I used to keep a messy notes file full of long prompts. Every time I wanted a LinkedIn post or clean meeting notes, I’d dig through it, copy a giant block of text, paste it into Claude, and tweak it again. It worked, but it was slow and clunky. So when I came across a post from an AI professional who explained Claude’s so-called “secret codes,” I paid attention.
The author opens with a fun hook: almost nobody knows Claude has secret codes. Then the creator clears it up right away. “Secret codes” sounds like a trick you type, but it’s not. It’s a Skill: a long, detailed prompt that’s already been written and turned into one slash command.
Everything you’d normally type into a long prompt, like your voice, your rules, and your structure, lives inside the Skill. So you type one word instead of one page. The original poster gives this example:
“/my-viral-linkedin-post AI tools I actually use.”
That’s the whole secret. The work is already in there. I love how simple this is, and the steps below show exactly how to set it up.
🧠 Why Skills Beat Copy-Paste Prompts
Before the how-to, here’s why this matters. A normal prompt only lives in the chat where you paste it. A Skill lives in your Claude account, so it’s ready in every new chat. That means:
- Consistency: Claude follows the same rules every time, so your output stops drifting.
- Speed: You skip the copy-paste routine completely.
- Fewer tokens: As the post’s author points out, you save tokens and time because you’re not retyping instructions over and over.
Now let’s get some Skills into your account.
✦ Part 1: Upload Skills to Claude (3 Minutes)
Once you have Skill files on your computer, whether you got them from a shared library or built them yourself, the upload takes just a few clicks. Here’s the process the expert lays out, plus why each step matters:
- Open Claude and click Customize in the left menu. This is where Claude keeps settings that follow you into every chat.
- Click on Skills. This section holds all your saved slash commands in one place.
- Click Add, then Upload a skill. This tells Claude you’re bringing in a ready-made file instead of writing one on the spot.
- Select the first Skill file you want to add. Start with the one you’ll use most so you can test it right away.
- Repeat for every Skill in your set. You only do this once, so it’s worth the extra minute.
- Start any chat and type the slash command, like /my-viral-linkedin-post. This is where the payoff kicks in.
The creator promises you’ll never need to do it again. After that, you just type the slash command and save tokens and time.
⚡ The Skills You’ll Reach For Daily
The LinkedIn creator highlights a few Skills that come in handy every single day. These are great models for the kind of commands worth having:
- /linkedin-hook: writes a hook in the viral LinkedIn format.
- /meeting-notes: turns transcripts into action items.
- /xlsx: makes your data look like a pro built it.
- /anti-writing: turns AI text into something that reads like a human wrote it.
Look at the pattern here. Each one handles a task people repeat weekly, if not daily. That’s the sweet spot for a Skill. If you catch yourself typing the same instructions three times, that task deserves its own command.
🛠️ Part 2: Build Your Own Skill From Scratch
This is the part that got me most excited. Ready-made Skills are handy, but a custom one built around your own voice and workflow is even better. The person who shared it walks through seven steps:
- Open Claude Cowork and pick Opus 5.5 (Medium). This gives you a strong model that can reason through your needs without overthinking.
- Type /skill-creator and name the task. Fittingly, this is itself a Skill whose job is to build other Skills.
- Answer the questions it asks you, and be specific. The clearer your answers about tone, format, and audience, the better your final Skill will be.
- It writes the SKILL.md file for you, so review it. Read it like a job description and fix anything that doesn’t sound like you.
- Add a line like “Do NOT use for [what it should ignore].” This boundary stops Claude from firing the Skill in the wrong situations.
- Save the folder. Keep it somewhere easy to find so you can update it later.
- Upload it the same way as Part 1 above. Then it’s live in every chat.
One /command, and Claude reads it exactly as you wrote it.
💡 Tips to Get the Most Out of Skills
Based on the author’s breakdown, here are a few practical ideas to try this week:
- Start with your most repeated task: weekly reports, client emails, or social posts are perfect first candidates.
- Use the “Do NOT use for” line: step 5 is easy to skip, but it keeps your Skills clean and predictable.
- Add an input after the command: like the example “/my-viral-linkedin-post AI tools I actually use,” you can pass a topic right after the slash command.
- Refine over time: if the output feels off, open the SKILL.md, tweak a rule, and re-upload.
A simple first project: build a /weekly-update Skill. Tell /skill-creator your team’s format, the sections you always include, and the tone you like. Next Friday, you type one command plus a few bullet points, and the full update writes itself.
🚀 Why This Is Such a Big Deal
We’re moving from “prompt engineering” to “prompt ownership.” Instead of rewriting great instructions every time, you save them once and reuse them forever. I think this is one of the most underrated upgrades in Claude right now, and the savvy professional behind this post explains it in a way anyone can follow.
If you want the full walkthrough and every detail in the original, go check out the complete LinkedIn post. Then pick one task you repeat all the time and turn it into your first Skill today!