The problem
You know how this goes. A month later you need that router setup or that spreadsheet formula again. You find the chat and start scrolling. The first thing you hit is attempt 3 of 12. The version that worked is somewhere near the bottom, split across messages like “ok now change line 4 to…”
Even when you find the right spot, you can’t trust it. Was that the final command, or the one before the error? Did you change a setting two messages later that undid it? You end up rereading the whole thread just to rebuild an answer you already paid for once, and sometimes you give up and start a brand new chat from zero.
The fix is simple. Ask for a clean write-up while the chat is still fresh, before you close it. Right now you remember what you tried, and the model still has every step in front of it. A month from now, neither of you will.
How the prompt works
A Reddit user in r/ChatGPTPromptGenius shared a short prompt that does exactly this. Each line in it has a job.
- Only what worked. Dropped attempts stay out. The one exception is a mistake you’d likely repeat. That becomes a one-line warning, like “don’t enable guest mode before step 3, it resets the password.”
- Exact values. Commands, settings, numbers, names and amounts all stay as they were. This is where summaries usually go wrong, so the prompt tells it not to paraphrase. “Set the channel to something low” is useless. “Set the channel to 6” is what you need.
- Brackets for your setup. If a step only applies to your device or account, the answer flags it. Next time you’ll know what to swap out. If the router model changes or you move to a new spreadsheet, the brackets show you which parts to adjust.
- Ask, don’t guess. Long chats make the model lose track of which version you ended on. If it stops and asks you, that’s it working correctly. Answer in one sentence and let it continue.
- One closing line. It ends with the thing that finally made it work.
That last line is the one you’ll be glad you have. A month later it’s the exact detail that’s gone from your head. It’s usually something small, like a setting buried in a menu or a bracket in the wrong place. It’s also the thing you spent the longest hunting for, so it’s the thing most worth keeping.
Use cases
- 🔧 Router or home network setup that took a dozen tries
- 📊 A spreadsheet formula that needed nine rounds of fixes
- 🍲 A recipe you adjusted three times until it tasted right
- Paperwork steps for a form you’ll need again next year, like a tax document or a renewal
- Any code fix where the final version is scattered across replies, especially when you edited a file in small pieces over many messages
Prompt of the Day
We went back and forth a lot in this chat before something actually worked. Write me the final working version, as if I’m doing this from scratch next time.
- Only include what worked in the end. Leave out every attempt we dropped, unless skipping it is a mistake I’d likely make again. Then add it as a one-line warning.
- Keep exact values: commands, settings, numbers, names, amounts.
- If a step depends on something specific to my setup, say so in brackets.
- If you’re not sure which version we ended on, ask me instead of guessing.
- End with one line: the thing that finally made it work.
One more habit
Save that single message, not the whole chat. Drop it in your notes app, or use bookmarks if your chat tool has them. The point is that the next time you need it, you open one short message instead of digging through 60.
Give it a title you’ll actually search for, such as “Home router setup, working version” or “Budget sheet formula, final.” Add the date too. If the instructions depend on a software version or a device, a date tells you at a glance whether they’re likely still current.
Your move
Next time a chat finally works, don’t just close the tab. Paste the prompt, check the final version once, and save it. Checking matters because the model can still slip on a number or a step, and it takes less than a minute to read a short list against what you remember doing. If you tweak the prompt for your own use, I’d like to hear what you changed. And if you want more prompts like this, subscribe to the Cyber Corsairs newsletter.
The answer that finally worked in a long ChatGPT chat is usually buried under the 12 that didn’t. Run this before you close it and get the final version in one message
by u/Ok_Negotiation_2587 in ChatGPTPromptGenius