PQS 25 (F) - prompt from www.reddit.com

The prompt

I've been deep in prompt engineering for a while now, and one thing that always frustrated me was how scattered everything was — good prompts buried in threads, saved in random notes apps, or just forgotten.

So I put together a free library of 200+ prompts organized across 18 categories (writing, coding, SEO, marketing, MCP workflows, and more). You can browse by category or search for exactly what you need.

No signup, no paywall — just a clean page you can bookmark and actually use.

👉 [https://promptflow.digital/prompts](https://promptflow.digital/prompts)

A few of my personal favorites in there:

\- \*\*Prompt optimizer:\*\* \*"Score this prompt 1–10 on: clarity, specificity, output-readiness, and role definition. Then output a rewritten version that scores 9+ on all four."\* — I run every prompt I write through this before using it seriously.

\- \*\*Chain-of-thought injector:\*\* \*"Take this prompt and add chain-of-thought reasoning instructions so the model thinks step by step before giving the final answer."\* — Simple but it genuinely changes the output quality on complex tasks.

\- \*\*Ruthless editor system prompt:\*\* \*"You are a ruthless editor. Your job is to cut every word that doesn't earn its place. You reduce every piece of copy by at least 30% without losing meaning. You prefer short sentences. You hate adverbs."\* — Set this as your system prompt once and you'll never go back.

Would love to hear which categories feel thin or what you'd want added — I'm actively building this out and community input genuinely shapes what goes in next.

What's a prompt you keep coming back to?