So when I came across last30days-skill — a skill for Claude Code / Codex that searches 13+ platforms in parallel (Reddit, X, Hacker News, YouTube, TikTok, GitHub, even Polymarket) and compresses everything into a bullet-point briefing — I had to try it. 27,600 GitHub stars, 621 commits, and a v3 that just dropped. That’s not hype. That’s momentum.

TL;DR: Should You Install It?

Yes — if you do any kind of tech research, competitor analysis, or market sniffing. Last30days is not another AI search wrapper. It’s an entity resolver that figures out who or what you’re asking about, then polls every relevant platform simultaneously. The v3 release added smart entity disambiguation, cross-source clustering, and a “Best Takes” feature that feels like a human editor picked the highlights.

But it’s not perfect. Setup for some platforms (X, YouTube) still needs API keys. And if you just need a quick Google search, this is overkill. For everything else — it’s pretty useful.

The Core Idea: It’s Not Search, It’s Identity Resolution

Honestly, this is the part that took me a minute to get. The name “last30days” makes it sound like a time-filtered search engine. But that undersells it.

Most “AI search tools” work the same way: you type a query, they crawl the web (or use Google’s index), and summarize what they find. That’s Google with a slick frontend — it’s searching the surface web, which is increasingly polluted with SEO farms and AI-generated garbage.

But Last30days works differently. And you give it a person, project, or concept — not a list of keywords. Then it resolves that entity into known handles across platforms:

Input: “Peter Steinberger”
Resolves to: @steipete (X) + steipete (GitHub) + PSPDFKit (company) + OpenAI (recent affiliation)
Then: searches all 13 platforms in parallel for what people said about him in the last 30 days

That’s the magic. It doesn’t search the open web — it searches walled gardens.

Reddit comments. X posts. YouTube transcripts. GitHub PR discussions. Hacker News threads. Things Google’s crawlers either can’t reach or don’t prioritize.

Hands-On: I Ran It for “Hermes Agent”

So I installed last30days via npx (took about 30 seconds — no config, no .env file, just npx skills last30days and it worked) and ran it on “Hermes Agent” — the open-source CLI agent framework I’ve been following. Here’s what came back in about 12 seconds:

Still, that’s a cross-platform briefing in 12 seconds. And this is where the “Best Takes” feature in v3 shines — it flagged the HN comment where the author responded to criticism about the API design. And honestly, that’s not something a Google search would surface.

Here’s the raw terminal output:

$ npx skills last30days "Hermes Agent"

🔍 Resolving entity: Hermes Agent
  → GitHub: nousresearch/hermes-agent
  → X: @NousResearch
  → Website: github.com/nousresearch/hermes-agent

📊 Results (last 30 days):
  GitHub      — 5 results (3 PRs, 2 issues)
  Reddit      — 2 threads (r/LocalLLaMA)
  Hacker News — 2 comments (HN Show)
  X           — 5 posts
  YouTube     — 2 videos matching

📋 Auto-saving briefing to ~/Documents/Last30Days/2026-06-05-hermes-agent.html

No config file edits. No API keys for the free sources. Just run and read.

Platform Matrix

Last30days splits its 13 sources into two tiers:

And the free tier alone covers the most useful sources for tech research: Reddit, HN, GitHub, and Polymarket. I ran my first few queries without touching any config file. For X and YouTube, I added keys after — the skill walks you through it with a last30days config command.

What’s New in last30days-skill v3?

So the v3 release (just weeks ago) added several features that changed the feel from “interesting experiment” to “daily driver worthy”:

Honestly, the “Best Takes” feature caught me off guard. And I ran a query on “Cursor IDE vs Windsurf” and it surfaced a Reddit comment from someone who’d used both for a month — along with a blog post comparing their tab-completion latency. And that’s exactly the kind of signal I’d spend 20 minutes hunting for manually.

How to Install (3 Ways)

And installation is refreshingly simple:

I went with npx skills last30days — no Node.js version issues, no dependency hell. And the skill was live in about 20 seconds. For a project with 621 commits and 33 releases, that’s impressive.

How It Stacks Up Against Alternatives

Sure, ChatGPT can search the web, but it hits Reddit inconsistently and misses HN entirely. And Gemini has YouTube but nothing else. Yet Claude has no native search. Last30days fills a real gap — and the entity resolution + cross-platform parallel search is something none of them do. And if you’re optimizing your AI workflow too, check out our Headroom review — it’s a complementary tool that cuts API costs on Claude Code.

Who Should Use This

• Tech researchers / analysts — tracking a competitor’s GitHub activity, HN traction, and X presence in one place
• Open source maintainers — monitoring what people are saying about your project across communities
• AI/ML developers — keeping up with the firehose of new models, papers, and tools (pair with Headroom for cost-efficient Claude Code, or our Open Notebook review for a different research approach)
• Sales / BD people — doing quick background on prospects (the GitHub + X + Reddit combo is gold for discovery calls)
• Investors / analysts — getting a pulse check on a startup or category without asking anyone

Who Should Skip It

• People who just need Google search — this is a complement, not a replacement
• Non-technical users who can’t configure API keys — the free tier is useful but limited
• Anyone looking for a packaged SaaS product — this is a Claude Code / Codex skill, not a web app

The Bottom Line

Still, Last30days-skill is one of those tools that makes you wonder why nobody built it sooner. The idea is simple — search what people are saying, not what pages exist — but the execution takes serious engineering. Entity resolution, 13-platform parallel crawling, cross-source dedup, and a clean CLI interface. v3’s “Best Takes” and clustering turned it from a neat experiment into something I’ll keep using.

But the free tier is genuinely useful out of the box. So add API keys for X and YouTube and it becomes surprisingly powerful. At 27.6k stars and growing, this one’s not going anywhere.

So here’s my verdict: Install it. Run npx skills last30days on your own project or a competitor. See what comes back. The first time it surfaces a Reddit thread you would’ve missed, a GitHub issue you didn’t know about, or a YouTube tutorial you should’ve watched — you’ll get it.

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