It was 8:52am on a Thursday. Standup is at 9:00. Our CEO had just posted in #product: 'we should let people export their data as CSV, getting a bunch of tickets about it, seems easy.' Three sentences and a rocket emoji. By 8:55 two engineers had replied with implementation opinions, one designer had asked which screen, and a sales rep had jumped in to say a specific account 'really needs this.' We were eight minutes from standup and already misaligned about a feature nobody had defined.
I have lived this exact moment maybe two hundred times. The vague exec ask lands, everyone projects their own version onto it, and the first sprint becomes an expensive game of telephone. My old move was to spend the next forty minutes hand-writing a PRD in Notion while the thread spiraled. That Thursday I did not have forty minutes. I had eight.
The eight-minute version
I copied the whole Slack thread into the rough_idea field of the Turn a Rough Idea or Slack Thread into a Team-Ready PRD prompt. For product context I pasted one paragraph I keep in a snippet: 'B2B analytics dashboard, 500 paying mid-market customers, self-serve plus a sales-assisted enterprise tier.' For target users I wrote 'data analysts who build weekly reports for non-technical stakeholders.' I hit run on Claude Opus 4.8 and went to refill my coffee.
By the time I sat back down it had produced the whole thing. And the very first line did the thing I needed most: it reframed the ask. The problem statement did not say 'users want CSV export.' It said 'analysts cannot share findings with stakeholders who do not have dashboard logins, so they screenshot charts into emails and lose all the underlying numbers.' That is the actual pain. CSV is just one possible fix for it. Reading that sentence out loud at standup changed the entire conversation from 'how do we build export' to 'who is this for and what do they do with the file.'
The parts I would have missed
The reason I trust this prompt is the open questions section, because it consistently surfaces the landmine I was about to step on. This time question two was: 'Do we export the current filtered view, or the full underlying dataset?' That sounds small. It is not. Half my engineers had assumed 'what is on screen' and half had assumed 'everything.' Those are different features with different performance profiles. We would have found out in code review, a week and a half in.
- It wrote a non-goal I never would have said out loud: 'This is not a GDPR data-portability export and should not be treated as one.' That single line stopped a scope debate before it started.
- The primary metric it proposed was 'percent of weekly-active analysts who export at least once per week,' not the lazy 'number of exports,' which any bot scraping the page could inflate.
- It flagged a guardrail metric I would have forgotten: report page load time, because a naive 'export everything' could quietly tank the page it lives on.
- It assigned likely owners to two of the open questions, which meant nobody could pretend the question was somebody else's job.
What it is not good at
I want to be honest, because a prompt that claims to do everything does nothing. This is not a magic scoping machine. The effort and timeline are still on me and the team. And for genuinely novel platform work, the first PRD is too generic, because the model has no opinion about your weird internal architecture. For those I still write the first draft myself. But for the seventy percent of features that are 'a normal enhancement to a thing we already have,' this gets me to a reviewable draft faster than I can open the Notion template.
We shipped the export three weeks later. The PRD survived almost untouched. The only thing we added was a non-goal for scheduled/automated exports after the open-questions discussion pushed it to next quarter. The CEO read the final doc and said it captured his intent better than his own Slack message had, which is either a compliment to the prompt or a gentle insult to his Slack messages.
If your week also runs on vague one-liners that detonate into week-long misunderstandings, grab the Turn a Rough Idea or Slack Thread into a Team-Ready PRD prompt on Prompt Dock and run it on the next exec message that scares you. I pair it with my Score and Rank a Feature Backlog with RICE prompt the moment three of these PRDs are competing for the same sprint.