The 9-Layer MASTER Framework, 427 Prompts
Prompts engineered to actually work. Not the ones that just sound clever.
Completed exercises
All 55 prompt engineering exercises done against real situations: coffee brewing, an EM career decision, a Sierra backpacking trip, an apology I owed a teammate. Each shows the prompt I ran, what came back, and what I learned.
View exercisesSaved templates
372 reusable templates across 18 categories: email, code review, analysis, planning, negotiation, verification. Search, filter, copy. Every Full MASTER prompt has all 9 layers.
Browse libraryScraped prompts
A live feed of the best prompts from across the web, scored against the MASTER framework. Updated by a scheduled scraper. Source-attributed. The go-to place to discover prompts you didn't know existed.
See the feedThe Framework
Nine layers. Each one prevents a specific failure mode.
MASTER is what every prompt in this library is built on. It is not a checklist, it is a diagnosis tool. When output disappoints, it tells you which layer failed.
Mission
What success looks like, in one sentence.
Agent
The persona and expertise the model adopts.
Situation
The context the model needs to be calibrated.
Task
Decomposed sub-tasks, numbered, in order.
Examples
Input to output pairs. Showing beats telling.
Rules
Explicit constraints. What NOT to do.
Think
Chain-of-thought reasoning before responding.
Eval
Self-evaluation criteria before delivering.
Output
The exact shape of the final deliverable.
Start with the template that fits your task right now.
Use the category index to find your task. Fill in the brackets. Run it. Most templates produce usable output on the first try.
Open the library