Hey {{first_name | there}},

You know Claude has skills. Everyone talks about them at this point.

But most of you are still using the same generic and overhyped skills like frontend design and superpowers. They're fine. They do the job.

Here’s the thing: there’s an entire open-source ecosystem of community-built Claude skills sitting on GitHub right now - tested, free, and genuinely useful. 

I've spent time going through them, and I found five that I think many of you are sleeping on.

Let me walk you through each one.

Now, here are the five I've been playing with:

Before you build anything - ANYTHING - run this.

This skill checks if your idea already exists before you invest hours (or months) into it. 

Just describe your idea, and it will tell you who else has already done this before. 

You’ll know if you should build it, fork it, contribute to something existing, or investigate why someone else abandoned the idea.

Here's the part I love: if your idea is distinctive because of a specific constraint - offline-first, self-hosted, a niche language, a specific regulatory requirement - it finds the real gap or the real incumbent you didn't know about.

This one is just absurdly good value.

Someone took 14 of the most important business books - $100M Offers, The Mom Test, Lean Startup, Blue Ocean Strategy, SPIN Selling, Traction, StoryBrand, and more - and distilled the actual frameworks, decision trees, templates, and case studies into structured Claude skills. 

Not summaries or book reports. But the parts that actually matter.

Ask "how do I price this?" and it pulls Monetizing Innovation. Say "nothing is working" and the /diagnose meta-skill routes you to the right framework.

Okay, real talk.

Most AI-written content still sounds like AI-written content. Em dashes everywhere, rule of three in every sentence, that fake sense of significance in every paragraph.

This skill catches 29 specific patterns of AI writing - based on Wikipedia's own "Signs of AI Writing" and rewrites your content to remove all of them.

Test it: /humanizer Here's a sample of my writing: [paste 2-3 paragraphs you've written] Now humanize this: [paste any AI-generated text]

You have a plan. A product design. A business idea. A strategy doc. 

And you want to stress-test it - not have AI agree with you, which is what normally happens.

The grill-me skill does the opposite. It interviews you relentlessly about every aspect of your plan, walks down each branch of the decision tree, resolves dependencies between decisions one by one.

This is the part I like - gives you its recommended answer for each question instead of just asking and waiting.

This one is meta, and honestly the most interesting of the five.

Here's the problem with most skills: you build them, they work, and then they stay frozen forever. They don't learn from how you actually use them.

Task Observer fixes this. It runs alongside your normal work sessions, watches what you do, captures your corrections and judgment calls, and at the end of each session produces a structured log of suggested improvements - for every skill you've used, including itself.

If you're building a serious Claude workflow, this is the one that makes everything else compound over time.

Here's what I think about when I look at these five:

We're at a point where the most valuable AI users aren't the ones who use Claude the most - they're the ones who've set it up the best. 

Custom skills, structured workflows, progressive context loading.

Anthropic's own engineers use hundreds of internal skills in Claude Code production. The gap between someone running a default setup and someone with a tuned skill library is enormous - and it's only going to widen.

The good news? The community is doing this work in public, and it's free.

You just have to install it.

Which one did you try first? Reply and let me know - I read every response.

- Aashish

P.S. - Drop by the AI community if you want to swap Claude setups or workflows. Real humans only, I promise: https://chat.whatsapp.com/IXt9FJIblNs8tu36JIwWbd

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