Turning ChatGPT design corrections into a reusable local app design skill

Fien De Waele Tongeren, Belgium · 2H AGO

I have around 150-200 online courses spread across platforms, and I don't enjoy learning from video. I wanted to collect the useful content in its original wording so I could read it at my own pace. While designing a local app with ChatGPT for this, we also developed a way of working together, and I turned that into a reusable skill called Appontwerp (Dutch for "app design"). 1. Start with a real project. I brought an existing Excel inventory and files from a previous working setup. These gave us concrete material to inspect and reuse. 2. Make corrections specific. "Don't rush" became: understand the goal and scale, inspect what already exists, ask about unclear decisions, offer your own recommendation, then make a plan together. 3. Separate decisions from experiments. We tracked what was decided, what still needed my input, and what a technical test had to establish. 4. Capture the method while it's visible. I asked ChatGPT to extract our preferences from the conversation and make a skill for local app design. In my setup, it packaged this as a private plugin. 5. Keep reusable guidance separate from project details. Our light-blue background and purple buttons didn't become mandatory for future projects. My existing personal-context plugin remains responsible for tone. The prompt I used: "Review how we've worked together in this conversation. Extract my explicit corrections and confirmed preferences into a reusable skill for local app design. Cover understanding the goal, reusing existing work, clarifying meaningful decisions, distinguishing decisions from test questions, agreeing a plan, and executing it step by step. Preserve my existing tone/context guidance. Separate general working preferences from project-specific choices. Don't claim anything was implemented or tested unless it was." The result so far is an early local inventory app and a private skill describing how I want us to design the next one. The course-harvesting automation is still unfinished, and the new skill hasn't been tested across future projects yet.