The library · Prompts & skills
323 AI Prompts + 81 Installable Skills — Built to Work in ChatGPT, Claude & Gemini
Short answer: Hazel is a single library of 323 ready-to-run AI prompts and 81 installable AI skills that work in ChatGPT, Claude, Gemini and most other assistants without any setup or plugin. Every prompt ships with a filled-in worked example instead of blank [brackets], so you copy, paste and get usable output on the first run rather than the fifth.
What “works with everything” actually means
Most prompt products are built around one assistant, so they break the moment you switch. These are written as plain instructions with no tool-specific syntax, no plugin and no account to connect — which means the same prompt produces good output in ChatGPT, in Claude and in Gemini. You are not buying access to a tool. You are buying the words that make any of those tools perform.
That matters more every year, because the best model keeps changing. A prompt library that only works in one place is a bet on that place staying ahead. A model-agnostic one is not.
What’s in the 323
- Build with AI — 54 prompts + 10 skills. Websites, landing pages and full builds; app architecture, components and production code; scroll animation and motion; the AI image-to-video pipeline; and AI engineering (RAG, agents, evals).
- Create & Grow — 107 prompts + 20 skills. YouTube and long-form scripts; short-form for Reels, TikTok and Shorts; newsletters and threads; brand voice, positioning and paid ads; audience growth and monetization.
- Operate & Scale — 99 prompts + 20 skills + 10 plan-mode mega-prompts. Positioning and ICP; value-anchored pricing and offers; sales pages and e-commerce email flows; founder ops such as investor updates, churn and forecasting.
- The Vault & Xtras — all three in full, plus the 63-prompt Realistic UGC & Lip-Sync Kit, HIGGSFIELD PRO STUDIO, both App Creator projects and the brand kit. €30.
Prompts and skills are not the same thing
A prompt is a single instruction that produces one result. A skill is loaded once and changes every result after it, because the assistant is now operating as a specific expert with specific standards. Used together, the skill sets the level and the prompt sets the task — which is why the same request returns something you can send rather than something you have to rewrite. There is a fuller breakdown in prompts vs skills and what an AI skill is.
Knowing the right words is most of the job
The gap between a disappointing AI answer and an excellent one is almost never the model. It is the instruction. A vague request gets a vague, averaged answer because that is genuinely the best response to a vague request. A prompt that names the expert, supplies the real constraints and fixes the output format gets something specific, because you have removed the ambiguity the model was averaging over.
That is learnable — there is a framework for it in how to write better AI prompts. It is also skippable, which is the entire point of a library: 323 instructions where somebody already did that work, with the worked example attached so you can see what good looks like before you write your own.
What it costs
One system is a one-time €18. The complete library is a one-time €30 — against €54 for the three systems bought separately — and adds the UGC kit, the mega-prompts and the brand kit on top. On a per-item basis that is roughly €0.07 per prompt or skill. No subscription, unlimited use, yours to keep, with a 30-day money-back guarantee.
Hazel is an educational toolkit; the AI tools mentioned are third-party and not affiliated with Hazel. Your results depend on your own effort.
Frequently asked questions
How many AI prompts and skills do you get?
323 ready-to-run prompts and 81 installable AI skills in total, including a 63-prompt Realistic UGC and Lip-Sync kit. They are split across three systems: Build with AI (54 prompts, 10 skills), Create & Grow (107 prompts, 20 skills) and Operate & Scale (99 prompts, 20 skills).
Do these AI prompts work with ChatGPT, Claude and Gemini?
Yes. Everything is model-agnostic and written in plain language, so the same prompt works in ChatGPT, Claude, Gemini and most other assistants. There is no plugin, extension, account or special setup required.
What is an installable AI skill?
A skill is an expert persona you load into the assistant once, before you prompt. After that, every prompt in that session runs at that expert level. It is the difference between asking a generalist and asking a specialist who already knows the standards of the job.
Why are filled examples better than prompt templates?
A blank template leaves you guessing what belongs in each bracket, which is exactly the part most people get wrong. A filled example shows a working version first, so you swap the highlighted parts and keep the structure that makes it work.
How much does the full library cost?
A single system is a one-time €18. The complete library, The Vault & Xtras, is a one-time €30 instead of €54 for the three systems separately, and it adds the UGC kit, the plan-mode mega-prompts and the brand kit. No subscription, ever.
Do I need to be technical to use them?
No. Everything is written in plain language, and the install guide covers loading a skill into ChatGPT, Claude or Gemini step by step. If you can hold a conversation with an AI, you can use the library.