Yesterday, a developer dropped a quiet little tool on GitHub that might change how you review AI-generated writing.
It’s called Postmodernist. The premise: instead of manually prompting Claude, ChatGPT, or any other agent to “think carefully” and “be more critical” every single session, you load the skill once and it handles that layer for you.
The twist? The creator wasn’t trying to build something viral. They were just tired of typing the same vague coaching prompt over and over during ideation and creative writing sessions. So they packaged the whole pattern into a reusable skill that works across agents.
Here’s how to plug it in:
- ⚙️ Grab the Postmodernist skill from GitHub (search: kgeoffrey/postmodernist)
- Load it into Claude, ChatGPT, or whichever agent you’re running
- Run your usual writing or ideation prompt as normal
- The skill applies critical thinking frameworks to the output automatically
- 🔍 Review what it surfaces, iterate, and ship something tighter
Pro tip: This hits hardest during ideation loops, where AI tends to mirror your assumptions back at you in slightly fancier language. Run Postmodernist as a second pass on any first draft before you share it externally. It catches the soft thinking you’ll miss when you’re in flow.
Worth 10 minutes of your time this week 👉 Grab it, throw it at your last AI draft, and see what it calls out.
Created a Skill to improve critical thinking
by u/Radiant_Situation340 in PromptEngineering