r/PromptEngineering on WeSearch

I expanded the free prompt/skills library I shared here last month

The 'Semantic DNA' Voice Replicator.

i found a prompt hack so stupid it should not work. it works every time.

best tool for quickly testing system prompt constraints across different models?

Anyone else tired of comparing AI models manually?

3-Month Behavioral Study: Nine Reproducible Failure Modes Across Claude, Gemini, ChatGPT, and Grok

I used to be exclusively a vibecoder during the first 3 years of university, but now I wantwant to switch to manual coding before it's too late. I want to learn it through building projects from scratch, and i want GPT to be my tutor, but I have no idea how to make him an effective one.

The 'Inverted' Logic Discovery.

After months of prompt iteration, I admitted some rules can't be prompt-engineered into stability.

This is the most useful thing I've found for figuring out which subscriptions ChatGPT already replaces for free.

Request for prompt review: file organisation, timeline notes, and structured workflow control

Expanding Agentic Capabilities: Multiple Bidirectional Async Tool Interactions During Live Conversations (Working on Codex support)

My prompts got 3x better the day I stopped writing more instructions and started writing more examples instead

The 4 inputs every agentic workflow actually needs — and the one most people skip that causes everything to break

[ShowIH] The dirty secret about using AI in 2026 — most people are still getting mediocre results

I built a tool for the weirdest bottleneck in AI-first development: waiting

i automated my entire saas marketing with n8n (spent 100+ hours so you don't have to)

I engineered 40 prompts that make Claude think like a principal engineer — here's the system behind them

The prompt chain I built to turn news articles into crossword clues

Parsing large text files for abusive messages

The 'Boardroom' Multi-Expert Debate.

"Start Fresh" after 4 hours, or watch it until it 'goes senile'?

Prompt Library - What apps are we using to store prompts?

Is there a way to reduce hallucinated internal API calls when running local models against a private codebase?

This Claude prompt gave me the most accurate outside-perspective of myself I’ve ever read.

Genie prompt project

ChatGPT 5.5 Custom instructions & More about you

Gemini Omni Flash feels less like another video generator and more like the first real AI video editor

The most useful thing I've changed about how I use Claude: I ask it to read my thinking like a smart friend who suspects I'm wrong.

The 'Syllable-Count' Rhythm Hack.

Best AI presentation maker you have used and would or wouldn't recommend?

Prompt for Researching Number of US locations of franchises

After my previous post blew up in this sub (link below), I took your feedback and now Briefing Fox has beginner friendly Agentic AI & Workflow feature. You can build AI agents with Claude, ChatGPT, OpenAI and others and it's way simpler than before.

Los gurús de IA te venden el prompt correcto.

Self-improving agents using only ChatGPT

Am I delusional for trying to build a more community-driven, affordable alternative to live chat / AI support tools?

General Discussion Hey everyone, I’m building something called Corthex, and I’d genuinely like some honest feedback…

Structured ad copy prompt that outputs 3 launch-ready variants — breakdown inside

Most “Prompt Engineering” Advice Fails Because It Ignores Constraint Decay

My prompt was getting too good at blocking fluff, so I added a "Utility Exception" to let it do basic tasks without breaking character (SutniPrompt v0.3.0-alpha)

Trying to tweak this prompt for "unending" recursive conversation. Any advice?

The 'Instructional Hierarchy' Protocol.

Cursor 50% off first month (Pro,Pro+,Ultra)

I analyzed the prompts evaluated on my tool in its first month – nearly half scored under 25/100 on one specific dimension

Claude bypassing rules and f***ing things up - Or how I spoke to Claude too much like I speak to humans. Encountering memory issues and a skill / project prompt to make things better (to be proven)

i tracked every AI tool i actually used for 30 days. the results destroyed my entire setup.

[SutniPrompt - v0.2.0-alpha] I updated my prompt: Forcing LLMs to ground themselves in time!

What is Role Prompting?

Indirect prompt injection via RAG chunks. How to detect it before it hits the model

The AI security risk most companies aren't tracking

30 prompts built specifically for real estate agents — formatting that actually works