domains like AI/ML, where a week away from the discourse means missing significant developments. It works as a standard Claude Code skill — no infrastructure to deploy, no APIs to configure beyond what the underlying platforms require.
Multi-source aggregation: Pulls from GitHub (trending repos, release notes), Twitter/X (discussions, threads), Reddit (top posts across relevant subreddits), Hacker News (front page and comments), arxiv (recent papers), and RSS/blog feeds. Sources are configurable per query.
30-day rolling window: The research window is fixed at 30 days by default, ensuring results are current without drowning in historical noise. Useful for weekly standups, monthly reports, or ad-hoc “what did I miss” queries.
Synthesis, not just aggregation: The skill does not simply list links. It groups related signals across platforms, identifies emerging trends, and highlights consensus and disagreement. A GitHub repo trending alongside a critical Hacker News discussion gets surfaced as a single story, not two unrelated items.
Claude Code skill format: Installs as a standard SKILL.md file. No separate server, no Docker containers, no API keys beyond what the underlying platforms need for access.
Researchers, developers, and technical writers who need to stay current across multiple platforms without manual monitoring. Especially valuable for anyone who covers fast-moving technical domains and needs structured, synthesized summaries rather than raw link dumps.
AI agents that work well with Last30Days Skill.
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