the simplest claude code skill you can write.
Key Takeaways
The simplest working Claude code skill is demonstrated, consisting of only 12 lines of plain English instructions, with no code required, making it accessible to anyone who can write a note to a coworker.
Full Transcript
The simplest working Claude code skill is 12 lines. Here it is, not 1200, 12, and it actually runs. You have probably heard a Claude code skill described as something technical, a tool, a setup. Let me just show you one instead, the whole file top to bottom. The top two lines are a name and one sentence describing the skill. That is the label, so Claude knows what the file is for. Then a blank line, then the instructions in plain English, read the customer email, write a friendly reply, keep it under 100 words. That is the whole thing, a complete working Claude code skill. There is no code in any of those 12 lines, no Python, no brackets, no syntax to memorize. If you can write a note for a coworker, you have already written something harder than this. I taught LangChain and AI agents to 29,000 engineers on Udemy, 20 years in AI, IBM Watson, Nike. I built the complicated version for years, and the honest truth is, 12 plain English lines do the same job for most of what you actually need. So, the simplest Claude code skill is really just three pieces. A name, a short description, and instructions a friend could follow. Save that file and Claude follows it every time. The smallest version that works is the one worth writing first.
Original Description
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The simplest working claude code skill is twelve lines — and it actually runs. Not twelve hundred lines. Twelve. This Short shows you the whole file, top to bottom.
The top two lines are a name and a one-sentence description, so Claude knows what the file is for. Then a blank line. Then the instructions, in plain English — read the customer email, write a friendly reply, keep it under a hundred words. That is a complete claude code skill. No code in any of those twelve lines. No Python. No syntax to memorize.
Who this is for: anyone curious or confused about AI — beginners, working professionals, retirees, freelancers. If you can write a note for a coworker, you have already written something harder than a claude code skill.
I taught LangChain and AI agents to 29,000 engineers on Udemy. Twenty years in AI — IBM Watson, Nike. I built the complicated version for years. Twelve plain-English lines do the same job for most of what you actually need.
Want the exact twelve-line claude code skill from this video, walked through line by line? Comment SKILL — it is free inside Agent Skills Academy.
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