AI Blocks › Build and ship software
Edge case list maker
Paste a change you plan to make. Get the cases to check, smallest first, before you write any code.
Edge case list maker is a free AI prompt for the job "Build and ship software". Give the instructions to an AI assistant that supports the required files and tools, then review its output.
Free · No account · Made by AI Blocks · Level: beginner
What it does
A list of cases written before the work shows you its shape and gives you a clear next step. Without one, people build the main case, miss the edges, and find them in front of a customer. This prompt writes the list for you. Each case says what should happen, never how to build it, so any design can meet it. The cases come smallest first, so you can finish one in a sitting and cross it off.
You give it
- The change, in your own words
- What it does today (optional)
- Past bugs or odd customers (optional)
You get
- The change in one line
- Cases in order, each with its group and size
- The first case to check, in plain words
- A short list of design decisions to make later
Use it when
- You are about to change code, a spreadsheet or a form and want to know what could break.
- Your AI keeps building the main case and missing the edges.
- You want a clear first step before any work starts.
How to use it
- Copy the prompt, then paste it into your AI chat (Claude, ChatGPT or Gemini).
- Under it, paste your details, one item for each line in What you need.
- Send it and read the reply against the checks at the end of the prompt.
- Answer anything marked MISSING and send it again, or ask for one part to be redone.