Assertion Supported AI assessment confidence: 95% certainty 4/5 debate potential 1/5

Van Horn's 'Last 30 Days' Claude skill searches recent social data

Matt Van Horn · The Claude Code Skill My Smartest Friends Use · Feb 4, 2026 · at 0:59

Matt Van Horn demonstrates his custom Claude Code tool designed to pull fresh 30-day contextual data from social platforms and the web for prompting.

0:00 / 0:23exact quote · 23.3s

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“It's called slash last 30 days. And it's gonna, for any topic you could possibly imagine from best prompting techniques for a particular tool to how should I use Claude bot to what are the greatest rap songs right now? It's gonna search X Twitter and the web for only things that have happened in the last 30 days and give you a great result and help you be expert.”

quote is from the automated transcript, cleaned for reading: filler sounds and stutters are removed, nothing is rephrased. names can be misheard (the analysis reads context, assessments check outside sources). how →

The claim, plainly

The 'Last 30 Days' skill for Claude Code searches X, Reddit, and the web exclusively for content published within the previous 30 days to research any topic.

a quote alone can be ambiguous, so this restates it with the references and context of the conversation around it resolved. AI-written; the tape below the player is the source.

Assessment

Technical specifications, source code manifests (SKILL.md), and independent teardowns of the repository 'mvanhorn/last30days-skill' (published in late January 2026) confirm that the skill was built as a Claude Code plugin designed to query X/Twitter, Reddit, and web search engines while strictly constraining results to content published within the preceding 30 days.

The 'skills/last30days/SKILL.md' manifest and repository documentation define the plugin's core function as querying platforms strictly filtered to the preceding 30-day temporal window.
The source code architecture integrates search connectors specifically for X/Twitter (via xAI Grok API / session cookies), Reddit (via JSON endpoints and ScrapeCreators), and web search APIs.

Checked against

[1] youtube.com [2] apple.com [3] skillsllm.com [4] github.com [5] lobehub.com [6] github.com [7] github.com [8] lumadock.com

"mvanhorn/last30days-skill" "python" OR "prompt" OR "date" "Last 30 Days" Matt Van Horn Claude "mvanhorn/last30days-skill" "SKILL.md" OR "30 days" "last 30 days" "claude code" skill OR tool OR prompt "last30days-skill" "OpenAI" "xAI" OR "Grok" "Reddit"

assessed as of 2026-09-02

This assessment is an AI reading of a public statement, made against the cited references with the confidence shown. It can be wrong. The quote, the tape and the references are all on this page; if something is off, use report an error below. full disclaimer →

Mentioned

Claude Code Reddit slash last 30 days X (Twitter)

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Disclosure

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Matt Van Horn Feb 4, 2026 ▶ 23:59 The Claude Code Skill My Smartest Friends Use

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Disclosure

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Matt Van Horn Feb 4, 2026 ▶ 22:09 The Claude Code Skill My Smartest Friends Use

Van Horn's 'Last 30 Days' Claude skill searches recent social data

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