Set up ChatGPT once.
Run every client the same way.

Why a skills kit beats pasting prompts

You already know the failure mode. The minutes prompt lives in a note somewhere. The status report prompt is in a different note, or was it a saved chat? Each time you use one, you tweak it slightly, so the output drifts. By the third client, the same job produces three different layouts, and you're spending the time you saved reformatting.

A skill ends that. It's the job written down once - what goes in, how the work gets done, and exactly what the output looks like - saved as a file and uploaded where ChatGPT can read it. Run it today, run it in six weeks, run it for a different client: same layout, same standards, same rules. The thinking you did the first time keeps paying, and the document a client receives in month four matches the one they received in week one.

That consistency is the actual product. Clients don't see your prompts. They see whether your minutes, reports and playbacks look like they come from one firm or from whoever had the laptop that day.

Running a skill

In any chat inside the Project, say "Use skill: Meeting Minutes" (or whichever skill you need) and attach what the skill asks for - a transcript, your rough notes, last week's updates. The master instructions you pasted tell ChatGPT to find that file among the Project's documents, follow its method, and produce the output in the skill's layout. No re-explaining, no formatting requests, no "make it look like last time".

You don't have to remember the names either. Describe a matching job - "turn these notes into minutes I can send" - and the instructions tell ChatGPT to recognise it and offer the skill before doing the work freestyle. The kit catches you even when you forget it's there.

Creating your own skill

The 10 in the kit cover a consulting engagement, but the format works for any job you do more than twice. The fastest way to write a new one is to ask ChatGPT to draft it in the same five-section format the kit uses. Copy this, fill in the brackets, and send it:

You write skill files for ChatGPT Projects. A skill is a markdown
file with five sections: What this does / What you give it /
How to do the work / Output layout / Rules.

Draft a new skill called [skill name].
The repeatable job it does: [describe the job in one or two sentences].
What I'll attach when I run it: [the inputs].
The output I need: [format, length, audience].
Things it must never do: [your hard rules].

Write the complete skill file in those five sections. Make every
instruction specific enough that the output looks the same every
time, no matter who runs it.

Review the draft, tighten anything vague, then save it as a .md file into your master Skills folder and upload it to the Projects that need it. It's now part of the kit, versioned and copied like the rest.

What the files actually are

Plain text, written in markdown - the near-universal format where # starts a heading and - starts a bullet. Any text editor on any computer opens them, they never corrupt, and ChatGPT reads them natively. There's nothing proprietary in the kit: open a skill file in Notepad and you can read every word of it.

One Windows trap if you save your own: in Notepad's Save As dialog, switch "Save as type" to All files before naming it my-skill.md. Leave it on the default and Windows quietly saves my-skill.md.txt instead. Keep every file a true .md so the kit stays tidy and predictable.