last30days

/last30days v2

The AI world reinvents itself every month. This Claude Code skill keeps you current. /last30days researches your topic across Reddit, X, and the web from the last 30 days, finds what the community is actually upvoting and sharing, and writes you a prompt that works today, not six months ago. Whether it's Ralph Wiggum loops, Suno music prompts, or the latest Midjourney techniques, you'll prompt like someone who's been paying attention.

New in V2: Dramatically better search results. Smarter query construction finds posts that V1 missed entirely, and a new two-phase search automatically discovers key @handles and subreddits from initial results, then drills deeper. Also: free X search via Bird CLI (no xAI key needed), --days=N for flexible lookback, and automatic model fallback. Full changelog below.

The tradeoff: V2 finds way more content but takes longer — typically 2-8 minutes depending on how niche your topic is. The old V1 was faster but regularly missed results (like returning 0 X posts on trending topics). We think the depth is worth the wait, but if you'd use a faster "quick mode" that trades some depth for speed, let us know: @mvanhorn / @slashlast30days.

Best for prompt research: discover what prompting techniques actually work for any tool (ChatGPT, Midjourney, Claude, Figma AI, etc.) by learning from real community discussions and best practices.

But also great for anything trending: music, culture, news, product recommendations, viral trends, or any question where "what are people saying right now?" matters.

Installation

# Clone the repo
git clone https://github.com/mvanhorn/last30days-skill.git ~/.claude/skills/last30days

# Add your API keys
mkdir -p ~/.config/last30days
cat > ~/.config/last30days/.env << 'EOF'
OPENAI_API_KEY=sk-...
XAI_API_KEY=xai-...       # optional if using Bird CLI
EOF
chmod 600 ~/.config/last30days/.env

Optional: Bird CLI for free X search

Bird CLI lets you search X without an xAI API key. If installed and authenticated, /last30days uses it automatically.

npm install -g @steipete/bird
bird login

Bird is free and doesn't require an xAI key. If both Bird and an xAI key are available, Bird is preferred.

Usage

/last30days [topic]
/last30days [topic] for [tool]

Examples:

• /last30days prompting techniques for ChatGPT for legal questions
• /last30days iOS app mockups for Nano Banana Pro
• /last30days What are the best rap songs lately
• /last30days remotion animations for Claude Code

What It Does

1. Researches - Scans Reddit and X for discussions from the last 30 days
2. Synthesizes - Identifies patterns, best practices, and what actually works
3. Delivers - Either writes copy-paste-ready prompts for your target tool, or gives you a curated expert-level answer

Use it for:

• Prompt research - "What prompting techniques work for legal questions in ChatGPT?"
• Tool best practices - "How are people using Remotion with Claude Code?"
• Trend discovery - "What are the best rap songs right now?"
• Product research - "What do people think of the new M4 MacBook?"
• Viral content - "What's the dog-as-human trend on ChatGPT?"

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Example: Nano Banana Pro Prompting (Image Generation)

Query: /last30days nano banana pro prompting

Research Output:

JSON prompting is the dominant technique — The X community overwhelmingly uses structured JSON prompts rather than plain text. Creators like @Xmira_belle, @Cicily_aura, @RubenSalvo_, and @mahivisuals all share prompts in JSON format with nested objects for metadata, subject descriptions, lighting, camera specs, and scene composition. @realdigitaldao made a static ad "in less than 5 min" using a simple JSON prompt.

Prompt adherence is Nano Banana Pro's killer advantage — JSON prompts hit 92% precision for color accuracy, lighting ratios, and composition vs ~68% for natural language prompts, per fofr.ai. @artingent directly compared it to GPT Image 1.5 and noted Nano Banana Pro has higher prompt adherence — "GPT image 1.5 ignored the Top Down instruction."

Stop writing "tag soup" — act like a Creative Director — The biggest shift is away from comma-separated keyword lists toward natural language descriptions with clear structure. The ICS Framework (Image type, Content, Style) and the 5-element formula (subject, composition, action, setting, style) are the two dominant approaches, per r/nanobanana2pro.